Modulating the Lewis acidity of boron using a photoswitch

被引：73

作者：

Lemieux, Vincent ^{[1
]}

Spantulescu, M. Daniel ^{[1
]}

Baldridge, Kim K. ^{[2
]}

Branda, Neil R. ^{[1
]}

机构：

[1] Simon Fraser Univ, Dept Chem, LABS 4D, Burnaby, BC V5A 1S6, Canada

[2] Univ Zurich, Inst Organ Chem, CH-8050 Zurich, Switzerland

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 27期

基金：

加拿大自然科学与工程研究理事会;

关键词：

boron; dithienylethenes; Lewis acids; molecular switches; photochromism;

D O I：

10.1002/anie.200800869

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented). Light turns the Lewis acid on: The Lewis acidity of a boron atom integrated into a cyclic dithienylethene photoswitch is modulated by light: 1a has low Lewis acidity since the p orbital of the boron center is partially occupied by delocalized π electrons, whereas the rearrangement of the p electrons in 1b reduces the electron density at the boron center and turns the Lewis acid "on". © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：5034 / 5037

页数：4

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