The reaction of sodium amide in liquid ammonia on l-methyl-l-benzylpyrrolidinium iodide was examined and found to give two isomeric tertiary bases: one of them (yield 86%) results from a Sommelet rearrangement, the other (yield 5%) is formed through a Stevens rearrangement. Dans un article priceden
Contribution A L'étude De L'Action Des Bases Sur Les Sels D'Ammonium Quaternaires I. Dégradation Et Réarrangement De L'Iodure De 1-Méthyl-Benzylpipéridinium
✍ Scribed by L. P. A. Fery; L. van Hove
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 2010
- Weight
- 894 KB
- Volume
- 68
- Category
- Article
- ISSN
- 0037-9646
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
In order to examine the importance of Sommelet and Stevens rearrangement versus β‐elimination, the reaction of sodium amide in liquid ammonia on 1‐methyl‐benzylpiperidinium iodide was examined and found to give three isomeric tertiary bases: two of them resulting from a Sommelet rearrangement, the third one being formed in a Stevens rearrangement; no Hofmann β‐elimination was observed. The reaction of sodium amide on the same quaternary salt in refluxing xylene results in both Sommelet rearrangement and β‐elimination.
📜 SIMILAR VOLUMES
Reaction of 2-methyl-2-benzyl-l,2,3,4-tetrahydroisoquinolinium iodide with sodium amide in liquid ammonia yields 76% l-orthotolyl-2-methy1-1,2,3,4-tetrahydroisoquinoline resulting from a Sommelet-Hauser rearrangement. In the same conditions, 2,2-dimethyl-1,2,3,4-tetrahydroisoquinolinium iodide yield
## CONTRIBUTION A L'ETUDE DES REACTIONS DE PECHMANN ET SIMONIS A. RUWET, D. JANNE et M. RENSON The Pechmann and Simonis reactions are investigated with phenols (0, S, Se). Thio and selenophenols give thio-1 and seleno-1 chromones (Simonis reaction). Several cyclizing agents are studied. Ethyl ace