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Title:
PRODUCTION OF AMINODISACCHARIDE AND CHITIN OR ITS ANALOGUE POLYSACCHARIDES
Document Type and Number:
Japanese Patent JPH093088
Kind Code:
A
Abstract:

PURPOSE: To obtain a new aminodisaccharide comprising specific aminodisaccharides having oxazoline ring structure, capable of providing chitin or analogue polysaccharides by polyaddition reaction due to the action of chitinase and useful e.g. as a raw material for chitin or chitosan.

CONSTITUTION: This new aminodisaccharide comprises 2-methyl-{4-O-[2- acetamide-2-deoxy-β-glucopyranosyl]-l,2-dideoxy-α-glucopyrano} [2,1-d]-2- oxazoline expressed by formula I. The compound is reacted with chitinase in a buffer and subjected to polyaddition reaction due to enzyme catalyst to provide a chitin or its analogue polysaccharides. The aminodisaccharide is useful as a producing raw material for chitin or chitosan which has no problem on security of a raw material. The aminodisaccharide is obtained by reacting di-N-acetylchito-biosehexacetate with acetyl chloride in the presence of a base to chlorinate the acetate derivative and reacting the resultant chlorinated compound with acetonitrile in the presence of tetraethylammonium chloride, and further deprotecting hydroxyl group.


Inventors:
KOBAYASHI SHIRO
SHODA SHINICHIRO
KIYOSADA SHIYUNJI
Application Number:
JP1995000151333
Publication Date:
January 07, 1997
Filing Date:
June 19, 1995
Export Citation:
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Assignee:
SHINETSU CHEMICAL CO
KOBAYASHI SHIRO
International Classes:
C12P19/26; C07H9/06; C08B37/08; (IPC1-7): C07H9/06; C08B37/08; C12P19/26
Attorney, Agent or Firm:
奥山 尚男 (外2名)