论文信息 - Synthesis of 1- and 2-Piperidinophenazine Derivatives

Synthesis of 1- and 2-Piperidinophenazine Derivatives

A number of new piperidinophenazines have been prepared by the reactions of various halogenophenazines and their oxides, including several new compounds, with piperidine. The halogenactivating effect of the oxide groups in 1- or 2-halogenophenazine oxides, which had previously been known, was also observed in the present piperidination. It has been found that 1-chlorophenazine was considerably less reactive than 2-chlorophenazine in the piperidination, that but the 5-oxide group in 1-chlorophenazine-5-oxide enhanced the reactivity of chlorine.

K. Katagiri | H. Endo | M. Tada

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