作者:Mieczysław Mąkosza、Marek Judka
DOI:10.1002/hlca.200590132
日期:2005.7
3-chloropropyl pentachlorophenyl sulfone (=pentachloro[(3-chloropropyl)sulfonyl]benzene; 1; Ar=C6Cl5), add to electron-deficient formal imines 3a–l to produce anionic adducts that enter intramolecular substitution leading to substituted pyrrolidines. This new and simple synthesis of pyrrolidines mimics a 1,3-dipolar cycloaddition, although it proceeds in two distinct steps.
由3-氯丙基五氯苯基砜(=五氯[(3-氯丙基)磺酰基]苯;1; Ar = C 6 Cl 5)产生的具有适当亲核性的γ-氯碳阴离子加到电子贫乏的形式亚胺3a – l中,产生阴离子进入分子内取代的加合物导致取代的吡咯烷。吡咯烷的这种新的和简单的合成模拟了1,3-偶极环加成,尽管它以两个不同的步骤进行。