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Class 568/658 - Acyclic hydrocarbyl group bonded directly to the benzene ring


Subclass of Class 568 - Organic compounds -- part of the class 532-570 series
Definition: Compounds which contain an acyclic substituent of hydrogen
No. of patents: 69
Last issue date: 06/12/2007


1    
NumberTitleIssue Date
7230141Method for producing toluol derivatives
A process for preparing toluene derivatives of the formula I, where R1, R2 and R3 independently of one another are hydrogen, halogen, C1–C6-alkyl, hydroxyl...
06/12/2007
7105707Process for preparing alkynyl-substituted aromatic and heterocyclic compounds
Mono- and disubstituted aryl or heterocyclic acetylenes are produced by a process comprising reacting an aryl nitrile with an alkynylzinc compound, a bis-alkynylzinc compound, or an alkynylmagnesium compound, in the presence of a nickel/phosphine catalyst. ...
09/12/2006
6992226Single-stage method for producing toluene derivatives
A process for preparing toluene derivatives of the formula I where R1, R2 and R3 are, independently of one another, hydrogen, alkyl radicals, hydroxyl groups and/or alkoxy groups, compri...
01/31/2006
6881868Process for the preparation of (R)-2-alkyl-3-phenyl-1-propanols
Compounds of formula (I), wherein R1 and R2 are, independently of one another, H,C1-C6alkyl, C1-C6halogenalkyl, C1-C6alkoxyl, C1-C6alkoxy-C1-C
04/19/2005
6821308Polyoxyalkylene monoethers with reduced water affinity
Oleophilic polyoxyalkylene monoethers having reduced water affinity are disclosed. The monoethers have a hydrocarbyl residue, a polyoxyalkylene moiety, and a hydroxyl end group. The monoethers contain less than about 6 mole percent of alkoxylated unsaturates, and pr...
11/23/2004
6624334Method for production of aryl alkyl ethers
Aryl alkyl ethers can be produced by the reaction of hydroxyaromatics with an alcohol in the presence of a catalyst. This process achieves higher yields of aryl alkyl ethers and the formation of ring-alkylated products and dialkyl ethers is markedly reduc...
09/23/2003
6479709Process for the production of styrene derivative
A process for the production of a styrene derivative is provided. The process comprises reacting a Grignard reagent prepared from an aromatic halogen compound with a vinyl halide in the presence of a catalyst, wherein the catalyst is at least one member s...
11/12/2002
6472567Process for the production of styrene compound, and styrene compound free from biphenyl
A process for the production of a styrene compound is provided. The process comprises reacting a Grignard reagent prepared from a tertiary butoxyphenyl halide with a vinyl halide in the presence of a catalyst, wherein the catalyst is at least one member s...
10/29/2002
6274635Alkylated resorcinol derivatives for the treatment of immune diseases
The present invention provides a method, compounds, and compositions for treating a disease associated with immune dysfunction. In accordance with the method, a pharmacologically-acceptable composition including at least one compound selected from the gro...
08/14/2001
6184381Process for preparing optically active compounds
This document describes a novel and practically excellent process for the preparation of optically active compounds, such as optically active alcohols or amines which are useful for various applications, for example, as synthetic intermediates of pharmace...
02/06/2001
6063940Process for preparing 1-bromoalkylbenzene derivatives and intermediates thereof
A 1-bromoalkylbenzene derivative is prepared by reacting a phenylalkene derivative with hydrogen bromide in the presence of a non-polar solvent. The phenylalkene derivative is prepared by reacting an alkenyl halide with metal magnesium to form a Grignard ...
05/16/2000
5986137Allylation reagent and process for allylating a nucleophile
A process and reagent for allylating a nucleophile preferably of formula (V). (R)n Ar--Y--H (V) The nucleophile is reacted with a reagent containing an allyl derivative and a catalyst in an aqueous phase conta...
