Patents for C07B 55 - Racemisation; Complete or partial inversion (688) |
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05/04/1988 | CN86107049A The manufacturing method of dl-lysene |
04/19/1988 | US4739071 Transesterification rearrangement |
02/02/1988 | US4723035 Using boron tribromide or aluminum tribromide with an azo compound |
01/27/1988 | CN87104772A Method for epimerizing an optically active benzylalcohol derivative |
01/20/1988 | EP0253592A1 A method for epimerizing an optically active benzylalcohol derivative |
01/20/1988 | EP0253571A1 Process for resolution and race mization of amines with acidic alpha-hydrogens |
01/19/1988 | US4720558 Process for inverting the configuration of secondary alcohols |
01/12/1988 | CA1231349A1 Process for the racemization of optically active aminoacids |
01/07/1988 | EP0251058A2 Process for the racemization of optically active phenoxy-propionic acid esters and their derivatives |
09/09/1987 | EP0235940A1 Method for racemization of chrysanthemic acid or its ester |
07/21/1987 | US4681969 Process for the preparation of an enantiomeric pair of isomers of cyfluthrin |
06/24/1987 | EP0226043A1 Process for the preparation of enantiomers |
06/02/1987 | US4670464 Epimerization of isomers of alpa-cyano-4-fluoro-3-penoxybenzyl 3-(z-2-chloro-3,3,3-trifluoropropen-1-yl)-2,2-dimethyl cyclopropane carboxylate |
05/06/1987 | EP0220907A2 Process for the preparation of 1,6-dichloro-1,6-dideoxy-beta-D-fructofuranosyl-4-chloro-4-deoxy-alpha-galactopyranoside |
04/01/1987 | EP0216196A2 Racemization of optically active compounds having a bromine substituted chiral carbon atom |
03/18/1987 | EP0214572A2 Racemization of optically active compounds having a chlorine substituted chiral carbon atom |
03/03/1987 | US4647692 Racemization and resolution of α-amino acids |
01/20/1987 | US4638086 Benzoic or phenylacetic acid or derivatives |
01/17/1987 | CN85101840A Processes and intermediates for making 16-phenoxy-and 16-substituted phenoxy-prostatrienoic acid derivatives and their stereoisomers |
12/30/1986 | EP0206993A1 Sulphonic-acid esters |
12/30/1986 | EP0206436A2 Enzymatic production of optical isomers of 2-halopropionic acids |
12/23/1986 | CA1215717A1 Process for converting a stereoisomeric ester into its diastereoisomer |
10/29/1986 | EP0199407A1 Process for racemizing an optically active N-benzylidene amino-acid amide |
10/29/1986 | EP0102520B1 Process for the inversion of the configuration of optically active compounds, and optically active intermediates for this process |
10/15/1986 | EP0197375A1 Process for the inversion of the configuration of secondary alcohols |
09/23/1986 | US4613690 Racemization of optically active compounds having a bromine substituted chiral carbon atom |
09/23/1986 | US4613689 Racemization of optically active compounds having a chlorine substituted chiral carbon atom |
09/03/1986 | EP0193405A1 Racemization process |
08/26/1986 | US4608442 Process for preparing 4-hydroxy-2-cyclopentenones |
07/22/1986 | US4602096 Acetic anhydride |
07/22/1986 | US4601987 Lipase catalyed assymetric esterification |
07/15/1986 | US4600785 Processes and intermediates for making 16-phenoxy and 16-substituted phenoxy-prostatrienoic acid derivatives |
05/06/1986 | US4587357 Preparation of enantiomers of a substituted fluorenyloxyacetic acid |
04/09/1986 | EP0176947A1 Preparation of enantiomers of a substituted fluorenyloxyacetic acid |
04/02/1986 | EP0175840A2 Racemisation process of N-acetyl-D(L)-alpha-amino-carboxylic-acids |
03/19/1986 | EP0174739A1 Process for obtaining an insecticidal product and composites thereof |
03/12/1986 | EP0173921A1 Process for the racemization of an alpha-amino acid |
02/19/1986 | EP0171894A1 Insecticidal enantiomeric pair of a phenoxybenzyl cyclopropanecarboxylate derivative, and process for its preparation |
07/03/1985 | EP0146935A2 Processes and intermediates for making 16-phenoxy- and 16-substituted phenoxy- prostatrienoic acid derivatives and their stereoisomers |
04/17/1985 | EP0137371A2 Process for the racemisation of optically active aminoacids |
03/20/1985 | EP0134303A1 Menthyl 2,2-dimethylcyclopropanecarboxylate and resolution of the same |
02/20/1985 | EP0133251A2 Process for preparing 4-hydroxy-2-cyclopentenones |
12/11/1984 | US4487956 Intemediates for insecticides enzyme inhibitors |
