Abstract
It has been found that the
photochemical rearrangement of 2,2?- dimethyl-azoxybenzene to 2-hydroxy-6,2?-dimethylazobenzene
(major product) is accompanied by the formation of 4-hydroxy-2,2?- dimethylazobenzene
and 2-hydroxy-4,2?-dimethylazobenzene in small yields. α-2,4,6-Trimethylazoxybenzene
was shown not to isomerize when irradiated. It is concluded that the minor
photochemical products from 2,2?-dimethylazoxybenzene do not arise as a result
of migration of ring substituents. A reaction mechanism, which would account
for the minor products, is tentatively suggested.
Cited by
20 articles.
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