Method for synthesizing asparagic acid by adding ammonia in C4 binary acid or its anhydride

Application Number: 00105151
Application Date: 2000.04.11
Publication Number: 1272488
Publication Date: 2000.11.08
Priority Information:
International: C07C227/08;C07C229/24
Applicant(s) Name: Tianjin Univ.
Inventor(s) Name: Wang Yaquan
Patent Agency Code: 12201
Patent Agent: ren yan
Abstract A method for synthesizing asparagic acid uses maleic acid or maleic anhydride or fumaric acid as raw material, and adds ammonia water in its aqueous solution and makes them produce reaction at 120-260 deg.c so as to synthesize the invented product. Said invention is characterized by controlling pH value of reaction system, introducing inert gas into the reaction system and making said system possess enough pressure. Said invention has the advantages of little by-product, no environmental pollution, high product yield and purity.