The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 26, 2002
Filed:
Feb. 18, 2000
Applicant:
Inventors:
Masahiro Tsuji, Saitama-ken, JP;
Hiroyuki Yamazaki, Saitama-ken, JP;
Assignee:
Nisshin Pharma Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H 1/500 ;
U.S. Cl.
CPC ...
C07H 1/500 ;
Abstract
In a process for the preparation of pentaacetyl-&bgr;-D-glucopyranose by reacting D-glucose with acetic anhydride in the presence of sodium acetate catalyst, the improvement is provided wherein 5-10 mols of acetic anhydride are used per mol of D-glucose and the reaction is performed in an organic solvent. Pentaacetyl-&bgr;-D-glucopyranose is useful as intermediates for the synthesis of raw materials for industrial chemicals, medicines, cosmetics and the like.