Formation of tetrabenzodispiro[4.0.4.3]tridecatetraene by a titanium mediated fluorenyl coupling reaction

Treatment of 1,3-propanediol-ditosylate with fluorenyllithium yields 1,3-bis(fluorenyl)propane ( 5). Subsequent addition of methyl-lithium gives the corresponding dilithio compound 6. Dilithio-1,3-bis(fluorenyl)propane ( 6) was treated with titanium tetrachloride to yield the organic tetrabenzodispi...

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Bibliographic Details
Published inJournal of organometallic chemistry Vol. 501; no. 1; pp. 41 - 45
Main Authors Fritze, Cornelia, Erker, Gerhard, Fröhlich, Roland
Format Journal Article
LanguageEnglish
Published LAUSANNE 1 Elsevier B.V 04.10.1995
Elsevier
Subjects
Chemistry
Chemistry, Inorganic & Nuclear
Chemistry, Organic
Coupling reaction
Crystal structure
Metallocenes
Physical Sciences
Science & Technology
Tetrabenzodispiro(4,3,4)tridecatetraene
Titanium
Titanium
Tetrabenzodispiro(4,3,4)tridecatetraene
Metallocenes
Coupling reaction
Crystal structure
TETRABENZODISPIRO(4,3,4)TRIDECATEHAENE
ZIRCONIUM
CRYSTAL-STRUCTURE
COUPLING REACTION
COMPLEXES
CHEMISTRY
CRYSTAL STRUCTURE
TITANIUM
METALLOCENES
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Summary:Treatment of 1,3-propanediol-ditosylate with fluorenyllithium yields 1,3-bis(fluorenyl)propane ( 5). Subsequent addition of methyl-lithium gives the corresponding dilithio compound 6. Dilithio-1,3-bis(fluorenyl)propane ( 6) was treated with titanium tetrachloride to yield the organic tetrabenzodispiro[4.0.4.3]tridecatetraene product 7, presumably formed by means of a carbon-carbon coupling reaction involving substituted fluorenyl radicals. The organic compounds 5 and 7 were identified by X-ray crystal structure analyses.
ISSN:0022-328X
1872-8561
DOI:10.1016/0022-328X(95)05588-G