Synthesis of N-(3, 4, 4a, 10a-tetrahydro-2H, 5H-pyrano [2,3-b]chromen-5- yl)amines derivatives as antitumor compounds

A Considering the importance of aromatic amines derivatives due to their biological activities, a new synthesis of 1- aminoanthraquinone and 4-nitroaniline through a one-pot three-component reaction with salicylaldehyde and 3,4-dihydro-2Hpyran under mild conditions is reported.