公开(公告)号：ES2069801T3

公开(公告)日：1995-05-16

申请号：ES91119185

申请日：1991-11-11

Applicant: HOECHST AG

Inventor： MULLER WOLF-DIETER DR ,  JAEKEL FRANK DR ,  NAUMANN PETER DR ,  REINHARDT GERD DR

IPC: B01J27/02 ,  A01N47/28 ,  A01N47/30 ,  A01N47/32 ,  B01J31/02 ,  B01J31/08 ,  C07B61/00 ,  C07C407/00 ,  C07C409/40 ,  C11D3/39

Abstract: A process for the preparation of ureidoperoxycarboxylic acids of the formula A[NHCONHBCOOOH]x, in which x is the number 1 or 2, A, if x is 1, is hydrogen, C1-C20-alkyl, aryl, preferably phenyl, or haloaryl, preferably chlorophenyl, or if x is 2, is C1-C20-alkylene or arylene, preferably phenylene, B is a group of the formula in which n is a number from 1 to 20, m is the number 0, 1 or 2, R1 is C1-C20-alkyl and R2 is in each case hydrogen or C1-C20-alkyl, which comprises dissolving carbamoyllactams of the formula in which x, A and B have the abovementioned meanings, in a one- to six-fold, preferably a one- to three-fold, amount by weight of a strong catalyst acid, by then adding water in a one- to ten-fold molar excess, relative to the carbamoyllactam, to the solution of the carbamoyllactam in the catalyst acid and by heating the reaction mixture to form the ureidocarboxylic acid, by then adding to the reaction mixture an aqueous hydrogen peroxide solution in a one- to ten-fold, preferably a two- to four fold, molar excess per oxidizable carboxyl group of the ureidocarboxylic acid formed in the preceding reaction step, and by then precipitating the resulting ureidoperoxycarboxylic acid from the reaction mixture. These compounds are suitable as bleaches, oxidants and disinfectants.

公开(公告)号：ES2061747T3

公开(公告)日：1994-12-16

申请号：ES89102381

申请日：1989-02-11

Applicant: HOECHST AG

Inventor： MULLER WOLF-DIETER DR ,  KLEINER HANS-JERG DR

IPC: C07F9/30 ,  C07F9/32 ,  C07F9/572 ,  C07F15/00 ,  C08G18/10 ,  C08G18/28 ,  C08G18/83 ,  C08G65/32 ,  C08G65/329

Abstract: Rhodium complexes of the formula… [A - O - (CH2CH2O)n - A] 2 X Ia… and… [A - O - (CH2CH2O)m - CH3] X Ib… in which… n = 5-1000,… m = 5-250,… X denotes a tetrafluoroborate, hexafluorophosphate or perchlorate anion,… A denotes a radical of the formula … … (en)2 denotes two molecules of a monoolefin or one molecule of a diolefin… Ar denotes phenyl or phenyl substituted by one or two alkyl groups having 1 or 2 carbon atoms and… R denotes an arylene or alkylene bridge… and their use for the preparation of L-phosphinothricin and its derivatives by enantioselective catalytic hydrogenation of 2,3-dehydrophosphinothricin (derivatives).