Electrophilic additions to allenes. The nature of the transition state in the protonation of phenylallenes
โ Scribed by T. Okuyama; K. Izawa; T. Fueno
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- French
- Weight
- 178 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0040-4039
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โฆ Synopsis
We wish to report here the results of kinetic studies on the hydrochlorination of phenylallene 1 and its derivatives, and discuss about a salient characteristic of this reaction in its transition state.
๐ SIMILAR VOLUMES
The pi complexes first formed as essential intermediates from alkenes, alkynes, and allenes with bromine have been investigated in different solvents by UV-spectroscopy in combination with stopped-flow techniques allowing the determination of the equilibrium constants, K(f). Using alkenes with steri
however, variable over a wide range (1 :O.l to 1 :2) and its effect is mainly on the reaction time',].
We have been interested for some time in the nucleophilic addition reactions to carl-6 bony1 compounds , the interpretation of our kinetic data has lead us to conclude that the position of the transition state along the reaction coordinate is not the same for all reactions and depends instead upon t