Tetrahedron Letters p. 1969 - 1972 (1994)
Update date:2022-08-03
Topics: Lewis acid Column chromatography Yield Nucleophile TLC (thin-layer chromatography) NMR (nuclear magnetic resonance) Protecting group Anhydrous conditions Chelation Workup Stereoselectivity Enolate Inert atmosphere
Reetz, Manfred T.
Roelfing, Karin
Griebenow, Nils
BOC- and Cbz-protected α-amino aldehydes derived from amino acids undergo stereoselective addition reactions with alkyl cuprates and manganese reagents, the chelation-controlled adducts being the major diastereomers (generally ds > 90percent).Undesired ra
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