摘要

A new heterocyclic 1,2,3,4-tetrahydroquinoxaline derivative compound, named as (2R,3R)-5-hydroxy2,3,8-tripheny1-3,4-dihydro-1H-pyrano[3,2-f]quinoxalin-10(2H)-one (A) has been obtanied from baicalein and 1,2,3,4-tetrahydroquinoxaline through a new and relatively straightforward crystallization approach. The compound A has been characterialzed by IR, H-1 NMR, TGA and X-ray crystallography. The compound shows good photolumicent property and the ability to detect trace amounts of nitrobenzene, 2-nitrotoluene and 3-nitrotoluene.