Bimanes VIII: Photophysical properties of syn- and anti-1,5-diazabicyclo[3.3.0] octadienediones (9,10-dioxabimanes)
✍ Scribed by Edward M. Kosower; Hannah Kanety; Hanna Dodiuk
- Publisher
- Elsevier Science
- Year
- 1983
- Weight
- 881 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0047-2670
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The title compounds, new members in the class of tris-annelated benzenes with [2.2.1] bicyclic rings, were obtained in high yields by coupling of 2-bromo-3-trimethyltin-5,6-dimethylenenorborn-2-ene with copper(I) 2-thiophenecarboxylate (CuTC). The syn isomer was reacted with 3 equiv. of the dienophi
## Abstract In view of the significance of steric compression in the base‐catalyzed intramolecular cyclization of polycyclic olefinic alcohols, the standard enthalpies of formation of __anti__^9,10^‐10 __endo__‐hydroxytricyclo [4.2.1.1^2,5^]deca‐3,7‐dien‐9‐one **(1)** and 9‐oxatetracyclo [5.4.0.0^3