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Carbon‐13 NMR spectra of saturated heterocycles: VIII —tetrahydrofurans and 1,3‐dioxolanes
Author(s) -
Eliel Ernest L.,
Rao V. Satyanarayana,
Pietrusiewicz K. Michal
Publication year - 1979
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.1270120805
Subject(s) - substituent , cyclopentanes , ring (chemistry) , additive function , chemistry , alkyl , aryl , carbon 13 nmr , spectral line , nmr spectra database , carbon fibers , stereochemistry , medicinal chemistry , organic chemistry , materials science , mathematics , catalysis , mathematical analysis , physics , astronomy , composite number , composite material
The 13 C NMR spectra of 17 methyl‐ and ethyl‐substituted tetrahydrofurans and 58 alkyl‐ and aryl‐ substituted 1,3‐dioxolanes are reported. For the cases in which substituents recur, additive substituent parameters are calculated and compared with similar parameters in cyclopentanes and in 6‐membered rings. Considering the conformational flexibility of 5‐membered ring systems, additivity of the parameters is surprisingly good.