The thermal decomposition of phenyl (bromodichloromethyl)-mercury in the presence of aryl aldehydes and dimethyl acetylenedicarboxylate leads to the formation of dimethyl 2-halo-5-arylfuran-3, 4-dicarboxylates by selective trapping of the intermediate dihalocarbonyl ylides.
在芳基醛和
乙炔二
羧酸二甲酯的存在下,苯基(
溴二
氯甲基)
汞的热分解导致通过选择性捕集中间体二卤代羰基烷基化物形成2-卤代-5-芳基
呋喃-3,4-二
羧酸二甲酯。