Controlled couplings of quinone monoacetals using reusable polystyrene-anchored specific proton catalyst |
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| Authors: | Toshifumi Dohi Yinjun Hu Tohru Kamitanaka Yasuyuki Kita |
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| Institution: | College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-8577, Japan |
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| Abstract: | 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. |
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