Heterocyclic rearrangements. Part IV. Formation and reactions of some azepines
作者:J. Ashby、L. A. Cort、J. A. Elvidge、Ulli Eisner
DOI:10.1039/j39680002311
日期:——
Some 2,5-bridged tetrahydroazepines, where the bridging group X is NMe, N·CH2Ph, or Se, have been prepared from 4H-azepines and also, when X is NH or Se, from (halogenomethyl)dihydropyridines byr ing expansion. When X is NH the product reacts further to give dihydroazepine and pyrrole derivatives. The stereochemistry of these bicyclic compounds, which varies little according to the bridging atom (including