dimethyl 1',9'-ditert-butyl-3',7'-dimethyl-5-sulfanylidenespiro[1-aza-2lambda5-phosphacyclopenta-1,3-diene-2,11'-5H-benzo[d][1,3,2]benzodioxaphosphocine]-3,4-dicarboxylate 、
2,2,2-三氟乙醇 以
甲苯 为溶剂,
以50%的产率得到dimethyl 1',9'-ditert-butyl-3',7'-dimethyl-5-sulfanylidene-2-(2,2,2-trifluoroethoxy)spiro[1-aza-2lambda5-phosphacyclopent-3-ene-2,11'-5H-benzo[d][1,3,2]benzodioxaphosphocine]-3,4-dicarboxylate