Preparation of tetramethylethylenediamine

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

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C07C20900

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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; Dec. 15,(1971); pp. 6831-6836.
German Ref: Beilstein. vol. 1. p. 153.
Journal of the American Chemical Society; vol. 75. pp. 1478-1480 (1953).
Journal of the American Chemical Society-- vol. 76. pp. 956-959 (1954).

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