Facile one-pot synthesis of [1,2,4]triazolo[3,4-b][1,3,4]thiadiazines and 3,7-dimethyl-4H-[1,2,4]triazino[3,4-b][1,3,4]thiadiazin-6-one using heteropolyacid catalysts
作者:Radineh Motamedi、Aazam Monfared、Zohre Ghahghai Nezamabadi、Fatemeh F. Bamoharram
DOI:10.1002/jhet.407
日期:2011.5
[1,2,4]Triazolo[3,4‐b][1,3,4]thiadiazines 2a, 2b, 2c, 2d, 2e, 2f and 3,7‐dimethyl‐4H‐[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).
[1,2,4] Triazolo [3,4-b] [1,3,4]噻二嗪2a,2b,2c,2d,2e,2f和3,7-二甲基-4 H- [1,2,4在催化量的杂多酸存在下,通过α-氯乙腈和α-卤代酮的一锅环缩合反应合成了] triazino [3,4-b] [1,3,4]噻二嗪-6-one 4和费率。J.杂环化学。(2011)。