HETEROCYCLIC-SYSTEMS CONTAINING BRIDGEHEAD NITROGEN ATOM .77. SYNTHESES OF THIAZOLO[2,3-B]BENZO[F]QUINAZOLIN-1(2H)-ONE AND [1,3]THIAZINO[2,3-B]BENZO[F]QUINAZOLIN-1(2H)-ONE, 2 NOVEL AND HITHERTO UNKNOWN HETEROCYCLIC-SYSTEMS

Authors
PAL R HANDA RN PUJARI HK
Citation
R. Pal et al., HETEROCYCLIC-SYSTEMS CONTAINING BRIDGEHEAD NITROGEN ATOM .77. SYNTHESES OF THIAZOLO[2,3-B]BENZO[F]QUINAZOLIN-1(2H)-ONE AND [1,3]THIAZINO[2,3-B]BENZO[F]QUINAZOLIN-1(2H)-ONE, 2 NOVEL AND HITHERTO UNKNOWN HETEROCYCLIC-SYSTEMS, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 33(6), 1994, pp. 520-525
Citations number
13
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry → ACNP
ISSN journal
03764699
Volume
33
Issue
6
Year of publication
1994
Pages
520 - 525
Database
ISI
SICI code
0376-4699(1994)33:6<520:HCBNA.>2.0.ZU;2-I
Abstract
1-Benzylidenetetralin-2-one (2), obtained by the condensation of beta- tetralone (1) with benzaldehyde, on reaction with thiourea in alkaline medium gives ,2,5,6-tetrahydrobenzo[f]quinazoline-3-(4H)-thione (3). The thione 3 on condensation with chloroacetic acid and beta-chloropro pionic acid furnishes dihydrothiazolo[2,3-b]benzo[f]quinazolin-1(2H)-o ne (4) and ro[1,3]thiazino[2,3-b]benzo[f]quinazolin-1(2H)-one (5). Ary lidenethiazolidinones (6) have been prepared by the condensation of th iazolidinone (4) with aromatic aldehydes Compounds 4 and 5 represent t wo noval and hitherto unknown heterocyclic systems.