Synthesis of 1-nitrazaalkyl-5-(1,1,1-trinitro-3-nitrazapropyl)tetrazoles

Alkylation of 5-aminotetrazole with chloromethylnitrazaalkanes led to 1-nitrazaalkyl derivatives, which reacted with formalin solution and sodium carbonate followed by treatment with nitroform to form 1-nitrazaalkyl-5-(1,1,1-trinitro-3-azapropyl)tetrazoles. The latter were nitrated for the first time to obtain tetrazoles containing both trinitromethyl and nitrazaalkyl groups.