公开(公告)号：DE59800397D1

公开(公告)日：2001-02-01

申请号：DE59800397

申请日：1998-01-29

Applicant: BASF AG

Inventor： FREDE DR ,  DULLY CHRISTIAN ,  DITRICH DR ,  MELDER JOHANN-PETER ,  WEYER DR ,  WEITZE ACHIM

IPC: C12P41/00 ,  B01D61/44 ,  C07C51/42 ,  C07C51/43 ,  C07C59/125 ,  C07C209/88 ,  C07C211/27 ,  C07C211/29 ,  C25B3/00

Abstract: Purification of alpha , beta , gamma -substituted carboxylic acids of formula (I), their salts and esters or a mixture of these and one or more polyol and one or more aminoalcohol in aqueous solution comprises treatment by electrodialysis. R1 = H, 1-10C alkyl, Na or K ; R2 = H or 1-10C alkyl; R3 = H, 1-10C alkyl (optionally substituted by NH2, OH, 1-4C alkyl, 1-4C alkoxy or halo-substituted phenyl); X = halo (when R3 is absent), N, O, P, S; and m = 0-2. Also claimed are: (i) cleavage of an optically active amide to an optically active amine and (I); and (ii) resolution of a racemic primary or secondary amine by reacting (I) with a hydrolase, separating the unreacted enantiomer of the amine from the amide and hydrolysing the amide to give the amine enantiomer and (I).

公开(公告)号：DE59701496D1

公开(公告)日：2000-05-31

申请号：DE59701496

申请日：1997-05-21

Applicant: BASF AG

Inventor： HUBER GUENTHER ,  WEIPER-IDELMANN DR ,  KRAMER DR ,  GOLOMBEK DR ,  FREDE DR ,  SPISKE DR ,  SCHEHLMANN KARL HEINZ ,  STEUER VOLKER

IPC: C25B3/25 ,  C25B11/00 ,  C25B3/04 ,  C25B11/04

Abstract: Electrochemically reducing an organic compound comprises: contacting the compound with a cathode comprising a support of electrically conducting material and an electrically conducting, cathodically polarised layer formed on this by sedimentation in situ.