Enantioselective synthesis of α-amino acetals (aldehydes) via nucleophilic 1,2-addition to chiral 1,3-oxazolidines
Autor: | K.Raman Muralidharan, Mohamed K. Mokhallalati, Lendon N. Pridgen |
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Rok vydání: | 1994 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 35:7489-7492 |
ISSN: | 0040-4039 |
DOI: | 10.1016/s0040-4039(00)78325-0 |
Popis: | A general procedure for the diastereoselective addition of Grignard reagents to chiral 2-(4,4,6,6-tetramethyl-1,3-dioxan-2-yl)-4-substituted-1,3-oxazolidines 4 is described. Chemical yields and diastereoselectivities are generally excellent (91–100% de). The resulting amino alcohols 6 may be oxidatively or reductively cleaved to enantiomerically enriched α-amino acetals 3 which are useful chiral building blocks. |
Databáze: | OpenAIRE |
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