Chemical Communications 2012-05-28

Synthesis of phenothiazines via ligand-free CuI-catalyzed cascade C-S and C-N coupling of aryl ortho-dihalides and ortho-aminobenzenethiols.

Chuan Dai, Xiaofei Sun, Xingzhao Tu, Li Wu, Dan Zhan, Qingle Zeng

Index: Chem. Commun. (Camb.) 48(43) , 5367-9, (2012)

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Abstract

A ligand-free CuI-catalyzed cascade C-S and C-N cross coupling of (hetero)aryl ortho-dihalides and ortho-aminobenzenethiols has been developed, and various phenothiazines were synthesized with excellent regioselectivity. A possible mechanism is proposed for the cascade coupling.This journal is © The Royal Society of Chemistry 2012

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