公开(公告)号：KR860001885B1

公开(公告)日：1986-10-24

申请号：KR820002182

申请日：1982-05-19

Applicant: MITSUI TOATSU CHEMICALS

Inventor： MITA RYUICHI ,  HIKUCHI CHOJIRO ,  GAWASHIMA NOBUYUKI ,  KAWASHIMA NOBUHIRO

IPC: C07C227/14 ,  C07C101/30

Abstract: Compds. of the formula (I) [R1,R2=H, CH3, (un)substd. Ph. or pyridyl! were prepd. Thus, 160 ml of aq. soln. of 12.9 g 3-methylaziridine-2- carbonylethylester were subjected over cationexchange resin, Lewatit S-100(H-type) (Bayer Co.), washed with 60 ml distd. H2O and absorbed on the resin. The resin was heated 7 h at 80-85 ≦̸C in 100 ml of flask, packed on column, and eluted was concd. and dried to yield 11.4 g threonine(Yield 88.6%, Purity 92.5%).