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Thermolysis of biphenylene toward cyclo-ortho-phenylenes [data]

The solvent and catalyst free thermolysis of biphenylenes at 350 °C furnishes [n]cyclo-ortho-phenylenes ([n]COPs, n=4–10) in one step and in high yields. At 400 °C biphenylene dimerizes into tetraphenylene, but lower reaction temperatures produce cyclooligomers. If suitably substituted, the oligomer...

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Main Authors: Ehjeij, Daniel (Author) , Rominger, Frank (Author) , Bunz, Uwe H. F. (Author) , Freudenberg, Jan (Author) , Müllen, Klaus (Author)
Format: Database Research Data
Language:English
Published: Heidelberg Universität 2024-03-04
DOI:10.11588/data/AYVNYK
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Online Access:Resolving-System, kostenfrei, Volltext: https://doi.org/10.11588/data/AYVNYK
Verlag, kostenfrei, Volltext: https://heidata.uni-heidelberg.de/dataset.xhtml?persistentId=doi:10.11588/data/AYVNYK
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Author Notes:Daniel Ehjeij, Frank Rominger, Uwe Bunz, Jan Freudenberg, Klaus Müllen
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Summary:The solvent and catalyst free thermolysis of biphenylenes at 350 °C furnishes [n]cyclo-ortho-phenylenes ([n]COPs, n=4–10) in one step and in high yields. At 400 °C biphenylene dimerizes into tetraphenylene, but lower reaction temperatures produce cyclooligomers. If suitably substituted, the oligomers are soluble and can be isolated and characterized. The products are exclusively cyclic. In the crystalline state, [6]COP displays an alternating crown-shaped conformation. (2023-12-12)
Item Description:Gesehen am 13.05.2024
Physical Description:Online Resource
DOI:10.11588/data/AYVNYK

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