Catalytic Enantioselective α-Acylvinyl Anion Reactions of Silyloxyallenes
作者:Troy E. Reynolds、Karl A. Scheidt
DOI:10.1002/anie.200702818
日期:2007.10.15
Lewis Acid-Catalyzed Conjugate Additions of Silyloxyallenes: A Selective Solution to the Intermolecular Rauhut−Currier Problem
作者:Troy E. Reynolds、Michael S. Binkley、Karl A. Scheidt
DOI:10.1021/ol800745q
日期:2008.6.1
10 mol % Sc(OTf) 3. The reaction delivers intermolecularRauhut-Currier products in excellent yields and regioselectivities for a wide scope of substrates. Notably, the formal cross-coupling of two different alpha,beta-unsaturated carbonyl compounds (a cross Rauhut-Currierreaction) is achieved. Preliminary investigations have demonstrated good levels of enantioselectivity for the addition of a racemic