94418-01-6Relevant academic research and scientific papers
REACTIONS OF 4-AMINO-3-PENTEN-2-ONE AND ITS N-SUBSTITUTED REDIVATIVES WITH DIAZONIUM IONS
Machacek, Vladimir,Cegan, Alexandr,Halama, Ales,Roznavska, Olga,Sterba, Vojeslav
, p. 1367 - 1379 (1995)
Azo coupling reactions of benzenediazonium salts with substituted 4-amino-3-penten-2-ones take place at the C-3 atom. 1H and 13C NMR spectroscopy has been used to study the structure of both the starting enaminones and coupling products.In CDCl3, 3-(4-chl
A novel and reusable magnetic nanocatalyst developed based on graphene oxide incorporated strontium nanoparticles for the facial synthesis of β-enamino ketones under solvent-free conditions
Mousavi, Seyyed Rasul,Sereshti, Hassan,Rashidi Nodeh, Hamid,Foroumadi, Alireza
, (2018/10/26)
A novel magnetic SrFeGO nanocatalyst (NC) was synthesized through a simple sol–gel technique by introducing strontium and iron oxide nanoparticles onto graphene. The synthesized NC was characterized using FT-IR and FE-SEM. Subsequently, the catalytic activity of SrFeGO was tested in a reaction between β-dicarbonyl compounds and aniline derivatives to gain β-enamino ketone derivatives under solvent-free conditions. It was found that SrFeGO NC is a potential catalyst for the synthesis of β-enamino ketones. The β-enamino ketone produced by such reactions could be isolated in high purity without the need for chromatographic purifications. The newly prepared magnetic graphene oxide nanocomposite could be recovered and reused for numerous times with no significant decrease in efficiency. Moreover, the protocol has the advantages of excellent yielding (up to 98%) in short a reaction time, benefitting an easy workup procedure and being environmentally friendly.
K-10 clay as a reusable catalyst for the solvent-free, MW-induced synthesis of enaminones
Marvi, Omid,Giahi, Masoud,Ayub, Pouran Pur,Nikpasand, Mohammad
, p. 921 - 926 (2014/11/07)
A series of β-amino-a,β-unsaturated ketones and esters were synthesized in good to excellent yields from the reaction of different amines with 1,3-dicarbonyl compounds in solvent-free media using montmorillonite K-10 clay as.
Facile synthesis of substituted pyrrole-fused isocoumarins from ninhydrin
Pathak, Sudipta,Kundu, Ashis,Pramanik, Animesh
experimental part, p. 5180 - 5183 (2011/10/12)
A simple and efficient procedure has been developed for the synthesis of substituted pyrrole-fused isocoumarins from easily available ninhydrin. The cyclic hemiaminal dihydroxy-indenopyrroles, the adducts of ninhydrin with enamines of acetylacetone, give pyrrole-fused isocoumarins upon heating in acidic medium. The process constitutes an interesting acid-catalyzed rearrangement to eight-membered lactams followed by intramolecular cyclization involving the amino and keto groups.
B2O3/Al2O3 as a new, highly efficient and reusable heterogeneous catalyst for the selective synthesis of β-enamino ketones and esters under solvent-free conditions
Chen, Jiu-Xi,Zhang, Chang-Fu,Gao, Wen-Xia,Jin, Hui-Le,Ding, Jin-Chang,Wu, Hua-Yue
experimental part, p. 1552 - 1556 (2010/11/16)
Boron oxide adsorbed on alumina (B2O3/Al 2O3) has been found to be a new and highly efficient heterogeneous catalyst for the synthesis of β-enamino ketones and esters by the enamination of various primary and secondary amines with β-dicarbonyl compounds under solvent-free conditions. The important features of this methodology are broad substrate scope, high yield, no requirement of metal catalysts, high regio-and chemoselectivity and environmental friendliness. In addition, the catalyst could be recovered easily after the reactions and reused without evident loss of reactivity.
