EP 0993434 A1 20000419 - USE OF AN ACID OF MEAN STRENGTH AS IZOMERISATION CATALYST OF AN EPOXIDE WITH A CARBONYL FUNCTION IN THE EPOXIDE ALPHA
Title (en)
USE OF AN ACID OF MEAN STRENGTH AS IZOMERISATION CATALYST OF AN EPOXIDE WITH A CARBONYL FUNCTION IN THE EPOXIDE ALPHA
Title (de)
GEBRAUCH EINER SÄURE MITTLERER STÄRKE ALS KATALYSATOR ZUR ISOMERISATION EINES EPOXYDES DER EINE CARBONYLFUNKTION IN ALPHA ZUM EPOXYD ENTHÄLT
Title (fr)
UTILISATION D'ACIDE DE FORCE MOYENNE COMME CATALYSEUR D'ISOMERISATION D'UN EPOXYDE PRESENTANT UNE FONCTION CARBONYLE EN ALPHA DE L'EPOXYDE
Publication
Application
Priority
- FR 9801331 W 19980624
- FR 9707873 A 19970624
Abstract (en)
[origin: FR2764885A1] The invention concerns a method for the izomerisation of an epoxide with a carbonyl function in the epoxide alpha characterised in that it consists in subjecting said epoxide dissolved in a slightly polar medium to the action of an acid whereof the pKa (measured in an aqueous medium) ranges between zero and 3 and the solubility in benzene is at least low (symbol d or delta in the "handbook of chemistry and physics) at a temperature between 50 DEG C and 150 DEG C. The invention is applicable to organic synthesis.
IPC 1-7
IPC 8 full level
B01J 27/24 (2006.01); B01J 31/02 (2006.01); C07B 61/00 (2006.01); C07C 67/31 (2006.01); C07C 67/333 (2006.01); C07C 69/716 (2006.01); C07C 69/732 (2006.01)
CPC (source: EP)
C07C 67/31 (2013.01); C07C 67/333 (2013.01)
Citation (search report)
See references of WO 9858898A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
FR 2764885 A1 19981224; FR 2764885 B1 19990910; AU 8343198 A 19990104; CN 1261343 A 20000726; EP 0993434 A1 20000419; JP 2002504920 A 20020212; WO 9858898 A1 19981230
DOCDB simple family (application)
FR 9707873 A 19970624; AU 8343198 A 19980624; CN 98806584 A 19980624; EP 98933703 A 19980624; FR 9801331 W 19980624; JP 50391599 A 19980624