ChemInform Abstract: A New Enantioselective Approach to the Bicyclo(4.4.0)decane and Bicyclo(4.3.0)nonane Systems.

Abstract

Addition of zinc reagents (II) or (VII) to the silylketone (I) or Diels‐Alder reaction of the latter with dienes (X) or (XII) gives rise to the formation of a series of title compounds, e.g. (IV), (V), (IX), (XI) and (XIII) with high stereoselectivity.