Whitesides, George M. and Kaplan, Fred and Roberts, John D. (1963) The Configurational Stability of Primary Grignard Reagents. Journal of the American Chemical Society, 85 (14). pp. 2167-2168. ISSN 0002-7863. doi:10.1021/ja00897a030. https://resolver.caltech.edu/CaltechAUTHORS:20151016-112438109
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Abstract
The n.m.r. spectrum of the methylene hydrogens of 3,3-dimethylbutylmagnesium chloride in diethyl ether that the trans and gauche coupling constants, J_t and J_g, have the same respective values for each conformation (I-III), the separation of the outer lines for I should be ( J_t + J_g), while the corresponding separation for a rapidly interconverting mixture of II and III would be 1/2(J_t + 3J_g). Therefore, if the averaging of coupling constants observed in the high-temperature spectra is a consequence of changes in conformational populations, the separation of the outer lines would be expected to change appreciably with temperature.
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| Additional Information: | © 1963 American Chemical Society. Received May 28, 1963. Supported in part by the Office of Naval Research and The National Science Foundation. | |||||||||
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| Issue or Number: | 14 | |||||||||
| DOI: | 10.1021/ja00897a030 | |||||||||
| Record Number: | CaltechAUTHORS:20151016-112438109 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20151016-112438109 | |||||||||
| Official Citation: | The Configurational Stability of Primary Grignard Reagents George M. Whitesides, Fred. Kaplan, and John D. Roberts Journal of the American Chemical Society 1963 85 (14), 2167-2168 DOI: 10.1021/ja00897a030 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 61207 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 16 Oct 2015 18:55 | |||||||||
| Last Modified: | 10 Nov 2021 22:45 |
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