Chemistry Letters, Vol.34, No.10, 1346-1347, 2005
A novel one-pot synthesis of 2H-4-chlorochromenes via the Vilsmeier reaction of 2'-hydroxychalcones
A novel versatile one-pot synthesis of 2H-4-chlorochromenes from 2'-hydroxychalcones have been developed. This method has been investigated for the synthesis of 2H-4-chlorochromen-2-ylpyrazoles.