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13 C NMR of coumarins. III —Simple coumarins
Author(s) -
Macias F. A.,
Massanet G. M.,
RodríguezLuis F.,
Salvá J.
Publication year - 1989
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260270913
Subject(s) - chemistry , substituent , chemical shift , carbon 13 nmr , coumarin , nuclear magnetic resonance spectroscopy , proton nmr , computational chemistry , stereochemistry , organic chemistry
13 C NMR data for several simple coumarins are reported. The γ syn effect of a 5‐methoxy substituent on the C‐4 chemical shift was observed and measured. The effects of an 8‐iodo substituent on the chemical shifts of the carbons of the coumarinic skeleton are discussed.