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Inhibition of Homo-coupling of Arylboronic Acids in Ligand Free Pd(II)-Catalyzed Suzuki Reaction

✍ Scribed by Xiao-Chun Tao; Yue-Ping Zhang; Tian-Xiong He; Dong Shen

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
57 KB
Volume
25
Category
Article
ISSN
0256-7660

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✦ Synopsis

Abstract

A series of solvents were examined for the ligand free Pd(II)‐catalyzed Suzuki reaction of 4‐bromotoluene with phenylboronic acid. It was found that the PdCl~2~/i‐PrOH system could efficiently inhibit the homo‐coupling of phenylboronic acid and give a cross‐coupling product in high yields. The substrates with a wide variety of functional groups were tolerated in the system. A possible mechanism for this system was proposed.

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