35162-23-3Relevant academic research and scientific papers
Condensed heterocyclic systems: Synthesis and antimicrobial activity of a few heterocycles derived from 7-chloro-5H-2, 3-dihydro-1,2,4-triazino[5, 6-b]indole-3-thione
Mohan,Kiran
, p. 645 - 647 (2007/10/02)
7-Chloro-5H-2, 3-dihydro-1, 2, 4-triazino[5, 6-b]indole-3-thione (II) on condensation with 1, 2-dibromoethane, 1, 3-dibromopropane and 2, 3-dichloroquinoxaline gives the cyclized products 8-chloro-2 3-dihydrothiazolo[3', 2'; 2,3][1, 2, 4]triazino[5, 6-b]indole (III), 9-chloro-4H-2, 3-dihydro[1,3]thiazino[3', 2':2, 3][1,2,4]triazino[5,6-b]indole (IV) and 10-chloroquinoxalino[2', 3':4,5]thiazolo[3,2-b]indolo]2,3-e][1, 2,4]triazine (V) respectively and not the angular isomers VI, VII and VIII. The unequivocal synthesis of the latter (VI, VII and VIII) has been accomplished by the reaction of 6-chloroisatin-3-thiosemicarbazone (1) with 1,2-dibromoethane, 1,3-dibromopropane and 2,3-dichloroquinoxaline respectively. The antibacterial and antifungal activities of the synthesized compounds have been evaluated.
Heterocyclic Systems Containing Bridgehead Nitrogen Atom: Synthesis of Thiazolotriazinoindoles and Isomeric Thiazolotriazinoindoles
Mohan, Jag,Anjaneyulu, G. S. R.,Kiran
, p. 346 - 349 (2007/10/02)
8-Bromo- and 7-chloro-5H-2,3-dihydrotriazinoindole-3-thiones (II) on condensation with α-halogenoketones give 5H-3-aroylmethylthio-8-bromo- and 5H-3-aroylmethylthio-7-chlorotriazinoindole hydrohalides (III) which undergo PPA cyclization to furnish 3-aryl-7-bromo- and 3-aryl-8-chloro-thiazolotriazinoindoles (IV) and not the angular isomeric 1-aryl-7-bromo- and 1-aryl-8-chloro-thiazolotriazinoindoles (VI).The unequivocal synthesis of the latter (VI) has also been accomplished.
