Ultrasound-assisted one pot synthesis of polysubstituted <i>meta</i>-terphenyls using ring transformation strategy
作者:Samata E. Shetgaonkar、Fateh V. Singh
DOI:10.1080/00397911.2019.1591454
日期:2019.4.18
An ultrasound-assisted rapid synthesis of meta-terphenyls 9 by the carbanion-induced ring transformation reaction of 6-aryl-5-methyl-2H-pyran-2-ones 7 with functionalized ketones 8 under basic conditions at room temperature has been delineated. The present method gives an easy access to functionally crowded m-terphenyls 9 with notable features including mild reaction condition, remarkable functional groups tolerance, shorter reaction time and high product yields.[GRAPHICS].