A New Method for Intramolecular Chloroamination of Unfunctionalized Olefins
作者:Gong-Qing Liu、Wei Li、Yue-Ming Li
DOI:10.1002/adsc.201200352
日期:2013.1.25
A newmethod for the intramolecularchloroamination of unfunctionalizedolefins is reported. The reactions were carried out at room temperature for 3 h using hydrated copper(II) chloride as both promoter and chlorine source, and the corresponding vincinal haloamines were obtained in good isolated yields.
One-pot preparation of 3-chloropiperidine compounds via Cu(II)-promoted intramolecular chloroamination of unfunctionalized olefins
作者:Run-Lin Li、Gong-Qing Liu、Wei Li、Yu-Mei Wang、Lin Li、Lili Duan、Yue-Ming Li
DOI:10.1016/j.tet.2013.05.022
日期:2013.7
3-Chloropiperidine compounds were obtained via Cu(II)-promoted one-pot intramolecularchloroamination of N-benzyl-4-penten-1-amines and subsequent rearrangement. The reaction conditions leading to this skeleton were studied, and the structure of the product was confirmed by NMR as well as X-ray diffraction experiments.
Transition metal-free iodine-promoted haloamination of unfunctionalized olefins
作者:Wei Li、Gong-Qing Liu、Bin Cui、Li Zhang、Ting-Ting Li、Lin Li、Lili Duan、Yue-Ming Li
DOI:10.1039/c4ra00383g
日期:——
A transition metal-free route to 3-halopiperidines and 2-halomethylpiperidines was described. In the presence of iodine, potassium persulfate and a suitable halogen source, intramolecular haloamination of 4-penten-1-amines and 5-hexen-1-amines proceeded readily, leading to the corresponding substituted piperidines in good isolated yields.