Preparation of fused β-lactams through Weinreb amide α-anions
摘要:
Enantiomerically pure beta-lactams bearing a Weinreb amide functionality at the C3 position have been shown to be excellent substrates for alpha-alkylation reactions, generating C3 quaternary centers with predictable absolute stereochemistry. In addition, oxidative coupling of C3/C4 dianions affords entry to fused beta,gamma-bislactam systems. (C) 2014 Elsevier Ltd. All rights reserved.
Preparation of fused β-lactams through Weinreb amide α-anions
作者:William M. Hewitt、Michael Egger、Nathaniel B. Zuckerman、Joseph P. Konopelski
DOI:10.1016/j.tet.2014.05.054
日期:2014.8
Enantiomerically pure beta-lactams bearing a Weinreb amide functionality at the C3 position have been shown to be excellent substrates for alpha-alkylation reactions, generating C3 quaternary centers with predictable absolute stereochemistry. In addition, oxidative coupling of C3/C4 dianions affords entry to fused beta,gamma-bislactam systems. (C) 2014 Elsevier Ltd. All rights reserved.