first time with arylboronicacids as nucleophiles. This transition‐metal‐free coupling between chiral α‐aryl‐α‐mesylated acetamides and arylboronicacids provided access to a series of chiral α,α‐diaryl acetamides with excellent enantioselectivity and moderate to good yields. The CONH functionality proved to be crucial for bridging the reactants and promoting the reaction. Efficient syntheses of a cannabinoid
Modular Evolution of a Chiral Auxiliary for the 1,3-Dipolar Cycloaddition of Isomünchnones with Vinyl Ethers
作者:Sergey N. Savinov、David J. Austin
DOI:10.1021/ol017263y
日期:2002.5.1
[reaction: see text]. The 1,3-dipolarcycloaddition reaction has long been recognized as a powerful methodology in organic synthesis. More recently, this reaction has become a popular manifold for the construction of chemical diversity. Herein, we report the development of a chiral template for the facially selective cycloaddition of isomünchnones, a common class of 1,3-dipoles. The modular format