EP 0922031 A1 19990616 - A PROCESS FOR THE PREPARATION OF DIHYDROPYRIDINES
Title (en)
A PROCESS FOR THE PREPARATION OF DIHYDROPYRIDINES
Title (de)
EIN VERFAHREN ZUR HERSTELLUNG VON DIHYDROYRIDINEN
Title (fr)
PROCEDE POUR LA PREPARATION DE DIHYDROPIRIDINES
Publication
Application
Priority
- EP 9704172 W 19970731
- IT MI961780 A 19960823
Abstract (en)
[origin: WO9807698A1] A process for the preparation of dihydropyridines of formula (V) by Knoevenagel condensation of a benzaldehyde with an acetoacetic ester in the presence of beta -alanine as a catalyst, and subsequent cyclocondensation of the resulting benzylidene acetoacetic ester with an amino crotonic ester.
IPC 1-7
IPC 8 full level
C07D 211/90 (2006.01)
CPC (source: EP)
C07D 211/90 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 9807698 A1 19980226; AU 3850597 A 19980306; CA 2263601 A1 19980226; EP 0922031 A1 19990616; IT 1283793 B1 19980430; IT MI961780 A0 19960823; IT MI961780 A1 19980223; JP 2000515855 A 20001128
DOCDB simple family (application)
EP 9704172 W 19970731; AU 3850597 A 19970731; CA 2263601 A 19970731; EP 97935558 A 19970731; IT MI961780 A 19960823; JP 50563798 A 19970731