2-Methylenetetrahydropyrans: Efficient Partners in the Carbonyl Ene Reaction
作者:Guohua Liang、Dakin T. Sharum、Troy Lam、Nancy I. Totah
DOI:10.1021/ol402843s
日期:2013.12.6
The carbonyl ene reaction of 2-methylenetetrahydropyrans provides a rapid, high yielding route for the preparation of β-hydroxydihydropyrans under mild conditions. This process provides a new entry for the synthesis of 2-substituted tetrahydropyrans and for the direct introduction of oxygen heterocycles into molecular frameworks.