Stereoselective 6-<i>Exo</i> Cyclization of Amidyl Radicals. An Experimental and Theoretical Study
作者:Shunjun Zhuang、Kun Liu、Chaozhong Li
DOI:10.1021/jo2014406
日期:2011.10.7
Unsaturated primary amidyl radicals of Z-configurations underwent efficient chemo- and stereoselective 6-exo cyclization reactions via chair-conformational transition states, leading to the predominant formations of 3,6-trans, 4,6-cis, or 5,6-trans substituted δ-lactams.
Z-构型的不饱和伯酰胺基基团通过椅子构象过渡态进行了有效的化学和立体选择性6- exo环化反应,导致主要形成3,6-反式,4,6-顺式或5,6-反式取代的δ-内酰胺