(±)-1,1′-Binaphthalene-2,2′-diol-derived phosphoric diester: immobilization on polyethylene glycol support and application in the Pudovik reaction
作者:I. P. Beletskaya、L. S. Patrikeeva、F. Lamaty
DOI:10.1007/s11172-011-0364-8
日期:2011.11
Abstract(±)-1,1′-Binaphthalene-2,2′-diol (BINOL) was immobilized on polyethylene glycol (PEG) by means of triazole linkers, which were constructed by the [3+2] cycloaddition between azide and ethynyl fragments, preliminary incorporated into the molecules of these reactants. Treatment of these BINOL derivatives with phosphorus oxychloride leads to the corresponding PEG-immobilized 1,1′-binaphthalene-2,2′-diylphosphoric
摘要 (±)-1,1'-联萘-2,2'-二醇 (BINOL) 通过叠氮化物和乙炔基之间的 [3+2] 环加成作用构建的三唑连接体固定在聚乙二醇 (PEG) 上。片段,初步掺入这些反应物的分子中。用磷酰氯处理这些 BINOL 衍生物会产生相应的 PEG 固定化 1,1'-联萘-2,2'-二基磷酸。后者有效地催化 Pudovik 反应并且可以重复使用而不会损失催化活性。