Palladium-Catalyzed Nucleophilic Reaction of Alkylidenecyclopropanes with β,γ-Unsaturated α‑Ketoesters: Ligand-Controlled Divergent Synthesis
A palladium-catalyzed ligand-controlled selective 1,4-addition and cycloaddition reaction of β,γ-unsaturated α-ketoesters with alkylidenecyclopropanes (ACPs) has been developed. Using ACPs and β,γ-unsaturated α-ketoesters as starting materials, γ-dienyl-α-ketoesters and dihydro-2H-pyrans could be pr...
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Published in | Organic letters Vol. 24; no. 36; pp. 6692 - 6696 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
WASHINGTON
American Chemical Society
16.09.2022
Amer Chemical Soc |
Subjects | |
Online Access | Get full text |
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Summary: | A palladium-catalyzed ligand-controlled selective 1,4-addition and cycloaddition reaction of β,γ-unsaturated α-ketoesters with alkylidenecyclopropanes (ACPs) has been developed. Using ACPs and β,γ-unsaturated α-ketoesters as starting materials, γ-dienyl-α-ketoesters and dihydro-2H-pyrans could be prepared selectively by modulating the ligand. A range of multisubstituted α-ketoesters and dihydro-2H-pyrans were obtained in moderate to excellent yields with excellent regioselectivities. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 1523-7060 1523-7052 |
DOI: | 10.1021/acs.orglett.2c02839 |