Novel approach for the synthesis of 13-(aryl)-3,6,12,13- tetrahydrochromeno[4,3-b]pyrazolo[4,3-f]quinolin-12-one compounds

Saman Damavandi

Abstract

A series of chromeno[4,3-b]pyrazolo[4,3-f]quinolinone derivatives has been synthesized via onepot cyclocondensation of 3H-chromene-2,4-dione, aromatic aldehydes and 5-aminoindazole utilizing bis[2-(cyclohexylamino)tropone] Ti(IV) complex in toluene under reflux condition.