SYNTHESIS OF HENYL-9H-PYRANO[2,3-G]BENZOTHIAZOL-2-YL)BENZAMIDES FROM 6-AMINOFLAVONE

Authors
RAO MN SAMBAIAH T KRUPADANAM GLD SRIMANNARAYANA G
Citation
Mn. Rao et al., SYNTHESIS OF HENYL-9H-PYRANO[2,3-G]BENZOTHIAZOL-2-YL)BENZAMIDES FROM 6-AMINOFLAVONE, Bulletin of the Chemical Society of Japan, 67(8), 1994, pp. 2326-2328
Citations number
6
Categorie Soggetti
Chemistry
Journal title
Bulletin of the Chemical Society of Japan → ACNP
ISSN journal
00092673
Volume
67
Issue
8
Year of publication
1994
Pages
2326 - 2328
Database
ISI
SICI code
0009-2673(1994)67:8<2326:SOHF6>2.0.ZU;2-S
Abstract
6-Aminoflavone1) (1) was treated with aroyl isothiocyanate in acetone at reflux temperature yields N'-(2-phenyl-4-oxo-4H-[1]benzopyran-6-yl) thioureas (2). The products obtained on reaction of 2 with PCl5 in POC l3 medium leads to henyl-9H-pyrano[2,3-g]benzothiazol-2-yl)benzamides (4). The structures of the compounds synthesized were established by a nalytical and spectral data.