Controlled couplings of quinone monoacetals using reusable polystyrene-anchored specific proton catalyst
作者:Toshifumi Dohi、Yinjun Hu、Tohru Kamitanaka、Yasuyuki Kita
DOI:10.1016/j.tet.2012.07.089
日期:2012.10
Controlled couplings of quinone monoacetals 1 with soft nucelophiles have been achieved using a new and reusable perfluorobenzoic acid (PFBA) immobilized on polystyrene beads as an efficient polymer-anchored specific proton. Various advantages regarding the recovery, reusability, and reproducibility as well as the high chemoselectivity toward quinone monoacetals 1 have been determined as the key features of the cleaner systems with newly developed solid acid promoter for the reactions. (C) 2012 Elsevier Ltd. All rights reserved.