Patents
Patents for C07B 57 - Separation of optically-active organic compounds (3,737)
06/1979
06/12/1979CA1056388A1 Resolution of racemic pantolactone
04/1979
04/24/1979US4151198 Resolution of N-acyl-DL (+)-phenylalanines
04/03/1979CA1051889A1 Resolution/racemization of aminolactam compounds
03/1979
03/21/1979EP0001060A1 Process for preparing optically active unsubstituted or substituted 2-amino-2-phenyl-acetic acids
02/1979
02/21/1979EP0000745A1 Salt of an optically active isomer of phenylglycine and an optically active isomer of 2-amino butanol and process for its preparation
02/07/1979EP0000518A1 Process for the chemical resolution of racemic mandelic acid
01/1979
01/23/1979US4136195 Insecticidal cyclopropane carboxylates
01/09/1979US4133826 Reaction of optically active or racemic mixture of esters with base
12/1978
12/05/1978US4128584 Hydrolysis
11/1978
11/21/1978CA1042902A1 Process for producing d-penicillamine
10/1978
10/31/1978CA1041544A1 Optically active 2,3-cis-1,2,3,4-tetrahydro-5-(2-hydroxy-3-(tertbutylamino)-propoxy)-2,3-naphthalenediols
10/10/1978CA1040205A1 Process for the racemate splitting of d,l-penicillamine
09/1978
09/19/1978US4115439 Dissolving an a-phenylglycine sulfonate in sulfuric acid solution, crystallization
09/05/1978US4111994 Acid hydrolysis
08/1978
08/15/1978US4107203 Optical resolution of DL-α-phenylglycine hydrochloride
06/1978
06/06/1978US4093653 Process for the preparation of optically active phenyl glycine amide
03/1978
03/07/1978US4077988 Optically active anthracyclinones
02/1978
02/07/1978US4072698 Optically active acids with ketone or aldehyde catalyst
10/1977
10/11/1977US4053511 Nopinylamines
07/1977
07/19/1977US4036852 Optical resolution of phenyl-glycine amide
04/1977
04/05/1977US4016205 Process for the optical resolution of DL-2-(4-hydroxyphenyl)glycine
01/1977
01/25/1977US4005088 Process for the chemical separation of racemic modifications of α-aminocarboxylic acid derivatives, and cinchonidine salt intermediates
01/11/1977US4002666 Salt formation with phenylethylamine, decomposition, hydrolysis
12/1976
12/07/1976US3996246 3-aminomethyl-pinane as resolving agent
11/1976
11/30/1976US3994968 2-(5'-Halo-6'-methoxynaphth-2'-yl)-acrylic acid
10/1976
10/26/1976US3988365 By salt formation with cinchonidine and a 1a metal hydroxide or carbonate
09/1976
09/14/1976US3980698 Alpha-phenyl-beta-(lower alkylphenyl)ethylamine
09/14/1976US3980666 Process for the resolution of D,L-penicillamine and salts formed during said process
08/1976
08/24/1976US3976680 Production of an ester of one enantiomer of an α-amino acid in the form of a salt with an optically active acid
06/1976
06/01/1976US3960957 2-(6'-methoxynaphth-2'yl) propionaldoxime and 5'-halo derivatives thereof
05/1976
05/04/1976US3954783 Resolution process and salt of protected D-penicillamine and L-pseudonorephedrine
03/1976
03/02/1976US3941831 Resolution of alkyl esters of DL-phenylalanine
03/02/1976US3941814 Process for obtaining D(-)-and L(+)-α-azidophenylacetic acid
03/02/1976US3941776 Racemization of aminolactam compounds
01/1976
01/20/1976US3933902 Method for the optical resolution of DL-αphenylglycine
01/13/1976US3932491 Addition of a seed-suppressing substance
01/06/1976US3931214 Antihypotonic, diuretic, antiphlogistic
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