Inverse electron-demand aza-[4+2] cycloaddition reactions of allenamides
作者:Craig R. Berry、Richard P. Hsung
DOI:10.1016/j.tet.2004.05.117
日期:2004.8
An inverse electron-demand aza-[4+2] cycloaddition reaction of allenamides with 1-azadiene is described here. Effects of solvents on diastereoselectivity along with synthetic scopes and mechanisticinsights are illustrated. Despite some synthetic limitations, this aza-[4+2] cycloaddition does provide a useful template for the synthesis of aza-glycoside related heterocycles.
A general solution to implementing the 4.pi. participation of 1-aza-1,3-butadienes in Diels-Alder reactions: inverse electron demand Diels-Alder reactions of .alpha..beta.-unsaturated N-benzenesulfonyl imines
作者:Dale L. Boger、Annette M. Kasper
DOI:10.1021/ja00186a067
日期:1989.2
Boger, Dale L.; Corbett, Wendy L.; Curran, Timothy T., Journal of the American Chemical Society, 1991, vol. 113, # 5, p. 1713 - 1729