HETEROCYCLIC-SYSTEMS CONTAINING BRIDGEHEAD NITROGEN ATOM .75. SYNTHESES OF THIAZOLO[2,3-B]BENZO[H]QUINAZOLINE AND [1,3]THIAZINO[2,3-B]BENZO[H]QUINAZOLINE

Authors
PAL R HANDA RN PUJARI HK
Citation
R. Pal et al., HETEROCYCLIC-SYSTEMS CONTAINING BRIDGEHEAD NITROGEN ATOM .75. SYNTHESES OF THIAZOLO[2,3-B]BENZO[H]QUINAZOLINE AND [1,3]THIAZINO[2,3-B]BENZO[H]QUINAZOLINE, Indian journal of chemistry. Sect. B: organic chemistry, including medical chemistry, 33(7), 1994, pp. 629-633
Citations number
4
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
7
Year of publication
1994
Pages
629 - 633
Database
ISI
SICI code
0376-4699(1994)33:7<629:HCBNA.>2.0.ZU;2-7
Abstract
2-Arylidenetetralin-1-ones (1a-c) on condensation with thiourea give 4 ,5,6-tetrahydro-benzo[h]quinazoline-2(1H)-thiones (2a-c) which on reac tion with chloroacetic acids, alpha- and beta-halopropionic acids affo rd hydro-3-oxo-5H-thiazolo[2,3-b]benzo[h]quinazolines (3a-c), l-3(2H)- oxo-5H-thiazolo[2,3-b]benzo[h]quinazolines (4a-c) and -oxo-4H,6H[1,3]t hiazino[2,3-b]benzo[h]quinazolines (5a-c) respectively. The heterocycl ic system 5 has not yet been reported in the literature. Arylidenethia zolidinones (6a-c) have been obtained from the reaction of respective thiazolidinones (3a-c) with aromatic aldehydes.