Ketone-derived 2,3-dihydroquinazolinones in <i>N</i>-heteroarene C–H alkylation <i>via</i> C–C bond scission under oxidative metal catalysis
作者:Pinku Prasad Mondal、Amit Pal、Athira K Prakash、Basudev Sahoo
DOI:10.1039/d2cc04947c
日期:——
activation of pre-aromatic 2,3-dihydroquinazolinone to generate an alkyl radical, supported by mechanistic studies. In addition to the broad scope, good functionality tolerance, late stage functionalization of APIs, and synthesis of a novel Papaverine analogue, the utilization of an N-heteroarene C–H bond and ketone as a non-trivial alkyl radical source represents the salient feature of this method.
开发了室温下银催化的N-杂芳烃与酮衍生的 2,3-二氢喹唑啉酮的氧化 sp 2 C-H 烷基化反应。金属催化剂和过二硫酸盐氧化剂的组合促进了很少探索的前芳香族 2,3-二氢喹唑啉酮的热活化以产生烷基自由基,这得到了机理研究的支持。除了广泛的范围、良好的功能耐受性、API 的后期功能化和新型罂粟碱类似物的合成外,利用N-杂芳烃 C-H 键和酮作为重要的烷基自由基来源代表了显着特征这种方法。