Electronic structure and reactivity of propellanes : Photoelectron spectra of thia[4.4.3]propellanes
✍ Scribed by Michael C. Böhm; Rolf Gleiter
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- French
- Weight
- 420 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0040-4020
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## Abstract The crystal structures of [4.4.4]propellane (monoclinic, __a__=12.053, __b__=7.832, __c__=13.001 Å, β=104.89°, space group __C__2/__c__, __Z__=4) and [4.4.4]propellatriene (monoclinic, __a__=7.876, __b__=12.651, __c__=13.164 Å, β=122.81°, space group __P__2~1~/__c__,__Z__=4) have been d
## Abstract The title compound reacts with the dienophile by attacking the face of a cyclo‐hexadiene ring which is __syn__‐ to the lactone ring.
## Abstract Treatment of (+)‐sclareolide (**1**) with polyphosphoric acid or __Eaton'__s reagent furnished, besides the anticipated cyclopentenone (−)‐**12** and its isomer (−)‐**15**, two diastereoisomeric [4.3.3]propellanes (−)‐**13** and (−)‐**14**, which possess interesting woody‐ambery odors.
dropwise at such a rate that THF distilled over slowly. The evolution of hydrogen gas was followed by means of a wet-test meter. When the addition was complete and 5 L of hydrogen had evolved, the slurry was concentrated to approximately 400 mL, cooled slightly, and diluted with hexane to I L. A whi