Process for the preparation of heteroalicyclic N-nitro compounds

摘要

A method of preparing heteroalicyclic N-nitro compounds consists of the steps of reacting a heteroalicyclic N-monosilylated compound with dinitrogen pentoxide, preferably within an inert organic solvent and within the temperature range -10 DEG C to +10 DEG C, and separating the N-nitro product from the silyl nitrate co-product thus obtained. The nitrodesilylation method is capable of producing heteroalicyclic N-nitro compounds in high yields of typically 60 - 80%, and generates a silyl nitrate co-product which is relatively easy to remove by distillation in the presence of excess N2O5. Reagents containing two or more N-silyl groups per molecule can be employed yielding useful high explosive materials containing a corresponding number of N-nitro groups per molecule.