Aldehyde Reactant Patents (Class 568/433)
  • Patent number: 4716249
    Abstract: Described is a process for preparing natural benzaldehyde and acetaldehyde and compositions of matter containing natural benzaldehyde and acetaldehyde as well as products produced thereby and organoleptic utilities thereof, which process comprises the step of contacting with base naturally occurring cinnamaldehyde or a natural product rich in cinnamaldehyde such as Ceylon oil of cinnamon, Ceylon cinnamon bark, Saigon cinnamon bark, cassia oil, Ceylon cinnamon quills, cinnamon leaf oil, oil of cinnamon Madagascar or the like according to the reaction: ##STR1## the reaction taking place in the absence of any other reagents except inert solvent and ionic surfactant or emulsifier.
    Type: Grant
    Filed: October 31, 1986
    Date of Patent: December 29, 1987
    Assignee: International Flavors & Fragrances Inc.
    Inventor: Alan O. Pittet
  • Patent number: 4705650
    Abstract: Compounds halogenated in the .alpha.-position to an electron-attracting group of formula ##STR1## in which X denotes a halogen atom, R denotes a hydrogen atom or a hydrocarbon radical or a radical --(CH.sub.2).sub.3 --COOR.sub.1 and Z denotes a radical --CHO, --COR.sub.2, --COOR.sub.3, --CONR.sub.4 R.sub.5, --CN, --SO.sub.2 R.sub.6, --NO.sub.2, --CO--(CH.sub.2)p--COO.sub.1 or --COO(CH.sub.2)p--COOR.sub.1 are made by a halogenating deacylation of a compound of formula ##STR2## in which R' denotes a hydrogen atom or a hydrocarbon radical, R" denotes a methyl radical and Z' denotes a radical --CHO, --COR.sub.2, --COOR.sub.3, --CONR.sub.4 R.sub.5, --CN, --SO.sub.2 R.sub.6 or --NO.sub.2 or R' and R" may form a radical --(CH.sub.2)-- or R' and R" may form a radical --CO--(CH.sub.2)p-- or --COO(CH.sub.2)p--, using an alkali metal alcoholate or an alkali or alkaline-earth metal carbonate and a halogenating agent.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: November 10, 1987
    Assignee: Rhone-Poulenc Sante
    Inventors: Gerard Mignani, Didier Morel
  • Patent number: 4700010
    Abstract: A catalytic process for the formylation, in the 2-position, of optionally substituted phenols, particularly 4-nonylphenol, using a catalyst comprising a tin phenoxide and a tertiary amine.
    Type: Grant
    Filed: August 7, 1985
    Date of Patent: October 13, 1987
    Assignee: Imperial Chemical Industries PLC
    Inventor: Arthur Ibbotson
  • Patent number: 4695657
    Abstract: A process for the preparation of compounds containing a difluoromethylene group in a position .alpha. to an oxygen atom. An alcohol or a phenol is brought into contact with trifluoroacetic acid or a halide or anhydride thereof in anhydrous liquid hydrofluoric acid, in the presence of boron trifluoride, in a quantity such that the absolute pressure of boron trifluoride is at least about one bar. The compounds obtained according to the invention are used as synthesis intermediates in the pharmaceutical, plant-protection, and dye industries, as anesthetics and as additives for lubricating oils.
    Type: Grant
    Filed: December 17, 1985
    Date of Patent: September 22, 1987
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventor: Michel Desbois
  • Patent number: 4683342
    Abstract: Described is a process for preparing natural benzaldehyde and acetaldehyde and compositions of matter containing natural benzaldehyde and acetaldehyde as well as products produced thereby and organoleptic utilities thereof, which process comprises the step of contacting with base naturally occurring cinnamaldehyde or a natural product rich in cinnemaldehyde such as Ceylon oil of cinnamon, Ceylon cinnamon bark, Saigon cinnamon bark, cassia oil, Ceylon cinnamon quills, Cinnamon leaf oil, oil of cinnamon Madagascar or the like according to the reaction: ##STR1## the reaction taking place in aqueous media and in the presence of a food grade or natural nonionic emulisifier, preferably a nonionic sorbitan derivative emulsifying agent and in the absence of any other reagents.
