Journal of the American Chemical Society · 2005 · 80 citations · 8 references
Natural SciencesChemistryCatalysisOrganic ChemistryHeterocycle SynthesisHeterocyclic ChemistryHeterocyclic CompoundsOrganic SynthesisReaction MechanismsRetrosynthetic AnalysisAcid-catalyzed ReactionsCyclopropanation ReactionsHeterocycle FunctionalizationLewis Acid CatalysisLewis AcidityRearrangement ReactionsRing-forming Reactions
An interesting rearrangement of arylvinylidenecyclopropanes having three substituents at the 1- and 2-positions of the corresponding cyclopropane catalyzed by Lewis acids to give 6aH-benzo[c]fluorine derivatives via a double intramolecular Friedel-Crafts reaction or to give an indene derivative via an intramolecular Friedel-Crafts reaction is described.
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