Reacción #1796495

Ecuación de reacción

3-cyano-4-phenyl-2-furanone

cyclopentanone

4-dicyanomethylene-2,6-dimethyl-4H-pyran

pyridine

→

6-(N,N-Diethylamino)-2-formylbenzo[b]furan

Condiciones de reacción

Procedimiento

The new dyes of this invention are prepared by condensation of the new intermediates of Examples 1 and 2 in pyridine with an active methylene compound such as 3-cyano-4-phenyl-2-furanone, cyclopentanone, 4-dicyanomethylene-2,6-dimethyl-4H-pyran, 3-acetyl-7-(N,N-dialkylamino)coumarins and the like.

Fuente