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- W2949308813 abstract "Abstract The cationic complex [Pd(η 3 -C 3 H 5 )(sparteine)]PF 6 ( 6 ) was found to be a suitable catalyst precursor for the asymmetric alkylation of allylic acetates with Na[CH(COOMe) 2 ] as the nucleophile. This constitutes one of the first and still rare examples of a phosphine-free system for this type of Pd-catalyzed reaction. Using 5 mol % of 6 , alkylation products were obtained in up to 90% isolated yield and 85 % enandomeric excess. The alkylation reaction was shown to occur with overall retention of configuration, indicating an analogous mechanism to the one previously proposed for phosphine-containing catalysts. The reactivity of allylic acetates is strongly dependent upon the nature of the substituents, open-chain aliphatic substrates being unreactive." @default.
- W2949308813 created "2019-06-27" @default.
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- W2949308813 date "2010-08-22" @default.
- W2949308813 modified "2023-09-26" @default.
- W2949308813 title "ChemInform Abstract: Asymmetric Allylic Alkylation Catalyzed by Palladium-Sparteine Complexes." @default.
- W2949308813 cites W2017412103 @default.
- W2949308813 doi "https://doi.org/10.1002/chin.199144109" @default.
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