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Identification of N ‐methylpyrazole analog isomers by 13 C NMR
Author(s) -
Agnew Marc N.,
Bauer Victor J.,
Effland Richard C.
Publication year - 1980
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570170744
Subject(s) - chemistry , proton , pyrazole , carbon 13 nmr , proton nmr , chemical shift , nmr spectra database , stereochemistry , nuclear magnetic resonance spectroscopy , spectral line , physics , quantum mechanics , astronomy
Using several N ‐methyl pyrazole analogs the utility of 13 C nmr in determining isomeric structures was examined. The chemical shift assignments of the pyrazole carbons and thus the isomeric structures were determined using a combination of proton coupled and proton decoupled 13 C nmr spectra.