    Type: Grant
    Filed: August 13, 1986
    Date of Patent: July 28, 1987
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Arthur L. Liberman
  • Patent number: 4673766
    Abstract: A method is disclosed for producing benzaldehyde by fractionally steam distilling benzaldehyde from cinnamaldehyde in the presence of hydroxide catalyst and at a pH on the order of about 11 to about 13. Conversions of cinnamaldehyde to benzaldehyde can be achieved on the order of about 75% or more.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: June 16, 1987
    Assignee: Mallinckrodt, Inc.
    Inventors: Keith T. Buck, Anthony J. Boeing, Joseph E. Dolfini
  • Patent number: 4638096
    Abstract: A process is disclosed for preparing hydroxyarylaldehydes wherein a corresponding phenolic compound is reacted with formaldehyde, in the presence of a titanium or zirconium containing catalyst, optionally in the presence of a catalyst promoter. Among other uses, the aldehydes are particularly useful as intermediates in the preparation of the corresponding oximes, which find utility as metal extractants.
    Type: Grant
    Filed: October 12, 1982
    Date of Patent: January 20, 1987
    Assignee: Henkel Corporation
    Inventor: Michael J. Virnig
  • Patent number: 4617405
    Abstract: Alpha, beta carbonyl compounds are prepared from an acid anhydride selected from the group consisting of glutaric anhydride and 3-alkyl glutaric anhydride, and a beta-hydroxy carbonyl compound having the following chemical formula:R.sub.2 COH--CHR--CRO or R.sub.2 COH--CHR--CNwhere each R is any substitutent group.The process comprises: (a) reacting the acid anhydride and the beta-hydroxy carbonyl compound in the presence of a catalytically effective amount of an acid catalyst to form an ester; (b) reacting the ester in the presence of a catalytically effective amount of a base catalyst to form a alpha, beta-unsaturated carbonyl compound and a carboxylic acid; and (c) separating the alpha, beta-unsaturated carbonyl compound and the carboxylic acid.
    Type: Grant
    Filed: September 25, 1984
    Date of Patent: October 14, 1986
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Donald E. Kiely, Martin Seidman
  • Patent number: 4605778
    Abstract: The present invention relates to novel musk compounds, useful as fragrance materials which have the structure: ##STR1## wherein R is hydrogen or methyl and R.sub.1 and R.sub.2 are hydrogen, methyl, or ethyl, and provides methods for preparing these compounds from readily available intermediates. The invention also provides fragrance compositions which include the compounds, and processes for altering the organoleptic properties of perfume compositions, colognes and perfumed articles by adding organoleptically effective amounts of the compounds.
    Type: Grant
    Filed: June 6, 1984
    Date of Patent: August 12, 1986
    Assignee: Fritzsche Dodge & Olcott Inc.
    Inventors: Brian J. Willis, Teodosij Zazula
  • Patent number: 4604243
    Abstract: An olefin, especially an activated olefin, is arylated by reaction with an arylamine, such as an aniline, in an inert polar organic solvent and in the presence of an alkyl nitrite, a hydrogen halide, and a catalytic amount of a copper catalyst having the copper in an oxidation state below +2.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: August 5, 1986
    Assignee: Ethyl Corporation
    Inventor: Robert I. Davidson
  • Patent number: 4599457
    Abstract: An improvement in the process for preparing hydroxyarylaldehydes is disclosed where a phenolic compound is reacted with formaldehyde, in the presence of a catalyst such as a titanium or zirconium containing catalyst, optionally in the presence of a catalyst promoter, wherein the improvement is the addition of a yield effective amount of a modifier having the formula: ##STR1## where R.sub.1 is selected from the group consisting of: an alkyl group having from 1 to 12 carbon atoms, a cycloalkyl group that can have 5 and 6 carbon atoms, and an H, and where R.sub.2 is selected from the group consisting of: an alkyl group having from 1 to 12 carbon atoms, and a cyclo alkyl group that can have 5 to 6 carbon atoms; and where R.sub.1 and R.sub.2 can together form a cyclic group that can have 5 and 6 carbon atoms.
