Global Patent Index - EP 1091927 A1

EP 1091927 A1 2001-04-18 - PROCESS FOR PREPARATION OF SUBSTITUTED PROPENOIC ACID ESTERS

Title (en)

PROCESS FOR PREPARATION OF SUBSTITUTED PROPENOIC ACID ESTERS

Title (de)

VERFAHREN ZUR HERSTELLUNG SUBSTITUIERTER PROPENSÄUREESTER

Title (fr)

PROCEDE DE PREPARATION D'ESTERS D'ACIDE PROPENOIQUE SUBSTITUES

Publication

EP 1091927 A1 (EN)

Application

EP 99902780 A

Priority

  • IB 9900321 W
  • IN 1137CA1998 A

Abstract (en)

[origin: WO0000460A1] The invention is for a cost effective and safe process for the preparation of substituted propenoic acid esters of general formula (I) in good yields wherein R is C1-C4 alkyl group, which comprises reacting an active methylene compound with, N,N-dimethylaminomethoxymethylium methyl sulfate in the presence of a solvent.

IPC 1-7 (main, further and additional classification)

C07C 227/10; C07C 229/30

IPC 8 full level (invention and additional information)

C07C 227/10 (2006.01); C07C 229/30 (2006.01)

CPC (invention and additional information)

C07C 227/10 (2013.01)

Combination set (CPC)

C07C 227/10 + C07C 229/30

Citation (search report)

See references of WO 0000460A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 0000460 A1 20000106; AU 2295999 A 20000117; EP 1091927 A1 20010418; JP 2002519337 A 20020702

INPADOC legal status


2002-03-27 [18W] WITHDRAWN

- Date of withdrawal: 20020131

2001-05-16 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: TORRENT PHARMACEUTICALS LTD

2001-05-16 [RIN1] INVENTOR (CORRECTION)

- Inventor name: VYAS, SHARAD KUMAR

2001-04-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001214

2001-04-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE