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- W2949778967 abstract "The kinetic resolution of azlactones by the Lewis-acid-mediated transfer of an isopropoxide ligand from the chiral ligand sphere of Ti-TADDOLate is described. The reactions proceed with in-situ racemization of the starting material to afford highly enantiomerically enriched N-benzoyl-amino acid isopropylesters (er >; 95:5 after recrystallization). The absolute configuration of the major enantiomer of N-benzoyl-phenylalanine isopropyl ester and its analogs with other aromatic substituents was shown to be (S)-(+) when the (R,R)-Ti-TADDOLate was employed. Only benzyl-substituted azlactones can be opened enantioselectively by the method described here." @default.
- W2949778967 created "2019-06-27" @default.
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- W2949778967 date "1999-01-01" @default.
- W2949778967 modified "2023-10-14" @default.
- W2949778967 title "Ring opening with kinetic resolution of azlactones by Ti-TADDOLates" @default.
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- W2949778967 doi "https://doi.org/10.1016/s0040-4020(98)01064-3" @default.
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