two successive silyl migrations, and 4,7-dimethyl-o-phenanthroline ligand favors cleavage of the endocyclic C-Si bond. Diverse Csp3/Csp3 or Csp2/Csp3 electrophiles can be installed at the 2- and 6-positions. This approach was used to chemoselectively functionalize the three C-Si bonds of 2,4,6-tri(trimethylsilyl) benzyl alcohol, transforming it into isochroman derivatives. The approach even works as
通过顺序的[1,4] -Csp2到O-甲
硅烷基的迁移,一个锅中已经实现了2,6-二(三甲基甲
硅烷基)
苄醇的两倍不对称C-Si键双官能化。羟基用作“开-关-开”开关,以控制两个连续的甲
硅烷基迁移,并且4,7-二甲基-邻
菲咯啉
配体有利于内环C-Si键的裂解。可以在2位和6位安装不同的Csp3 / Csp3或Csp2 / Csp3亲电试剂。该方法用于将2,4,6-三(三甲基甲
硅烷基)
苄醇的三个C-Si键
化学选择性官能化,将其转化为
异色满衍
生物。该方法甚至可以作为五组分反应来构建复杂的对称结构。