Intermolecular rhodium catalyzed hydroacylation of allenes: the regioselective synthesis of β,γ-unsaturated ketones
作者:Helen E. Randell-Sly、James D. Osborne、Robert L. Woodward、Gordon S. Currie、Michael C. Willis
DOI:10.1016/j.tet.2009.03.054
日期:2009.6
A variety of β-S-substituted aldehydes undergo efficient and regioselective rhodium catalyzed hydroacylation reactions with 1,3-disubstituted and 1,1,3-trisubstituted allenes, to deliver β,γ-unsaturated ketone products. Regioselectivites are controlled primarily by steric factors. The reactions are catalyzed by the complex [Rh(dppe)]ClO4.
多种β- S-取代的醛与1,3-二取代和1,1,3-三取代的烯类进行有效的区域选择性铑催化的加氢酰化反应,以生成β,γ-不饱和酮产物。区域选择性主要受空间因素控制。该反应由络合物[Rh(dppe)] ClO 4催化。