Trityl cation catalyzed intramolecular carbonyl-ene cyclization and [2+2] cycloaddition
Trityl cation catalyzed intramolecular carbonyl-ene cyclization and [2+2] cycloaddition
复制标题
三苯甲基阳离子催化分子内羰基烯环化和[2 2]环加成
作者：
Nomoto;Y.; Horinouchi;R.; Nishiyama;N.; Nakano;K.; Ichikawa;Y.; KOTSUKI;H.
一种前所未有的由三烷基卤化物和硫脲组成的无金属催化体系被发现是生成三烷基阳离子的便利来源，这种协同催化体系被证明对分子内羰基烯环化和[2+2]环加成非常有效。
An unprecedented metal-free catalytic system composed of trityl halides and thioureas has been found to be a convenient source for the generation of trityl cation species, and this cooperative catalytic system was proved to be highly effective for intramolecular carbonyl-ene cyclization and [2+2] cycloadditions.