Cross-coupling of polychlorobenzenes with phenylboronic acid in the presence of [Pd]-imidazolium salts as catalytic systems

AS Burukin, AA Vasil'Ev, NL Merkulova…

Index: Burukin; Vasil'Ev; Merkulova; Chizhov; Mistryukov; Zlotin Russian Chemical Bulletin, 2007 , vol. 56, # 7 p. 1467 - 1469

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Citation Number: 3

Abstract

Abstract The reactions of di-, tetra-, and hexachlorobenzenes with phenylboronic acid in the presence of [Pd]-imidazolium salt-base as catalytic systems afford cross-coupling products in moderate yields. The highest conversions are attained when imidazolium salts bearing bulky aromatic substituents are used and the reaction is carried out in the presence of alkali alkoxides containing H α atoms. Cross-coupling is accompanied by hydrodechlorination ...