Electrochemical oxidation of 2,5-dihydro-1h-1-benzazepines : Synthesis of 5H-1-benzazepines
摘要:
Formation of 5H-1-benzazepines was observed after electrochemical oxidation of the title compounds in a flow cell at a graphite felt anode and in acetic buffer. In basic medium, coupling reaction also occurs leading to [2,5-dihydro-1H-1-benzazepin-1-yl]-5H-1-benzazepines. Oxidation mechanisms are discussed.
Oxidation of 2,3- and 2,5-dihydro-1H-1-benzazepines by hydride transfer to an iminium ion: Synthesis of 3H-1-benzazepines
作者:B. Kharraz、P. Uriac、S. Sinbandhit、L. Toupet
DOI:10.1016/0040-4020(96)00091-9
日期:1996.3
5-dihydro-1H-1-benzazepines the initial formation of 5H-1-benzazepines was observed, whose treatment in the presence of BF3 led to 3H-1-benzazepines. The same rearrangement could be performed with t-BuOK. The hydride transfer was demonstrated using a deuterium labelled substrate. Tertiary dihydro-1-benzazepines were also oxidized but underwent rearrangement to naphthylamine derivatives.
通过将包括氢化物2转移到由杂环烯胺和BF 3生成的亚胺离子的氢化物2-2,3,5-二氢-1 H -1-苯并ze庚因的脱氢反应制备了一些3 H -1-苯并ze庚因。与2,5-二氢ħ -1-苯并吖庚因的5初步形成ħ观察-1-苯并吖庚因,在BF的存在下,其处理3导致3 ħ -1-苯并吖庚因。可以使用t-BuOK执行相同的重排。使用氘标记的底物证明了氢化物转移。叔二氢-1-苯并ze庚因也被氧化,但经过重排后变成萘胺衍生物。
Uriac, Philippe; Bonnic, Jean; Huet, Jean, Journal of Chemical Research, Miniprint, 1984, # 5, p. 1441 - 1465