Catalyst-controlled regiodivergent ring-opening C(sp<sup>3</sup>)–Si bond-forming reactions of 2-arylaziridines with silylborane enabled by synergistic palladium/copper dual catalysis
作者:Youhei Takeda、Kaoru Shibuta、Shohei Aoki、Norimitsu Tohnai、Satoshi Minakata
DOI:10.1039/c9sc02507c
日期:——
A catalyst-controlled regiodivergent and stereospecific ring-opening C(sp3)–Si cross-coupling of 2-arylaziridines with silylborane enabled by synergistic Pd/Cu dual catalysis has been developed. Just by selecting a suitable combination of catalysts, the regioselectivity of the coupling is completely switched to efficiently provide two regioisomers of β-silylamines (i.e., β-silyl-α-phenethylamines and
已经开发出一种催化剂控制的区域发散和立体定向开环 C(sp 3 )-Si 的 2-芳基氮杂环丙烷与甲硅烷基硼烷通过协同 Pd/Cu 双催化实现的交叉偶联。只需选择合适的催化剂组合,即可完全转换偶联的区域选择性,从而以良好至高产率有效地提供两种 β-甲硅烷基胺的区域异构体(即β-甲硅烷基-α-苯乙胺和 β-甲硅烷基-β-苯乙胺) . 此外,反应条件的轻微改变导致反应途径的剧烈变化,导致串联反应以有效和选择性的方式产生另一种甲硅烷基胺的区域异构体(即α-甲硅烷基-β-苯乙胺)。