Stereospecific
<i>cis-</i>
and
<i>trans</i>
-ring fusions arising from common intermediates
作者:Steven D. Townsend、Audrey G. Ross、Kai Liu、Samuel J. Danishefsky
DOI:10.1073/pnas.1407613111
日期:2014.6.3
Highly concise and stereospecific routes to cis and trans fusion, carrying various functionality at one of the bridgehead carbons, have been accomplished.
高度简洁和立体定向的顺式和反式融合路线,在桥头碳之一上携带各种功能,已经完成。
Halocycloalkenones as Diels–Alder Dienophiles. Applications to Generating Useful Structural Patterns
作者:Audrey G. Ross、Steven D. Townsend、Samuel J. Danishefsky
DOI:10.1021/jo302230m
日期:2013.1.4
are demonstrated to function as potent dienophiles in inter- and intramolecular Diels–Alder cycloadditions. We have found 2-brominated cycloalkenone dienophiles to be both highly endo selective and significantly more reactive than their nonhalogenated parent compounds. A method for the facile conversion of brominated cyclobutanone DA adducts to synthetically useful cyclopropyl functional handles is described
已证明卤代环烯酮在分子间和分子内 Diels-Alder 环加成反应中作为有效的亲二烯体发挥作用。我们发现 2-溴化环烯酮亲二烯体与它们的非卤化母体化合物相比具有高度的内选择性和显着更高的反应性。描述了一种将溴化环丁酮 DA 加合物轻松转化为合成有用的环丙基功能手柄的方法。