Palladium-Catalyzed Cycloisomerization of 2-Ethynylbiaryls to 9-Methylidene Fluorenes.
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DOI: 10.1021/acs.orglett.2c00534
Abstract: A palladium-catalyzed cycloisomerization of 2-ethynylbiaryls to 9-methylidene fluorenes is described for the first time. The cycloisomerization of 2-ethynylbiaryls proceeded smoothly in the presence of weak acid at low temperature to afford 9-methylidene fluorenes in satisfactory… read more here.
Keywords: palladium catalyzed; cycloisomerization ethynylbiaryls; methylidene fluorenes; catalyzed cycloisomerization ... See more keywords