Diastereoselective anionic and radical conjugate addition on a chiral enone: a route to multichiral arrays
Abstract
1,4 Addition of several alkyl groups using cuprates and radicals on a conformationally biased chiral enone 3 derived from carbohydrate is described, showing essentially identical diastereoselection in anionic and radical processes and a dramatic influence of the alkyl group size on the sense of 1,2-asymmetric induction.