作者:Ekaterina Yu. Shinkevich、Kourosch Abbaspour Tehrani、Alexander F. Khlebnikov、Mikhail S. Novikov
DOI:10.1016/j.tet.2008.05.121
日期:2008.8
3-(2-Chloroalkyl)-2,2-dihaloaziridines were synthesized via cycloaddition of dihalocarbenes to the CN double bond of β-chloroimines. Under the action of Lewis acids or HCl, N–C3 bond cleavage occurred, giving rise to N-substituted 2,4-dichloro-3,3-dimethylbutanamides, which were further converted to 3-chloropyrrolidin-2-ones under alkaline conditions. When 2,2-dichloro-3-(2-chloro-1,1-dimethylethy
通过将二卤卡宾环加成到β-氯亚胺的CN双键上,合成了3-(2-氯烷基)-2,2-二卤代氮丙啶。在路易斯酸或HCl的作用下,发生N–C 3键裂解,产生N-取代的2,4-二氯-3,3-二甲基丁酰胺,在碱性条件下进一步转化为3-氯吡咯烷-2-酮。当2,2-二氯-3-(2-氯-1,1-二甲基乙基)-1-苯基氮丙啶与甲醇钠反应时,氮丙啶开环发生N–C 2键断裂,导致甲基4-氯- 3,3-二甲基-2-(苯基氨基)丁酸酯。