Synthesis and Structure of Seven-Membered Metallacyclic Alkynes

The zirconocene−ethylene complex and (Z)-1,4-bis(trimethylsilyl)-1,2,3-butatriene reacted to give a mixture of 1-zirconacyclopent-3-yne and 1-zirconacyclohept-3-yne. A zirconocene−alkyne complex gave, on the other hand, 1-zirconacyclohept-2-en-5-yne, which was structurally characterized as the major...

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Bibliographic Details
Published in:Organometallics 2005-02, Vol.24 (5), p.791-793
Main Authors: Suzuki, Noriyuki, Aihara, Naoto, Iwasaki, Masakazu, Saburi, Masahiko, Chihara, Teiji
Format: Article
Language:English
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Summary:The zirconocene−ethylene complex and (Z)-1,4-bis(trimethylsilyl)-1,2,3-butatriene reacted to give a mixture of 1-zirconacyclopent-3-yne and 1-zirconacyclohept-3-yne. A zirconocene−alkyne complex gave, on the other hand, 1-zirconacyclohept-2-en-5-yne, which was structurally characterized as the major product along with a lesser amount of 1-zirconacyclopent-3-yne.
ISSN:0276-7333
1520-6041
DOI:10.1021/om0492449