Konovaloff reaction

Konovaloff Reaction. A color test for primary or secondary nitro-compds. Samples are treated with Na hydroxide soln, the salt formed is extrd with w, and ether is added to this extr. Upon dropwise addition of ferric chloride, a red to reddish-brown color develops in the ether... 

The first examples of the conversion of nitroalkanes to carbonyl compounds were described in 1893 by Konovaloff, who was examining the reactivity of nitroalkanes obtained from nitration of alkanes with nitric acid.1 Konovaloff reported that treatment of 2-nitrohexane (3) with strong soda (NaOH) followed by reaction with Zn/HOAc afforded a mixture of methyl butyl ketone (4) and 2-aminohexane (5). Additionally, the reaction of the potassium salt of 2-phenylnitroethane with dilute aqueous acid provided mixtures of acetophenone and 2-phenylnitroethane. 

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See also in sourсe #XX -- [ , ]

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