Synthesis of bis(ethylenedithio)tetrathiafulvalene (BEDT-TTF) derivatives functionalised with two, four or eight hydroxyl groups
作者:R. James Brown、Andrew C. Brooks、Jon-Paul Griffiths、Betrand Vital、Peter Day、John D. Wallis
DOI:10.1039/b709823e
日期:——
Short synthetic routes to a range of BEDT-TTF derivatives functionalised with two, four or eight hydroxyl groups are reported, of interest because of their potential for introducing hydrogen bonding between donor and anion into their radical cation salts. The cycloaddition of 1,3-dithiole-2,4,5-trithione with alkenes to construct 5,6-dihydro-1,3-dithiolo[4,5-b]1,4-dithiin-2-thiones is a key step, with
据报道,合成短程合成一系列用两个,四个或八个羟基官能化的BEDT-TTF衍生物的途径之所以引起人们的关注,是因为它们具有将供体和阴离子之间的氢键引入其自由基阳离子盐的潜力。1,3-二硫代2,4,5-三硫酮与烯烃的环加成反应以构建5,6-二氢-1,3-二硫代[4,5-b] 1,4-二硫代-2-硫酮是关键步骤,通过均相或异相偶联程序和O-脱保护完成合成。四(羟甲基)BEDT-TTF的单个非对映异构体的首次合成是顺式,反式产物,这是通过仔细选择O保护基团来促进均相和异偶合产物的分离而实现的。三硫酮与对映体1R,2R,5R,6R-双(O,O-异亚丙基)己-3-烯-1,2,5,的环化,