A novel one-pot synthesis of furo[3,2-c]coumarins has been developed from readily available starting materials 4-hydroxycoumarin and arylglyoxal. This method is simple, rapid and good yielding.
Syntheses of 2,3-dimethyl-4H-furo[3,2-c]coumarin and 3-phenyl-4H-furo[3,2-c]coumarin as angular furocou- marins were carried out through Williamson reaction of 4-hydroxycoumarin with a-haloketones followed by cycli- z...
From the EtOAc extract of the underground part of notopterygium incisum Ting.,three new furocoumarins. 5-[(2E)-3,7-dimethyl-5-ethylox-2.,6-octadienyloxylpsoralen named ethylnotopterol(A),5-(2E,5E)-3,7-dimethyl-7-dimet...