The additivity of substituent effects in one-bond13C–1H coupling constants in polysubstituted pyridines
- 1 January 1979
- journal article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Perkin Transactions 2
- No. 3,p. 285-286
- https://doi.org/10.1039/p29790000285
Abstract
The additivity of substituent effects upon one-bond 13C–1H coupling constants in polysubstituted pyridines is described. The substituent effects on 1J(13CH) in monosubstituted pyridines account very well for 1J(13CH) in a variety of polysubstituted pyridines. The additivity relation has some diagnostic value in the assignment of 13C resonances where the chemical shift difference is extremely small.Keywords
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