作者:Hironori Miyauchi、Shunsuke Chiba、Koji Fukamizu、Kaori Ando、Koichi Narasaka
DOI:10.1016/j.tet.2007.02.116
日期:2007.6
hetero- and carbocycles by intramolecular nucleophilic substitution at the sp2 carbon centers. The density functional theory calculations suggest that the cyclization proceeds through SN2-type substitution (the in-plane vinylic nucleophilic substitution, SNVσ), when vinyl halides are substituted with oxygen, nitrogen, and carbon nucleophiles. The substitution with sulfur nucleophiles, in contrast, proceeds
具有醇,磺酰胺,活性次甲基和硫醇部分作为亲核体的卤化乙烯通过在sp 2碳中心进行分子内亲核取代而环化成杂环和碳环。密度泛函理论计算表明,环化通过前进小号Ñ 2型取代(面内乙烯基亲核取代,S Ñ VΣ)中,当卤乙烯与氧,氮,和碳亲核试剂取代。用硫亲核试剂的取代,与此相反,通过进行S的两个路线Ñ VΣ和外的平面乙烯基亲核取代(S Ñ Vπ)。