Merging Regiodivergent Catalysis with Atom‐Economical Radical Arylation |
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Authors: | Felix Mühlhaus Hendrik Weißbarth Tobias Dahmen Gregor Schnakenburg Andreas Gansuer |
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Institution: | Felix Mühlhaus,Hendrik Weißbarth,Tobias Dahmen,Gregor Schnakenburg,Andreas Gansäuer |
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Abstract: | A titanocene‐catalyzed regiodivergent radical arylation is described that allows access to either enantiomerically pure tetrahydroquinolines or indolines from a common starting material. The regioselectivity of epoxide opening that results in the high selectivity of heterocycle formation is controlled by two factors, the absolute configuration of the enantiopure ligands of the (C5H4R)2TiX2 catalyst and the inorganic ligand X (X=Cl, OTs). The overall reaction is atom‐economical and constitutes a radical Friedel–Crafts alkylation. |
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Keywords: | Arylierung Indolin Regiodivergente Synthese Tetrahydrochinolin Titanocen |
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