Synthesis of Trinitromethyl- and Dinitromethyl-Substituted Azoles Using Nitrate Salts in Sulfuric Acid
作者:Jean'ne Shreeve、Venugopal Thottempudi
DOI:10.1055/s-0031-1289736
日期:2012.4
Synthesis of trinitromethyl and dinitromethyl-substituted azoles employing a mild and efficient nitration method has been developed using a mixture of sulfuric acid and an inorganic nitrate salt XNO3, where X = NH4 +, Na+, K+. This methodology exhibits clear advantages over the more popular mixed acids nitration approach. Various nitro functionalities such as C-trinitromethyl, N-trinitromethyl, and
Reactions of 3-azido-1,2,4-triazole with electrophiles
作者:T. P. Kofman、K. N. Krasnov
DOI:10.1007/s11178-005-0074-5
日期:2004.11
Alkylation of 3-azido-1,2,4-triazole with oxiranes, bromoacetone, and methyl vinyl ketone furnished a mixture of N-substituted 3- and 5-azido-1,2,4-triazoles, 3-azido compounds prevailing. The same substrate subjected to heterylation with 3,5-dinitro-1,2,4-triazole derivatives reacted selectively at the N1 atom, and its bromination afforded 3-azido-5-bromo-1,2,4-triazole..