Patents Assigned to Nitto Boseki
  • Process for acylation with novel acylating agent
    Patent number: 4559172
    Abstract: This invention relates to a novel acylation process which comprises using as the acylating agent an o-hydroxy-substituted aromatic oxime ester represented by the general formula (I) ##STR1## and mixing said acylating agent with an amine substance represented by the general formula (III) ##STR2## to form a compound represented by the general formula (IV) ##STR3##
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: December 17, 1985
    Assignee: Nitto Boseki
    Inventors: Ikuo Hayashi, Keizo Ogihara, Tadao Itikawa, Kiyoshi Shimizu