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Synthesis, characterization and catalytic activity of novel large network polystyrene-immobilized organic bases

机译:新型大网络聚苯乙烯固定有机碱的合成,表征和催化活性

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摘要

In view of searching for efficient polymeric supports for organic bases to be used in environmentally friendly reaction conditions, novel gel-type cross-linked polystyrenes functionalized with diethylamine and 1,5,7-triazabicyclo[4.4.0]dec-5-ene, have been prepared. The structural properties and morphology of these catalysts have been determined by extensive solid state NMR experiments, FTIR spectroscopy and SEM/TEM microscopy. SPACeR-supported bases were found to exhibit high catalytic activity in the epoxide ring opening by phenols. A range of beta-substituted alcohols have been readily and regioselectively synthesized.
机译:考虑到寻找在环境友好的反应条件下使用的有机碱的有效聚合物载体,新型的用二乙胺和1,5,7-三氮杂双环[4.4.0] dec-5-ene官能化的凝胶型交联聚苯乙烯,已经准备好了。这些催化剂的结构性质和形态已通过广泛的固态NMR实验,FTIR光谱和SEM / TEM显微镜确定。发现SPACeR负载的碱在酚类化合物的环氧开环中表现出高催化活性。已经容易地和区域选择性地合成了许多β-取代的醇。

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