Synlett 2015; 26(17): 2385-2388
DOI: 10.1055/s-0035-1560712
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© Georg Thieme Verlag Stuttgart · New York

Dimerization of Aryl Sulfonates by in situ Generated Nickel(0)

Jacques Maddaluno
Laboratoire COBRA – CNRS UMR 6014 & FR 3038, Université de Rouen INSA de Rouen, 76821 Mt St Aignan Cedex, France   Email: muriel.durandetti@univ-rouen.fr
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Muriel Durandetti*
Laboratoire COBRA – CNRS UMR 6014 & FR 3038, Université de Rouen INSA de Rouen, 76821 Mt St Aignan Cedex, France   Email: muriel.durandetti@univ-rouen.fr
› Author Affiliations
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Publication History

Received: 16 September 2015

Accepted after revision: 24 September 2015

Publication Date:
29 September 2015 (online)


This paper is dedicated to the memory of Professor Manfred Schlosser.

Abstract

A mild and user-friendly nickel-catalyzed method for the reductive homocoupling of aromatic tosylates is presented. The reaction proceeds between room temperature and 60 °C, with stable substrates (ArOTs) easily prepared from inexpensive and commercially available phenols or naphthols. It relies on a catalytic amount (10 mol%) of a robust catalyst (NiBr2bipy) that does not require the preparation of sensitive organometallic intermediates. Yields are good to excellent.

Supporting Information