Synthesis and Oxidative Coupling of Bi-cyclononatetraenylide – Reaction of Bi-cyclononatetraenyl with Potassium

Contrary to literature reports, treatment of bi-cyclononatetraenyl (1) with potassium does not give bi-cyclononatetraenylide (2), but ccct -cyclononatetraenide (6) in a high yield. Twofold deprotonation of the ring assembly 1 takes place after equilibration 1 ⇌ 1' followed by treatment of 1�...

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Main Authors: André Escher, Markus Neuenschwander
Format: Article
Language:deu
Published: Swiss Chemical Society 1987-02-01
Series:CHIMIA
Online Access:https://www.chimia.ch/chimia/article/view/9774
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author André Escher
Markus Neuenschwander
author_facet André Escher
Markus Neuenschwander
author_sort André Escher
collection DOAJ
description Contrary to literature reports, treatment of bi-cyclononatetraenyl (1) with potassium does not give bi-cyclononatetraenylide (2), but ccct -cyclononatetraenide (6) in a high yield. Twofold deprotonation of the ring assembly 1 takes place after equilibration 1 ⇌ 1' followed by treatment of 1' with K-tert-butoxide/Li-diisopropylamide. The structure of 2 follows from its spectroscopic data as well as from the successful oxidative treatment of 2 with Ag⊕ to give thermally unstable nonafulvalene (3).
format Article
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language deu
publishDate 1987-02-01
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spelling doaj-art-07aa92f2952540a9b1b9e99fb2e86a492025-08-20T02:29:52ZdeuSwiss Chemical SocietyCHIMIA0009-42932673-24241987-02-01411-210.2533/chimia.1987.60Synthesis and Oxidative Coupling of Bi-cyclononatetraenylide – Reaction of Bi-cyclononatetraenyl with PotassiumAndré Escher0Markus Neuenschwander1Institut für Organische Chemie Universität Bern Freiestrasse 3, CH-3012 BernInstitut für Organische Chemie Universität Bern, Freiestrasse 3, CH-3012 Bern Contrary to literature reports, treatment of bi-cyclononatetraenyl (1) with potassium does not give bi-cyclononatetraenylide (2), but ccct -cyclononatetraenide (6) in a high yield. Twofold deprotonation of the ring assembly 1 takes place after equilibration 1 ⇌ 1' followed by treatment of 1' with K-tert-butoxide/Li-diisopropylamide. The structure of 2 follows from its spectroscopic data as well as from the successful oxidative treatment of 2 with Ag⊕ to give thermally unstable nonafulvalene (3). https://www.chimia.ch/chimia/article/view/9774
spellingShingle André Escher
Markus Neuenschwander
Synthesis and Oxidative Coupling of Bi-cyclononatetraenylide – Reaction of Bi-cyclononatetraenyl with Potassium
CHIMIA
title Synthesis and Oxidative Coupling of Bi-cyclononatetraenylide – Reaction of Bi-cyclononatetraenyl with Potassium
title_full Synthesis and Oxidative Coupling of Bi-cyclononatetraenylide – Reaction of Bi-cyclononatetraenyl with Potassium
title_fullStr Synthesis and Oxidative Coupling of Bi-cyclononatetraenylide – Reaction of Bi-cyclononatetraenyl with Potassium
title_full_unstemmed Synthesis and Oxidative Coupling of Bi-cyclononatetraenylide – Reaction of Bi-cyclononatetraenyl with Potassium
title_short Synthesis and Oxidative Coupling of Bi-cyclononatetraenylide – Reaction of Bi-cyclononatetraenyl with Potassium
title_sort synthesis and oxidative coupling of bi cyclononatetraenylide reaction of bi cyclononatetraenyl with potassium
url https://www.chimia.ch/chimia/article/view/9774
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