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Title:
METHOD FOR PRODUCING ALICYCLIC DICARBOXYLIC ACID
Document Type and Number:
Japanese Patent JP2001114724
Kind Code:
A
Abstract:

To provide a hydrolyzing method accompanying isomerization of a stereoisomer in production of a carboxylic acid by hydrolysis of an alicyclic nitrile.

A bicyclo[2,2,1]-dicyano-heptane composition is hydrolyzed in an aqueous alkali solution, successively neutralized with an acid, filtered and taken out to provide the objective bicyclo[2,2,1]heptane-dicarboxylic acid composition in which an exo or endo isomer is isomerized into a diexo isomer.


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Inventors:
TORISU MASAAKI
YAMADA KUNIHIRO
HIRAYAMA TERUO
ITO NAOTO
Application Number:
JP29311299A
Publication Date:
April 24, 2001
Filing Date:
October 15, 1999
Export Citation:
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Assignee:
MITSUI CHEMICALS INC
International Classes:
C07C51/08; C07C61/13; (IPC1-7): C07C51/08; C07C61/13
Attorney, Agent or Firm:
Shotaro Mogami



 
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