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A comment on the magnitude of homoallylic coupling and the conformation of 1,4-cyclohexadiene

✍ Scribed by D.J. Atkinson; M.J. Perkins

Publisher: Elsevier Science
Year: 1969
Tongue: French
Weight: 212 KB
Volume: 10
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)88157-0

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✦ Synopsis

Considerable effort hae been direoted towards identification of the preferred oonformation of the 1,4-oyclohexadiene ring. The most recent information canes from an electron diffraction study of the gaseous diene, and demonstrates that the ring adopts a boat conformation with a dihedral angle a, ( figure l), of 159.3 o (1) . This is In marked contrast with theccnolueione drawn from an elegant nmr investigation by Garbisch and Griffith, whose results ruggested that the ring le planar ( a -1800), or nearly 80. (2) c *' a*

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