Synthesis of Indolines by Palladium-Catalyzed Intermolecular Amination of Unactivated C(sp3 )-H Bonds

Organic Letters
Xueliang SunYanghui Zhang

Abstract

A new palladium-catalyzed C(sp3)-H amination reaction has been developed. 1-(tert-Butyl)-2-iodobenzene and its derivatives undergo palladium-catalyzed C-H activation to form palladacycles. The palladacycles are aminated with diaziridinone to form indolines as the final products. The reaction represents a new method for the synthesis of 3,3-disubstituted indolines, which are essential structural motifs in many bioactive compounds and pharmaceutical targets.

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