Patents by Inventor Shoufej Zhu

Shoufej Zhu 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).

  • Spiro Phosphine-Oxazoline, Preparation Method and Application thereof
    Publication number: 20110118472
    Abstract: The present invention belongs to a spiro phosphine-oxazoline and preparation method and application thereof, particularly, publishes a novel spiro phosphine-oxazoline and the preparation method of its iridium complex. The substituted 7-diaryl phosphino-7?-carboxy-1,1?-Lo-dihydro-indene is used as the starting raw material to synthesize the novel spiro phosphine-oxazoline of the present invention through a two-step reaction. The novel spiro phosphine-oxazoline and the iridium precursor are complexed to become a complex, and then through ion exchange, an iridium/phosphine spiro-oxazoline complex with different anions can be obtained. The present invention overcomes the shortcomings of the existing technology. The cheap readily available amino alcohol is used as the raw material to synthesize the novel spiro phosphine-oxazoline, on the fourth position of the oxazoline ring of which there is no substitutent.
    Type: Application
    Filed: January 20, 2009
    Publication date: May 19, 2011
    Applicant: Zheijiang Jiuzhou Pharmaceutical Co., Ltd.
    Inventors: Qilin Zhou, Shoufej Zhu, Shen Li, Lixin Wang, Song Song