Abstract Chiral iridium complexes with bicyclic pyridine-based N, P ligands have emerged as efficient catalysts for the enantioselective hydrogenation of unfunctionalized trialkyl- substituted olefins. Optimization of the reaction conditions by variation of the solvent, pressure, and temperature led to enantiomeric excesses of up to 99%. Three pure alkenes,(E)-2-cyclohexyl-2-butene and (E)-and (Z)-3, 4-dimethyl-2-pentene were ...
