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A short synthesis of donor-acceptor substituted CpCo-capped cyclobutadiene-superphanes

✍ Scribed by Gebhard Haberhauer; Rolf Gleiter

Book ID
104259804
Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
171 KB
Volume
39
Category
Article
ISSN
0040-4039

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✦ Synopsis

The reaction of 1,1,3,3-tetramethyl-l,3-disilanona-4,8-diyne (7) and 1,1,4,4-tetramethyl-l,4-disiladeca-5,9-diyne (8) with R-CpCo(CO)2 (R=H, CH3) allowed to stop the reaction at the stage of tricyclic intermediates, the latter could be reacted again with R-CpCoLz(L2=COD,(CO)2) to yield CpCo-capped cyclobutadienesuperphanes with different substituents in the two Cp ligands.

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One-pot synthesis of mixed superphanes with CpCo-capped cyclobutadiene- and cyclopentadienone rings
✍ Rolf Roers; Frank Rominger; Rolf Gleiter πŸ“‚ Article πŸ“… 1999 πŸ› Elsevier Science 🌐 French βš– 172 KB

Cyclophanes in which two cyclic conjugated n-systems face each other are ideal models for studying the interactions of two n-systems as a function of distance and intervening (~-skeleton. 1~ For this reason a simple access to these systems is desirable. We here report a one-pot synthesis of cyclopha