New Initiation Modes for Directed Carbonylative C–C Bond Activation: Rhodium-Catalyzed (3 + 1 + 2) Cycloadditions of Aminomethylcyclopropanes
作者:Gang-Wei Wang、Niall G. McCreanor、Megan H. Shaw、William G. Whittingham、John F. Bower
DOI:10.1021/jacs.6b08608
日期:2016.10.19
Under carbonylative conditions, neutral Rh(I)-systems modified with weak donor ligands (AsPh3 or 1,4-oxathiane) undergo N-Cbz, N-benzoyl, or N-Ts directed insertion into the proximal C–C bond of aminomethylcyclopropanes to generate rhodacyclopentanone intermediates. These are trapped by N-tethered alkenes to provide complex perhydroisoindoles.
在羰基化条件下,用弱供体配体(AsPh3 或 1,4-氧噻烷)修饰的中性 Rh(I)-系统经历 N-Cbz、N-苯甲酰基或 N-Ts 定向插入氨基甲基环丙烷的近端 C-C 键中生成罗达环戊酮中间体。这些被 N 系链烯烃捕获以提供复杂的全氢异吲哚。