1574699-89-0Relevant academic research and scientific papers
Green synthesis of TiO2 nanoparticles as an efficient heterogeneous catalyst with high reusability for synthesis of 1,2-dihydroquinoline derivatives
El-Remaily, Mahmoud Abd El Aleem Ali Ali,Abu-Dief, Ahmed M.,Elhady
, (2019/06/08)
Nano materials find wide applications due to their behavior at nano scale. TiO2 nanoparticles (TiO2 NPs) was synthesized using Neem leaf extract. This is simple, rapid, eco-friendly, cheaper and green tools for TiO2 NPs synthesis using agricultural waste at lower applied temperature. Characterization of the extracted TiO2 NPs was confirmed by XRD, SEM, EDAX, TEM, HR-TEM, SAED, and FT-IR, respectively. The catalytic activity of TiO2 NPs was investigated in synthesis of 1,2-dihydroquinoline derivatives with excellent yields and low cost. Purification of the synthesized 1,2-dihydroquinoline derivatives carried out by easy work-up of non-chromatographic methods.
A Sulfone-Containing Imidazolium-Based Br?nsted Acid Ionic Liquid Catalyst Enables Replacing Dipolar Aprotic Solvents with Butyl Acetate
El-Harairy, Ahmed,Yiliqi,Lai, Bingbing,Vaccaro, Luigi,Li, Minghao,Gu, Yanlong
supporting information, p. 3342 - 3350 (2019/05/15)
Replacing dipolar and aprotic solvents with environmentally benign media has emerged as a new facet of green chemistry. In this paper, a sulfone-containing imidazolium-based Br?nsted acid ionic liquid was prepared and used as a recyclable acid catalyst. The ionic liquid catalyst enables the use of an industrially acceptable and environmentally benign solvent, butyl acetate, as the reaction medium. The ionic liquid/butyl acetate biphasic system was successfully utilized in many organic reactions, which generally relied heavily on dipolar and aprotic solvents. (Figure presented.).
Highly efficient synthesis of polysubstituted 1,2-dihydroquinolines via cascade reaction of α-ketoesters with arylamines mediated by iodine
Zhang, Bao-Qiang,Luo, Yuan,He, Yan-Hong,Guan, Zhi
, p. 1961 - 1966 (2014/03/21)
An efficient strategy enabling the construction of polysubstituted 1,2-dihydroquinoline derivatives mediated by the commercially available, economical, and environmentally benign iodine (3 mol %) under mild conditions was developed. Various arylamines and
