24334-81-4Relevant articles and documents
Standard enthalpies of formation of N,N'-ethylenebis(4-aminopent-3-en-2-one) and N,N'-ethylenebis(3-amino-1-phenylbut-2-en-1-one)
Silva, Manuel A. V. Ribeiro da,Silva, Maria D. M. C. Ribeiro da,Monte, Manuel J. S.,Goncalves, Jorge M.,Fernandes, Elia M. R.
, p. 613 - 622 (1995)
The standard (p0 = 0.1 MPa) molar enthalpies of combustion, at the temperature 298.15 K for crystalline N,N'-ethylenebis(4-aminopent-3-en-2-one), 2, H2ACACEN, and N,N'-ethylenebis(3-amino-1-phenylbut-2-en-1-one), H2BZACEN,
Nano-SiO2 catalyzed synthesis of β-enaminones under solvent free conditions
Alinezhad, Heshmatollah,Tajbakhsh, Mahmood,Sarkati, Malihe Norouzi,Zare, Mahboobe
, p. 1591 - 1596 (2016/08/16)
Nano-SiO2 efficiently catalyzed the synthesis of β-enaminones using direct condensation of various (cyclic and acyclic) β-diketones with aromatic and aliphatic amines under solvent-free conditions. This eco-friendly catalyst can be recovered and reused without significant loss of activity. This methodology provides a simple synthetic route to enaminones in excellent yields at room temperature. Graphical abstract: [Figure not available: see fulltext.]
A green solventless protocol for the synthesis of β-Enaminones and β -Enamino esters using silica sulfuric acid as a highly efficient, heterogeneous and reusable catalyst
Hasaninejad, Alireza,Zare, Abdolkarim,Mohammadizadeh, Mohammad Reza,Shekouhy, Mohsen,Moosavi-Zare, Ahmad Reza
experimental part, p. 1546 - 1554 (2011/12/05)
Silica sulfuric acid is utilized as a green, highly efficient, heterogeneous and recyclable catalyst for the preparation of β-enaminones and β -enamino esters from amines and β -dicarbonyl compounds under solvent-free conditions at 80 °C. Using this method, the title compounds are produced in high to excellent yields and in short reaction times.
Cerium(III) chloride heptahydrate (CeCl3·7H2O) as an efficient enamination catalyst in aqueous media
Khodaei,Khosropour,Kookhazadeh
, p. 1445 - 1448 (2007/10/03)
Cerium(III) chloride heptahydrate CeCl3·H2O catalyzes enamination of β-dicarbonyl compounds with primary amines in aqueous medium at room temperature to afford the corresponding β-enamino ketones with high chemoselectivity.