Method and apparatus for preparing aromatic hydrazo or diaminodi

Details Method and apparatus for preparing aromatic hydrazo or diaminodi Method and apparatus for preparing aromatic hydrazo or diaminodi

1980-06-04

1982-08-24

Edmundson, F.

Chemistry: electrical and wave energy

Processes and products

C25B 304

Patent

active

043459781

ABSTRACT:
A method and apparatus for preparing aromatic hydrazo compounds by electrochemical reduction of aromatic nitro compounds on a technical scale. The reaction is carried out continuously and in two steps, comprising a first step in which the aromatic nitro compounds are reduced to form the corresponding azoxy compounds, which are isolated, and a second step in which the azoxy compounds isolated are reduced to form the corresponding hydrazo compounds.

REFERENCES:
patent: 3645864 (1972-02-01), Lawson et al.
Rifi et al., Intro. To Organic Electrochem. pp. 182-189 pub. by Marcel Dekker, Inc. New York (1974).
Dey et al., J. Sci. Ind. Res., vol. 4, pp. 559-568 )1946).
McKee, et al., Trans. Electro Chem. Soc., vol. 68, pp. 329-373 (1935)..
Journal of the Electrochemical Society, vol. 108, No. 4, Apr. 1961, pp. 373-377, K. S. Udupa.
Journal of the Electrochemical Society, vol. 104, No. 8, Aug. 1957, pp. 497-503, Kiichiro Sugino.

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