An expeditious synthesis of novel pyranopyridine derivatives involving chromenes under controlled microwave irradiation
作者:Dushyant Singh Raghuvanshi、Krishna Nand Singh
DOI:10.3998/ark.5550190.0011.a25
日期:——
An efficient synthesis of novel pyrano[2,3-b]pyridine derivatives has been achieved by the cyclocondensation of 2-amino-3-cyano-4H-chromenes and cyclohexanone in the presence of aluminium chloride undercontrolledmicrowaveirradiation. The experimental conditions have been thoroughly optimized and established, allowing significant rate enhancements and excellent yields. The starting 4H-chromenes were