Abstract
AbstractA highly efficient 2‐step method, where three nitro groups could be directly introduced upon pyrrole moiety in a single step, was developed as an environmentally benign process for the synthesis of N‐methyltetranitropyrrole (1) employing metal nitrate/conc. sulphuric acid as the nitrating reagent. This method resulted 1 in high purity having higher thermal stability (273 °C) along with reduced sensitivity (impact sensitivity >40 J; fricition sensitivity >360 N), which makes it a versatile high energy material. An over‐oxidized new product 1‐methyl‐3,3,4,4‐tetranitropyrrolidine‐2,5‐dione (4) was also isolated during optimization, whose energetic properties are similar to those of RDX.
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