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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 28, 1998 - Issue 8
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Original Articles

Nuclear Monobromination of Alkyl Phenyl Ethers with NaClO2, NaBr, Mn(acac)3, and Moist Silica Gel in Aprotic Solvent

Masao Hirano Department of Applied Chemistry, Faculty of Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184, Japan
,
Hiroyuki Monobe Department of Applied Chemistry, Faculty of Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184, Japan
,
Shigetaka Yakabe Department of Applied Chemistry, Faculty of Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184, Japan
&
Takashi Morimoto Department of Applied Chemistry, Faculty of Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo, 184, Japan
Pages 1463-1470 | Received 14 Oct 1997, Published online: 22 Aug 2006
 
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Abstract

Nuclear monobromination of aromatic ethers can be achieved with a NaClO2/NaBr/Mn(acac)3 catalyst/silica gel system in dichloromethane in regioselective and high-yielding manner under mild conditions.

Notes

Surveys of structual properties of silica gels (Diddams, P. In Ref. 1 (d); Part I, Ch. 1, p. 5–8) and miscellaneous reactions with silica gel supported reagents (Ref. 1(e); Part VI) are available.

Butters, M. In Ref. 1(d); Part II, Ch.3, p. 76–78. Bram, G.; Loupy, A. In Ref. 1(e); Part VI, Ch. 20, p. 396-397.

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