Abstract: Described is a liquid mixture of a tricyclic isochroman derivatives and acetyl tetrahydronaphthalene derivatives wherein the acetylated tetrahydronaphthalene derivative mixture consists essentially of the compound having the structure: ##STR1## with minor amounts of compounds having the structures: ##STR2## and uses of such mixtures of tricyclic isochroman derivative mixtures and acetyl tetrahydronaphthalene derivative mixtures in augmenting or enhancing the aroma of perfume compositions, colognes and perfumed articles including but not limited to solid or liquid anionic, cationic, nonionic or zwitterionic detergents, fabric softener compositions, fabric softener articles, hair preparations, cosmetic powders and perfumed polymers.
Abstract: This invention relates to the isomerization of monoaryl-ethylene oxide in the presence of water over a silica gel catalyst. Reaction temperatures are relatively low, i.e., 160.degree. C. to about 180.degree. C.
Abstract: Substituted styrenes are prepared by treatment on N-acyl-B-phenethylamines with bases and removal by distillation of the styrene which is formed during the reaction.
Abstract: Block-copolymeric polyglycol ethers of long-chain 1,2-epoxides and ethylene oxide corresponding to the following general formulaR.sup.1 O[C.sub.n H.sub.2n O].sub.x [C.sub.2 H.sub.4 O].sub.x.y --R.sup.2in which one of the groups R.sup.1 or R.sup.2 is an alkyl or alkoxyalkyl group containing from 1 to 22 carbon atoms and the other is hydrogen, n is a number of from 6 to 22, x is a number of from 2 to 20 and y is a number of from 1 to 100, are useful as solution promoters for the preparation of clear, stable, aqueous or aqueous-alcoholic preparations containing oil-soluble perfume oils. Preferably, R.sup.1 is an alkyl group, for example a methyl group, and R.sup.2 is hydrogen.
Type:
Grant
Filed:
May 13, 1985
Date of Patent:
March 17, 1987
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Ludwig Schieferstein, Ulrich Zeidler, Hermann Hensen
Abstract: A method is provided for reducing the reflux temperatures of methylene chloride in phosgenation reactions by introducing a second inert vaporizable component to the reaction medium. This second inert vaporizable component has a lower vaporization temperature than the methylene chloride so as to reduce the temperature of vaporization of the mixture. More efficient use of phosgene is obtained when polymerizing aromatic dihydroxy compounds to polycarbonates and higher yields of monomeric and dimeric bischloroformates are obtained.
Type:
Grant
Filed:
September 23, 1985
Date of Patent:
March 10, 1987
Assignee:
General Electric Company
Inventors:
Philip G. Kosky, James M. Silva, Daniel J. Brunelle, Thomas G. Shannon
Abstract: 2-benzyl-1-alkanol polyglycol ethers having the formula: ##STR1## in which R.sup.1 is a C.sub.6 to C.sub.22 alkyl group; R.sup.2 is a C.sub.2 -C.sub.6 alkylene group; and n is an integer from 1 to about 100.The products are produced by heating a mixture of a ratio of an alcohol having the formula:R.sup.1 --CH.sub.2 --CH.sub.2 OHwherein the symbol R.sup.1 has the same meaning as above with a ratio of from about 1 mole to about 10 moles, preferably 1 to 3 moles, of benzyl alcohol to a temperature of from about 180.degree. C. to 250.degree. C. in the presence of an alkali metal compound, and optionally a hydrogenation catalyst; separating the excess benzyl alcohol from the mixture and alkoxylating the alcohol thus obtained.The polyglycol ether are used as wetting agents, dispersants, emulsifiers and detergents.
Type:
Grant
Filed:
May 29, 1986
Date of Patent:
March 10, 1987
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Horst-Jurgen Krause, Andreas Syldatk, Eric Sung
Abstract: A process for the production of a dialkyl carbonate, e.g. dimethyl carbonate, or a dialkyl oxalate, e.g. dimethyl oxalate, from butane, oxygen, carbon monoxide and an alcohol is provided in a series of integrated process steps. In the case of a dialkyl oxalate, the product can be hydrogenated further to produce an ether of ethylene glycol.
Abstract: A continuous process for the production of 3-cyclohexene-1-carboxaldehyde by reaction of acrolein with butadiene at an elevated temperature and increased pressure is described in which good yields are obtained by establishing the weight ratio of the starting substances fed per time unit into a circulation reactor in relation to the reaction mixture circulated per time unit in the range of 1:5 to 1:60 and by carrying out a secondary reaction in successive reactors.
Type:
Grant
Filed:
December 27, 1985
Date of Patent:
February 10, 1987
Assignee:
Degussa Aktiengesellschaft
Inventors:
Guenter Prescher, Andreas Grund, Heinrich Petsch, Georg Boehme
Abstract: The present invention comprises certain aromatic and inter-oxa analogs of the prostaglandins in which the C-1 carboxyl is replaced by a primary alcohol. These prostaglandin F.alpha. analogs exhibit prostaglandin F.alpha. activity and are accordingly useful for the same pharmacological purposes as the corresponding prostaglandins.
