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Ishimitsu T, Fujiwara Y, Hirose S. Study of the tautomeric forms of 3,4-dihydroxyphenylacetic acid by carbon-13 nuclear magnetic resonance spectroscopy. Talanta. 1979;26(1):67-9doi: 10.1016/0039-9140(79)80160-5.
Ishimitsu, T., Fujiwara, Y., & Hirose, S. (1979). Study of the tautomeric forms of 3,4-dihydroxyphenylacetic acid by carbon-13 nuclear magnetic resonance spectroscopy. Talanta, 26(1), 67-9. https://doi.org/10.1016/0039-9140(79)80160-5
Ishimitsu, T, et al. "Study of the tautomeric forms of 3,4-dihydroxyphenylacetic acid by carbon-13 nuclear magnetic resonance spectroscopy." Talanta vol. 26,1 (1979): 67-9. doi: https://doi.org/10.1016/0039-9140(79)80160-5
Ishimitsu T, Fujiwara Y, Hirose S. Study of the tautomeric forms of 3,4-dihydroxyphenylacetic acid by carbon-13 nuclear magnetic resonance spectroscopy. Talanta. 1979 Jan;26(1):67-9. doi: 10.1016/0039-9140(79)80160-5. PMID: 18962380.
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Talanta. 1979 Jan;26(1):67-9. doi: 10.1016/0039-9140(79)80160-5.

Study of the tautomeric forms of 3,4-dihydroxyphenylacetic acid by carbon-13 nuclear magnetic resonance spectroscopy.

Talanta

T Ishimitsu, Y Fujiwara, S Hirose

Affiliations

  1. Kyoto College of Pharmacy, Kyoto 607, Japan.

PMID: 18962380 DOI: 10.1016/0039-9140(79)80160-5

Abstract

The pH-dependent (13)C chemical shifts indicate an approximately 1:1 ratio of the 3-OH:4-OH tautomeric forms of singly dissociated 3,4-dihydroxyphenylacetic acid. It is found that the (13)C chemical-shift method is an effective technique for determining tautomeric forms from pK values.

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