11/16/1999
5817886Process for production of alkyl ether of phenol and catalyst used therein
The present invention provides a process for producing an alkyl ether of a phenol from a phenol and an alcohol at a selectivity and a yield higher than in conventional processes, stably over a long period of time. The process is characterized by alkyl-eth...
10/06/1998
5635108Liquid crystalline compound having conjugated carbon chain and liquid crystal composition containing
A hexynediene derivative expressed by the following general formula I and liquid crystal compositions containing the derivative are disclosed: ##STR1## wherein R1 and R2 independently represent an alkyl group or alkoxy group eac...
06/03/1997
5610133Alkyl-substituted-C1 -C3 alkoxy-C6 -cycloaliphatic compounds, organoleptic uses thereof and processes for preparing same
Described are compounds defined according to the structure: ##STR1## wherein Z represents meta or para cyclohexylene or meta or para phenylene and wherein R1 and R2 are the same or different methyl or hydrogen; and wherein R
03/11/1997
5583264Para-c5 alky-substituted ethoxycyclohexanes, organoleptic uses thereof and processes for preparing same
Described are compounds defined according to the structure: ##STR1## wherein Z represents para cyclohexylene or para phenylene and wherein R1, R2 and R3 are the same or different methyl or hydrogen; and wherein R...
12/10/1996
5536870Process for preparing olefins
A process for preparing olefin compounds of the formula ##STR1## where A is aryl, substituted aryl, heteroaryl, substituted heteroaryl, benzyl, substituted benzyl, vinyl or substituted vinyl and R2, R3 and R4 are hydr...
07/16/1996
5510541Process for the telomerization of conjugated dienes and suitable catalyst therefor
Mono-alkadienyl alkyl ethers and di-alkadienyl alkyl ethers are prepared by telomerization of a conjugated diene, by causing said conjugated diene to react with an aliphatic alcohol or an aliphatic diol respectively, by operating in an aqueous/organic bip...
04/23/1996
5502031Methyl substituted propyl-substituted pentamethyl indane derivatives processes for producing same and perfumery uses thereof
Described are methyl, substituted propyl-substituted pentamethyl indane derivatives defined according to the structure: ##STR1## wherein R1 represents chloro, hydroxyl or OR6 ; and R5 represents methyl or hydrogen wit...
03/26/1996
54629231-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes and mixtures thereof with bicyclopentadiene derivatives, uses of same in perfumery and methods for preparing same
Described are 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes and mixtures thereof with bicyclopentadiene derivatives, wherein the 1-oxo-substituted and unsubstituted isobutyl-4-ethoxy-benzenes are defined according to the structure: #...
10/31/1995
5422417Substituted phenyl compounds and processes for preparing the same
Substituted phenyl compounds endowed with chain extension activity for formulations such as polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 1-1000 and m is 1-100; and R1 and R2 are each ...
06/06/1995
5387718Method of manufacturing alkylphenyl alkyl ethers or alkylphenyl alkyl thioethers
Alkylphenyl alkyl ethers or alkylphenyl alkyl thioethers, of the formula ##STR1## where U represents O or S; and R1 -R6 each independently represent an alkyl or aryl group with 1-6 C atoms, but R1 -R5 may e...
02/07/1995
5346983Substituted phenyl compounds and processes for preparing the same
Substituted phenyl compounds endowed with chain extension activity for formulations such as polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 1-1000; R1 .dbd.R2, and R1 and R2...
09/13/1994
5344997Alkylation of aromatics using a fluorided silica-alumina catalyst
A fluorided silica-alumina catalyst, particularly one with a silica:alumina ratio in the range of 1:1-9:1 containing from 1 to 6 weight percent fluoride, is particularly effective in the liquid phase alkylation of benzene by linear olefins to produce line...
09/06/1994
5321167Method of manufacturing nonionic surfactants low in alkylene oxides and low in 1,4-dioxane, using alkali metal alkoxides as catalysts
An alkoxidation production low in alkylene oxide and 1,4-dioxane content is prepared by reacting an alkylphenol or fatty alcohol with an alkylene oxide in the presence of an alkali fatty alkoxide obtained by direct reaction of an alkali hydroxide with a f...
