Nitrimino group

The use of a nitrimino group instead of a carbonyl group in the synthesis of enamines has been reported515 (equation 33). 

A1203) to the medically important 9< -fluoro-l 1-ketosteroids. The nitrimino group can be reduced to the nitramine or the 11-amine. ... 

Dagley and co-workers reported the synthesis of 2-nitrimino-5-nitrohexahydro-1,3,5-triazine (100) from the Mannich condensation of nitroguanidine (98), formaldehyde and t-butylamine, followed by nitrolysis of the t-butyl group of the resulting product, 2-nitrimino-5-fert-butylhexahydro-l,3,5-triazine (99). The triazine (100) has also been synthesized from the reaction of nitroguanidine and hexamine in aqueous hydrochloric acid, followed by nitration of the resulting product (97) with a solution of nitric acid in acetic anhydride. ... 

One synthetic approach is to synthesize nitrogen-rich compounds (N > 60 %), which also contain oxidizing groups (e.g. nitro — N02, nitrimino =N -N02, Fig. 9.6), in order to achieve the best possible oxygen balance (Q). This is important because in principal, it is always better to have the oxidizer and fuel combined in one molecule (in contrast to mixtures), because this generally results in superior... 

Fig. 9.6 Oxidizing groups which can facilitate a positive oxygen balance Nitro (a), Nitrato (b), Nitramino (c), Nitrimino (d).

If the NO] group replaces a H atom of an imino group, NH, to give N.NO], the deriv is called a nitrimino compd, but if the N.NO] is not attached through the double bond but joins two other groups through single bonds [as in CH] N(NO]) CH] ], the compd is still called nitramino-, as in cyclotrimethylene-trinitramine. Nitronitramino compds have... 

Nitrimino compounds containing =N-N02 should also be included in the group of compounds belonging to nitramines and nitramides. 

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