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A 13C NMR investigation of [5]metacyclophanes

✍ Scribed by L. W. Jenneskens; F. J. J. de Kanter; W. H. de Wolf; F. Bickelhaupt

Publisher: John Wiley and Sons
Year: 1986
Tongue: English
Weight: 497 KB
Volume: 24
Category: Article
ISSN: 0749-1581
DOI: 10.1002/mrc.1260240408

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✦ Synopsis

Carbon-13 NMR data of [iilmetacyclophane (la), its 8,ll-dihalosubstituted derivatives lb-ld and of some model compounds are reported and discussed. A remarkable downfield shift is observed for the aromatic carbon between the bridging carbons; this is tentatively ascribed to long-range effects of the bridge and to the bending of the aromatic ring.

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