Highly Efficient Organocatalytic Kinetic Resolution of Activated Nitroallylic Acetates with Aldehydes via Conjugate Addition−Elimination
作者:Raju Jannapu Reddy、Kwunmin Chen
DOI:10.1021/ol200133y
日期:2011.3.18
A novel, efficient, and unprecedented organocatalytic kineticresolution has been developed. For the first time, a variety of nitroallylicacetates 1a−i have been resolved with aldehydes in the presence of 2 (2.5 mol %) via conjugateaddition−elimination. The densely functionalized products 3a−o were obtained with excellent enantioselectivities (up to >99% ee), and unreacted substrates 1a−i were recovered