Synthesis and Characterization of Photoswitchable Lipids Containing Hemithioindigo Chromophores
作者:Keetah Eggers、Thomas M. Fyles、Pedro J. Montoya-Pelaez
DOI:10.1021/jo0056848
日期:2001.5.1
chromophore as part of the fatty acid is described. Heck reaction of bromophenyl thioacetate esters with acrylonitrile, followed by reduction, ester hydrolysis, and Friedel--Craft acylation--cyclization gave a substituted thioindoxyl that condensed with an alkoxy benzaldehyde to produce the hemithioindigo. "Solventless" nitrile hydrolysis followed by mixed anhydride coupling of the acid with glycerophosphocholine
描述了包含半硫靛蓝发色团作为脂肪酸一部分的四种脂质的合成。溴代苯硫基乙酸酯与丙烯腈的Heck反应,然后还原,酯水解和Friedel-Craft酰化-环化生成取代的硫代吲哚酚,然后与烷氧基苯甲醛缩合生成半硫靛蓝。“无溶剂”腈水解,然后将酸与甘油磷酸胆碱混合酸酐偶联,生成带有两个半硫靛蓝生色团的脂质。研究了各种半硫靛蓝衍生物的光化学,以确认在均相有机溶液和双分子层膜中预期的光异构化。紫外可见光谱的特征变化与完全可逆的Z-E光异构化一致。