Hydrogen Bond Directed Highly Regioselective Palladium-Catalyzed Allylic Substitution
作者:Gregory R. Cook、Hui Yu、S. Sankaranarayanan、P. Sathya Shanker
DOI:10.1021/ja028426w
日期:2003.4.1
The palladium-catalyzed allylicsubstitution of 5-vinyloxazolidinones and derivatives was investigated. Unusual and high regioselectivity for the branched product was observed. The regioselectivity was influenced by the type of substrate, the solvents, and the nucleophile. Imide-type nucleophiles were found to be directed to the internal carbon (branched:linear, 75:25 to >98:2), whereas sulfonamides