Patents Represented by Law Firm Keck, Marin & Cate
  • Method of chlorinating side chain of 2-chloro-methylpyridine
    Patent number: 5324841
    Abstract: The invention relates to a method of chlorinating a side chain methyl group of 2-chloro-methylpyridine. The method comprising the steps of:(a) reacting said 2-chloro-methylpyridine with chlorine radical so that hydrogen chloride and/or hydrochloride of 2-chloro-methylpyridine are formed; and (b) neutralizing said hydrogen chloride and/or said hydrochloride of said 2-chloro-methyl-pyridine with a basic solution so as to chlorinating a side chain methyl group of said 2-chloro-methylpyridine.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: June 28, 1994
    Assignee: Central Glass Company
    Inventors: Yasunobu Nishimura, Yukikazu Itou, Asao Morino, Katuya Nishihara, Shinya Kawamura