At Least Three Oxygens Containing Patents (Class 568/598)
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Publication number: 20130096209Abstract: The present invention provides edible compositions comprising a compound of the present invention, food products comprising such edible compositions and methods of preparing such food products. The present invention also provides methods of reducing the amount of NaCl in a food product, methods of reducing the sodium intake in a diet, and methods of reducing bitter taste in a food product.Type: ApplicationFiled: April 15, 2011Publication date: April 18, 2013Applicants: Kraft Foods Global Brands LLC, Chromocell CorporationInventors: David Hayashi, William P. Jones, Jane V. Leland, Peter H. Brown, Joseph Gunnet, Daniel Lavery, Louise Slade, Kambiz Shekdar, Jessica Langer
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Publication number: 20110054221Abstract: A process for preparing polyoxymethylene dimethyl ethers from methanol is disclosed. For example, the process comprises contacting methanol with at least one oxidant in the presence of at least one catalyst wherein the at least one catalyst comprises at least one Group VIB metal component, such as in an amount of from about 0.5 to about 50 wt % (in terms of metal oxide) and at least one Group VIII metal component, such as in an amount of from about 0.2 to about 20 wt % (in terms of metal oxide), and at least one molecular sieve having acidic catalytic activity, such as in an amount of from about 40 to about 95 wt %, based on the total weight of the at least one catalyst for a time sufficient to obtain polyoxymethylene dimethyl ethers.Type: ApplicationFiled: February 26, 2010Publication date: March 3, 2011Inventors: Peng Yu, Jingsong Liu, Junfeng Rong, Changzhi Shi, Qiang Fu, Jin Wang, Wei Zhang, Xuhua Zhou
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Patent number: 7834220Abstract: Provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate and (E3,Z5)-3,5-dodecadienyl acetate which is a sex pheromone of Brazilian apple leafminer. Specifically, provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate, comprising steps of hydrolyzing 5,5-diethoxy-(Z3)-3-pentenyl methoxymethyl ether in the presence of an acid to obtain 4-formyl-(E3)-butenyl methoxymethyl ether; reacting the 4-formyl-(E3)-butenyl methoxymethyl ether with alkylidene triphenylphosphorane in accordance with the Wittig reaction to obtain (E3,Z5)-3,5-alkadienyl methoxymethyl ether; and obtaining (E3,Z5)-3,5-alkadienyl acetate using the (E3,Z5)-3,5-alkadienyl methoxymethyl ether as a starting substance.Type: GrantFiled: November 18, 2009Date of Patent: November 16, 2010Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Miyoshi Yamashita, Takehiko Fukumoto
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Patent number: 7732367Abstract: A catalyst for oxidation of unsaturated and/or saturated aldehyde to unsaturated acids is disclosed where the catalyst including at least molybdenum (Mo), phosphorus (P), vanadium (V), bismuth (Bi), and a first component selected from the group consisting of potassium (K), rubidium (Rb), cesium (Cs), thallium (Tl), or mixtures or combinations thereof, where the catalyst has at least 57% medium pores and a nitric acid to molybdenum mole ratio of at least 0.5:1 or at least 6.0:1 moles of HNO3 per mole of Mo12. Methods for making and using such catalysts are also disclosed.Type: GrantFiled: July 25, 2005Date of Patent: June 8, 2010Assignee: Saudi Basic Industries CorporationInventors: Scott A. Stevenson, Wugeng Liang, James W. Kauffman, Lixia Cai, Angie McGuffey, Joseph R. Linzer
