公开(公告)号：DE3135840C1

公开(公告)日：1983-06-09

申请号：DE3135840

申请日：1981-09-10

Applicant: DEGUSSA

Inventor： EFFENBERGER FRANZ PROF DR ,  ZOLLER GERHARD DIPL-CHEM DR

IPC: C07C227/04 ,  C07C67/00 ,  C07C229/22 ,  C07C241/00 ,  C07C247/12 ,  C07C117/08

Abstract: The subject matter of the invention is the new 2-azido-3-benzyloxy-propionic acid benzyl ester which is a valuable intermediate product for the production of D,L-serine or derivatives of D,L-serine. The new compound is produced by reacting 2-chloroacrylonitrile with twice the molar amount of benzyl alcohol to form 3-benzyloxy-2-chloropropionic acid imino benzyl ester, saponifying this with acid to form 3-benzyloxy-2-chloropropionic acid benzyl ester, and finally exchanging the chlorine atom by means of an alkali metal azide in the presence of a phase transfer catalyst for an azido group.