Copper-Catalyzed C-N Coupling Reactions of Nitrogen-Rich Compounds - Reaction of Iodofurazans with s-Tetrazinylamines
作者:Aleksei B. Sheremetev、Nadezhda V. Palysaeva、Marina I. Struchkova、Kyrill Yu. Suponitsky、Mikhail Yu. Antipin
DOI:10.1002/ejoc.201101732
日期:2012.4
Access to unsymmetrical secondary dihetarylamines through the Cu(OAc)2/2-acetylcyclohexanone catalyzed cross-coupling of s-tetrazinylamines with iodofurazans has been developed. The reaction displays good functional group tolerance, involving nitro, azido, and azo groups, which are critical for the construction of energetic materials. Both 3,6-disubstituted and annelated s-tetrazines react readily
A Direct Approach to a 6-Hetarylamino[1,2,4]triazolo[4,3-<i>b</i>][1,2,4,5]tetrazine Library
作者:Nadezhda V. Palysaeva、Katerina P. Kumpan、Marina I. Struchkova、Igor L. Dalinger、Aleksandr V. Kormanov、Nataly S. Aleksandrova、Victor M. Chernyshev、Dmitrii F. Pyreu、Kyrill Yu. Suponitsky、Aleksei B. Sheremetev
DOI:10.1021/ol403308h
日期:2014.1.17
The synthesis of 6-hetarylamino[1,2,4]triazolo[4,3-b][1,2,4,5]tetrazines is reported. The functionalized secondary amines were constructed via a K2CO3-mediated SNAr reaction of weakly basic hetarylamines with 3-(3,5-dimethylpyrazol-1-yl)[1,2,4]triazolo[4,3-b][1,2,4,5]tetrazines, which allowed displacement 3,5-dimethylpyrazolyl leaving group. Significantly, the reaction exhibited a broad substrate scope and proceeded in good yields.