Chemistry Letters · 1996 · 18 citations · 11 references
Natural SciencesChemistryCatalysisOrganic ChemistryCarbonyl ChemistryHeterocycle SynthesisHeterocyclic ChemistryOrganic SynthesisCarbonyl Compound FormationCarbonylation ReactionsWater-gas Shift Reaction
Abstract Rhodium complexes catalyze carbonylation of 2-alkynylbenzaldehyde 1 under water-gas shift reaction conditions to give novel lactone 2 as a major product (up to 59% yield), the structure of which is a tricyclic ring system.
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A Convenient Synthesis of Ethynylarenes and Diethynylarenes
S. Takahashi, Y. Kuroyama, Kenkichi Sonogashira et al. · Synthesis · 1980 · 1.1K citations