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
Synthesis of Nitrogen-Containing Phenoxyacetic Acid Derivatives
作者:E. T. Yamansarova、O. S. Kukovinets、R. A. Zainullin、F. Z. Galin、M. I. Abdullin
DOI:10.1007/s11178-005-0201-3
日期:2005.4
Nitrogen-containing phenoxyacetic acid derivatives were synthesized by reactions of substituted phenoxyacetic acids with amines, urea, and ethyl carbamate.
A One-Pot, fast, and efficient amidation of carboxylic acids, α-amino acids and sulfonic acids using pph<sub>3</sub>/<i>n</i>-chlorobenzotriazole system
作者:Hamed Rouhi-Saadabad、Batool Akhlaghinia
DOI:10.1080/10426507.2015.1024313
日期:2015.10.3
Triphenylphosphine (PPh3)/N-chlorobenzotriazole (NCBT), and amine (primary and secondary aliphatic amines and also substituted anilines) in CH2Cl2 efficiently converted carboxylic acids, -amino acids, and sulfonic acids to the corresponding amides and sulfonamides at room temperature. Good to excellent yields, inexpensive, and fast reaction conditions are the important features of this procedure.