Efficient proline-catalyzed Michael additions of unmodified ketones to nitro olefins

Org Lett. 2001 Aug 9;3(16):2423-5. doi: 10.1021/ol015799d.

Abstract

[reaction: see text] Here we describe the proline-catalyzed Michael addition of unmodified ketones to nitro olefins. This novel reaction provides gamma-nitro ketones in modest enantioselectivity yet excellent yields.