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On the inversion barrier in tetrabenzocyclooctatetraene

✍ Scribed by C.J. Finder; D. Chung; N.L. Allinger

Publisher: Elsevier Science
Year: 1972
Tongue: French
Weight: 205 KB
Volume: 13
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)94397-7

No coin nor oath required. For personal study only.

✦ Synopsis

Recently Figeys and Dralantsl

reported that the barrier to inversion of tetrabeneocyclooctatetraene (TBCOT) was 5 kcal/mol, using the nmr decoalescence of two diastereomeric methyl groups in a substituted derivative. Other cyclooctatetraene derivatives show much higher barriers to inversion than this (see Table ). in the range 13 -23 kcal/mol.

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