    Type: Grant
    Filed: March 20, 1985
    Date of Patent: July 8, 1986
    Assignee: Henkel Corporation
    Inventors: Phillip L. Mattison, LeRoy Krbechek
  • Patent number: 4588835
    Abstract: A process for preparing an alkoxyphenol represented by the formula: ##STR1## wherein R is hydrogen, alkyl having 1 to 4 carbon atoms, formyl, hydroxymethyl, alkoxymethyl, dialkoxymethyl, acetoxymethyl or diacetoxymethyl, R' is alkyl having 1 to 4 carbon atoms, and n is an integer of 1 to 5, characterized in that a phenol halide represented by the formula: ##STR2## wherein R and n are as defined above, and X is chlorine or bromine is reacted, in the presence of a copper salt serving as a catalyst and of a solvent, with a product prepared by heating, in the presence of a dehydrating agent, an alkali metal hydroxide and a compound of the formula R'OH wherein R' is as defined above.
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: May 13, 1986
    Assignee: Otsuka Kagaku Yakuhin Kabushiki Kaisha
    Inventors: Sigeru Torii, Hideo Tanaka, Mitsuo Akada
  • Patent number: 4585898
    Abstract: 3-Bromobenzaldehydes are prepared by reacting a benzaldehyde having a free 3-position with bromine chloride in the presence of aluminum chloride and a small amount of dibromomethane.
    Type: Grant
    Filed: December 18, 1984
    Date of Patent: April 29, 1986
    Assignee: Hardwicke Chemical Company
    Inventors: Roland L. Lau, John S. Hudson
  • Patent number: 4579975
    Abstract: Stilbene-4,4'-dialdehyde can be produced by reaction of ethylene with 4-bromobenzaldehyde in the presence of a base and of a palladium compound as catalyst in a simple and economical manner in high yields, by performing the reaction under a partial pressure of ethylene of 0.01 to 1 bar. The stilbene-4,4'-dialdehyde obtained is suitable for example for producing optical brighteners.
    Type: Grant
    Filed: March 13, 1985
    Date of Patent: April 1, 1986
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Reinehr, Alwyn Spencer
  • Patent number: 4568772
    Abstract: This invention discloses a novel process for producing p-t-butyl-.alpha.-methyldihydrocinnamaldehyde which comprises converting the .alpha.-methyldihydrocinnamaldehyde to an enamine, oxazolidine or a Schiff's base, reacting said derivative with a tertiary butyl cation, and then removing the protective group.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: February 4, 1986
    Assignee: Givaudan Corporation
    Inventors: Albert Gabbai, Karl-Fred De Polo
  • Patent number: 4564712
    Abstract: Diphenyl ethers are prepared by Ullmann reaction of alkali metal phenolates with halobenzenes in the presence of basic copper carbonate and/or copper salts of lower aliphatic carboxylic acids as catalysts. These special catalysts have a better catalytic activity than other copper catalysts known for the Ullmann reaction.The diphenyl ethers prepared or obtainable according to the invention are mainly intermediates in diverse fields such as pharmaceuticals or plant protecting agents.
    Type: Grant
    Filed: November 23, 1983
    Date of Patent: January 14, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Herbert Kuckertz, Georg Schaeffer
  • Patent number: 4556743
    Abstract: A process is disclosed for selectively decarbonylating a compound of the formula ##STR1## in a mixture containing I and a compound of the formula ##STR2## wherein R is hydrogen or at least one lower alkyl group and R.sup.1 is hydrogen or a lower alkyl group. In such a process, the mixture is treated with a catalytically effective amount of a palladium catalyst to selectively decarbonylate the compound of formula I therein and the compound of formula II is recovered from the treated mixture.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: December 3, 1985
    Assignee: Chem-Fleur International, Inc.
