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- W3036818122 endingPage "21590" @default.
- W3036818122 startingPage "21585" @default.
- W3036818122 abstract "Abstract The first general and regioselective Pd‐catalyzed cyclocarbonylation to give α‐methylene‐β‐lactones is reported. Key to the success for this process is the use of a specific sterically demanding phosphine ligand based on N ‐arylated imidazole ( L11 ) in the presence of Pd(MeCN) 2 Cl 2 as pre‐catalyst. A variety of easily available alkynols provide under additive‐free conditions the corresponding α‐methylene‐β‐lactones in moderate to good yields with excellent regio‐ and diastereoselectivity. The applicability of this novel methodology is showcased by the direct carbonylation of biologically active molecules including natural products." @default.
- W3036818122 created "2020-06-25" @default.
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- W3036818122 creator A5087368338 @default.
- W3036818122 date "2020-09-17" @default.
- W3036818122 modified "2023-10-08" @default.
- W3036818122 title "Ligand‐Controlled Palladium‐Catalyzed Carbonylation of Alkynols: Highly Selective Synthesis of α‐Methylene‐β‐Lactones" @default.
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