158261-85-9Relevant academic research and scientific papers
Efficient synthetic method for β-Enamino esters catalyzed by Yb(OTf)3 under solvent-free conditions
Varala, Ravi,Nuvula, Sreelatha,Adapa, Srinivas R.
, p. 921 - 924 (2006)
A wide range of ?-enamino esters have been synthesized in moderate to excellent yields by reacting 1,3-dicarbonyl compounds with amines in the presence of catalytic amounts of Yb(OTf)3 (2 mol%). The reaction proceeds smoothly at ambient temperature under solvent-free conditions. The catalyst can be recovered and reused. CSIRO 2006.
ZrCl4-catalyzed efficient synthesis of enaminones and enamino esters under solvent-free conditions
Lin, Jin,Zhang, Li-Feng
, p. 77 - 81 (2007)
A facile synthesis of β-enaminones and enamino esters by condensation of β-dicarbonyl compounds with differently substituted amines in the presence of ZrCl4 under solvent-free conditions is reported.
A mild method for the synthesis of β-enaminones and β-enamino esters using KH2P04 as catalyst
Xu, Feng,Lv, Hong-Xia,Wang, Jin-Ping,Tian, You-Ping,Wang, Jian-Jun
experimental part, p. 707 - 710 (2009/10/02)
β-Enaminones and β-enamino esters have been produced by the direct condensation of amines with β-diketones and β-ketoesters using KH2P04 as catalyst under mild, solvent-free conditions.
An efficient method for the enamination of 1,3-dicarbonyl compounds with ceric ammonium nitrate (CAN)
Mo, Li-Ping,Liu, Shu-Fen,Li, Wan-Zhi
, p. 879 - 884 (2008/02/11)
An efficient method for the enamination of 1,3-dicarbonyl compounds by employing ceric ammonium nitrate (CAN) as the catalyst has been described. A variety of β-amino-α,β-unsaturated ketones and esters have been synthesized in excellent yield within a short reaction time under solvent-free conditions.
Phosphotungstic acid catalysed synthesis of β-enamino compounds under solvent-free conditions
Li, Geng-Chen
, p. 696 - 698 (2008/09/20)
A convenient eco-friendly procedure has been developed for the synthesis of β-enaminones and β-enamino esters by reacting 1,3-dicarbonyl compounds with amines in the presence of catalytic amounts of phosphotungstic acid (H3PW12O40,1 mol%). The reaction proceeds smoothly at room temperature under solvent-free conditions and gives the corresponding β-enamino compounds in high to excellent yields.
A novel enamination of β-dicarbonyl compounds catalyzed by Bi(TFA)3 immobilized on molten TBAB
Khodaei, Mohammad M.,Khosropour, Ahmad R.,Kookhazadeh, Mehdi
, p. 209 - 212 (2007/10/03)
Enamination of a wide variety of primary amines was successfully carried out in the presence of catalytic amounts of bismuth(III) trifluoroacetate immobilized on molten tetrabutylammonium bromide as "green" media under mild conditions. This new system of the catalyst is recyclable and reusable. Generally, the results of the reaction in tetrabutylammonium bromide is better than the previously obtained results in water because of their yields and reaction times.
