2-Amino-3-formylchromone may be used in the preparation of the following:chiral Schiff base ligands (R)/(S)-2-amino-3-(((1-hydroxypropan-2-yl)imino)methyl)-4H-chromen-4-onehydrazone derivatives, required for the synthesis of heterocyclic Schiff′s bases having antimicrobial activityN-{4-[(6-chloro-4-oxo-4H-chromen-3-ylmethylene)amino]phenyl}-3,5-dimethyl-benzofuran-2-carboxamideN-{4-[(6-chloro-4-oxo-4H-chromen-3-ylmethylene)amino]phenyl}-1,4-dihydro-chromono [2,3-b]pyrrole-2-carboxamide6-chloro-3-{[4-(2-thioxo-3,6-dihydro-2H-1,3,4-thiadiazin-5-ylamino)phenylimino] methyl}- 4-oxo-4H-chromene3--(2-amino--4--oxo--4H--chromen--3--yl)methylidene)--6-- ethyl--2H--pyrano[3,2--c]quinolone--2,4,5(3H,6H)-trione
