Acidic Three-Liquid-Phase Microemulsion Systems Based on Balanced Catalytic Surfactant for Epoxidation and Sulfide Oxidation under Mild Conditions
作者:Marion Fressancourt-Collinet、Bing Hong、Loïc Leclercq、Paul. L. Alsters、Jean-Marie Aubry、Véronique Nardello-Rataj
DOI:10.1002/adsc.201200514
日期:2013.1.11
tungstate has been designed as a balanced catalytic surfactant to form acidic three-liquid-phase microemulsion systems at room temperature in the presence of water, a non-chlorinated solvent and dimethyldioctylammonium salts (hydrogen sulfate and dihydrogen phosphate). The triphasic system is efficient for the oxidation of olefins, sulfides and thiophenes under mild conditions. Moreover, the recovery and
十二烷基二甲基钨酸铵已被设计为一种平衡的催化表面活性剂,可在室温下在水,非氯化溶剂和二甲基二辛基铵盐(硫酸氢盐和磷酸二氢盐)存在下形成酸性三相液相微乳液体系。三相系统在温和条件下对于烯烃,硫化物和噻吩的氧化非常有效。此外,催化剂的回收和可再利用性,产物和催化剂在两个不同相中的直接分离以及可能使用的环境友好溶剂(例如乙酸叔丁酯)使该系统对于涉及过氧化氢的催化氧化反应特别有吸引力。在酸性或中性条件下作为主要氧化剂。