ethyl 7-hydroxy-2,2-dimethylbenzo[d][1,3]dioxole-5-carboxylate 、
methyl 2-diazo-2-(dimethoxyphosphoryl)acetate 在
rhodium acetate dimer 作用下,
以
1,2-二氯乙烷 为溶剂,
以59%的产率得到ethyl 7-[1-(dimethoxyphosphoryl)-2-methoxy-2-oxoethoxy]-2,2-dimethylbenzo[d][1,3]dioxole-5-carboxylate