Kinetic resolution of 1,2-diols with D-camphorquinone; preparation of (R)-(chloromethyl)oxirane
Abstract
Acid-catalysed reaction of D-camphorquinone with racemic 1,2-diols (e.g. 3-chloropropane-1,2-diol)under kinetically controlled conditions yields a predominant diasteroisomeric acetal, that can be easily converted into an optically pure epoxide.