Title:
【発明の名称】レチナールの製造方法およびそこで使用するための中間体化合物
Document Type and Number:
Japanese Patent JPH0819087
Kind Code:
B2
Abstract:
The present invention relates to a process for the preparation of vitamin A which consists in placing cyclogeranylsulphone in contact with a C10 aldehyde acetal, in halogenating the derivative obtained and in then removing the halogen group and the sulphone, in removing the acetyl group and in rectifying the retinal obtained.
Inventors:
Pierre Schavaldo
Application Number:
JP32957693A
Publication Date:
February 28, 1996
Filing Date:
December 02, 1993
Export Citation:
Assignee:
Loans-Poulin Nutrition Animal
International Classes:
C07C41/48; C07C41/50; C07C43/303; C07C43/313; C07C45/28; C07C45/51; C07C47/277; C07C49/255; C07C403/10; C07C403/14; C07D317/16; C07D317/20; C07D317/26; C07D319/06; (IPC1-7): C07C403/14; C07C41/50; C07C43/313; C07C45/51; C07C47/277; C07D317/16; C07D317/26
Domestic Patent References:
| JPS62201845A | ||||
| JPS625952A | ||||
| JPS60252458A |
Attorney, Agent or Firm:
Heiyoshi Odashima
Next Patent: SOUND PROCESSING METHOD