methyl 2-azido-3-(3-trifluoromethoxyphenyl)acrylate 在
SiO2 、
ethyl acetate n-hexane 作用下,
以
间二甲苯 为溶剂,
反应 0.5h,
以Flash chromatography (1.5×25 cm, SiO2, 14% EtOAc/hexane) afforded methyl 5-trifluoromethoxyindole-2-carboxylate 116 (53 mg, 22%) as a white solid的产率得到Methyl 5-trifluoromethoxyindole-2-carboxylate