Ytterbium perfluorooctanesulfonates catalyzed synthesis of benzimidazole derivatives in fluorous solvents |
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| Authors: | Ming-Gui Shen |
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| Institution: | Chemical Engineering College, Nanjing University of Science & Technology, Nanjing 210094, China |
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| Abstract: | Catalytic condensation of o-phenylenediamine and aldehydes was accomplished using rare earth(III)perfluorooctane sulfonates (RE(OPf)3), RE = Sc, Y, La ∼ Lu) as catalysts in fluorous solvents. Ytterbium perfluorooctanesulfonates (Yb(OPf)3) catalyzes the high-efficient synthesis of benzimidazole derivatives in fluorous solvents. By simple separation, fluorous phase containing only catalyst can be reused several times. |
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| Keywords: | Benzimidazole derivatives Fluorous biphasic catalysis Rare earth(III)perfluorooctanesulfonates Perfluorocarbon |
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