Synthesis of 6,8-substituted derivatives of imidazo[5,1-c][1,2,4]triazines and 1,4-dihydroimidazo[5,1-c][1,2,4]triazin-4-ones / Bezmaternykh M.A., Mokrushin V.S., Pospelova T.A., El'tsov O.S. // Chemistry of Heterocyclic Compounds. - 1998. - V. 34, l. 6. - P. 702-711.

ISSN:
00093122
Type:
Article
Abstract:
The cyclization of imidazolylhydrazines, synthesized from 5-diazoimidazoles and cyanoacetic acid derivatives, to 4-aminoimidazo[5,1-c][1,2,4]triazines and imidazo[5,1-c][1,2,4]triazin-4-ones has been studied. It was established that electron-withdrawing substituents at position 4 of the imidazole ring had a weak effect on the cyclization process. On the other hand, electron-donating substituents at positions 4 or 2 of this ring inhibited and in some cases completely prevented the formation of bicyclic products. ©1998 Plenum Publishing Corporation.
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Affiliations Urals State Technical University (UPI), Ekaterinburg 620002, Russian Federation
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Correspondence Address Bezmaternykh, M.A.; Urals State Technical University (UPI), Ekaterinburg 620002, Russian Federation
CODEN CHCCA
Language of Original Document English
Abbreviated Source Title Chem. Heterocycl. Compd.
Source Scopus