The title compound & a novel cyclophane containing p-tropoquinone, was synthesized starting from 5methoxytropolone and its physical properties were discussed comparing with those of 3,7-dimethyl-p-tropoquinone and p-benzaquinanophane. The reduced quinone character exhibited by l\_ was ascribed to th
[3]Parycyclo− and [3]metacyclo[3](3,7)-p-tropoquinonophanes
✍ Scribed by Akira Kawamata; Yoshimasa Fukazawa; Yutaka Fujise; Shô Itô
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- French
- Weight
- 248 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0040-4039
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1997 structure structure (organic substances) K 9000 ## 52 -033 2,13-Dithia(3)metacyclo(3)(2,3)naphthalenophane and 2,13-Dithia(3) metacyclo(3)(1,7)naphthalenophane. -Whereas title compound (I) has anti conformation, parallel ring systems and approximate mirror symmetry, its isomer (II) has perpe
The title compounds showed unique conformational equilibria which were dependent upon the substituents in the 5,7-positions, the predominant conformers being in a syn O,S,Ocis,cis conformation with a highly deformed thiophene-2,5-dicarbonyl moiety. --0 As reported previously, [3.3](2,51furano(2,5lth