SCHEDULED MAINTENANCE
The previously unknown 3H-1,2-benzodiazepines (3) are prepared from the 1H-isomers (1) in high yields and the energy barriers to ring inversion are estimated from n.m.r. spectral data; irradiation of the diazepines (3) affords 3-vinylindazole and indenes.
J. Kurita and T. Tsuchiya, J. Chem. Soc., Chem. Commun., 1974, 936 DOI: 10.1039/C39740000936
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