Patents by Inventor Tatsuhiro Nozoe

Tatsuhiro Nozoe has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method of producing 2?-trifluoromethyl group-substituted aromatic ketone
    Patent number: 9783476
    Abstract: A method produces a 2?-trifluoromethyl-substituted aromatic ketone and includes reacting a 2-halogen-substituted benzotrifluoride compound with magnesium metal to convert the compound to a Grignard reagent; and reacting the Grignard reagent with an acid anhydride; and then hydrolyzing the resultant to produce a 2?-trifluoromethyl-substituted aromatic ketone. The method of producing a 2?-trifluoromethyl-substituted aromatic ketone enables 2?-trifluoromethyl-substituted aromatic ketone to be produced without using expensive raw materials by generating a Grignard reagent as an intermediate and reacting this Grignard reagent with an acid anhydride in an efficient productivity.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: October 10, 2017
    Assignee: Toray Fine Chemicals Co., Ltd.
    Inventors: Jiro Nakatani, Tatsuhiro Nozoe
  • METHOD OF PRODUCING 2'-TRIFLUOROMETHYL GROUP-SUBSTITUTED AROMATIC KETONE
    Publication number: 20170088499
    Abstract: A method produces a 2?-trifluoromethyl-substituted aromatic ketone and includes reacting a 2-halogen-substituted benzotrifluoride compound with magnesium metal to convert the compound to a Grignard reagent; and reacting the Grignard reagent with an acid anhydride; and then hydrolyzing the resultant to produce a 2?-trifluoromethyl-substituted aromatic ketone. The method of producing a 2?-trifluoromethyl-substituted aromatic ketone enables 2?-trifluoromethyl-substituted aromatic ketone to be produced without using expensive raw materials by generating a Grignard reagent as an intermediate and reacting this Grignard reagent with an acid anhydride in an efficient productivity.
    Type: Application
    Filed: September 7, 2015
    Publication date: March 30, 2017
    Inventors: Jiro Nakatani, Tatsuhiro Nozoe