Synthesis of Hydroxamic Esters via Alkoxyaminocarbonylation of β-Dicarbonyl Compounds
摘要:
N-t-Butoxycarbonyl-O-sulfonyl-substitute hydroxylamines react with soft enolates to yield O-t-butoxycarbonylamino derivatives rather than the expected Boc-protected amino acids. The reaction is limited to enolates of beta-dicarbonyl compounds. Decarboxylation of the resultant tricarbonyl compound affords malonyl alpha-alkyl O-t-butoxycarbonylamino derivatives.
Synthesis of Hydroxamic Esters via Alkoxyaminocarbonylation of β-Dicarbonyl Compounds
摘要:
N-t-Butoxycarbonyl-O-sulfonyl-substitute hydroxylamines react with soft enolates to yield O-t-butoxycarbonylamino derivatives rather than the expected Boc-protected amino acids. The reaction is limited to enolates of beta-dicarbonyl compounds. Decarboxylation of the resultant tricarbonyl compound affords malonyl alpha-alkyl O-t-butoxycarbonylamino derivatives.