## Syntheses of the benzodicinnolines (3) and ( 4), and their vacuum thermolysis to give the title compound (l), are reported. The effects which arise from the fusion of small, strained rings 192 and of potentially
Structure of benzo[b]biphenylene
β Scribed by Ferrara, J. D. ;Solooki, D. ;Tessier-Youngs, C. ;Youngs, W. J.
- Book ID
- 114505778
- Publisher
- International Union of Crystallography
- Year
- 1989
- Tongue
- English
- Weight
- 499 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0108-2701
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π SIMILAR VOLUMES
## Abstract ESR.βspectra are reported for the radical anion and the radical cation of benzo[b]βbiphenylene (III). Comparison of the proton coupling constants (a~HΞΌ~) for III Β· β and III Β· β with Οβspin populations (Ο±~ΞΌ~), calculated by the __McLachlan__ procedure, permits a lower limit of 0.77 to b
Current interest in strained systems resulting from the fusion of more than one small, strained ring onto a benzene nucleus has led to the recent synthesis of molecules such as 1,2,5,6-tetrahydrodicyclobuta[a,c]benzene (l).l