    Inventors: James E. McKenna, Thomas Plocek
  • Patent number: 4551558
    Abstract: Substituted bromobenzaldehydes, e.g., 5-bromovanillin, are facilely prepared with overall avoidance of HBr by-product, by (i) first brominating the corresponding benzaldehyde with a less than stoichiometric amount of bromine, and (ii) completing said bromination reaction with a brominating couple which comprises (1) the hydrobromic acid generated in situ in the step (i) and (2) a bromide ion oxidizer.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: November 5, 1985
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Serge Ratton, Jean-Luc Bougeois
  • Patent number: 4551557
    Abstract: Substituted bromobenzaldehydes, e.g., 5-bromovanillin, are facilely prepared without conjoint production of HBr, by brominating the corresponding benzaldehydes with a brominating agent couple which comprises hydrobromic acid and a bromide ion oxidizer.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: November 5, 1985
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventors: Serge Ratton, Jean-Luc Bougeois
  • Patent number: 4542233
    Abstract: Improvement in the process for preparing biaryl compounds via coupling of an arylamine with an arene in the presence of a nitrite, an acid and copper metal or a derivative thereof; the improvement is consisting in adding to the reaction mixture a trialkylorthoformate. The process may be used for preparing drugs such as Flurbiprofen and Xenbucin or intermediate compounds particularly useful for preparing Flurbiprofen, Flufenisal, Chlordimorin, Xenbucin, Xenysalate, Xenyhexenic acid and the like.
    Type: Grant
    Filed: July 20, 1983
    Date of Patent: September 17, 1985
    Assignee: Biaschim S.p.A.
    Inventors: Oreste Piccolo, Aldo Belli, Giovanni Villa, Enrico Zen, Attilio Citterio
  • Patent number: 4540828
    Abstract: Catalysts and a method of using said catalysts for the alkoxylation of a variety of materials is disclosed. Catalysts so described produce alkoxylates having a very sharp alkoxylate distribution. The catalysts are supported and unsupported dialkoxy and dialkyl metal fluorides and halides and alkyl metal difluorides and dihalides.
    Type: Grant
    Filed: February 25, 1983
    Date of Patent: September 10, 1985
    Assignee: Vista Chemical Company
    Inventor: Kang Yang
  • Patent number: 4523037
    Abstract: By reacting, using as a catalyst a modified or unmodified cyclodextrin, a phenol compound with a haloform in the presence of an alkali metal hydroxide, while maintaining the molar ratio of the cyclodextrin to the haloform at 0.5 to 10, a substituent group derived from the haloform can be introduced to the para-position of the phenol compound with high selectivity, whereby useful para-substituted phenol derivatives can be advantageously obtained.
    Type: Grant
    Filed: September 7, 1983
    Date of Patent: June 11, 1985
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Hidefumi Hirai, Makoto Komiyama
  • Patent number: 4515987
    Abstract: Described is a genus of compounds defined according to the structure: ##STR1## (Z) represents one of the moieties ##STR2## as well as the substantially pure compound defined according to the structure: ##STR3## and the use thereof for augmenting or enhancing the aroma or taste of consumable materials including foodstuffs, chewing gums, medicinal products, toothpastes, chewing tobaccos, smoking tobaccos, smoking tobacco articles, perfumes, colognes and perfumed articles including solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softeners, fabric softener articles, perfumed articles, hair preparations and the like.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: May 7, 1985
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Richard M. Boden, Theodore J. Tyszkiewicz, Michael Licciardello, Manfred H. Vock, Joaquin F. Vinals, Patrick Whalen, Marie R. Hanna
  • Patent number: 4507492
    Abstract: Allyl derivatives of phenols, thiophenols and arylamines are prepared by contacting such aromatic reactant with an allyl lower alkyl carbonate in the presence of a molybdenum, tungsten or Group VIII metal.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: March 26, 1985
    Assignee: The Dow Chemical Company
    Inventor: Edmund P. Woo
  • Patent number: 4504671
    Abstract: Aldoxime or ketoxime-O-alkanoic acid is prepared by transoximation of an aldehyde or ketone, the reaction being conducted in a liquid phase at a pressure below one atmosphere. Conversion of the aldoxime or ketoxime-O-alkanoic acid to the ester or salt form is also described.
