Scope of Successive C–H Functionalizations of the Methyl Group in 3-Picolines: Intramolecular Carbonylation of Arenes to the Metal-Free Synthesis of 4-Azafluorenones
作者:Joydev K. Laha、Krupal P. Jethava、Sagarkumar Patel
DOI:10.1021/acs.orglett.5b03071
日期:2015.12.4
in 2-aryl-3-picolines via oxidativeC–H functionalizations of the methyl group has been developed, providing an expedient synthesis of 4-azafluorenones. Distinct from the current literature wherein methylarenes have been used as acylating agents, 2-aryl-3-picolines in this study are transformed into aldehydes, which give 4-azafluorenones upon rapid intramolecular acylation. The study demonstrates the