Department of Organic Chemistry, The Arrhenius Laboratory, Stockholm University, 106 91 Stockholm (Sweden).
Abstract:
A regiospecific, highly chemo-, diastereo-, and enantioselective one-pot catalytic cascade synthesis of cycloheptane derivatives is presented. In this chiral-amine-catalyzed asymmetric process, six new bonds and five new stereocenters were formed with excellent stereocontrol (>25:1 d.r. and 98- >99 ee).