氮丙啶衍生物的亲核开环为制备各种β-官能化胺提供了重要的合成工具。胺作为亲核试剂用于在各种催化剂或活化剂存在下制备合成有用的1,2-二胺。在此,开发了B 2 (OH) 4介导的硝基芳烃对N-甲苯磺酰基氮丙啶的还原开环转化。该水性方案采用硝基芳烃作为廉价且容易获得的氨基源,并在无外部催化剂的条件下进行。对照实验和DFT计算表明硝基芳烃通过N-芳基硼酰胺酸( E )原位还原为芳基胺,并通过所得芳基胺对N-甲苯磺酰基氮丙啶进行S N 1型开环,具有高区域选择性。
Ring-opening reaction of aziridines with amines under the influence of dimethyl sulfoxide
作者:Toshihiro Isobe、Takeshi Oriyama
DOI:10.1016/j.tetlet.2016.05.044
日期:2016.6
temperature to afford the corresponding 1,2-diamines in good to excellent yields using only 3–5 equiv dimethyl sulfoxide (DMSO) to aziridines in hexane. This reaction can be performed with easy handling and proceeds under mild reaction conditions. Also a variety of amines are available as a nucleophile.
A highly efficient and general method for the ring-opening of aziridines with various nucleophiles in DMSO
作者:Jie Wu、Xiaoyu Sun、Wei Sun
DOI:10.1039/b611707d
日期:——
Ring-opening of aziridines with various nucleophiles (such as amines, thiols, and silylated nucleophiles) in DMSO under mild conditions without any catalyst afforded the corresponding products in good to excellent yields.
Efficient Ring-Opening Reaction of Epoxides and Aziridines Promoted by Tributylphosphine in Water
作者:Ren-Hua Fan、Xue-Long Hou
DOI:10.1021/jo025983s
日期:2003.2.1
Tributylphosphine was found to be an effective promoting reagent for the ring-openingreaction of various epoxides and aziridines with nucleophile to produce corresponding anti-bifunctional products in moderate to excellent yields in water.
1-Butyl-3-methylimidazolium Tetrafluoroborate ([Bmim]BF4) Ionic Liquid: A Novel and Recyclable Reaction Medium for the Synthesis ofvic-Diamines
作者:J. S. Yadav、B. V. S. Reddy、K. Premalatha
DOI:10.1002/adsc.200303029
日期:2003.8
opening smoothly with various arylamines in 1-butyl-3-methylimidazoliumtetrafluoroborate ([bmim]BF4) or 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim]PF6) ionicliquids under mild and neutral conditions to afford the corresponding vicinal-diamines in excellent yields with high regioselectivity. The recovered activated ionicliquids are recycled for four to five runs with no loss of activity