Triphenylphosphite and ionic liquids: positive effects in the Heck cross-coupling reaction
作者:Juan C. Cárdenas、Luca Fadini、Cesar A. Sierra
DOI:10.1016/j.tetlet.2010.10.104
日期:2010.12
these characteristics it was asserted that a simple and inexpensive monodentate phosphite, such as triphenylphosphite, is a good and efficient ligand for the Heck cross-coupling reaction. The catalyst activity is improved by the use of room temperature ionic liquids, obtaining quantitative yields and TONs up to 33,000.
构型上纯的反式和高分子量对于聚对苯撑乙烯撑衍生物的光电性能很重要。作为获得具有这些特性的PPV的一种有前途的方法,有人断言简单而廉价的单齿亚磷酸酯(例如亚磷酸三苯酯)是Heck交叉偶联反应的良好而有效的配体。通过使用室温离子液体可提高催化剂活性,获得定量的收率和TONs最高可达33,000。