Single and Double Suzuki−Miyaura Couplings with Symmetric Dihalobenzenes

David J. Sinclair and Michael S. Sherburn*
Research School of Chemistry, Australian National University, Canberra, ACT 0200, Australia sherburn@rsc.anu.edu.au
J. Org. Chem., 2005, 70 (9), pp 3730–3733
DOI: 10.1021/jo050105q
Publication Date (Web): March 24, 2005
Copyright © 2005 American Chemical Society
*

In papers with more than one author, the asterisk indicates the name of the author to whom inquiries about the paper should be addressed.

Abstract

Abstract Image

m- or p-diiodobenzene undergoes selective double coupling reactions with arylboronic acids and esters. Selectivity for double coupling over single coupling is remarkably strong:  even with a diiodobenzene:monoboronic acid ratio of 10:1, the products of double coupling are formed in good yields. Steric hindrance and electronic influences of the boronic acid or ester, and reaction conditions do not appear to impact significantly upon the outcome of the reaction. In contrast, m- and p-dibromobenzenes undergo single couplings with aryl boronic acids with high selectivity.

Tools

History

  • Published In Issue April 29, 2005
  • Received January 18, 2005

Recommend & Share

Related Content

Other ACS content by these authors: