A DFT exploration of the enantioselective rearrangement of cyclohexene oxide to cyclohexenol

In this paper, we present computational results for the (1S,3R,4R)-3-(pyrrolidinyl)-methyl-2-azabicyclo[2.2.1]heptane mediated rearrangement of cyclohexene oxide. The results nicely explain the differences in enantioselectivities between catalytic and stoichiometric mode between different ligands, and provides a rational for the identification of non-stereospecific background reactions as the major cause of decreased enantioselectivity in catalytic reactions for sterically hindered diamines.