EP 1467961 A1 20041020 - PROCESS FOR THE PREPARATION OF 3,5,5-TRIMETHYL-CYCLOHEX-2-ENE-1,4-DIONE
Title (en)
PROCESS FOR THE PREPARATION OF 3,5,5-TRIMETHYL-CYCLOHEX-2-ENE-1,4-DIONE
Title (de)
VERFAHREN ZUR HERSTELLUNG VON 3,5,5-TRIMETHYL-CYCLOHEX-2-EN-1,4-DION
Title (fr)
PROCEDE DE PREPARATION DE 3,5,5-TRIMETHYLCYCLOHEX-2-ENE-1,4-DIONE
Publication
Application
Priority
EP 0200621 W 20020123
Abstract (en)
[origin: WO03062184A1] The present invention relates to an improved process for the preparation of 3,5,5-trimethylcyclohex-2-ene-1,4-dione by oxidation of 3,5,5-trimethylcyclohex-3-en-1-one in the presence of an oxidizing agent and a catalyst system comprising a transition metal complex catalyst, an auxiliary base, possibly water, and a catalytically active co-additive, characterized in that carboxylic acid amides are employed as the solvent.
IPC 1-7
IPC 8 full level
B01J 31/22 (2006.01); C07B 61/00 (2006.01); C07C 45/34 (2006.01); C07C 49/603 (2006.01)
CPC (source: EP KR)
C07C 45/34 (2013.01 - EP KR); C07C 49/603 (2013.01 - KR); C07C 2601/16 (2017.04 - EP)
Citation (search report)
See references of WO 03062184A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03062184 A1 20030731; BR 0215533 A 20041221; CA 2473941 A1 20030731; CN 1267396 C 20060802; CN 1615291 A 20050511; EP 1467961 A1 20041020; JP 2005526017 A 20050902; KR 20040086284 A 20041008; MX PA04006987 A 20041110
DOCDB simple family (application)
EP 0200621 W 20020123; BR 0215533 A 20020123; CA 2473941 A 20020123; CN 02827420 A 20020123; EP 02701264 A 20020123; JP 2003562068 A 20020123; KR 20047011365 A 20020123; MX PA04006987 A 20020123