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Process for producing vitamin A or its carboxylic acid esters
   
Document Number
US Patent 4942262
Issued Date
July 17, 1990
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Abstract
The invention provides a process for producing vitamin A or its carboxylic acid ester by treating inexpensive and readily available industrial starting materials with potassium hydroxide which is widely employed industrially and is inexpensive.
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Number of Claims:
12
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Owner
Kuraray Company Ltd. (Kurashiki,JP)
Published
July 17, 1990
Application Number
07/368,800
Filed
June 20, 1989
US Classification
568/32   568/28
Int'l Classification
C07C   403/06   (20060101)   C07C   403/08   (20060101)   C07C   403/12   (20060101)   C07C   403/00   (20060101)  
Examiner
Assistant Examiner
Priority Data
Jul 05, 1988 [JP] 63-168190 Jul 05, 1988 [JP] 63-168191
USPTO Field of Search
568/32   568/28  
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