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Carbon-13 magnetic resonance studies of cyclic compounds. 2. Carbon-13 chemical shift parameters for equatorial and axial substituents in cyclohexane: The substituents methyl, ethyl, isopropyl, methoxy and phthalimido

✍ Scribed by H. Booth; J. R. Everett; R. A. Fleming


Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
359 KB
Volume
12
Category
Article
ISSN
0749-1581

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✦ Synopsis


Abstract

Carbon‐13 chemical shift parameters for equatorial and axial substituents in cyclohexane are reported for methyl, ethyl, isopropyl, methoxy and phthalimido substituents. The usefulness of the alkyl parameters is demonstrated by the agreement between calculated and observed ^13^C shifts for trans‐1,4‐dialkylcyclohexanes (alkyl = Me, Et, i‐Pr) and for both conformations of cis‐1,4‐dialkylcyclohexanes (alkyl = Me, Et, i‐Pr).