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Publication number: 20100069664Abstract: Provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate and (E3,Z5)-3,5-dodecadienyl acetate which is a sex pheromone of Brazilian apple leafminer. Specifically, provided is a method for preparing (E3,Z5)-3,5-alkadienyl acetate, comprising steps of hydrolyzing 5,5-diethoxy-(Z3)-3-pentenyl methoxymethyl ether in the presence of an acid to obtain 4-formyl-(E3)-butenyl methoxymethyl ether; reacting the 4-formyl-(E3)-butenyl methoxymethyl ether with alkylidene triphenylphosphorane in accordance with the Wittig reaction to obtain (E3,Z5)-3,5-alkadienyl methoxymethyl ether; and obtaining (E3,Z5)-3,5-alkadienyl acetate using the (E3,Z5)-3,5-alkadienyl methoxymethyl ether as a starting substance.Type: ApplicationFiled: November 18, 2009Publication date: March 18, 2010Inventors: Miyoshi Yamashita, Takehiko Fukumoto
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Publication number: 20080228009Abstract: Process for preparing 1,1,4,4-tetraalkoxybut-2-ene derivatives of the general formula (I), where the radicals R1 and R2 are each, independently of one another, hydrogen, C1-C6-alkyl, C6-C12-aryl, such as phenyl, or C5-C12-cycloalkyl or R1 and R2 together with the double bond to which they are bound form a C6-C12-aryl radical, such as phenyl, a phenyl radical substituted by one or more C1-C6-alkyl groups, halogen atoms or alkoxy groups or a monounsaturated or polyunsaturated C5-C12-cycloalkyl radical, R3, R4 are each, independently of one another, hydrogen, methyl, trifluoromethyl or nitrile, which comprises electrochemically oxidizing 1,4-dialkoxy-1,3-butadiene of the formula II where the radicals R1, R3 and R4 have the same meanings as in the formula I, in the presence of a C1-C6-alkyl alcohol.Type: ApplicationFiled: July 31, 2006Publication date: September 18, 2008Applicant: BASF SEInventors: Ingo Richter, Hermann Putter, Ulrich Griesbach, Till Gerlach
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Patent number: 6919480Abstract: The present invention provides novel processes for preparing a fluorinated acyl fluoride and a fluorinated vinyl ether.Type: GrantFiled: December 5, 2003Date of Patent: July 19, 2005Assignee: Asahi Glass Company, LimitedInventors: Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Daisuke Shirakawa, Shin Tatematsu
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Patent number: 6747174Abstract: The present invention provides novel processes for preparing a fluorinated acyl fluoride and a fluorinated vinyl ether.Type: GrantFiled: January 28, 2003Date of Patent: June 8, 2004Assignee: Asahi Glass Company, LimitedInventors: Takashi Okazoe, Kunio Watanabe, Masahiro Ito, Daisuke Shirakawa, Shin Tatematsu
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Patent number: 6673971Abstract: A process for the preparation of 1,1,4,4-tetramethoxy-2-butene by reacting 2,5-dimethoxydihydrofuran with methanol in the presence of acids comprises carrying out the reaction in the presence of solid catalysts having acidic centers.Type: GrantFiled: March 19, 2002Date of Patent: January 6, 2004Assignee: BASF AktiengesellschaftInventors: Christoph Wegner, Joachim Paust, Hansgeorg Ernst
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Patent number: 6407291Abstract: A process for the preparation of 1,1,4,4-tetramethoxy-2-butene by reacting 2,5-dimethoxydihydrofuran with methanol in the presence of acids comprises carrying out the reaction in the presence of solid catalysts having acidic centers.Type: GrantFiled: September 26, 2000Date of Patent: June 18, 2002Assignee: BASF AktiengesellschaftInventors: Christoph Wegner, Joachim Paust, Hansgeorg Ernst
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Patent number: 6008400Abstract: Phosphoramidite oligonucleotide synthesis is facilitated by the use of fluoride-labile 5' silyl protecting groups. RNA synthesis is improved by the use of 2 orthoester protecting groups. Reactions are conducted on a solid phase support and acidic deprotection conditions are avoided, as is the necessity of oxidizing the phosphite linkage between each coupling reaction.Type: GrantFiled: December 19, 1997Date of Patent: December 28, 1999Inventors: Stephen Scaringe, Marvin H. Caruthers
