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A General Regioselective Synthesis of Alcohols by Cobalt‐Catalyzed Hydrogenation of Epoxides
Authors:Weiping Liu  Thomas Leischner  Wu Li  Kathrin Junge  Matthias Beller
Abstract:A straightforward methodology for the synthesis of anti‐Markovnikov‐type alcohols is presented. By using a specific cobalt triphos complex in the presence of Zn(OTf)2 as an additive, the hydrogenation of epoxides proceeds with high yields and selectivities. The described protocol shows a broad substrate scope, including multi‐substituted internal and terminal epoxides, as well as a good functional‐group tolerance. Various natural‐product derivatives, including steroids, terpenoids, and sesquiterpenoids, gave access to the corresponding alcohols in moderate‐to‐excellent yields.
Keywords:anti-Markovnikov  cobalt  epoxides  homogeneous catalysis  hydrogenation
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