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- W2027520669 abstract "The stereochemical course of three new simple methodologies for the preparation of α-amino-β-hydroxyacids starting from dibenzylaminoacetates as synthetic equivalents of glycine is described. While the aldol-type condensation via lithium enolates gave results highly dependent on the aldehyde employed, producing in some cases diastereoselectivities up to 5:1 for the anti isomers, the acid-catalysed aldol condensation of silyl ketene acetals yielded predominantly syn adducts with selectivities from 5:1 to 32:1. Finally the acylation-reduction procedure gave the best results in terms of yields and stereoselectivities, affording syn isomers with excellent induction (⩾ 13 : 1)." @default.
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- W2027520669 date "1988-01-01" @default.
- W2027520669 modified "2023-09-25" @default.
- W2027520669 title "Dibenzylaminoacetates as useful synthetic equivalents of glycine in the synthesis of α-amino-β-hydroxyacids1" @default.
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- W2027520669 doi "https://doi.org/10.1016/s0040-4020(01)85997-4" @default.
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