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Patent number: 5739394Abstract: The invention relates to novel 3,3-dioxy-4,4,4-trifluorobutyric acid derivatives of the formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent C.sub.1 -C.sub.10 -alkyl, or represent cyclohexyl, or represent optionally substituted C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.14 -arylalkyl, orR.sup.1 and R.sup.2 together represent C.sub.2 -C.sub.4 -alkylene which is optionally mono- or disubstituted by methyl, or optionally substituted ortho-arylene,R.sup.3 represents hydrogen or C.sub.1 -C.sub.10 -alkyl, or represents cycloalkyl, or represents optionally substituted C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.Type: GrantFiled: December 16, 1996Date of Patent: April 14, 1998Assignee: Bayer AktiengesellschaftInventor: Norbert Lui
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Patent number: 5616812Abstract: A method of production of polyvinyl ether compound by which the polyvinyl ether compound having a desired degree of polymerization is produced reliably, safely and efficiently and a novel polyvinyl ether compound useful as lubricating oil for compression-type refrigerators, electric insulation oil and the like are disclosed. The method of production of the present invention is a method of producing a polyvinyl ether compound which comprises polymerizing a vinyl ether compound in the presence of a Lewis acid catalyst and a specific acetal or a method of producing a polyvinyl ether compound which comprises forming an acetal by reaction of a vinyl ether compound with a specific alcohol in the presence of a Lewis acid catalyst, then adding the vinyl ether compound to the acetal and polymerizing the vinyl ether compound. The polyvinyl ether compound of the present invention is homopolymer or a copolymer of an alkyl vinyl ether comprising the constituting unit expressed by the general formula: ##STR1## (R.sup.Type: GrantFiled: September 13, 1994Date of Patent: April 1, 1997Assignee: Idemitsu Kosan Co., Ltd.Inventors: Tatsuya Egawa, Yasuhiro Kawaguchi, Kenji Mogami, Nobuaki Shimizu
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Patent number: 5599848Abstract: A process for preparing a mixture of 8E,10E-dodecadienol (Ia), 8E,10Z-dodecadienol (Ib), 8Z,10E-dodecadienol (Ic) and 8Z,10Z-dodecadienol (Id),H.sub.3 C--CH.dbd.CH--CH.dbd.CH--(CH.sub.2).sub.6 --CH.sub.2 --OH(8E,10E=Ia)(8E,10Z=Ib)(8Z,10E=Ic)(8Z,10Z=Id)starting from 1,8-octanediol (II) which is converted with a halogenating agent into (III)Hal-CH.sub.2 --(CH.sub.2).sub.6 --CH.sub.2 --OH (III)where (III) is subsequently reacted with (IV),H.sub.2 C.dbd.CH--O--R (IV)to give (V)Hal-CH.sub.2 --(CH.sub.2).sub.6 --CH.sub.2 --O--CH(CH.sub.3)--OR(V),(V) is converted in the presence of magnesium and crotonaldehyde into (VI)H.sub.3 C--CH.dbd.CH--CH(OH)--(CH.sub.2).sub.8 --O--CH(CH.sub.3)--OR(VI)and the protective group R and the hydroxyl group are simultaneously eliminated from (VI) in the presence of acid, novel intermediates for this process, and methods for controlling the codling moth Cydia pomonella by interfering with mating using this mixture are described.Type: GrantFiled: August 7, 1995Date of Patent: February 4, 1997Assignee: BASF AktiengesellschaftInventors: Ulrich Klein, Ulrich Neumann, Wolfgang Mackenroth, Guenter Renz, Wolfgang Krieg, Christiane Mackenroth, Ernst Buschmann, Jacobus J. DeKramer, Roland Milli
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Patent number: 5250715Abstract: The present invention provides an optically active 2-methylenepentane derivative represented by the general formula ##STR1## (wherein R.sup.1 is a protective group for hydroxyl, R.sup.3 is a protective group for hydroxyl, X is a halogen atom or R.sup.4 SO.sub.3 group (wherein R.sup.4 is an alkyl or an aryl), and the symbol * represents an asymmetric carbon atom).Type: GrantFiled: March 30, 1992Date of Patent: October 5, 1993Assignee: Daiso Co., Ltd.Inventors: Takashi Takahashi, Yoshikazu Takehira
