Angewandte Chemie International Edition in English · 1985 · 42 citations · 6 references
Natural SciencesChemistryCatalysisOrganic ChemistryCatalyst PreparationHeterocycle SynthesisHeterocyclic ChemistryHeterocyclic CompoundsMetal CatalysisOrganic SynthesisAlkyne Cycloaddition ReactionsCyclopropanation ReactionsNickel CatalystsTransition-metal-catalyzed Heterocycle Synthesis
[3 + 2]Cycloadditions between methylenecyclopropanes 1 and substituted alkynes 2 are achieved on a triarylphosphite(“TOPP”)-containing nickel(0) catalyst. The three 4-methylene-1-cyclopentenes 3—5, R and/or R′ ≠ H, are formed in the reaction with 1.
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