Deuterium Isotope Effects in Some Intramolecular Aromatic Substitutions
β Scribed by Denney, Donald B.; Klemchuk, Peter P.
- Book ID
- 126417626
- Publisher
- American Chemical Society
- Year
- 1958
- Tongue
- English
- Weight
- 262 KB
- Volume
- 80
- Category
- Article
- ISSN
- 0002-7863
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π SIMILAR VOLUMES
The effect of substitution of hydrogen by deuterium in some aromatic compounds on product distributions in the meta photocycloaddition to al kenes was investigated. The isotope effects found are in agreement with a polar mechanism.
## Abstract Reaction rates for the protodesilylation of trimethylphenylsilane and of [2,4,6β^2^H~3~]βtrimethylphenylsilane by HCIO~4~, were measured in aqueous methanol (2:5, __v/v__) and the secondary deuterium isotope effect for the reaction was found to be __k__~H~/__k__~D3~ = 0.79. The magnitud
The interesting deuterium isotope e β ects of gossypols have been reinvestigated and the very large two-bond isotope e β ect, 2DC-6(OD), is ascribed to electric Γeld e β ects. Common to the investigated compounds is the presence of intramolecular hydrogen bonds. A feature strongly related to the streng