Abstract
Abstract 1) Nine tolylazoanisoles, six dimethoxyazobenzenes, and six bromophenylazoanisoles have been synthesized by the reactions of Grignard reagents with zinc chloride double salts of diazonium compounds; thirteen of them are new compounds. 2) The ultraviolet and visible absorption spectra of the methoxyazobenzene derivatives have been measured, and some regularities of the absorption maxima have been observed in them.
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