Patents by Inventor Jiantong GUAN

Jiantong GUAN 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).

  • 4-sulfur pentafluoride phenol compound and preparation method therefor, and preparation method for sulfur pentafluoride substituted benzopyran compound
    Patent number: 10414744
    Abstract: Provided are a 4-sulfur pentafluoride phenol compound and a preparation method therefor, and a preparation method for a sulfur pentafluoride substituted benzopyran compound. According to the present invention, sulfur pentafluoride salicylaldehyde with multiple substituent groups is synthesized through a plurality of steps by using sulfur pentafluoride phenol as a raw material, and then the sulfur pentafluoride substituted benzopyran compound is synthesized on this basis. The method is simple and convenient, and low in cost; overcomes the defects that, at present, the number of types of sulfur pentafluoride phenols is small, and the synthesis of various sulfur pentafluoride substituted benzopyran compounds cannot be met; and has wide industrial application prospects.
    Type: Grant
    Filed: June 22, 2016
    Date of Patent: September 17, 2019
    Assignee: GUANGZHOU INSTITUTES OF BIOMEDICINE AND HEALTH CHINESE ACADEMY OF SCIENCES
    Inventors: Yanmei Zhang, John J. Talley, Yican Wang, Chuang He, Jiantong Guan, Yongjie Lin, Micky D. Tortorella
  • 4-SULFUR PENTAFLUORIDE PHENOL COMPOUND AND PREPARATION METHOD THEREFOR, AND PREPARATION METHOD FOR SULFUR PENTAFLUORIDE SUBSTITUTED BENZOPYRAN COMPOUND
    Publication number: 20190084957
    Abstract: Provided are a 4-sulfur pentafluoride phenol compound and a preparation method therefor, and a preparation method for a sulfur pentafluoride substituted benzopyran compound. According to the present invention, sulfur pentafluoride salicylaldehyde with multiple substituent groups is synthesized through a plurality of steps by using sulfur pentafluoride phenol as a raw material, and then the sulfur pentafluoride substituted benzopyran compound is synthesized on this basis. The method is simple and convenient, and low in cost; overcomes the defects that, at present, the number of types of sulfur pentafluoride phenols is small, and the synthesis of various sulfur pentafluoride substituted benzopyran compounds cannot be met; and has wide industrial application prospects.
    Type: Application
    Filed: June 22, 2016
    Publication date: March 21, 2019
    Inventors: Yanmei ZHANG, John J. TALLEY, Yican WANG, Chuang HE, Jiantong GUAN, Yongjie LIN, Mickey D. TORTORELLA