Enantiospecific generation of anti-aldol adducts via conjugate addition to 5-methylene-1,3-dioxan-4-ones
作者:Michael Piber、James W. Leahy
DOI:10.1016/s0040-4039(98)00183-x
日期:1998.4
Michael additions to the exocyclic olefins of optically pure dioxanones (prepared via the asymmetric Baylis-Hillman reaction) are studied. The products can be obtained in excellent diastereoselectivity to ultimately provide products equivalent to those derived via anti aldol additions. Quaternary centers can also be created with good selectivity via this protocol.
The asymmetric Baylis-Hillman reaction as a template in organic synthesis
作者:Linda Joy Brzezinski、Sara Rafel、James W. Leahy
DOI:10.1016/s0040-4020(97)01025-9
日期:1997.12
The Baylis-Hillmanreaction of camphor-based acrylates has been demonstrated to result in the formation of products with high optical purity. A model that explains these results and the use of these products in the formation of anti aldol adducts is discussed.