4-methyl-3-(4-methylbenzyl)-2-(4-chlorophenyl)selenocarbamoylthiazolium inner salt 、
丁炔二酸二甲酯 以
苯 为溶剂,
反应 0.5h,
以84%的产率得到(E)-dimethyl 4-(4-chlorophenyl)-3-(1,2-dimethoxycarbonylvinylthio)-2-methyl-1-(4-methylbenzyl)-1,4-dihydroselenopheno-[2,3-b]pyrazine-6,7-dicarboxylate