24334-81-4Relevant academic research and scientific papers
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.]
Influence of the structure on the antioxidant activity of tetradentate schiff bases and their copper(II) complexes: Possible mechanisms
Aburas, Najat M.,Stevanovic?, Nikola R.,Milc?ic?, Milos? K.,Lolic?, Aleksandar D.,Natic?, Maja M.,Tes?ic?, Z?ivoslav Lj.,Baos?ic?, Rada M.
, p. 1322 - 1328 (2013/09/24)
The influence of the structure on the antioxidant activity of a series of Schiff bases and their copper(II) complexes as well as possible mechanisms of antioxidant activity were investigated. Schiff bases are derived from the condensation of ethane-1,2-di
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.
Silica-supported LiHSO4 as a highly efficient, heterogeneous and reusable catalytic system for the solvent-free synthesis of β-enaminones and β-enamino esters
Hasaninejad,Zare,Mohammadizadeh,Shekouhy
experimental part, p. 69 - 76 (2010/10/21)
A highly efficient, simple and green procedure for the synthesis of β-enaminones and β-enamino esters is described. The reaction of aromatic and aliphatic amines with β-dicarbonyl compounds using catalytic amount of silica-supported LiHSO4 (LiHSO4/SiO2) under solvent-free conditions at 80 °C affords the title compounds 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.
Enamination of β-dicarbonyl compounds catalyzed by CeCl 3·7H2O at ambient conditions: Ionic liquid and solvent-free media
Khodaei, Mohammad Mehdi,Khosropour, Ahmad Reza,Kookhazadeh, Mehdi
, p. 1980 - 1984 (2007/10/03)
Enamination of a wide various primary amines was successfully carried out in the presence of catalytic amounts of cerium chloride heptahydrate in ionic liquid and solvent-free conditions as 'green' media under mild reaction conditions.
Reactions of β-Sulfenyl α,β-Unsaturated Ketones with Guanidine, Amidines and Diamines
Nishio, Takehiko,Tokunaga, Tatsuhiro,Omote, Yoshimori
, p. 405 - 407 (2007/10/02)
β-Sulfenyl α,β-unsaturated ketones 1a-c reacted with guanidine or amidines to give pyrimidine derivatives 3 in 14-76percent yields.Treatment of ketones 1 with diamines such as ethylenediamine and o-phenylenediamine afforded the seven-membered heterocycles, 2,3-dihydro-1,4-diazepine 5 and 2,3-benzo-1,4-diazepines 8a-c.
Oxidative S-Dealkylation Reaction of Sulfide Catalyzed by Co(II)(bzacen)
Watanabe, Yoshihito,Numata, Tatsuo,Oae, Shigeru
, p. 1915 - 1920 (2007/10/02)
In the oxygenation reaction of alkyl sulfides with Co(II)(bzacen)-O2 system, oxidative S-C bond cleavage (S-dealkylation) was found to take place exclusively.The reactivity of S-dealkylation reaction was dependent markedly on both acidity of α-methylene and steric hindrance of alkyl sulfide.The peroxo-Co(III) species is presumed to be the intermediate in this S-dealkylation reaction.
