Functionalized azo dyes by direct ullmann coupling

RD Miller, VY Lee, RJ Twieg

Index: Miller, R. D.; Lee, V. Y.; Twieg, R. J. Journal of the Chemical Society, Chemical Communications, 1995 , # 2 p. 245 - 246

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Abstract

A variety of thermally stable 4-(N, N-diarylamino)-4′-nitroazobenzene dyes can be produced by direct copper-mediated C–N bond formation on preformed amino substituted azo dyes, thus avoiding a troublesome azo coupling step; the products are useful chromophores for high temperature nonlinear optical applications.