New Pathways to Precursors of Pentalene

Syn-cis-(2) and anti-cis-(3) pentalene dimers are easily available by CuCl2-induced oxidative coupling of dilithium-pentalenediide (5). On the other hand, NBS-bromination as well of 1,5-dihydro-pentalene (4) as of 1,2-dihydropentalene (6) gives unstable 1-bromo-1,2-dihydropentalene (7), wh...

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Main Authors: Shaochun You, Markus Neuenschwander
Format: Article
Language:deu
Published: Swiss Chemical Society 1996-01-01
Series:CHIMIA
Online Access:https://chimia.ch/chimia/article/view/2599
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author Shaochun You
Markus Neuenschwander
author_facet Shaochun You
Markus Neuenschwander
author_sort Shaochun You
collection DOAJ
description Syn-cis-(2) and anti-cis-(3) pentalene dimers are easily available by CuCl2-induced oxidative coupling of dilithium-pentalenediide (5). On the other hand, NBS-bromination as well of 1,5-dihydro-pentalene (4) as of 1,2-dihydropentalene (6) gives unstable 1-bromo-1,2-dihydropentalene (7), while subsequent in situ elimination with Et3N exclusively leads to syn-cis-pentalene dimer 2 in moderate yields.
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spelling doaj.art-dc9ce66104524237b38e4f3a8b8abe902022-12-22T00:01:09ZdeuSwiss Chemical SocietyCHIMIA0009-42932673-24241996-01-01501-2New Pathways to Precursors of PentaleneShaochun YouMarkus Neuenschwander Syn-cis-(2) and anti-cis-(3) pentalene dimers are easily available by CuCl2-induced oxidative coupling of dilithium-pentalenediide (5). On the other hand, NBS-bromination as well of 1,5-dihydro-pentalene (4) as of 1,2-dihydropentalene (6) gives unstable 1-bromo-1,2-dihydropentalene (7), while subsequent in situ elimination with Et3N exclusively leads to syn-cis-pentalene dimer 2 in moderate yields. https://chimia.ch/chimia/article/view/2599
spellingShingle Shaochun You
Markus Neuenschwander
New Pathways to Precursors of Pentalene
CHIMIA
title New Pathways to Precursors of Pentalene
title_full New Pathways to Precursors of Pentalene
title_fullStr New Pathways to Precursors of Pentalene
title_full_unstemmed New Pathways to Precursors of Pentalene
title_short New Pathways to Precursors of Pentalene
title_sort new pathways to precursors of pentalene
url https://chimia.ch/chimia/article/view/2599
work_keys_str_mv AT shaochunyou newpathwaystoprecursorsofpentalene
AT markusneuenschwander newpathwaystoprecursorsofpentalene