Cyclization of (1,2,4,5-tetrazin-3-yl)hydrazones to 3,7-dihydro-1,2,4-triazolo[4,3-b]-1,2,4,5-tetrazines

被引：0
|
作者：
S. G. Tolshchina
A. G. Vyakhireva
N. K. Ignatenko
R. I. Ishmetova
I. N. Ganebnykh
P. A. Slepukhin
G. L. Rusinov
机构：
[1] Ural Branch of the Russian Academy of Sciences,I. Ya. Postovsky Institute of Organic Synthesis
来源：
Russian Chemical Bulletin | 2009年 / 58卷
关键词：
3,7-dihydro-1,2,4-triazolo[4,3-; ]-1,2,4,5-tetrazines; 3,6-disubstituted 1,2,4,5-tetrazines; hydrazones; cyclization; ring-chain isomerism; nucleophilic substitution; alkylation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The intramolecular cyclization of (6-R-1,2,4,5-tetrazin-3-yl)hydrazones of ketones (R is 3,5-dimethylpyrazol-1-yl, 4-methylimidazol-1-yl, or 2-alkylidenehydrazino) giving rise to the previously unknown 3,7-dihydro-1,2,4-triazolo[4,3-b]-1,2,4,5-tetrazines, including spiro compounds, was studied. The reactivity and the yields of the reaction products depend on the structure of the alkylidene fragment and the nature of the substituent in the tetrazine ring.
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页码：1281 / 1290
页数：9
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