Global Patent Index - EP 1001919 A1

EP 1001919 A1 2000-05-24 - EFFICIENT SYNTHESIS OF CYCLOPROPYLACETYLENE

Title (en)

EFFICIENT SYNTHESIS OF CYCLOPROPYLACETYLENE

Title (de)

EFFIZIENTE SYNTHESE VON CYCLOPROPYLACETYLEN

Title (fr)

SYNTHESE EFFICACE DE CYCLOPROPYLACETYLENE

Publication

EP 1001919 A1 (EN)

Application

EP 98937309 A

Priority

  • GB 9800464 A
  • US 9815957 W
  • US 5486097 P

Abstract (en)

[origin: WO9907657A1] An efficient and facile process for the preparation of cyclopropylacetylene from thioanisole and cyclopropyl substituted ketones or aldehydes is disclosed

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

C07C 4/00; C07C 1/32

IPC 8 full level (invention and additional information)

C07C 1/32 (2006.01); C07C 13/04 (2006.01)

CPC (invention and additional information)

C07C 13/04 (2013.01); C07C 2601/02 (2017.05)

Designated contracting state (EPC)

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

EPO simple patent family

WO 9907657 A1 19990218; AU 738790 B2 20010927; AU 8604998 A 19990301; CA 2298835 A1 19990218; EP 1001919 A1 20000524; EP 1001919 A4 20001011; JP 2001513518 A 20010904

INPADOC legal status


2003-09-10 [18R] REFUSED

- Effective date: 20030418

2001-08-01 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010618

2000-10-11 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000824

2000-10-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

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

2000-10-11 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 07C 13/04 A, 7C 07C 1/32 B, 7C 07C 4/00 -

2000-05-24 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000306

2000-05-24 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

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