New Role of CO2 as a Selective Agent in Palladium-Catalyzed Reductive Ullmann Coupling with Zinc in Water

Carbon dioxide was found to promote the palladium-catalyzed zinc-mediated reductive Ullmann coupling of aryl halides. In the presence of carbon dioxide, Pd/C, and zinc, various aromatic halides including less reactive aromatic chlorides were coupled to give the corresponding homocoupling products in...

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Bibliographic Details
Published in:Journal of organic chemistry 2003-12, Vol.68 (25), p.9867-9869
Main Authors: Li, Jin-Heng, Xie, Ye-Xiang, Yin, Du-Lin
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
Noncondensed benzenic compounds
Organic chemistry
Preparations and properties
Online Access:Get full text
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Summary:Carbon dioxide was found to promote the palladium-catalyzed zinc-mediated reductive Ullmann coupling of aryl halides. In the presence of carbon dioxide, Pd/C, and zinc, various aromatic halides including less reactive aromatic chlorides were coupled to give the corresponding homocoupling products in good yields.
ISSN:0022-3263
1520-6904
DOI:10.1021/jo0349835