[EN] RUTHENIUM COMPLEX AND METHOD FOR PREPARING OPTICALLY ACTIVE ALCOHOL COMPOUND<br/>[FR] COMPLEXE DE RUTHÉNIUM ET PROCÉDÉ POUR PRÉPARER UN COMPOSÉ ALCOOLIQUE OPTIQUEMENT ACTIF
申请人:TAKASAGO PERFUMERY CO LTD
公开号:WO2011135753A1
公开(公告)日:2011-11-03
The present invention provides a novel ruthenium complex which has an excellent catalytic activity in terms of reactivity for asymmetric reduction of a carbonyl compound and enantioselectivity, a catalyst using the ruthenium complex, and a method for preparing optically active alcohol compounds using the ruthenium complex. The present invention relates to a ruthenium complex having ruthenacycle structure, a catalyst for asymmetric reduction consisting of the ruthenium complex, and a method for preparing optically active alcohol using the ruthenium complex.
[EN] BIARYL DIPHOSPHINE LIGANDS, INTERMEDIATES OF THE SAME AND THEIR USE IN ASYMMETRIC CATALYSIS<br/>[FR] LIGANDS BIARYLES DIPHOSPHINES, INTERMÉDIAIRES ET UTILISATION DANS LA CATALYSE ASYMÉTRIQUE
申请人:KANATA CHEMICAL TECHNOLOGIES INC
公开号:WO2012031358A1
公开(公告)日:2012-03-15
The present disclosure relates to biaryl diphosphine ligands of the formula (B), processes for the production of the ligands and the use of the ligands in metal catalysts for asymmetric synthesis. The disclosure also relates to intermediates used for the production of the biaryl diphosphine ligand. (Formula (B))
[DE] 3-METHYLAMINO-1-(2-THIENYL)-1-PROPANON, SEINE HERSTELLUNG UND VERWENDUNG<br/>[EN] 3-METHYLAMINO-1-(2-THIENYL)-1-PROPANONE, PRODUCTION AND USE THEREOF<br/>[FR] 3-METHYLAMINO-1-(2-THIENYLE)-1-PROPANONE, SA PRODUCTION ET SON UTILISATION
申请人:BASF AG
公开号:WO2004065376A1
公开(公告)日:2004-08-05
Die vorliegende Erfindung betrifft die Herstellung von 3-Methylamino-1-(2-thienyl)-1propanon und seine Verwendung zur Herstellung des Pharmazeutikums (+)-(S)-Nmethyl-3-(1-naphthyloxy)-3-(2-thienyl)propylamine oxalat - (Handelsname Duloxetine®).
Process for the preparation of enantiomerically pure 1-substituted-3-aminoalcohols
申请人:Lonza AG
公开号:EP1566383A1
公开(公告)日:2005-08-24
Provided is a process for the preparation of enantiomerically pure 1-substituted-3-amino-alcohols, particularly of (S)-(-)- and (R)-(+)-3-N-methylamino-1-(2-thienyl)-1-propanol, by asymmetrically hydrogenating salts of a carboxylic acids with an aminoketone of the formula
wherein R1 is selected from the group consisting of 2-thienyl, 2-furanyl and phenyl, each optionally substituted with one or more halogen atoms and/or one or more C1-4-alkyl or C1-4-alkoxy groups, and wherein R2 is C1-4-alkyl or phenyl, each optionally substituted with one or more halogen atoms and/or one or more C1-4-alkyl or C1-4-alkoxy groups,
and wherein the corresponding aminoalcohols are obtained by subsequent hydrolysis of their salts. Furthermore provided are salts of a carboxylic acid with said aminoketones and the aminoalcohols obtained by asymmetriacally hydrogenating said aminoketones, respectively.
[EN] PROCESS FOR THE PREPARATION OF OPTICALLY ACTIVE 3-N-METHYLAMINO-1-(2-THIENYL)-1-PROPANOL<br/>[FR] PROCEDE DE PREPARATION DE 3-N-METHYLAMINO-1-(2-THIENYL)-1-PROPANOL OPTIQUEMENT ACTIF
申请人:LONZA AG
公开号:WO2004005307A1
公开(公告)日:2004-01-15
Enantiomerically enriched (S)-(-)-3-N-methylamino-l-(2-thienyl)-1-propanol or (R)-(+)-3-N-methylamino-l-(2-thienyl)-l-propanol of the formulae, or mirror image are prepared by i) treating an enantiomeric mixture of the amines Ia and Ib with (-)-2,3:4,6-di-O-isopropylidene-2-keto-L-gulonic acid or (+)-2,3:4,6-di-O-isopropylidene-2-keto-D-gulonic acid of the formulae (IIa) or mirror image ii) crystallizing the obtained diastereomerically enriched salts from the reaction mixture obtained in step i), iii) optionally recrystallizing said diastereomerically enriched salts IIIa or IVb, and iv) treating the diastereomerically enriched salts IIIa or IVb obtained in step ii) or step iii) with a base to liberate the enantiomerically enriched amines Ia or Ib.