The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2017
Filed:
Dec. 10, 2012
Nanjing University of Technology, Nanjing, CN;
Zhejiang Medicine Co., Ltd. Xinchang Pharmaceutical Factory, Donglu, CN;
Chunlei Lv, Huancheng Donglu, CN;
Shiqing Pi, Huancheng Donglu, CN;
Jianhui Chen, Huancheng Donglu, CN;
Dingqiang Lu, Huancheng Donglu, CN;
Pingkai Ouyang, Huancheng Donglu, CN;
Nanjing University of Technology, Nanjing, CN;
Zhejiang Medicine Co., Ltd., Donglu, CN;
Abstract
Provided in the present invention is a preparation method for a phosphonic salt, comprising the step of: reacting 3,7,11-trimethyldodec-1,4,6,10-tetraene-3-ol with triarylphosphine and an acid in an alcohol solvent at 50-100° C. to form the phosphonic salt, wherein the acid is a sulfamic acid or methanesulfonic acid, and the alcohol solvent is a straight chain monohydric alcohol containing 1-5 carbon atoms. The method is performed in nearly neutral conditions, greatly reducing the generation of impurities and greatly obtaining phosphonic salt with an increased E content. The yield of lycopene obtained by using the phosphonic salt as a raw material is high.