Global Patent Index - EP 1102740 A1

EP 1102740 A1 2001-05-30 - METHOD FOR PRODUCING SORBIC ACID AND SORBIC ACID ESTERS OR DERIVATIVES THEREOF

Title (en)

METHOD FOR PRODUCING SORBIC ACID AND SORBIC ACID ESTERS OR DERIVATIVES THEREOF

Title (de)

VERFAHREN ZUR HERSTELLUNG VON SORBINSÄURE UND SORBINSÄUREESTERN ODER DEREN DERIVATEN

Title (fr)

PROCEDE POUR LA PREPARATION D'ACIDE SORBIQUE ET D'ESTERS D'ACIDE SORBIQUE OU DE LEURS DERIVES

Publication

EP 1102740 A1 (DE)

Application

EP 99938299 A

Priority

  • DE 19835783 A
  • EP 9905167 W

Abstract (en)

[origin: DE19835783A1] The invention relates to a method for producing compounds of formula (I) in which R<1> = H, C1-C6 alkyl, C1-C6 alkenyl, C3-C6 cycloalkyl or phenyl and R<2> = H or C1-C3 alkyl, whereby propyne is reacted with a compound of formula (II), in which R<1> and R<2> have the above-mentioned meanings, in the presence of a transition metal catalyst system.

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

C07C 67/347; C07C 51/353; C07C 57/10; C07C 69/587

IPC 8 full level (invention and additional information)

C07C 67/30 (2006.01); C07B 61/00 (2006.01); C07C 51/353 (2006.01); C07C 67/347 (2006.01); C07C 69/602 (2006.01)

CPC (invention and additional information)

C07C 51/353 (2013.01); C07C 67/347 (2013.01)

Combination set (CPC)

  1. C07C 51/353 + C07C 57/10
  2. C07C 67/347 + C07C 69/587

Citation (search report)

See references of WO 0007973A1

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

DE 19835783 A1 20000217; AU 5285699 A 20000228; CA 2339736 A1 20000217; EP 1102740 A1 20010530; JP 2002522408 A 20020723; WO 0007973 A1 20000217

INPADOC legal status


2002-01-02 [18W] WITHDRAWN

- Date of withdrawal: 20011030

2001-05-30 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001221

2001-05-30 [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