4-chlorobenzaldehyde N,N-tetramethylenehydrazone 、
benzaldehyde N-boc imine 在
(R)-3,3'-bis(4-tBu-2,6-Me
2-C
6H
2)-1,1'-binaphthyl-2,2'-diCOOH 4 A molecular sieve 作用下,
以
氯仿 为溶剂,
反应 96.0h,
生成 (R)-2-tert-butoxycarbonylamino-1-(4-chlorophenyl)-2-phenylethanone N,N-tetramethylenehydrazone 、 (S)-2-tert-butoxycarbonylamino-1-(4-chlorophenyl)-2-phenylethanone N,N-tetramethylenehydrazone