SCHEDULED MAINTENANCE
The isomeric trifluorobenzynes have been generated from tetrafluorophenyl-lithium reagents in the presence of furan and afford good yields of the expected products. Reaction with aromatic substrates gives considerably lower yields of the isomeric trifluoro-1,4-dihydro-1,4-ethenonaphthalenes than are obtained in analogous reactions with tetrafluorobenzyne.
R. Harrison and H. Heaney, J. Chem. Soc. C, 1968, 889 DOI: 10.1039/J39680000889
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