An efficient enantiomeric three step synthesis of β-amino acids (esters)
Autor: | M.‐J. Wu, Lendon N. Pridgen, Mohamed K. Mokhallalati |
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Rok vydání: | 1993 |
Předmět: | |
Zdroj: | Tetrahedron Letters. 34:47-50 |
ISSN: | 0040-4039 |
DOI: | 10.1016/s0040-4039(00)60054-0 |
Popis: | Ethyl tributylstannylacetate was reacted with (R)-2-aryl or alkyl-1,3-oxazolidines 6 under very specific (ZnCl2/Et2O·BF3, 0.5 equiv each) Lewis Acid catalysed conditions to yield (1R, 1′R)-N-2′-hydroxy-1′-phenylethyl-1-aryl or alkyl-2-carboethoxyethylamine 8 in 91–99% de. The amino alcohol products 8 were converted to aromatic and aliphatic β-amino esters 9, useful precursors to β-lactams. |
Databáze: | OpenAIRE |
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