Carbon‐13 nuclear magnetic resonance spectra of methyl 2‐pyronecarboxylates | Zendy

Imagawa Takeshi | Zendy; Haneda Akira | Zendy; Kawanisi Mituyosi | Zendy

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Carbon‐13 nuclear magnetic resonance spectra of methyl 2‐pyronecarboxylates

Author(s) -

Imagawa Takeshi,

Haneda Akira,

Kawanisi Mituyosi

Publication year - 1980

Publication title -

organic magnetic resonance

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.483

H-Index - 72

eISSN - 1097-458X

pISSN - 0030-4921

DOI - 10.1002/mrc.1270130404

Subject(s) - substituent , pyrone , spectral line , ring (chemistry) , coupling constant , chemistry , nuclear magnetic resonance , nmr spectra database , carbon 13 nmr , carbon fibers , stereochemistry , materials science , organic chemistry , physics , composite number , composite material , particle physics , astronomy

The 13 C NMR spectra of methyl 2‐pyrone‐3‐, 4‐, 5‐ and 6‐carboxylates were studied and the substituent effects on the 2‐pyrone ring were compared with those of some model compounds. 1 H NMR spectra were also recorded and discussed. The long range 13 C, 1 H coupling constants were obtained, discussed and proved useful in signal assignments.

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