Title:
PROCESS FOR THE PREPARATION OF 1-(2,6,6-TRIMETHYL-2-CYCLOHEXENE-1-YL)-BUT-2-ENE-1-ONE
Document Type and Number:
WIPO Patent Application WO2003071425
Kind Code:
A3
Abstract:
The present invention relates to a novel process for the preparation of 1-(2,6,6-trimethyl-2-cyclohexene-1-yl)-2-but-2-ene-1-one commonly known as a-Damascone, by acylation of unsaturated cyclic hydrocarbon 2,6,6-trimethyl-1-cyclohexene followed by work up and its purification by vacuum distillation.
Inventors:
KUMAR KUDLI SHRINIVAS PRASHANT (IN)
Application Number:
PCT/IB2002/000506
Publication Date:
November 20, 2003
Filing Date:
February 19, 2002
Export Citation:
Assignee:
VEMULKAR NAGARAJ NARAYANSWAMY (IN)
SUREKHA NAGARAJ (IN)
VEMULKAR PRABHUKIRAN NAGARAJ (IN)
VEMULKAR LOKESH NAGARAJ (IN)
VEMULKAR RAVIKIRAN NAGARAJ (IN)
VEMULKAR KUMAR NAGARAJ (IN)
KUMAR KUDLI SHRINIVAS PRASHANT (IN)
SUREKHA NAGARAJ (IN)
VEMULKAR PRABHUKIRAN NAGARAJ (IN)
VEMULKAR LOKESH NAGARAJ (IN)
VEMULKAR RAVIKIRAN NAGARAJ (IN)
VEMULKAR KUMAR NAGARAJ (IN)
KUMAR KUDLI SHRINIVAS PRASHANT (IN)
International Classes:
C07C45/46; C07C47/225; C07C49/557; G06F9/46; (IPC1-7): C07C49/557; C07C45/46
Foreign References:
| US3822315A | 1974-07-02 | |||
| GB1530118A | 1978-10-25 |
Other References:
CHEMICAL ABSTRACTS, vol. 91, no. 13, 24 September 1979, Columbus, Ohio, US; abstract no. 108094B, KLEIN E.: "Kondakov reaction with crotonic acid anhydride. III. Reaction with alpha- and beta-cyclodihydromyrcene" page 594;
PATENT ABSTRACTS OF JAPAN vol. 7, no. 263 (C - 196)
CHEMICAL ABSTRACTS, vol. 101, no. 3, 16 July 1984, Columbus, Ohio, US; abstract no. 23777W, KATAGIRI T. ET AL.: "A simple synthesis of 9-ketodihydro-alpha-damascone" page 627;
PATENT ABSTRACTS OF JAPAN vol. 7, no. 263 (C - 196)
CHEMICAL ABSTRACTS, vol. 101, no. 3, 16 July 1984, Columbus, Ohio, US; abstract no. 23777W, KATAGIRI T. ET AL.: "A simple synthesis of 9-ketodihydro-alpha-damascone" page 627;
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