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Synthesis of Tetracyclic 2,3-Dihydro-1,3-diazepines from a Dinitrodibenzothiophene Derivative
- Montanaro, Stephanie, Wright, Iain A., Batsanov, Andrei S., Bryce, Martin R.
- Journal of organic chemistry 2018 v.83 no.19 pp. 12320-12326
- aldehydes, chemical reactions, chemical structure, nitro compounds, organic chemistry
- Triply fused 1,3-diazepine derivatives have been obtained by acidic reduction of rotationally locked and sterically hindered nitro groups in the presence of an aldehyde or ketone. The nitro groups are sited on adjacent rings of a dicyanodibenzothiophene-5,5-dioxide, which also displays fully reversible two-electron-accepting behavior. The synthesis, crystallographically determined molecular structures, and aspects of the electronic properties of these new molecules are presented.