IR, 1H NMR and 13C NMR spectra of isomeric 1‐aryl‐4‐methyl‐3‐ and‐5‐pyrazolecarboxylic esters

P. Sohár, Ödön Fehér, Endre Tihanyi

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Abstract

The IR, 1H and 13C NMR spectra of six esters of 1‐aryl‐4‐methyl‐3‐ and 5‐pyrazolecarboxylic acids are reported. On the basis of their spectra the 3‐ or 5‐position of the substituent in such structural isomeric pairs can be established without recourse to the spectrum of the other member of the pair. The spectral data also give information on the conformation, which depends on the relative position and size of the hetero ring substituents.

Original languageEnglish
Pages (from-to)205-208
Number of pages4
JournalOrganic Magnetic Resonance
Volume12
Issue number4
DOIs
Publication statusPublished - 1979

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Conformations
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Nuclear magnetic resonance
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IR, 1H NMR and 13C NMR spectra of isomeric 1‐aryl‐4‐methyl‐3‐ and‐5‐pyrazolecarboxylic esters. / Sohár, P.; Fehér, Ödön; Tihanyi, Endre.

In: Organic Magnetic Resonance, Vol. 12, No. 4, 1979, p. 205-208.

Research output: Contribution to journalArticle

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