Catalytic Acylation of Amines with Aldehydes or Aldoximes
作者:C. Liana Allen、Simge Davulcu、Jonathan M. J. Williams
DOI:10.1021/ol101978h
日期:2010.11.19
The simple nickel salt NiCl2 center dot 6H(2)O catalyzes the coupling of aldoximes with amines to give secondary or tertiary amide products. The aldoxime can be prepared in situ from the corresponding aldehyde. The use of O-18-labeled oximes has allowed insight into the mechanism of this reaction.
Transamidation of primary amides with amines catalyzed by zirconocene dichloride
作者:Benjamin N. Atkinson、A. Rosie Chhatwal、Helen V. Lomax、James W. Walton、Jonathan M. J. Williams
DOI:10.1039/c2cc37427g
日期:——
Zirconocene dichloride (Cp(2)ZrCl(2)) has been shown to be an effectivecatalyst for the transamidation of primaryamides with amines in cyclohexane at 80 degrees C in 5-24 hours. For favourable substrates, the reaction can be performed at temperatures as low as 30 degrees C.