Chemistry Letters, Vol.35, No.1, 118-119, 2006
General microwave-assisted protocols for the expedient synthesis of furo[3,2-c]chromen-4-ones
Functionalized furo[3,2-c]chromen-4-oncs are expediently prepared in excellent yields (92-99%) from common 4-hydroxy-coumarins, isocyanides, and aldehydes under microwave irradiation.