gatterman_1937.pdf
Azoxybenzenefrom phenylhydroxylamine and nitrosobenzene.—
Phenylhydroxylamine (1 g.) is added to a solution of 1 g.
of nitrosobenzene in 10 c.c. of alcohol. The mixture is shaken
while a few drops of concentrated potassium hydroxide solution
(1 : 1) are added, and is then wanned on the water bath for a few
minutes. The yellowish-red solution thus formed deposits yellow
crystals of the reaction-product when cooled and rubbed with a
glass rod. Since azoxybenzene melts at 36°, it has a great tendency
to separate from a supersaturated solution in the form of an oil.
By recrystallisation from a little alcohol or from petrol ether (retain
a few crystals for inoculation) the compound is obtained as a pale
yellow or almost colourless solid.
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