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Furopyridines. XI . 13 C NMR Spectra of 2‐ or 3‐Substituted Furo[2,3‐ b ]‐, Furo[3,2‐ b ]‐, Furo[2,3‐ c ]‐ and Furo[3,2‐ c ]pyridine
Author(s) -
Shiotani Shunsaku,
Morita Hiroyuki
Publication year - 1991
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.5570280601
Subject(s) - chemistry , substituent , chemical shift , furan , spectral line , pyridine , annulation , coupling constant , carbon 13 nmr , nmr spectra database , stereochemistry , medicinal chemistry , organic chemistry , physics , astronomy , catalysis , particle physics
The 13 C nmr spectra of 2‐ or 3‐monosubstituted furo[2,3‐ b ]‐ 1a‐1j , furo[3,2‐ b ]‐ 2a‐2j , furo[2,3‐ c ]‐ 3a‐3j and furo[3,2‐ c ]pyridine derivatives 4a‐4j are reported. Effects by change in annelation and substituent effects on 13 C chemical shifts and carbon‐proton coupling constants are discussed. The spectra of benzo[ b ]furan derivatives 5a‐5j having the corresponding substituent are also reported for comparison.