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13C,13C coupling constants of conjugated dienes

✍ Scribed by Michael Stöcker; Martin Klessinger; Konrad Wilhelm

Publisher
John Wiley and Sons
Year
1981
Tongue
English
Weight
198 KB
Volume
17
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

One bond ^13^C,^13^C‐ and ^13^C,^1^H‐coupling constants have been measured for some 1,2‐dimethylene‐cycloalkanes, as well as for 2,3‐dimethylbuta‐1,3‐diene and methylenecyclobutane. The results for 2,3‐dimethylbuta‐1,3‐diene confirm the findings for buta‐1,3‐diene, i.e. that J(C‐1, C‐2) is smaller for the diene than for the correspondingly substituted monoene. No differences have been found between the ^1^J(CC) exocyclic coupling constants of the dimethylene and monomethylene cycloalkanes.

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