ethyl 8-but-1-ynyl-6-(trifluoromethoxy)-2-(trifluoromethyl)-2H-chromene-3-carboxylate 在
钯 作用下,
以
乙醇 为溶剂,
反应 1.5h,
以to give 310 mg (68% yield) of the product as a yellow crystalline solid的产率得到ethyl 8-butyl-6-(trifluoromethoxy)-2-(trifluoromethyl)-2H-chromene-3-carboxylate