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ChemInform Abstract: Direct Synthesis of Cyclopentadienones by Cobalt Carbonyl-Mediated Carbonylative Alkyne—Alkyne Coupling Reaction.

✍ Scribed by T. SHIBATA; T. OHTA; K. SOAI

Publisher: John Wiley and Sons
Year: 2010
Weight: 29 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199843085

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ChemInform Abstract: Inter- and Intramol

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ChemInform Abstract: Palladium-Catalyzed

ChemInform Abstract: Palladium-Catalyzed Intramolecular Alkyne-α,β-Unsaturated Carbonyl Coupling. A Formal Synthesis of (+)-Pilocarpine.

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Palladium-Catalyzed Intramolecular Alkyne-α,β-Unsaturated Carbonyl Coupling. A Formal Synthesis of (+)-Pilocarpine. -Pd-catalyzed enyne coupling of (E) or (Z) alkynoates (I) or (III) provides the alkenyl substituted lactones (II) highly stereoselectively. After esterification with (+)-dimethyltart