    Type: Grant
    Filed: October 15, 1982
    Date of Patent: March 12, 1985
    Assignee: PPG Industries, Inc.
    Inventors: Dennis K. Krass, John C. Crano, Melvin S. Newman
  • Patent number: 4500738
    Abstract: Alkoxymethyl protecting groups for organic hydroxyl substituents may be introduced into the desired compounds by acetal exchange between an alkylal and an alcohol in the presence of phosphorus oxychloride and dimethylformamide.
    Type: Grant
    Filed: December 8, 1983
    Date of Patent: February 19, 1985
    Assignee: American Home Products Corporation
    Inventor: Henry G. Schouten
  • Patent number: 4495353
    Abstract: The invention relates to a process for substituting for a halogen atom attached to the nuclear carbon atom of an aromatic ring, a substituent of the formula -O-R wherein R represents alkyl, alkenyl, alkynyl or benzyl, which process comprises reacting the halogen-substituted aromatic compound with an alcoholate of the formula M.sup.n+ [O--R].sub.n.sup..crclbar. wherein M is an alkali metal atom or alkaline earth metal atom, n is the valency of M, and R is as defined above, in the presence of an active catalyst mixture comprising (i) a formic acid ester of an organic alcohol having the formula R.sup.2 --O--CO--H wherein R.sup.2 is as defined for R above; and (ii) a cuprous salt; in a liquid medium which is a solvent for the catalyst mixture and in which the halogen-substituted aromatic compound is at least partially soluble, under substantially anhydrous conditions and a non-oxidizing atmosphere. The invention further relates to a catalyst used in the above process.
    Type: Grant
    Filed: June 13, 1983
    Date of Patent: January 22, 1985
    Assignee: Sterling Drug Inc.
    Inventor: Robert J. Bryant
  • Patent number: 4487975
    Abstract: Phenols, including the polyhydric phenols, are selectively monoetherified with an alkyl or alkenyl carboxylate, or admixture of compounds adapted to in situ form such carboxylate, in the presence of a salt of a carboxylic acid.
    Type: Grant
    Filed: August 11, 1982
    Date of Patent: December 11, 1984
    Assignee: Rhone-Poulenc Industries
    Inventor: Serge Ratton
  • Patent number: 4473713
    Abstract: At least one of the other functions comprising an aryl-aliphatic ether, e.g., veratrol, is catalytically hydrolyzed with water, e.g., to guaiacol, in the presence of a catalytically effective amount of a salt of a carboxylic acid.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: September 25, 1984
    Assignee: Rhone-Poulenc Specialites Chimiques
    Inventor: Serge Ratton
  • Patent number: 4471126
    Abstract: There is a method for the production of 3-phenylpyrrole derivatives having the general formula ##STR1## wherein X is halogen, nitro or haloalkyl having 1 to 3 carbon atoms;n is 0, 1 or 2; andZ is hydrogen or halogen;which comprises reacting a compound having the general formula ##STR2## wherein X and n are as previously defined; andY is hydrogen or halogen;with ammonia or aqueous ammonia in an organic solvent.A compound having the general formula [I] is useful as fungicide or intermediate thereof.
    Type: Grant
    Filed: April 18, 1983
    Date of Patent: September 11, 1984
    Assignee: Nippon Soda Company Limited
    Inventors: Akiyoshi Ueda, Humihiko Nagasaki, Yutaka Takakura, Shigeru Kojima
  • Patent number: 4465864
    Abstract: An aromatic compound is hydroxylated by reacting the aromatic compound in an aqueous solvent with a triiodide salt to form a reaction mixture containing the corresponding iodoaromatic compound. The mixture is reacted, without separating the iodoaromatic compound, with a hydroxylating agent to form the corresponding hydroxy aromatic compound. The iodide salt, formed as a by-product of the reaction, is then separated for reuse in the process.
