EP 1480934 A2 20041201 - PRODUCTION OF ALKENONES
Title (en)
PRODUCTION OF ALKENONES
Title (de)
HERSTELLUNG VON ALKENONEN
Title (fr)
PRODUCTION D'ALCENONES
Publication
Application
Priority
- DE 10205224 A 20020208
- DE 10261471 A 20021231
- EP 0300913 W 20030130
Abstract (en)
[origin: WO03066558A2] Halogen alkenone ether can be produced by attaching carbonic acid halogenides or carbonic acid anhydrides to a vinyl ether. The aim of the invention is to improve said process by producing haloalkenone ether in the presence of an onium salt of a carbonic acid, which can be regenerated. The resulting product has a great yield. As an alternative, pyridine which is substituted by one, two, or three C1-C3-alkyl groups or other onium salts can be used.
IPC 1-7
IPC 8 full level
C07C 45/41 (2006.01); C07B 61/00 (2006.01); C07C 45/45 (2006.01); C07C 49/255 (2006.01); C07D 213/18 (2006.01)
CPC (source: EP US)
C07C 45/455 (2013.01 - EP US); C07D 213/18 (2013.01 - EP US)
Citation (search report)
See references of WO 03066558A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT SE SI SK TR
DOCDB simple family (publication)
WO 03066558 A2 20030814; WO 03066558 A3 20031231; AU 2003206803 A1 20030902; CN 1330622 C 20070808; CN 1628087 A 20050615; EP 1480934 A2 20041201; JP 2005537219 A 20051208; JP 4376061 B2 20091202; US 2005070716 A1 20050331; US 7057079 B2 20060606
DOCDB simple family (application)
EP 0300913 W 20030130; AU 2003206803 A 20030130; CN 03803404 A 20030130; EP 03704499 A 20030130; JP 2003565935 A 20030130; US 91258704 A 20040806