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Patent number: 5216051Abstract: The invention relates to novel tri-acetal polyol compounds and to a crystalline polyolefin composition having dispersed therein a nucleating agent composed of one or more of said polyol acetals.Type: GrantFiled: October 28, 1991Date of Patent: June 1, 1993Assignee: Allied-Signal Inc.Inventors: Tammy L. Smith, Julie R. Schollmeyer, Yash P. Khanna, Kristina A. Miller, Divarakaran Masilamani
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Patent number: 5216187Abstract: The present invention provides an optically active 2-methylenepentane derivative represented by the general formula ##STR1## (wherein R.sup.1 is a protective group for hydroxyl, R.sup.3 is a protective group for hydroxyl, X is a halogen atom or R.sup.4 SO.sub.3 group (wherein R.sup.4 is an alkyl or an aryl), and the symbol * represents an asymmetric carbon atom).Type: GrantFiled: July 9, 1991Date of Patent: June 1, 1993Assignee: Daiso Co., Ltd.Inventors: Takashi Takahashi, Yoshikazu Takehira
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Patent number: 5206443Abstract: Alkanediol bisacetals useful as surface-active substances for industrial purposes, in particular in washing and cleaning agents, have the formula I ##STR1## where R.sup.1 is alkyl or alkenyl of from 6 to 30 carbon atoms,A is 1,2-alkylene of from 2 to 4 carbon atoms,m is from 0 to 50,within each of the pairs R.sup.1, A and m the meanings being identical or different, andn is from 2 to 20.Type: GrantFiled: April 20, 1992Date of Patent: April 27, 1993Assignee: BASF AktiengesellschaftInventors: Richard Baur, Helmut Guembel, Alfred Oftring, Johannes Perner, Gerhard Wolf
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Patent number: 5191127Abstract: This invention provides glyoxal derivatives and a method for making these derivatives. A particularly useful derivative, 1-chloro-1,2,2-trialkoxyethane, and a facile method for making these alpha-halo ethers are provided. The alpha-halo ethers are valuable intermediates in the manufacture of a variety of commercial compounds.Type: GrantFiled: August 13, 1991Date of Patent: March 2, 1993Assignee: Loyola University of ChicagoInventor: James H. Babler
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Patent number: 5149843Abstract: Conjugated diene compounds of the general formula: ##STR1## which are industrially advantageous intermediates for preparing sarcophytol A useful as an anticarcinogenic promotor or antitumor agent are provided.Type: GrantFiled: June 7, 1991Date of Patent: September 22, 1992Assignee: Mitsubishi Kasei CorporationInventors: Hisao Takayanagi, Yasunori Kitano, Yasuhiro Morinaka
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Patent number: 5091597Abstract: Process of preparation of secondary or tertiary alcohols by the action of an organic halide on metallic manganese, in the presence of a carbonyl compound in a solvent followed by hydrolysis; a compound of a metal of Groups II to VIII of the Periodic Classification of the Elements, less electropositive than manganese, is present in the reaction medium.Type: GrantFiled: August 28, 1990Date of Patent: February 25, 1992Assignee: Societe Nationale Elf AquitaineInventors: Gerard Cahiez, Pierre-Yves Chavant, Pierre Tozzolino