    Type: Grant
    Filed: August 2, 1982
    Date of Patent: August 14, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventors: Geoffrey K. Cooper, Lewis G. Harruff
  • Patent number: 4453018
    Abstract: An alkylated phenolic ether is prepared by reacting in the absence of a protic solvent a phenolic compound containing an unreacted phenolic hydroxy group with an alkyl sulfite of the formula (RO).sub.2 SO in which R is a one to four carbon alkyl group, the reaction occurring in one step and without the intermediate preparation of a phenolate.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: June 5, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventor: Randall B. Nelson
  • Patent number: 4453017
    Abstract: A methylated phenolic ether is prepared by reacting in the absence of a protic solvent a phenolic compound containing an unreacted phenolic hydroxy group with trimethyl phosphate, the reaction occurring in one step and without the intermediate preparation of a phenolate.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: June 5, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventor: Randall B. Nelson
  • Patent number: 4453004
    Abstract: A process for the preparation of an alkylated phenolic ether comprising reacting a phenolic compound at a temperature of at least the melting point of the phenol and in the absence of a solvent with an alkylating agent until an alkylated phenol is produced.
    Type: Grant
    Filed: April 1, 1982
    Date of Patent: June 5, 1984
    Assignee: International Telephone and Telegraph Corporation
    Inventor: Randall B. Nelson
  • Patent number: 4446075
    Abstract: Substituted bromofluorobenzene, wherein the fluorine is in para-position and the bromine in meta-position to another substituent, is prepared by direct bromination of the corresponding fluorobenzene derivative. Bromination is advantageously carried out in the presence of a catalyst, preferably a metal or metal salt. The elementary bromine is used in an amount of 0.9 to 1.3 mols per mol of fluorobenzene derivative and the reaction temperature is between 20.degree. and 200.degree. C. The bromofluorobenzene derivatives are suitable for the synthesis of medicaments and plant protective agents.
    Type: Grant
    Filed: February 20, 1981
    Date of Patent: May 1, 1984
    Assignee: Riedel-de Haen AG
    Inventors: Kurt Eiglmeier, Reinhard Knieps
  • Patent number: 4395571
    Abstract: Racemic mixtures of d,1-2-(6-methoxy-2-naphthyl)propanal are resolved by forming a condensation product with N-R-D-glucamine or a salt thereof where R is hydrogen, alkyl of 1 to 36 carbon atoms or cycloalkyl of 3 to 8 carbon atoms, from which a product substantially enriched in d-2-(6-methoxy-2-naphthyl)propanal can be obtained and then can be selectively oxidized to d-2-(6-methoxy-2-naphthyl)propionic acid.
    Type: Grant
    Filed: June 3, 1982
    Date of Patent: July 26, 1983
    Assignee: Syntex (U.S.A.) Inc.
    Inventor: Charles A. Dvorak
  • Patent number: 4389527
    Abstract: This invention discloses a novel process for producing dihydrocinnamaldehyde derivatives which comprises reacting a benzene derivative with an alken-2-ylidene diacylate or an .alpha.-ethylenic aldehyde in trifluoroacetic acid (TFA).
    Type: Grant
    Filed: June 30, 1981
    Date of Patent: June 21, 1983
    Assignee: Givaudan Corporation
    Inventors: Roy H. Valentine, Harold A. Brandman
  • Patent number: 4379026
    Abstract: A process for the purification in the presence of water of impure benzaldehyde by which a purified benzaldehyde is prepared which has improved color stability and improved olfactory characteristics. The process is comprised of the steps of treating the impure benzaldehyde simultaneously with water and a metal less noble than hydrogen followed by distillation.
    Type: Grant
    Filed: January 20, 1982
    Date of Patent: April 5, 1983
    Assignee: Stamicarbon, B.V.
