| 摘要 |
A nitroamine is formed from an aliphatic amine reactant + a nitroalkane + an aldehyde with better conversion, and faster, if the aldehyde is added last, and gradually, so as not to form an alkanolamine intermediate with the aldehyde as in the prior art reactions. In particular, a diamine such as ethylene diamine (EDA) has the unique ability, even among diprimary amines, to react with nitroalkane, to form a salt intermediate to which is added an essentially solvent-free aldehyde such as paraformaldehyde to produce a reaction product consisting essentially of a mixture of (i) a mononitrodialkylenediamine with a disubstituted N-adjacent terminal C atom and (ii) a dinitrotrialkylenediamine with each N-adjacent terminal C atom being disubstituted; and the mixture is obtained in an yield of at least 90 mol %.
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