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Patent number: 4898928Abstract: Water-soluble polyacetal or polyketal having the formula ##STR1## wherein R.sub.1, and R.sub.2 are aliphatic, cycloaliphatic or aromatic groups, for ketals; R.sub.1 is hydrogen and R.sub.2 is aliphatic, cycloaliphatic, or aromatic groups for acetals; R.sub.3 and R.sub.4 are also aliphatic, alkoxy, cycloaliphatic or aromatic groups X represents groups as (CH.sub.2).sub.n, O(CH.sub.2).sub.N O or ##STR2## that connect the pendant unsaturation to the aliphatic, cycloaliphatic or aromatic R.sup.4 groups, the ratio of a to b is 0.5 to 10, and n is 10-100.Type: GrantFiled: March 7, 1988Date of Patent: February 6, 1990Assignee: Sandoz Pharmaceuticals Corp.Inventors: Jorge Heller, Donald W. H. Penhale, Steve Y. Ng
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Patent number: 4827004Abstract: Novel Isoprene Derivatives which have mucosa-protective and gastric acid secretion-inhibiting properties and are useful for combatting ulcers both by treating and as a prophylaxis against gastric and/or duodenal ulcers.Type: GrantFiled: August 24, 1987Date of Patent: May 2, 1989Assignee: Hoffmann-La Roche Inc.Inventors: Albert Fischli, Max Schmid, Rudolf Schmid
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Patent number: 4616095Abstract: Described is an isomer-directed process for producing asymmetric ketones defined according to the generic structure: ##STR1## wherein one of Z.sub.1 or Z.sub.2 is the moiety: ##STR2## and the other of Z.sub.1 or Z.sub.2 is hydrogen; wherein R.sub.11 and R.sub.21 represent hydrogen or the same or different alkyl or alkenyl with the proviso that R.sub.11 and R.sub.21 are not both hydrogen or wherein R.sub.11 and R.sub.21 taken together:(i) complete a cycloalkyl, cycloalkenyl, bicycloalkyl, mono or polyalkyl cycloakyl or mono or polyalkyl cycloalkenyl ring, or(ii) represent alkylidene, cycloalkenyl alkylidene, aralkylidene, mono or polyalkyl cycloalkenyl alkylidene or mono or polyalkyl aralkylidene;and wherein R.sub.6, R.sub.7 and R.sub.Type: GrantFiled: August 13, 1985Date of Patent: October 7, 1986Assignee: International Flavors & Fragrances Inc.Inventors: Mark A. Sprecker, Robert P. Belko, William L. Schreiber, Michael Licciardello
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Patent number: 4613706Abstract: Described is an isomer-directed process for producing asymmetric ketones defined according to the generic structure: ##STR1## wherein one of Z.sub.1 or Z.sub.2 is the moiety: ##STR2## and the other of Z.sub.1 or Z.sub.2 is hydrogen; wherein R.sub.11 and R.sub.21 represent hydrogen or the same or different alkyl or alkenyl with the proviso that R.sub.11 and R.sub.21 are not both hydrogen or wherein R.sub.11 and R.sub.21 taken together:(i) complete a cycloalkyl, cycloalkenyl, bicycloalkyl, mono or polyalkyl cycloalkyl or mono or polyalkyl cycloalkenyl ring, or(ii) represent alkylidene, cycloalkenyl alkylidene, aralkylidene, mono or polyalkyl cycloalkenyl alkylidene or mono or polyalkyl aralkylidene;and wherein R.sub.6, R.sub.7 and R.sub.Type: GrantFiled: August 13, 1985Date of Patent: September 23, 1986Assignee: International Flavors & Fragrances Inc.Inventors: Mark A. Sprecker, Robert P. Belko, William L. Schreiber, Michael Licciardello
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Patent number: 4570018Abstract: A novel chemical, fluorochlorocyclopropane (I) of the following formula: ##STR1## is prepared by the addition of fluorochlorocarbene to the corresponding olefin (II) of the following formula:CH.sub.2 .dbd.CR.sup.1 -R.sup.2The compound is a useful intermediate for synthesizing some chemicals, e.g., some cephalosporins.(wherein R.sup.1 is hydrogen, halogen, 1 to 8C alkylamino, alkoxy, or alkylthio andR.sup.2 is halogen, 1 to 8C alkylamino, alkoxy, or alkylthio).Type: GrantFiled: May 16, 1984Date of Patent: February 11, 1986Assignee: Shionogi & Co., Ltd.Inventors: Tsutomu Aoki, Hiromi Takahashi, Toshiro Konoike, Teruji Tsuji, Wataru Nagata
