KO<sup><i>t</i></sup>Bu Mediated Synthesis of Phenanthridinones and Dibenzoazepinones
作者:Bhagat Singh Bhakuni、Amit Kumar、Shah Jaimin Balkrishna、Javeed Ahmed Sheikh、Sanjit Konar、Sangit Kumar
DOI:10.1021/ol301077y
日期:2012.6.1
Synthesis of substituted phenanthridinones and dibenzoazepinones has been realized from 2-halo-benzamides in the presence of potassium tert-butoxide and a catalytic amount of 1,10-phenanthroline or AIBN. This new carbon–carbon bond forming reaction gives direct access to various biaryl lactams containing six- and seven-membered rings chemoselectively. Carbon–carbon coupling seems to proceed by the generation
在叔丁醇钾和催化量的1,10-菲咯啉或AIBN的存在下,由2-卤代苯甲酰胺合成了取代的菲啶酮和二苯并a庚酮。这种新的碳-碳键形成反应可直接接近具有化学选择性的六元和七元环的各种联芳基内酰胺。碳-碳偶合似乎是通过酰胺环中自由基的产生而进行的,从而导致苯胺的CH芳基化。