EP 0000478 B1 19811125 - PROCESS FOR THE PREPARATION OF ACYLOINS
Title (en)
PROCESS FOR THE PREPARATION OF ACYLOINS
Publication
Application
Priority
DE 2732714 A 19770720
Abstract (en)
[origin: EP0000478A1] 1. A process for the production of acyloins corresponding to the following formula see diagramm : EP0000478,P6,F3 in which R1 and R2 are the same or different and represent straight-chain or branched-chain alkyl radicals containing from 1 to 18 carbon atoms, cycloalkyl radicals containing from 3 to 18 carbon atoms, arylalkyl radicals containing from 7 to 18 carbon atoms or R1 and R2 together represent an alkylene radical containing from 2 to 4 carbon atoms, by the condensation of corresponding aldehydes in the presence of catalysts and bases, characterised in that the catalysts used are reaction products of thiazoles corresponding to the following formula see diagramm : EP0000478,P7,F1 in which R3 represents hydrogen or an alkyl radical containing from 1 to 5 carbon atoms and R4 represents hydrogen, an alkyl radical containing from 1 to 5 carbon atoms or a hydroxyalkyl group containing from 2 to 4 carbon atoms, and a crosslinked chloromethyl polystyrene.
IPC 1-7
IPC 8 full level
B01J 31/00 (2006.01); C07B 61/00 (2006.01); C07C 45/00 (2006.01); C07C 45/72 (2006.01); C07C 49/17 (2006.01); C07C 49/24 (2006.01); C07C 49/337 (2006.01); C07C 49/487 (2006.01); C07C 67/00 (2006.01); C08F 8/34 (2006.01)
CPC (source: EP)
C07C 45/72 (2013.01); C07C 49/17 (2013.01); C08F 8/34 (2013.01)
Designated contracting state (EPC)
BE CH FR GB NL
DOCDB simple family (publication)
EP 0000478 A1 19790207; EP 0000478 B1 19811125; DE 2732714 A1 19790208; DE 2732714 C2 19850814; JP S5422310 A 19790220; JP S6223733 B2 19870525
DOCDB simple family (application)
EP 78100262 A 19780628; DE 2732714 A 19770720; JP 8722778 A 19780719