Patents Examined by Ralph Gitmore
  • Process for the preparation of pentaacetyl-&bgr;-D-glucopyranose
    Patent number: 6350865
    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.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: February 26, 2002
    Assignee: Nisshin Pharma Inc.
    Inventors: Masahiro Tsuji, Hiroyuki Yamazaki