Synlett 2006(20): 3382-3388  
DOI: 10.1055/s-2006-956468
ACCOUNT
© Georg Thieme Verlag Stuttgart · New York

Regioselective Functionalization of Unreactive Carbon-Hydrogen Bonds

Olafs Daugulis*, Vladimir G. Zaitsev, Dmitry Shabashov, Quynh-Nhu Pham, Anna Lazareva
Department of Chemistry, University of Houston, Houston, TX 77204, USA
Fax: +1(713)7432709; e-Mail: olafs@uh.edu;
Further Information

Publication History

Received 16 March 2006
Publication Date:
08 December 2006 (online)

Abstract

A simple and general method for arylation of carbon-hydrogen bonds in compounds containing directing groups has been developed. Anilides, benzylamines, benzoic acids, 2-aryl and alkyl­pyridines can be arylated in ortho-positions by using a combination of substrate, aryl iodide, silver acetate and catalytic palladium acetate. The use of a pyridine-containing removable auxiliary ligand ­allows the arylation of β-positions in carboxylic acid derivatives and γ-positions in amine derivatives. Non-activated sp3 carbon-hydrogen bonds are also reactive. A mechanistically distinct method for the alkenylation of anilides has also been developed.

  • 1 Introduction

  • 2 Concept Development and Initial Results

  • 3 Expansion of Arylation Scope

  • 4 Conclusion and Outlook