    Inventor: Cornelis Jongsma
  • Patent number: 4351962
    Abstract: A process is provided for the preparation of hydroxy benzene carboxaldehydes having the formula: ##STR1## wherein: R is selected from the group consisting of alkyl, alkoxy, cycloalkyl, aryl, alkoxyalkyl, fluoroalkyl, and hydroxyalkyl oxyalkylene having from one to about twenty carbon atoms; hydroxyalkyl having at least two to about twenty carbon atoms; hydroxy; aldehyde CHO; and halogen;n.sub.1, n.sub.2 and n.sub.3 are zero or 1; and at least one of n.sub.1, n.sub.2 and n.sub.3 is 1; andx is zero, 1, 2, 3 or 4, which comprises:(1) condensing with a formaldehyde compound a phenol having the formula: ##STR2## wherein R is selected from the group consisting of alkyl, alkoxy, hydroxyalkyl, cycloalkyl, aryl, alkoxyalkyl, fluoroalkyl, and hydroxyalkyl oxyalkylene having from one to about twenty carbon atoms; hydroxy; and halogen; andx is zero, 1, 2, 3 or 4,and unsubstituted in at least one ortho or para position in an aqueous reaction medium comprising phenol:HCHO in a molar ratio within the range from about 1:0.
    Type: Grant
    Filed: July 11, 1980
    Date of Patent: September 28, 1982
    Assignee: Rhone Poulenc Inc.
    Inventors: Peter S. Gradeff, Stanley T. Murayama
  • Patent number: 4350833
    Abstract: Terephthaldialdehyde monoacetals represented by the general formula: ##STR1## (wherein, R.sub.1 and R.sub.2 are lower alkyl groups) are novel compounds, and they are produced by the reaction of terephthaldialdehyde with alcohols in the presence of a strongly acidic substance as a catalyst.
    Type: Grant
    Filed: January 28, 1981
    Date of Patent: September 21, 1982
    Inventor: Kunihiro Ichimura
  • Patent number: 4346239
    Abstract: A process for the preparation of 2-methylene aldehydes is disclosed wherein formaldehyde is reacted with an aldehyde of the general formula R--CH.sub.2 CHO, where R stands for a substituted or unsubstituted organic radical having from 2 to 12 carbon atoms. The reaction takes place in the presence of a mixture of a secondary amine and an organic carboxylic acid having up to 5 carbon atoms.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: August 24, 1982
    Assignee: Ruhrchemie AG
    Inventors: Hanswilhelm Bach, Eike Brundin, Wilhelm Gick
  • Patent number: 4335055
    Abstract: Compounds of the formula I ##STR1## in which Z, Z.sub.1, R, m and p are as defined in patent claim 1, can be obtained in a simple and economical manner by a novel process wherein a halide of the formula II ##STR2## is reacted with a substituted or unsubstituted vinylbenzene or vinylnaphthalene derivative in the presence of a base and of certain palladium catalysts, such as palladium acetate. The compounds (I) or functional derivatives preparable therefrom are useful, for example, for the preparation of known dyes or fluorescent brighteners, or can be used directly as fluorescent brighteners or as scintillators.
    Type: Grant
    Filed: May 8, 1981
    Date of Patent: June 15, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans-Ulrich Blaser, Dieter Reinehr, Alwyn Spencer
  • Patent number: 4328363
    Abstract: Halogen-substituted olefin addition compounds that contain a carbonyl group are formed by oxidatively adducting an olefin and a carbonyl compound such as a ketone, aldehyde, or ester. The method consists of reacting the olefin and the carbonyl component, in solution, with an oxidizing ion of manganese, cerium or vanadium in the presence of fluoride, chloride or bromide ion. This ionic component is incorporated in the adduct and appears on the olefin-derived carbon atom gamma to the carbonyl group. The gamma halogen substituted adducts are readily converted to cyclopropane derivatives, including pyrethroid intermediate compounds.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: May 4, 1982
    Assignee: Mobil Oil Corporation
    Inventors: El-Ahmadi I. Heiba, Ralph M. Dessau
  • Patent number: 4322563
    Abstract: Substituted biphenyl-2-carboxaldehydes are prepared in good yield by reacting palladium complexes of substituted benzaldehyde aniline Schiff bases with substituted phenylmagnesium bromides in the presence of at least six, preferably eight, molar equivalents of triphenylphosphine.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: March 30, 1982
    Assignee: Merck & Co., Inc.
