3-(4-iodophenyl)-4-cyano-5-ethyl-thiophene-2-carboxylic acid ethyl ester 、
六甲基二锡 在
bis-triphenylphosphine-palladium(II) chloride 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 2.0h,
以82%的产率得到4-cyano-5-ethyl-3-(4-trimethylstannyl-phenyl)-thiophene-2-carboxylic acid ethyl ester