120783-69-9Relevant articles and documents
Synthesis and Characterization of 2H-, 3H- and 4H-Azepine: The First Observation of the Thermal Distribution Equilibrium of Azepines
Satake, Kyosuke,Okuda, Ryoichi,Hashimoto, Michiaki,Fujiwara, Yasushi,Watadani, Izumi,et al.
, p. 1154 - 1156 (2007/10/02)
Demethoxycarbonylation of methyl 2,5-di-tert-butyl-1H-azepine-1-carboxylate using 1,8-diazabicycloundec-7-ene gives exclusively two isomers of 3H-azepine derivatives, while methyl 3,6-di-tert-butyl-1H-azepine-1-carboxylate gives a mixture of 2H-, 3H- and 4H-azepine derivatives under the same conditions because of a 1,5-hydrogen shift in the resulting triene system.