Regioselective (site-selective) functionalisation of unsaturated halogenated nitrogen, oxygen and sulfur heterocycles by Pd-catalysed cross-couplings and direct arylation processes

Chemical Society Reviews Pub Date: 2007-04-27 DOI: 10.1039/B611177G

Abstract

This tutorial review focuses on several practical synthetic transformations utilising palladium catalysis that facilitate the synthesis of functionalised unsaturated heterocycles in a regioselective (site-selective) manner. Cross-couplings of electron-deficient, electron-neutral and electron-rich unsaturated halogenated heterocycles with various organometallic reagents, and other types of nucleophiles, are detailed. Direct arylation of electron-rich unsaturated heterocyclic compounds by C–H functionalisation is also presented.

Graphical abstract: Regioselective (site-selective) functionalisation of unsaturated halogenated nitrogen, oxygen and sulfur heterocycles by Pd-catalysed cross-couplings and direct arylation processes
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