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Patent number: 4513144Abstract: Trioxane and other acetals are purified by contacting with an alkali metal superoxide, then isolated in a purified form. Optionally, a phase transfer catalyst can be utilized in the purification. Recovered acetals are sufficiently pure for polymerization to high molecular weight.Type: GrantFiled: November 3, 1982Date of Patent: April 23, 1985Assignee: Conoco Inc.Inventor: Jeff T. Fenton
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Patent number: 4454330Abstract: A process for the preparation of a two-functional-group-containing terpenoid having the general formula: ##STR1## in which n is an integer of from 1 to 5, R represents a hydroxymethyl, formyl or carboxyl group, and A represents the hydrogen atom, or a 2-tetrahydropyranyl, benzyl, methoxymethol or methoxyethoxymethyl group comprising the oxidation with a microorganism belonging to the genus Nocardia. Some of the terpenoids are of value as anti-ulcer agents, while others are useful as intermediates.Type: GrantFiled: March 22, 1982Date of Patent: June 12, 1984Assignees: Eisai Co., Ltd., General Director of the Agency of Industrial Science and TechnologyInventors: Akio Sato, Kenji Nakajima, Yoshimasa Takahara, Shizumasa Kijima, Noriaki Kuwana, Shinya Abe, Kouzi Yamada
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Patent number: 4338251Abstract: A process for the preparation of a two-functional-group-containing terpenoid having the general formula: ##STR1## in which n is an integer of from 1 to 5, R represents a hydroxymethyl, formyl or carboxyl group, and A represents the hydrogen atom, or a 2-tetrahydropyranyl, benzyl, methoxymethol or methoxyethoxymethyl group comprising the oxidation with a microorganism belonging to the genus Nocardia. Some of the terpenoids are of value as anti-ulcer agents, while others are useful as intermediates.Type: GrantFiled: December 29, 1980Date of Patent: July 6, 1982Assignees: Eisai Co., Ltd., Agency of Industrial Science and TechnologyInventors: Akio Sato, Kenji Nakajima, Yoshimasa Takahara, Shizumasa Kijima, Noriaki Kuwana, Shinya Abe, Kouzi Yamada
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Patent number: 4317905Abstract: A process is disclosed for preparing aliphatic compounds containing two conjugated double bonds cis-cis or cis-trans, characterized in that a compound of the general formula ##STR1## (in which R is H, alkyl from C.sub.1 to C.sub.10, or OY in which Y is a protective group selected from the class consisting of tetrahydropyranyl and 1-ethoxyethyl; X is an ester function selected from the class consisting of the acetates) is reacted with an alkyl-magnesium halide of the general formula:Z--Mg--R.sup.1 (II)(in which Z is chlorine, bromine or iodine, and R.sup.1 is a C.sub.1 -C.sub.10 alkyl group, or a group (CH.sub.2).sub.n OY in which Y has the same meaning as in formula (I), and n is a number from 3 to 10) in the presence of Li.sub.2 CuCl.sub.4, CuCl, CuBr, or CuI at temperatures ranging from about -30.degree. to +10.degree. C. in the presence of ethyl ether or tetrahydrofuran as solvent, to obtain an aliphatic compound of the general formula:R--CH.sub.2 --C.tbd.C--CH.dbd.CH--CH.sub.2 R.sup.Type: GrantFiled: May 21, 1979Date of Patent: March 2, 1982Assignee: Montedison S.p.A.Inventors: Pietro Massardo, Giorgio Cassani, Paolo Piccardi
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Patent number: 4277610Abstract: A synthesis of 2,6,10-trimethyl-undecan-1-ol, an intermediate for producing vitamin E, from methacrolein, crotonaldehyde, .beta.-hydroxy-isobutyric acid including intermediates in this synthesis.Type: GrantFiled: May 12, 1978Date of Patent: July 7, 1981Assignee: Hoffmann-La Roche Inc.Inventors: Noal Cohen, Gabriel Saucy
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Patent number: 4277625Abstract: New process for the preparation of muscone, a valuable macrocyclic musky perfume ingredient. The process makes use of an .alpha.,.omega.-dialdehyde as starting material.Type: GrantFiled: November 20, 1979Date of Patent: July 7, 1981Assignee: Firmenich SAInventors: Karl-Heinrich Schulte-Elte, Arnold Hauser, Gunther Ohloff
