Synthesis of Energetic Prepolymers.

Abstract : A new route to the synthesis of nitrooxetanes was explored. The final ring-closure step to yield 3-methyl-3-nitrooxetane has not yet been carried out successfully. Precursors to the synthesis of 3,3-dinitro-oxetane have been prepared. 3-Azidomethyl-3-methyloxetane has been prepared by a new synthetic route that should be useful in the event of a scale-up. Polymers derived from 3-(2,3-diazidopropoxymethyl)-3-methyl oxetane and 2-azidomethyl-3-(2,3-diazidopropoxy-methyl)-3-methyl oxetane and 3-azidomethyl-3-(2,3-diazidopropoxymethyl)oxetane have been prepared and appear to have good low temperature and stability properties. (Author)