Rosenberg, E. and Williamson, Kenneth L. and Roberts, John D. (1976) ^(15)N Nuclear Magnetic Resonance Spectroscopy. Natural Abundance^(15)N NMR of Monosubstituted Indoles. Organic Magnetic Resonance, 8 (3). pp. 117-119. ISSN 0030-4921. doi:10.1002/mrc.1270080302. https://resolver.caltech.edu/CaltechAUTHORS:20151023-122404246
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Abstract
^(15)N chemical shifts of twenty-four substituted indoles have been determined in natural abundance (in organic solvents) using Fourier transform NMR. The overall chemical shift range is 27 ppm, with groups in the 2-, 3- and 5-ring positions showing the largest substituent effects. Substituents capable of resonance interaction with the indole nitrogen give shifts in the expected directions but they cannot be correlated with known substituent parameters. Compounds measured in DMSO give 0·2 to 10·2 ppm downfield shifts with respect to the same compound measured in CDCl_3. ^(13)C NMR data for previously unreported compounds are also reported.
| Item Type: | Article | |||||||||
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| Additional Information: | © 1976 Heyden & Son Ltd. Received 11 April 1975 ; accepted (revised) 2 July 1975. This work was supported by the Public Health Service, Research Grant No. GM-11072, from the Division of General Medical Sciences, and by the National Science Foundation. | |||||||||
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| Issue or Number: | 3 | |||||||||
| DOI: | 10.1002/mrc.1270080302 | |||||||||
| Record Number: | CaltechAUTHORS:20151023-122404246 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20151023-122404246 | |||||||||
| Official Citation: | Rosenberg, E., Williamson, K. L. and Roberts, J. D. (1976), 15N nuclear magnetic resonance spectroscopy. Natural abundance 15N NMR of monosubstituted indoles. Org. Magn. Reson., 8: 117–119. doi: 10.1002/mrc.1270080302 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 61491 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 26 Oct 2015 21:10 | |||||||||
| Last Modified: | 10 Nov 2021 22:49 |
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