Highly Diastereoselective Arylation of (<i>S</i>)-Mandelic Acid Enolate: Enantioselective Synthesis of Substituted (<i>R</i>)-3-Hydroxy-3-phenyloxindoles and (<i>R</i>)-Benzylic Acids and Synthesis of Nitrobenzophenones
作者:Santiago Barroso、Gonzalo Blay、Luz Cardona、Isabel Fernández、Begoña García、José R. Pedro
DOI:10.1021/jo0402069
日期:2004.10.1
leads directly to enantiomericallypure (R)-3-hydroxy-3-phenyloxindoles. On the other hand the basic hydrolysis of the dioxolanone moiety in all the arylation products (ortho and para) leads to enantiomericallypuresubstituted (R)-benzylic acids. The oxidative decarboxylation of these latter with oxygen as terminal oxidant in the presence of pivalaldehyde and the Co(III)-Me2opba complex as catalyst gives