Process for the production of hydrazoaromatics using a multi-pha

Details Process for the production of hydrazoaromatics using a multi-pha Process for the production of hydrazoaromatics using a multi-pha

1982-07-15

1983-03-01

Hines, Robert V.

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

Organic compounds

Amino nitrogen containing

564311, C07C10904

Patent

active

043755593

ABSTRACT:
A process is disclosed for the catalytic hydrogenation of nitro-alkylbenzenes to hydrazo-alkylbenzenes wherein the reaction is conducted in a two phase solution wherein one phase constitutes an aqueous alkaline base and a second organic phase constitutes a solvent mixture having a first solvent component which is a solvent for the starting reactant and the alkaline base and a second solvent component which lowers the solvent mixture dielectric constant below 25 and which solvent component is a solvent for the reaction product.

REFERENCES:
patent: 2233129 (1941-02-01), Henke et al.
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patent: 3253010 (1966-05-01), Klauke et al.
patent: 3260750 (1966-07-01), Sayigh et al.
patent: 3694509 (1972-09-01), Rylander et al.
patent: 4217307 (1980-08-01), Planker et al.
patent: 4326078 (1982-04-01), Herrmann
Chemical Abstracts, vol. 16.
Translation of Brand and Steiner Published Paper of 1922.

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