2,3-二甲基-1,3-丁二烯 、
Dimethyl 2-(1,3,3,4,4-pentafluoro-2-sulfanylidenebutylidene)-1,3-dithiole-4,5-dicarboxylate 以
乙醚 为溶剂,
反应 1.0h,
以99%的产率得到Dimethyl 2-[[3,4-dimethyl-6-(1,1,2,2-tetrafluoroethyl)-2,5-dihydrothiopyran-6-yl]-fluoromethylidene]-1,3-dithiole-4,5-dicarboxylate