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1H NMR utilization of through-space effects. II—conformation of dienic ketones

✍ Scribed by Michel Rouillard; Serge Geribaldi; Marcel Azzaro

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
329 KB
Volume
16
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The configurational and conformational assignments of the carbonyl group in the Z‐ and E‐1‐(3‐substituted‐5,5‐dimethyl‐2‐cyclohexen‐1‐ylidene)‐2‐butanones are carried out using only the through‐space effects of the carbonyl group. It is demonstrated that, regardless of the Z‐ or E‐configuration or the nature of the substituent in position 3, the conformation of the carbonyl group is always s‐cis.

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