Abstract: A method for making 4,4'-dihydroxydiphenyl ether from diphenyl ether by oxidatively iodinating diphenyl ether to 4,4'-diiododiphenyl ether and/or 4-hydroxy-4'-iododiphenyl ether, hydrolyzing this product with a base, recovering iodine from the solution containing iodide, and recycling the iodine to the iodination step.
Abstract: A process for etherifying phenols comprising reacting phenols at elevated temperature and pressure with a reactant selected from the group consisting of alcohol, ether and mixtures thereof in the presence of a catalyst comprising a sulfated oxide of a Group IIB metal selected from the group consisting of Zn, Cd, Hg and mixtures thereof on a support.
Abstract: An organic carbonate such as dimethyl carbonate is prepared by reacting an alcohol such as methanol with carbon monoxide oxygen in the presence of a catalyst system containing Cu(OMe)Cl as a catalyst and a phosphoramide as an additive for the catalyst system.
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.
Abstract: Chloroformate compositions, particularly bischloroformate compositions, are prepared by the reaction of phosgene with a hydroxy compound, preferably a dihydroxy compound such as bisphenol A, in a heterogeneous mixture, while adding a hydrogen chloride scavenger comprising aqueous base as necessary and maintaining a pH of 0.5-8 during the phosgene addition. When a polyhydroxy compound is employed and the temperature is above 30.degree. C., the phosgene addition rate is maintained at a level high enough to effect rapid and complete reaction with dissolved hydroxy compound. This method uses substantially less phosgene than methods involving a higher pH.
Type:
Grant
Filed:
October 24, 1985
Date of Patent:
January 20, 1987
Assignee:
General Electric Company
Inventors:
Daniel J. Brunelle, Thomas G. Shannon, Niles R. Rosenquist
Abstract: An organic carbonate such as dimethyl carbonate is prepared by reacting an alcohol such as methanol with carbon monoxide and oxygen in the presence of a catalyst system containing Cu(OMe)Cl as catalyst and a cyclic amide as an additive or cosolvent for the catalyst system.
Type:
Grant
Filed:
September 30, 1985
Date of Patent:
January 13, 1987
Assignee:
Texaco Inc.
Inventors:
Ajit K. Bhattacharya, John T. Nolan, Jr.
Abstract: Described are oxobicyclononane derivatives and mixtures of same having the generic structure: ##STR1## wherein X, Y, X' and Y' each represents the moiety having one of the structures: ##STR2## wherein one of the dashed lines represents a carbon-carbon single bond and the other of the dashed lines represents a carbon-carbon double bond with the proviso that when X' and Y' are each the moiety: ##STR3## then the dashed line at the "2-3" position is a carbon-carbon double bond and the dashed line at the "6-7" position is a carbon-carbon single bond and one of X or Y has the structure: ##STR4## and the other of X or Y has the structure: ##STR5## and with the further proviso that when X and Y are the moieties: ##STR6## then the dashed line at the "6-7" position is a carbon-carbon double bond and the dashed line at the "2-3" position is a carbon-carbon single bond and one of X' or Y' has the structure: ##STR7## and the other of X' or Y' has the structure: ##STR8## and wherein R represents hydrogen, C.sub.1 -C.sub.
Abstract: 2,6-dialkyl substituted phenols such as 2,6-ditertiary butylphenol are reacted with formaldehyde in methyl alcohol in the presence of an inert gas and a tertiary amine catalyst to produce a bis(3,5-di-t-butyl-4-hydroxybenzyl)ether; and the bis ether subjected to hydrogenolysis in the presence of a catalyst, a solvent and an amine to prepare a trisubstituted phenol such as 2,6-di-t-butyl-4-methyl-phenol.
Abstract: Methyl N-methylanthranilate is prepared by reductive alkylation of methylanthranilate with formaldehyde and hydrogen in the presence of a hydrogenation catalyst and an acid catalyst.
Abstract: A process for the preparation of a benzylidene compound of the formula ##STR1## in which R.sup.1 is hydrogen or one or two substituents independently selected from the group consisting of nitro, cyano, halogen, SO.sub.3 H, alkyl, alkoxy and fluorinated alkyl, each with 1 to 4 C atoms and two or three fluorine substituents, andR.sup.3 is alkyl with 1 to 10 C atoms, which is optionally interrupted by an oxygen in the chain or is optionally substituted by fluorine, chlorine, hydroxyl or a methylbenzylamine group, comprising reacting an acetal of the formula ##STR2## in which R.sup.2 each independently is alkyl with 1 to 6 C atoms, which is optionally substituted by phenyl, or the two radicals R.sup.2 conjointly form an alkylene radical with 1-6 C atoms,with a .beta.-ketocarboxylic acid ester of the formulaCH.sub.3 CO--CH.sub.2 --COOR.sup.3in the presence of an acid at a temperature between about 40.degree. and 120.degree..
Abstract: The invention relates to 1,1-dimethoxy-2,5-dimethyl-2-vinyl-4-hexene, 1,1-dimethoxy-2,2,5-trimethyl-4-hexene, and 1,1-dimethoxy-2,2-dimethyl-3-phenyl-propane. The invention also relates to the production of these compounds and their use as fragrant substances in the cosmetics, detergent and perfume industries.