(Z)-methyl 3-(2-formylphenylthio)pent-2-enoate 在
1(R)-aminoindan-2(S)-ol-derived C
6F
5-1,2,4-triazolium salt
potassium tert-butylate 作用下,
以
甲苯 为溶剂,
反应 24.0h,
生成 (S)-(2-ethyl-3-oxo-2,3-dihydrobenzo[b]thiophen-2-yl)acetic acid methyl ester 、 (R)-(2-ethyl-3-oxo-2,3-dihydrobenzo[b]thiophen-2-yl)acetic acid methyl ester