Patents by Inventor Canxian Mu

Canxian Mu 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).

  • Preparation methods of azoxystrobin and its analogs
    Patent number: 8278445
    Abstract: Preparation method of a compound of general formula (I) comprises the following steps: (1) a compound of general formula (II) reacts with a formylating agent in an aprotic solvent at a temperature between ?20° C. and 200° C. in the presence of a Lewis acid, then an organic base is added to promote the reaction to obtain an intermediate product; (2) the above intermediate product reacts with a methylating agent in the presence of an alkali at a temperature between ?20° C. and 100° C. to obtain the compound of formula (I).
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: October 2, 2012
    Assignee: Nutrichem Company Limited
    Inventors: Shangzhong Liu, Canxian Mu, Wenjun Wang, Jianwei Chen, Shuguang Wang
  • PREPARATION METHODS OF AZOXYSTROBIN AND ITS ANALOGS
    Publication number: 20100179320
    Abstract: Preparation method of a compound of general formula (I) comprises the following steps: (1) a compound of general formula (II) reacts with a formylating agent in an aprotic solvent at a temperature between ?20° C. and 200° C. in the presence of a Lewis acid, then an organic base is added to promote the reaction to obtain an intermediate product; (2) the above intermediate product reacts with a methylating agent in the presence of an alkali at a temperature between ?20° C. and 100° C. to obtain the compound of formula (I).
    Type: Application
    Filed: September 19, 2008
    Publication date: July 15, 2010
    Inventors: Shangzhong Liu, Canxian Mu, Wenjun Wang, Jianwei Chen, Shuguang Wang