Breaking of the C−C Bond of Cyclobutanones by Rhodium(I) and Its Extension to Catalytic Synthetic Reactions
作者:Masahiro Murakami、Hideki Amii、Kunji Shigeto、Yoshihiko Ito
DOI:10.1021/ja9604525
日期:1996.1.1
complex. When a cyclobutanone bearing a hydrogen atom at the 3-position was used, appropriate choice of the catalyst system led to the selective formation of either a cyclopropane or an alkene. Breaking of the carbon−carbon bond was next combined with hydrogenolysis. When cyclobutanone was treated under hydrogen pressure with a catalytic amount of a rhodium(I) complex having a bidentate diphos...
描述了铑 (I) 催化合成转化的研究,包括选择性断裂 C-C 键 α 到环丁酮的羰基。用等摩尔量的 (Ph3P)3RhCl 在甲苯中回流处理环丁酮时发生脱羰,得到相应的环丙烷。环丙烷的形成表明,Rh(I) 在初始步骤中插入了羰基碳和 α-碳之间的键。还实现了环丁酮的催化脱羰。反应的模式和速率很大程度上取决于铑(I)配合物的配体。When a cyclobutanone bearing a hydrogen atom at the 3-position was used, appropriate choice of the catalyst system led to the selective formation of either a cyclopropane or an alkene. 碳-碳键的断裂接下来与氢解结合。当环丁酮在氢气压力下用催化量的具有双齿双膦的铑(I)配合物处理时..