The effects of substituents on the 5J long‐range spin‐spin coupling constants in substituted benzaldehydes
Proton magnetic resonance spectra of several mono‐ and disubstituted benzaldehydes were studied using CW, INDOR and double resonance techniques. It was verified that substitution in the para position has no effect on the long‐range coupling of the aldehydic proton with the ring protons five bonds aw...
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| Autores principales: | , |
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1979
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304921_v12_n9_p542_Contreras http://hdl.handle.net/20.500.12110/paper_00304921_v12_n9_p542_Contreras |
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| Sumario: | Proton magnetic resonance spectra of several mono‐ and disubstituted benzaldehydes were studied using CW, INDOR and double resonance techniques. It was verified that substitution in the para position has no effect on the long‐range coupling of the aldehydic proton with the ring protons five bonds away. Substitution in the ortho and meta positions (with the exception of 2,4‐dinitrobenzaldehyde) follows closely the additivity rule effects of the substituents. Copyright © 1979 Heyden & Son Ltd. |
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