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The ring inversion in tetrabenzocyclooctatetraene: a correction

✍ Scribed by A. Rosdahl; J. Sandström

Publisher
Elsevier Science
Year
1972
Tongue
French
Weight
173 KB
Volume
13
Category
Article
ISSN
0040-4039

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On the inversion barrier in tetrabenzocy
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## 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 tha

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## Abstract Activation parameters have been determined for ring inversion in a 3,4‐dihydro‐2__H__‐thiopyran and this system has been compared with analogous 6‐membered ring systems.