Unusual Expansion of the 1,2,4,5-Tetrazine Ring in [1,2,4]Triazolo[4,3-b][1,2,4,5]tetrazines Leading to [1,2,4,6]Tetrazepine Systems
作者:Ilya N. Ganebnykh、Svetlana G. Tolshchina、Rashida I. Ishmetova、Nina K. Ignatenko、Pavel A. Slepukhin、Gennady L. Rusinov、Valery N. Charushin
DOI:10.1002/ejoc.201001590
日期:2011.4
Expansion of the tetrazine ring has first been found to occur when [1,2,4]triazolo[4,3-b][1,2,4,5]tetrazines were allowed to react with CH-active compounds in acetonitrile in the presence of triethylamine to give the unexpected series of 8,9-dihydro-7H-[1,2,4]-triazolo[4,3-b][1,2,4,6]tetrazepine derivatives.
当[1,2,4]三唑并[4,3-b][1,2,4,5]四嗪与乙腈中的CH活性化合物反应时,首次发现四嗪环发生膨胀。三乙胺的存在得到了意想不到的 8,9-二氢-7H-[1,2,4]-三唑并[4,3-b][1,2,4,6]四氮杂衍生物系列。