Neopentyl difluoroamino compounds for use in energetic formulations
AssigneeAerojet-General Corporation
InventorsThomas G. Archibald, Gerald E. Manser
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Abstract
This invention relates to novel neopentyl difluoroamino compounds which are useful as plasticizers and oxidizers in energetic formulations, such as propellants, explosives, and gasifiers. These neopentyl difluoroamino compounds can be prepared either: (1) by the direct fluorination of amine derivatives containing energetic pendant groups; or (2) by first preparing NF.sub.2 -derivatives and then substituting these derivatives with energetic pendant groups. In particular, mono- and bis-(difluoroaminomethyl) oxetanes are synthesized and further reacted to yield the corresponding dinitrate esters. It has been discovered that these NF.sub.2 -dinitrate esters are very useful as energetic plasticizers in high-energy formulations.
Claims10
A compound having the formula ##STR11## in which either:
- R.sup.1, R.sup.2 and R.sup.3 are members independently selected from the group consisting of H, lower alkyl, NF.sub.2, ONO.sub.2, NO.sub.2, N.sub.3 and N(R.sup.4)NO.sub.2 where R.sup.4 is H or a lower alkyl;
- or:
- R.sup.1 and R.sup.2 are combined as a single divalent radical which is a member selected from the group consisting of --N(NO.sub.2)--and --N(NO.sub.2)--CH.sub.2 --N(NO.sub.2)--;
- and
- R.sup.3 is a member selected from the group consisting of NF.sub.2, ONO.sub.2, NO.sub.2 and N.sub.3.
A process for the preparation of a compound having the formula ##STR12## in which R.sup.1 is a member selected from the group consisting of H, lower alky, NF.sub.2, ONO.sub.2, NO.sub.2, N.sub.3, N(R.sup.4)NO.sub.2, where R.sup.4 is H or a lower alkyl;
- R.sup.2 is ONO.sub.2 ;
- and R.sup.3 is ONO.sub.2, said process comprising:
- (a) combining a solution of a compound having the formula ##STR13## in which R.sup.1 is a member selected from the group consisting of H, lower alkyl, NF.sub.2, ONO.sub.2, NO.sub.2, N.sub.3, N(R.sup.2)NO.sub.2, where R.sup.2 is H or a lower alkyl, with nitric acid to form a product mixture;
- and
- (b) recovering compound II from said product mixture.
Dependencies are inferred from the claim text.