Download PDF
Synlett 2001; 2001(10): 1527-1530
DOI: 10.1055/s-2001-17488
letter
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.

Nickel-catalyzed Ullmann-type Coupling Reaction to Prepare Tetra-ortho-substituted Biaryls

Ran Hong* , Rob Hoen, Jing Zhang, Guo-qiang Lin
  • *Shanghai Institute of Organic Chemistry, CAS, 354 Fenglin Road, Shanghai 200032, P. R. China; E-mail: lingq@pub.sioc.ac.cn
Further Information

Publication History

Publication Date:
27 September 2001 (online)

  PDF Download  Permissions and Reprints All articles of this category

A nickel-catalyzed Ullmann-type reaction on the coupling of bis-ortho-substituted arylhalides to prepare tetra-ortho-biaryls was brought about in moderate to high yields. Bu4NI might function as an efficient bridging ligand to accelerate the formation of dinickel-center intermediate, which subsequently eliminates to desired coupling product.

nickel - Ullmann-type reaction - tetra-ortho-substituted biaryls - bridging ligand

      >