Synthetic and Mechanistic Studies of Indium-Mediated Allylation of Imines in Ionic Liquids
作者:Man Chun Law、Tin Wai Cheung、Kwok-Yin Wong、Tak Hang Chan
DOI:10.1021/jo062198x
日期:2007.2.1
Aldimines derivedfrom aryl and non-enolizable aliphatic aldehydes were allylated with allyl bromide mediated by indium powder in [bpy][BF4] (bpy = N-butylpyridine) to give good yields of the corresponding homoallylic amines. Selective formation of monoallylated amines can be achieved by varying the amount of bromide ion additive in the form of [bpy][Br]. The transient organoindium intermediates, allylindium(I)
Electrochemical Allylation Reactions of Simple Imines in Aqueous Solution Mediated by Nanoscale Zinc Architectures
作者:Jing-Mei Huang、Xu-Xiao Wang、Yi Dong
DOI:10.1002/anie.201004852
日期:2011.1.24
I zinc we're alone now: The title reactions were achieved in an undivided cell fitted with a pair of zinc electrodes in aqueoussolution. A preliminary study on the relationship of reaction activity and surface morphology showed that the deposited zinc powders with nanoscale architectures had very high activity.
A silver triflate-catalyzed cascade of in situ-oxidation and allylation of arylbenzylamines
作者:Junjiao Wang、Shangdong Yang
DOI:10.1016/j.tetlet.2016.06.076
日期:2016.8
A silver-triflate catalyzed cascade of in situ-oxidation and allylation of arylbenzylamines is reported. The 2,2,6,6-tetramethylpiperidine-1-oxoammonium tetrafluoroborate is employed as a mild oxidant which is compatible with both catalyst and ligand. Racemic BINAP is also utilized to assist with the catalyst in regulating the yields of products. Various homoallylic amines are obtained in 39-99% yields. (C) 2016 Elsevier Ltd. All rights reserved.
GaCl3-catalyzed [4+2] annulations of allyltrimethylsilane and trimethyl(propargyl)silane with aldimines
作者:Tsunehisa Hirashita、Daisuke Kawai、Shuki Araki
DOI:10.1016/j.tetlet.2007.06.013
日期:2007.7
The GaCl3-catalyzed reaction of allyltrimethylsilane and aldimines gave tetrahydroquinolines in good yields. Similarly, 4-methylquinoline was obtained by using trimethyl(propargyl)silane via a dehydrogenation process. (c) 2007 Elsevier Ltd. All rights reserved.