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Patent number: 4267363Abstract: Synthesis and intermediates for making an insect pheromone useful in the control of the yellow scale.Type: GrantFiled: June 26, 1978Date of Patent: May 12, 1981Assignee: Zoecon CorporationInventors: Richard J. Anderson, Clive A. Henrick
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Patent number: 4180682Abstract: A synthesis of 2,6,10-trimethyl-undecan-1-ol, an intermediate for producing vitamin E, from methacrolein, crotonaldehyde, .beta.-hydroxy-isobutyric acid including intermediates in this synthesis.Type: GrantFiled: May 12, 1978Date of Patent: December 25, 1979Assignee: Hoffmann-La Roche Inc.Inventors: Noal Cohen, Gabriel Saucy
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Patent number: 4161616Abstract: This invention provides a process for producing 1,4-butanediol by (1) selectively hydrogenating acrolein to a product mixture of allyl alcohol and residual acrolein in a 2:1 ratio, (2) converting the product mixture to acrolein diallyl acetal under acidic conditions, (3) selectively hydroformylating the acrolein diallyl acetal to a trialdehyde, and (4) reacting the trialdehyde under substantially neutral hydrolysis/hydrogenation conditions to yield 1,4-butanediol.Acrolein is converted into tetrahydrofuran employing the process conditions described above, except that the step (4) hydrolysis/hydrogenation reaction is conducted under acidic conditions.Type: GrantFiled: April 24, 1978Date of Patent: July 17, 1979Assignee: Celanese CorporationInventors: Paul D. Taylor, Thomas H. Vanderspurt, Anthony B. Conciatori
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Patent number: 4159387Abstract: There are described new squaric acid esters, particularly mono-ortho esters, di-ortho esters, ortho ester anhydrides and ortho ester halides of squaric acid; a new process for producing these squaric acid esters; and a process for converting the squaric acid esters into squaric acid. It is possible by the new process to produce, with the use of readily obtainable starting products, the new squaric acid esters according to the invention in an economical manner and with good to very good yields; and the squaric acid esters can be converted under mild reaction conditions into squaric acid.Type: GrantFiled: November 23, 1977Date of Patent: June 26, 1979Assignee: Ciba-Geigy CorporationInventor: Daniel Bellus
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Patent number: 4158096Abstract: Synthesis and intermediates for making insect pheromone useful in the control of red scale, Aonidiella aurantii.Type: GrantFiled: March 13, 1978Date of Patent: June 12, 1979Assignee: Zoecon CorporationInventor: Richard J. Anderson
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Patent number: 4133836Abstract: A process for the manufacture of acetals by reacting aliphatic aldehydes with aliphatic alcohols, especially olefinically unsaturated aldehydes and allyl alcohols, in the presence of a distillable acid, especially nitric acid, using a rectifying column as the reaction vessel. The products may be used as starting materials for plastics, active substances, scents and vitamins.Type: GrantFiled: May 31, 1977Date of Patent: January 9, 1979Assignee: BASF AktiengesellschaftInventors: Axel Nissen, Gerd Kaibel
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Patent number: 4127612Abstract: 19-Hydroxy carbinol analogues of PGE.sub.1 having the structure ##STR1## are disclosed as bronchodilators. Methods of preparing the analogues are also disclosed.Type: GrantFiled: March 17, 1978Date of Patent: November 28, 1978Assignee: Miles Laboratories, Inc.Inventors: Harold C. Kluender, Warren D. Woessner