First synthesis of enantiomerically pure N-protected β-amino-α-keto esters from α-amino acids and dipeptides
摘要:
A racemization-free route from N-protected alpha-amino acids and dipeptides to N-protected beta-amino-alpha-keto esters is described, involving the sequence: diazoketone formation. Wolff rearrangement in methanol, diazo transfer, and oxidation with dimethyldioxirane.