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- W2949206543 abstract "Abstract Chiral bis(oxazoline)–copper(I) complexes were found to be effective catalysts for the enantioselective cyclopropanation reaction of trans-cinnamate esters exploiting an argon flow mediated diazomethane addition method. After optimization of the catalyst structure, good yields and enantiomeric excesses were obtained with electron-poor methyl cinnamate derivatives. Sterically demanding esters gave lower yields and enantioselectivities. The correlation between the product enantiopurities and the σ+ values of the aromatic para-substituents was shown to be linear in a Hammet-type plot." @default.
- W2949206543 created "2019-06-27" @default.
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- W2949206543 date "2003-07-29" @default.
- W2949206543 modified "2023-10-02" @default.
- W2949206543 title "Bis(oxazoline)×Copper(I)-Catalyzed Enantioselective Cyclopropanation of Cinnamate Esters with Diazomethane." @default.
- W2949206543 cites W2025762827 @default.
- W2949206543 doi "https://doi.org/10.1002/chin.200330041" @default.
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