Mercuric triflate was used to catalyze cycloisomerization of alkynyl-1,3-cyclohexanediones and cyclopentanediones to give fused oxabicyclic systems under mild reaction conditions with high catalytic turnover up to 1000 times.
三氟甲磺酸汞被用于催化炔丙基-
1,3-环己二酮和
环戊二酮的环异构化反应,在温和反应条件下生成高产率的稠合氧杂双环体系,催化转化率高达1000倍。