期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 67, 期 21, 页码 7446-7450出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo0262661
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With aldehydes as a CO source under solvent-free conditions, rhodium complex efficiently catalyzed an intramolecular carbonylative alkene-alkyne coupling (Pauson-Khand-type reaction) and various bicyclic enones were obtained in high yield. Experiments under argon flow and a C-13-labeling experiment suggested that almost no free carbon monoxide was generated in this reaction, When noncationic rhodium complex with chiral phosphine was used as a chiral catalyst, the reaction proceeded enantioselectively to give various chiral cyclopentenones in up to 90% ee under solvent-free conditions.
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