Petasis boronic acid–Mannich reactions of substituted hydrazines: synthesis of α-hydrazinocarboxylic acids
摘要:
N-1-(Carbamate protected)-N-2-(alkyl or aryl substituted) hydrazines can serve as amine substrates for the Petasis boronic acid-Mannich reaction, providing a practical synthetic route for the preparation of alpha-hydrazinocarboxylic acids. The scope and limitations of this method have been examined. (C) 2002 Published by Elsevier Science Ltd.
Petasis boronic acid–Mannich reactions of substituted hydrazines: synthesis of α-hydrazinocarboxylic acids
作者:David E. Portlock、Dinabandhu Naskar、Laura West、Min Li
DOI:10.1016/s0040-4039(02)01511-3
日期:2002.9
N-1-(Carbamate protected)-N-2-(alkyl or aryl substituted) hydrazines can serve as amine substrates for the Petasis boronic acid-Mannich reaction, providing a practical synthetic route for the preparation of alpha-hydrazinocarboxylic acids. The scope and limitations of this method have been examined. (C) 2002 Published by Elsevier Science Ltd.
The synthesis of aza-β-lactams via tandem Petasis–Ugi multi-component condensation and 1,3-diisopropylcarbodiimide (DIC) condensation reaction
作者:Dinabandhu Naskar、Amrita Roy、William L. Seibel、Laura West、David E. Portlock
DOI:10.1016/s0040-4039(03)01524-7
日期:2003.8
The synthetic utility of a tandem Petasis–Ugi multi-component condensation and 1,3-diisopropylcarbodiimide condensationreactions have been employed to efficiently prepare two to four-dimensional libraries of aza-β-lactams.