A practical and efficient synthesis of (E)-β-aryl-α,β-unsaturated amides
作者:Chih-Ching Chen、Jung-Chieh Ho、Nein-Chen Chang
DOI:10.1016/j.tet.2008.08.057
日期:2008.11
In this paper, we report a one-step convergent synthesis of (E)-β-monosubstituted α,β-unsaturatedamides 3 from α-sulfonyl acetamide 1 and benzyl bromide derivatives 2.
Ce(III) immobilised on aminated epichlorohydrin-activated agarose matrix – “green” and efficient catalyst for transamidation of carboxamides
作者:Zeinab Zarei、Batool Akhlaghinia
DOI:10.1515/chempap-2015-0168
日期:2015.1.1
“green” catalyst. The catalyst was synthesised by the reaction of the epichlorohydrin-activated agarose matrix with ammonia solution, which was then treated with Ce(NO3)3 · 6H2O. The catalyst (CAEA) was characterised by FT-IR, far IR, CHN, XRD, TGA, and ICP techniques. CAEA is shown to be an effective and reusable heterogeneous catalyst for the transamidation of carboxamides with amines under solvent-free