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Facile one‐pot synthesis of [1,2,4]triazolo[3,4‐ b ][1,3,4]thiadiazines and 3,7‐dimethyl‐4 H ‐[1,2,4]triazino[3,4‐ b ][1,3,4]thiadiazin‐6‐one using heteropolyacid catalysts
Author(s) -
Motamedi Radineh,
Monfared Aazam,
Nezamabadi Zohre Ghahghai,
Bamoharram Fatemeh F.
Publication year - 2011
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.407
Subject(s) - chemistry , medicinal chemistry , catalysis , combinatorial chemistry , organic chemistry
[1,2,4]Triazolo[3,4‐b][1,3,4]thiadiazines 2a , 2b , 2c , 2d , 2e , 2f and 3,7‐dimethyl‐4 H ‐[1,2,4]triazino[3,4‐b][1,3,4]thiadiazin‐6‐one 4 were synthesized by one‐pot cyclocondensation reaction with α‐chloroacetonitrile and α‐haloketones in the presence of catalytic amounts of heteropolyacids in very high yields and rates. J. Heterocyclic Chem., (2011).