    Inventor: William F. Hoffman
  • Patent number: 4317933
    Abstract: This invention comprises an alkylation, reduction and transesterification process for the preparation of ester substituted phenols. The products are useful as antioxidants and may be prepared in high yields and with a high degree of purity.
    Type: Grant
    Filed: November 9, 1977
    Date of Patent: March 2, 1982
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Dane K. Parker
  • Patent number: 4316989
    Abstract: A process for preparing difluoromethoxy derivatives of aromatic aldehydes having a common formula ##STR1## where Z is H,H; or n is a whole number of 1 and 2.The above process comprises the reaction between oxy derivatives of aromatic aldehydes selected from the group consisting of monooxy derivatives of aromatic aldehydes, and difluorochloromethane which reaction is carried out in an aqueous-dioxane medium at a temperature of 60.degree. to 70.degree. C., in the presence of 6 to 10 moles of caustic alkali per 1 mole of a starting oxyaldehyde.
    Type: Grant
    Filed: May 29, 1980
    Date of Patent: February 23, 1982
    Inventors: Jury A. Fialkov, Svetlana V. Shelyazhenko
  • Patent number: 4314086
    Abstract: Aliphatic/aromatic ethers are prepared by reacting an aliphatic halide with either an alkali or alkaline earth metal, or ammonium phenolate or naphtholate, in an inert organic solvent, and in the presence of at least one tertiary amine sequestering agent having the formula:N--CHR.sub.1 CHR.sub.2 --O--CHR.sub.3 --CHR.sub.4 --O--.sub.n R.sub.5 ].sub.
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: February 2, 1982
    Assignee: Rhone-Poulenc Industries
    Inventors: Gerard Soula, Daniel Michelet
  • Patent number: 4307034
    Abstract: An inert organic solvent dispersion of alkali hydroxide is prepared by mixing an alkali hydroxide, an inert organic solvent and a stabilizer and heating and stirring at the temperature for forming the pasty alkali hydroxide and cooling the dispersion. The dispersion of alkali hydroxide is used in a reaction of an active methylene compound with an organoalkyl halide such as a reaction of a halophenylacetonitrile with an isopropyl halide to obtain .alpha.-isopropyl halophenylacetonitrile.
    Type: Grant
    Filed: September 13, 1979
    Date of Patent: December 22, 1981
    Assignee: Ihara Chemical Industry Co., Ltd.
    Inventors: Yoshiki Nakayama, Taro Izawa, Yasushi Higuchi, Yutaka Ohishi, Chihiro Yazawa
  • Patent number: 4298762
    Abstract: Improved conversions of primary allylic and benzylic alcohols are obtained in an Oppenauer oxidation process, under Oppenauer oxidation conditions, by carrying out the oxidation employing furfural as the hydrogen acceptor. Primary alcohols to which the present invention relates are allylic alcohols substituted in at least the 2-position with a hydrocarbon radical and benzylic alcohols.
    Type: Grant
    Filed: December 5, 1979
    Date of Patent: November 3, 1981
    Assignee: SCM Corporation
    Inventors: William J. Ehmann, Walter E. Johnson, Jr.
  • Patent number: 4288386
    Abstract: The Ullman reaction for the preparation of diaryl ethers by coupling aryl halides with metal phenolates is conducted in the presence of at least one tertiary amine sequestering agent having the formula:N--CHR.sub.1 --CHR.sub.2 --O--CHR.sub.3 --CHR.sub.4 --O--.sub.n R.sub.5 ].sub.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: September 8, 1981
    Assignee: Rhone-Poulenc Industries
    Inventors: Gerard Soula, Louis Linguenheld