Intermolecular hydrogen bonding modulates the hydrogen-atom donating ability of hydroquinones

被引：20

作者：

Amorati, Riccardo ^{[1
]}

Franchi, Paola ^{[1
]}

Pedulli, Gian Franco ^{[1
]}

机构：

[1] Univ Bologna, Dipartimento Chim Organ A Mangini, I-40126 Bologna, Italy

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2007年 / 46卷 / 33期

关键词：

EPR spectroscopy; hydrogen bonds; hydrogen transfer; quinones; radical reactions;

D O I：

10.1002/anie.200701957

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Radical measures: Kinetic measurements on peroxyl radicals showed that the reactivity of a 1,4-dihydroxybenzene is enhanced by the selective interaction of one OH group with a cosolvent molecule (see scheme; S = DMSO, 2.3 mn). The preferential solvation of the radical over the parent phenol causes a decrease in the bond dissociation enthalpy of the free OH group and an increase in the rate constant for abstraction of a hydrogen atom. (Chemical Equation Presented) © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：6336 / 6338

页数：3

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