专利号:US-9809546-B2 优先权日:2016-03-14 标 题 :Process for producing diamine derivative 发明人:LU TZU-CHIANG; CHEN CHIEN-YI; CHENG CHING-SHUEN; MAI CHIN-CHENG 权利人:CHUNGHWA CHEMICAL SYNTHESIS & BIOTECH CO LTD; CHUNGWHA CHEMICAL SYNTHESIS & BIOTECH CO LTD 摘要:The present invention provides a low-toxic and high-recovery industrial process for synthesizing an optically active diamine derivative represented by formula (D), the process comprising the steps of: (a) mixing a compound represented by formula (A) and a compound represented by formula (C) in organic solvents and secondary amine; (b) reaction under heating; (c) cooling and adding water to the mixed solution, allowing it to crystallize to obtain the compound represented by formula (D).