sodium chlorodifluoroacetate 、 tert-butyl (1R,3S)-3-[(1R)-1-acetyloxyprop-2-ynyl]-2,2-dimethylcyclopropane-1-carboxylate 以
二乙二醇二甲醚 为溶剂,
反应 1.0h,
以67%的产率得到tert-butyl (1R,3S)-3-[(R)-acetyloxy-(3,3-difluorocyclopropen-1-yl)methyl]-2,2-dimethylcyclopropane-1-carboxylate