- PROCESS FOR PREPARING A 1,2-ETHYLENEDIAMINE OR 1,2-PROPYLENEDIAMINE
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The present invention generally relates to a process for preparing a 1,2-ethylenediamine; 1,2-propylenediamine; or a mixture thereof by way of a catalyzed reductive amination reaction employing hydrogen, a reductive amination catalyst, (C3-C40)polyhydric alcohol having at least three hydroxy groups on consecutive carbon atoms thereof, and primary amine, the catalyzed reductive amination reaction employing reaction conditions that are effective for reductively aminating at least two of the hydroxy groups of the (C3-C40)polyhydric alcohol and reductively eliminating at least one other of the hydroxy groups of the (C3-C40)polyhydric alcohol in such a way so as to give a 1,2-ethylenediamine; 1,2-propylenediamine; or a mixture thereof.
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Page/Page column 5-6
(2011/05/03)
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- Polyfunctionalized N-Tensides. VII. Substitution and Elimination in the Reaction of 1,2-Dihalogenoalkanes with Amines
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1,2-Dichloroalkanes, 1,2-Dibromoalkanes and mixtures of 1-bromo-2-chloroalkanes and 1-chloro-2-bromoalkanes react with primary or secondary amines and give both elimination and substitution products, often in a nearly 1:1 proportion.The elimination products are the cis and trans-1-halo-1-alkenes, the 2-halo-1-alkenes, the 1,3- and 2,4-dienes and the 1-alkenes.The main substitution products are the 1,2-bis-aminoalkanes.Physical dates, 1H-n.m.r.-spectra,surface tension values and CMC-dates are given.
- Beger, J.,Meerbote, E.
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