Efficient method for the preparation of aromatic bromides and iodides by ferrocenium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate-catalyzed halogenation with bromine and iodine monochloride

被引：5

作者：

Kitagawa, H ^{[1
]}

Shibata, T ^{[1
]}

Matsuo, J ^{[1
]}

Mukaiyama, T ^{[1
]}

机构：

[1] Tokyo Univ Sci, Fac Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, Japan

来源：

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN | 2002年 / 75卷 / 02期

关键词：

D O I：

10.1246/bcsj.75.339

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Direct iodination and bromination of various aromatic compounds with 1.1-2.0 molar amounts of iodine monochloride (ICI) and 1.1-3.0 molar amounts of bromine proceeded smoothly to afford the corresponding aromatic iodides and bromides, respectively, in good to excellent yields by using 0.05 molar amount of ferrocenium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate, Cp2FeB[3,5-(CF3)(2)CH3](4) (1), in the presence of ZnO. lodination of toluene in the coexistence of 0.5 molar amount of DDQ also proceeded to give iodotoluenes in high yield.

引用

页码：339 / 345

页数：7

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