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Proton NMR studies of syn- and anti-tricyclo [5.1.0.03,5]octanes and their dichloromethyl derivatives

✍ Scribed by Linxiao Xu; Udo H. Brinker; William B. Smith

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
528 KB
Volume
30
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The carbon and proton NMR spectra of syn‐ and anti‐tricyclo[5.1.0.0^3,5^]octanes and their dichlorocarbene CH bond insertion products were determined by conventional 1D and 2D methods. Partially relaxed proton spectroscopy was carried out in some instances to aid in the separation of badly overlapped multiplets. A detailed analysis of the spectra was carried out with the aid of a new equation relating both the torsion angles and the CCH angles to the vicinal proton coupling constants. These values were combined with molecular modeling to draw conclusions regarding the conformational preferences for these molecules.

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