06/14/1994
5302732Use of ultra-low sodium silica-aluminas in the alkylation of aromatics
Silica-aluminas having a sodium content less than about 0.1 weight percent show increased stability when used as a catalyst for the alkylation of aromatic compounds. Where such silica-aluminas are used as the catalyst in detergent alkylation their increas...
04/12/1994
5130435Preparation of vinyl ethers
Vinyl ethers of the formula ##STR1## wherein R1, R2 and R3 are identical to or different from one another, each being hydrogen, straight-chain or branched alkyl or alkenyl of up to 12 carbon atoms, cycloalkyl or cyclo...
07/14/1992
4960884Pesticidal 2-fluoroethyl ethers
Pesticidal mono-, di-, and tri-2-fluoroethyl ethers of the formula R1 R2m Ar(OCH2 CH2 F)n, compositions thereof and their insecticidal, acaricidal and nematicidal uses are described and cla...
10/02/1990
4918242Novel optically 1,3-phenoxypropylhalides
A process for producing the optically pure (+)- or (-)-isomer of a phenyl- or substituted-phenylalkanolamine compounds having pharmacologic activity without the need for resolution processes and novel intermediates useful in the process including opticall...
04/17/1990
4902850Purification of anethole by crystallization
A method of purification for anethole which involves forming an aqueous emulsion of crude anethole and crystallizing anethole from the emulsion. The process provides a purified anethole having improved odor and taste....
02/20/1990
4898993Process for preparing 2-tert-butyl-4-methoxyphenol
A process is described which permits to prepare substantially pure 2-tert-butyl-4-methoxyphenol, by reacting 4-bromo-2-tert-butylphenol with a methoxide in an organic solvent. The process permits to obtain a substantially pure 2-isomer, and avoids the nee...
02/06/1990
4846998Cyclohexane derivatives
Cyclohexane derivatives of the formula I in which R1 and R2 are each an alkyl group having 1-10 C atoms, in which one or two non-adjacent CH2 groups can also be replaced by O atoms and/or --CO-- groups and/or --CO--O-- groups a...
07/11/1989
4814519Production of ethers from olefins
A process for the production of ethers from an olefin containing feedstock. The process includes two-stages for the production of ethers which comprises, in a first stage, isomerizing an olefin containing feedstock over a thermally stable layered metal ox...
03/21/1989
47570512-tert-butyl-4-methylcyclohexanol derivatives, their preparation and their use as scents
Novel 2-tert-butyl-4-methylcyclohexanol derivatives of the general formula I ##STR1## where R1 is alkyl of 1 to 3 carbon atoms or an acyl group ##STR2## where R2 is alkyl of 1 to 5 carbon atoms, and a process for their ...
07/12/1988
4710316Aldehydes, acetals, alcohols and ethers having 3-methyl- or 3,5-dimethyl-benzyl groups, their manufacture and perfume materials containing same
Compounds of the general formula (I) ##STR1## and compounds of the general formula (II) ##STR2## in which R1 represents --OH, --CH2 OH, --CH2 --OCH3, --CHOH--CH3, --CHO or --CH(OCH3
12/01/1987
4704481Process for the desulphurization of mercaptans
Benzylic and aromatic mercaptans are desulphurized by contacting the mercaptan with carbon monoxide at elevated temperatures in the presence of an aqueous hydrocarbon and a cobalt carbonyl catalyst....
11/03/1987
4700005Preparation of phenolic ethers
Phenolic ethers are produced by reacting a phenol with a compound selected from an alkyl halide, an aryl halide, a dialkyl sulphate and a diaryl sulphate in the presence as catalyst of an amidine....
10/13/1987
4675454Catalytic etherification of phenols to alkyl aryl ethers
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 Gro...
06/23/1987
4675455Catalytic etherification of phenols to alkyl aryl ethers
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 Gro...
06/23/1987
4675456Catalytic etherification of phenols to alkyl aryl ethers
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 lan...
06/23/1987
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