Acetonylation of 5(3)-(1 H -tetrazol-1-yl)-3(5)-nitro-1 H -pyrazole
作者:Alexandr V. Kormanov、Tatyana K. Shkineva、Igor L. Dalinger
DOI:10.1016/j.mencom.2017.09.010
日期:2017.9
N-Acetonylation of 5(3)-(1H-tetrazol-1-yl)-3(5)-nitro-1H-pyrazole with bromoacetone in the presence of NaHCO3 at 60 °C gave, along with expected isomeric N-acetonyl derivatives, a tricyclic product of the intramolecular electrophilicattack at the carbon atom of the tetrazole cycle.
Synthesis of 1- and 5-(pyrazolyl)tetrazole amino and nitro derivatives
作者:Igor L. Dalinger、Alexandr V. Kormanov、Irina A. Vatsadze、Olga V. Serushkina、Tatyana K. Shkineva、Kyrill Yu. Suponitsky、Alla N. Pivkina、Aleksei B. Sheremetev
DOI:10.1007/s10593-017-2003-2
日期:2016.12
5-tetrazole substituent at position 3(5). All the possible isomeric C-mononitropyrazoles were synthesized. The reduction of these compounds gave the respective 3(5)-amino-5(3)-tetrazolylpyrazoles, which were nitrated to 3(5)-nitramino-4-nitro-5(3)-tetrazolylpyrazoles. The reaction of 1-(nitropyrazol-3(5)-yl)tetrazoles with hydroxylamine-O-sulfonic acid produced the respective N-amino derivatives.