Preparation of tetramethylethylenediamine

Details Preparation of tetramethylethylenediamine Preparation of tetramethylethylenediamine

1997-07-29

1998-09-22

Richter, Johann

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C20900

Patent

active

058115846

ABSTRACT:
Process for the production of TMEDA in high yield by reducing 2,3-dimethyl-2,3-dinitrobutane with hydrogen in the presence of a chromium promoted Raney cobalt catalyst. A solution of 2,3-dimethyl-2,3-dinitrobutane in a suitable solvent is fed to a reactor while avoiding the accumulation of 2,3-dimethyl-2,3-dinitrobutane in the reaction medium, such as by feeding it at a rate no greater than its rate of reaction with hydrogen. In a preferred embodiment, the resulting TMEDA is recovered by converting it to an amine salt by sparging carbon dioxide through the solution.

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Journal of the American Chemical Society-- vol. 76. pp. 956-959 (1954).

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