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- W1974722629 abstract "Several homochiral bis(oxazolines), with asymmetric centers on the oxazoline rings and on the side chains, were prepared from (1S,2S)-(+)-2-amino-1-phenyl-1,3-propanediol in high yields. Asymmetric cyclopropanation of styrene with ethyl diazoacetate in the presence of 1 mol% of copper(I) triflate and the dibenzoyl bis(oxazoline) 5a. gave ethyl 2-phenylcyclopropanecarboxylate in up to 85% ee. The same ligand 5a, was used in the palladium catalysed enantioselective allylic substitution of the 1,3-diphenyl-2-propenyl acetate to give the desired product in up to 90% ee." @default.
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- W1974722629 date "1997-11-01" @default.
- W1974722629 modified "2023-10-18" @default.
- W1974722629 title "New homochiral bis(oxazoline) ligands for asymmetric catalysis" @default.
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- W1974722629 doi "https://doi.org/10.1016/s0957-4166(97)00499-0" @default.
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