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13 C NMR chemical shift assignments for some 2‐substituted cyclic 1,3‐diketones
Author(s) -
Sammes Michael P.,
Maini Prem Nath
Publication year - 1987
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.1260250422
Subject(s) - chemistry , tautomer , chemical shift , enol , carbon 13 nmr , stereochemistry , nuclear magnetic resonance spectroscopy , medicinal chemistry , organic chemistry , catalysis
Complete 13 C NMR chemical shift assignments are reported for 32 cyclic and one acyclic 1,3‐diketones, either unsubstituted or having one or two substituents at the 2‐position. The first two classes exist exclusively in the enol form in (CD 3 ) 2 SO and as mixed tautomers in CDCl 3 .