Syntheses of Sterically Hindered Pyridinium Phenoxides as Model Compounds in Nonlinear Optics
作者:Vincent Diemer、Hélène Chaumeil、Albert Defoin、Alain Fort、Alex Boeglin、Christiane Carré
DOI:10.1002/ejoc.200600030
日期:2006.6
increase in the twist angle between the two aromatic rings leads to an enhancement of the NLO properties. In order to confirm this feature experimentally, it was necessary to prepare a series of new hindered pyridinium phenoxides. Their efficient syntheses by Suzuki cross-coupling reactions are described herein.(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
具有 π 共轭系统的非中心对称分子,其中包括苯酚吡啶等推挽分子,由于其非线性光学 (NLO) 特性,是一类有前途的新型光电子材料。建模研究表明,两个芳环之间扭曲角的增加导致 NLO 性能的增强。为了通过实验证实这一特征,有必要制备一系列新的受阻吡啶酚盐。本文描述了它们通过 Suzuki 交叉偶联反应的有效合成。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)