GB190115706A - Improved Process for Reducing Nitro-, Azoxy-, Azo-, and Hydrazo-compounds. - Google Patents

Improved Process for Reducing Nitro-, Azoxy-, Azo-, and Hydrazo-compounds.

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Publication number
GB190115706A
GB190115706A GB190115706DA GB190115706A GB 190115706 A GB190115706 A GB 190115706A GB 190115706D A GB190115706D A GB 190115706DA GB 190115706 A GB190115706 A GB 190115706A
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GB
United Kingdom
Prior art keywords
compounds
reduced
azoxy
azo
hydrazo
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
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Inventor
Ridley James Urquhart
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Individual
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Individual
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Publication date
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Publication of GB190115706A publication Critical patent/GB190115706A/en
Expired legal-status Critical Current

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Abstract

15,706. Urquhart, R. J., [Chemische Fabriken vorm. Wieler-ter Meer]. Aug. 3. Azoxy, azo, and hydrazo compounds and amines are produced successively from nitro compounds, or either of these compounds is produced from one of the corresponding more highly oxidized compounds, by heating such compounds with iron and an alkali, such as caustic soda, in a vessel fitted with a stirring and cooling apparatus. Examples are given in which o-nitrotoluene is reduced to azoxytoluene, o-nitroanisol is reduced to o-azoanisol, p-nitroacetanilide is reduced to p-phenylenediamine, and amidoazobenzene is reduced to p-phenylenediamine and aniline. An example is also given in which nitrobenzene is reduced to azoxybenzene, azobenzene, hydrazobenzene, and aniline, successively, by successive additions of suitable quantities of the reducing-agent, the progress of the reaction being checked by observations of the solidifying point of the products.
GB190115706D 1901-08-03 1901-08-03 Improved Process for Reducing Nitro-, Azoxy-, Azo-, and Hydrazo-compounds. Expired GB190115706A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190115706T 1901-08-03

Publications (1)

Publication Number Publication Date
GB190115706A true GB190115706A (en) 1901-09-21

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Application Number Title Priority Date Filing Date
GB190115706D Expired GB190115706A (en) 1901-08-03 1901-08-03 Improved Process for Reducing Nitro-, Azoxy-, Azo-, and Hydrazo-compounds.

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GB (1) GB190115706A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473802A (en) * 1949-06-21 Preparation of
US2744935A (en) * 1951-12-17 1956-05-08 Ciba Ltd Process for the manufacture of hydrazobenzenes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473802A (en) * 1949-06-21 Preparation of
US2744935A (en) * 1951-12-17 1956-05-08 Ciba Ltd Process for the manufacture of hydrazobenzenes

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