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Enantioselective hydrogenation of furans and benzofurans remains a challenging task. We report the hydrogenation of 2‐ and 3‐substituted furans by using iridium catalysts that bear bicyclic pyridine–phosphinite ligands. Excellent enantioselectivities and high conversions were obtained for monosubstituted furans with a 3‐alkyl or 3‐aryl group. Furans substituted at the 2‐position and 2,4‐disubstituted...
Enantioselective hydrogenation of furans and benzofurans remains a challenging task. In their Full paper on page 1482 ff., A. Pfaltz et al. report the hydrogenation of differently substituted furans and benzofurans by using iridium catalysts bearing bicyclic pyridine–phosphinite ligands. Excellent enantioselectivities and high conversions were obtained in this transformation. The asymmetric hydrogenation...
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