Accession Number:

ADD014366

Title:

Synthesis of Dimethylmethylene Dinitramine.

Descriptive Note:

Patent filed 1 Jul 82, patented 9 Oct 84,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1984-10-09

Pagination or Media Count:

5.0

Abstract:

This invention relates to propellants and more particularly to energetic nitramine plasticizers for propellants. One object of this invention is to provide an improved process for preparing 2,4-dinitro-2,4-diazapentane. Other objects of this invention are to provide a safer method of preparing 2,4-dinitro-2,4-diazapentane, to provide a more economical method of preparing 2,4-dinitro-2,4-diazapentane, and to provide a large-scale process for preparing 2,4-dinitro-2,4-diazapentane. These and other objects are accomplished by providing a process comprising the following steps in order 1 adding N,N-dimethylurea in an organic solvent e.g., methylene chloride to mixed acid which is maintained at a temperature which is above the freezing point of mixed acid up to 5 C to produce N,N-dimethyl-N,N-dinitrourea and then drowning the mixed acid solution in ice water 2 using an organic solvent to extract the N,N-dimethyl-N,N-dinitrourea from the mixed acid-water mixture 3 hydrolyzing the N,N-dimethyl-N,N-dinitrourea to form methylnitramine by adding the N,N-dimethyl-N,N-dinitrourea-organic solvent solution to water which is at a temperature of from 37 C to 100 C and 4 isolating the product methylnitramine. Keywords Patents, Evaporation, Reduction chemistry, Addition reactions. aw

Subject Categories:

  • Organic Chemistry
  • Industrial Chemistry and Chemical Processing
  • Ammunition and Explosives

Distribution Statement:

APPROVED FOR PUBLIC RELEASE