synthesized from tetrakis-4-hydroxyphenylporphyrin 1 as the central building block by consecutive base-induced reactions with glycidol. The decorating units form a polar hydrogen-bonded shell around the sensitizer core which is proposed as the binding site for polar substrates in photocatalyzed oxygenation reactions. As substrate, the polarity-sensor mesitylol (5) was applied and the reaction constrained in
极性内消旋-tetraarylporphyrins 2 - 4从四-4- hydroxyphenylporphyrin合成1通过与
缩水甘油的连续碱诱导的反应的中心构建块。装饰单元在敏化剂核周围形成极性氢键合的壳,被提议作为光催化氧化反应中极性底物的结合位点。作为底物,应用极性传感器
均三甲苯酚(5)并将反应限制在聚
苯乙烯基质中。壳尺寸的增加导致烯
丙基氢过氧化物6的非对映选择性增加,因此清楚地证明了在单线态氧反应中壳诱导的底物立体选择性的概念。