Formation of a Propellanone in the Solvolysis of a 2-Oxo Bicyclic Bridgehead Compound. -Besides the known compounds (IV)-(VI) a new structure (III) is identified in the methanolysis of the triflate (I). A possible explanation of the formation of (III) is given. -(TAKEUCHI, K.; OHGA, Y.;
Formation of a propellanone in the solvolysis of a 2-oxo bicyclic bridgehead compound
β Scribed by Ken'ichi Takeuchi; Yasushi Ohga; Kazuhiko Tokunaga; Akio Tsugeno
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- French
- Weight
- 124 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0040-4039
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The cyano and carbonyl groups are strongly electron withdrawing (-I). However. in recent years considerable experimental and theoretical efforts have been made in evaluating the ITconjugative electron donation (+M) of these substituents toward cationic carbon (schemes 1 and 2).' As for the effect of
## Abstract Some bridgehead nitrogen compounds possessing the CH(Me)βbridgehead Nο£ΏC(O) system have been synthesised and their configurations assigned. The chemical shifts of the proton geminal to the methyl group provides evidence for the existence of a deformed chair conformation for the methyl su