11/27/1984 | US4485257 Treatment with a lewis acid; insesticidal use |
10/23/1984 | CA1176640A1 PROCESS FOR RACEMIZING OPTICALLY ACTIVE .alpha.-AMINO ACIDS OR A SALT THEREOF |
07/31/1984 | US4463188 Heating the acid halide derivative |
03/14/1984 | EP0102520A1 Process for the inversion of the configuration of optically active compounds, and optically active intermediates for this process |
02/28/1984 | US4434107 Process for preparing an optically active p-hydroxyphenylglycine or a salt thereof |
10/25/1983 | US4411836 Heating in presence of fatty or aromatic acid salt or tertiary amine |
10/19/1983 | EP0091753A1 Method for racemization of optically active 2,2-dimethylcyclopropane-1-carboxylic acid halide |
09/21/1983 | EP0088998A1 Process for racemising optically active S-(carboxy-methyl) cysteine |
08/30/1983 | US4401820 Process for racemizing optically active α-amino acids or a salt thereof |
07/05/1983 | US4391980 For inversion of configuration of optically active compounds |
01/19/1983 | EP0070114A1 A process for preparing an optically active p-hydroxyphenyl-glycine or a salt thereof |
10/06/1982 | EP0061880A1 Process for preparing racemized cyclopropanecarboxylic acids |
09/28/1982 | CA1132560A1 Process for inverting the configuration in optically active compounds and new optically active intermediates required therefor and the salts thereof |
08/24/1982 | CA1130311A1 PROCESS FOR THE TRANSFORMATION OF AN ESTER OF CHIRAL ACID AND OF AN OPTICALLY ACTIVE .alpha.-CYANATED SECONDARY ALCOHOL OF (R) STRUCTURE TO AN ESTER OF CHIRAL ACID AND OF AN .ALPHA.-CYANATED SECONDARY ALCOHOL OF (S) STRUCTURE |
08/04/1982 | EP0057092A1 Process for racemizing an optically active alpha-amino acid or a salt thereof |
01/26/1982 | CA1117142A1 Process for the racemisation of optically active n-acyl-amino acids in aqueous solution |
10/13/1981 | US4294966 Salt formation |
09/15/1981 | CA1109079A1 Process for the preparation of dl-phenyl-glycine amide |
03/10/1981 | CA1097369A1 No translation available |
02/24/1981 | US4252744 Method of racemizing optically active 1-phenylethylamine |
01/20/1981 | US4246424 Method for racemization of optically active amines |
01/13/1981 | US4245116 Racemization of optically active 2-(4-chlorophenyl)-3-methylbutyric acid |
12/02/1980 | US4237313 Heating to 150c |
06/03/1980 | CA1078864A1 Process for the conversion of an ester of a chiral acid and of an optically active .alpha.-cyanated secondary alcohol to an ester of a chiral acid and of a racemic .alpha.-cyanated secondary alcohol |
02/06/1980 | EP0007605A1 A process for inverting the configuration in optically active compounds and optically active intermediate compounds and their salts required therefor |
01/09/1980 | EP0006284A1 Racemizing of optically active alpha-substituted-alpha-phenylacetic acids |
01/08/1980 | US4182906 Racemization of optically active 2,2-dimethyl-3-(1'-alkenyl)-cyclopropane-1-carboxylic acids |
01/08/1980 | US4182904 Method of racemizing optically active N-acyl amino acids in aqueous solution |
01/08/1980 | CA1069535A1 Process of racemizing an optically active phenyl glycine amide with or without a substituted phenyl group |
06/13/1979 | EP0002297A2 Process for the preparation of DL-phenyl-glycine amide |
06/13/1979 | EP0002289A1 Process for converting a stereoisomeric ester into its diastereoisomer; crystalline (-)-S-alpha-cyano-3-phenoxybenzyl (+)-S-alpha-isopropyl-4-chlorophenylacetate |
06/12/1979 | US4158016 Method for racemization of optically active amines |
04/24/1979 | US4151195 Novel racemization process |
04/03/1979 | CA1051889A1 Resolution/racemization of aminolactam compounds |
01/23/1979 | US4136195 Insecticidal cyclopropane carboxylates |
01/09/1979 | US4133826 Reaction of optically active or racemic mixture of esters with base |
12/05/1978 | US4128584 Hydrolysis |
11/21/1978 | CA1042917A1 Method for racemization of optically active amines |
09/12/1978 | CA1038406A1 Process for recovering phenylalkylamines |
09/05/1978 | US4111994 Acid hydrolysis |
09/05/1978 | US4111993 Slat formation with formic acid, hydrolysis |
06/20/1978 | US4096186 Process for racemizing optically active amino compounds |
01/04/1977 | US4001334 Reaction with hydroxylamine followed by hydrolysis |
11/02/1976 | US3989750 Lewis acid |
03/02/1976 | US3941776 Racemization of aminolactam compounds |