Probing the catalytic activity of highly efficient sulfonic acid fabricated cobalt ferrite magnetic nanoparticles for the clean and scalable synthesis of dihydro, spiro and bis quinazolinones
作者:Priyanka Yadav、Satish K. Awasthi
DOI:10.1039/d1nj01149a
日期:——
An exceptionally productive, rapid, simple, and eco-friendly approach for the synthesis of 2,3-dihydroquinazolin-4(1H)-one has been developed utilizing acidic magnetically retrievable cobalt ferrite nanoparticles (CFNP@SO3H).
Silica Sulfuric Acid-coated Fe3O4 Nanoparticles as a Highly Efficient and Reusable Solid Acid Catalyst for the Green Synthesis of 2,3- Dihydroquinazolin-4(1H)-ones under Solvent-free Conditions
作者:Monire Beyki、Mehdi Fallah-Mehrjardi
DOI:10.2174/1570178614666170711144740
日期:2017.12.11
An efficient and eco-friendly procedure for the synthesis of 2,3-dihydroquinazolin-4(1H)- ones and spiroquinazolinones in the presence of sulfuricacid functionalized silica-coated magnetite nanoparticles under solvent-freeconditions has been described. The reactions are completed in short times, and the products are obtained in high isolated yields without any undesirable side reaction. This method
Synthesis of 2-aryl-2,3-dihydroquinazoline-4(1H)-ones is described by using new and novel heterogeneous catalyst, Indion Ina 225H resin. Anthranilamide was reacted with a series of aromatic aldehydes in presence of resin to afford various 2-aryl substituted 2,3-dihydroquinazoline-4(1H)-ones. The resin employed in these reactions can be recovered and reused.
使用新型异相催化剂 Indion Ina 225H 树脂合成了 2-芳基-2,3-二氢喹唑啉-4(1H)-酮。在树脂存在下,蒽酰胺与一系列芳香醛发生反应,生成各种 2-芳基取代的 2,3-二氢喹唑啉-4(1H)-酮。在这些反应中使用的树脂可以回收和重复使用。
6-Alkylamino- and 2,3-Dihydro-3‘-methoxy-2-phenyl-4-quinazolinones and Related Compounds: Their Synthesis, Cytotoxicity, and Inhibition of Tubulin Polymerization
作者:Mann-Jen Hour、Li-Jiau Huang、Sheng-Chu Kuo、Yi Xia、Kenneth Bastow、Yuka Nakanishi、Ernest Hamel、Kuo-Hsiung Lee
DOI:10.1021/jm000151c
日期:2000.11.1
As part of our continuing search for potential anticancer candidates among 2-phenyl-4-quinolones and 2-phenyl-4-quinazolinones, two series of 6,7,2',3',4',5'-substituted 2-phenyl-4-quinazolinones and 6,2',3',4',5'-substituted 2,3-dihydro-2-phenyl-4-quinazolinones were synthesized and evaluated for cytotoxicity and as inhibitors of tubulin polymerization. In general, a good correlation was found between the two activities. Five of the 6-substituted heterocyclic 2-phenyl-4-quinozolinones (37-51) showed significant cytotoxicity against a panel of human tumor cell lines with EC50 values in the low micromolar to nanomolar concentration ranges. Compound 38 was the most potent of these compounds, as well as the most potent inhibitor of tubulin polymerization in this series. The activity of 38 was in the same range as those of the antimitotic natural products, colchicine, podophyllotoxin, and combretastatin A-4. Substituted 2-phenyl-4-quinazolinones and 2,3-dihydro-2-phenyl-4-quinazolinones also displayed highly selective cytotoxicity against the ovarian cancer 1A9 and P-gp resistant KB-VIN cell lines.
A Brønsted Acid Ionic Liquid Immobilized on Fe3O4@SiO2 Nanoparticles as an Efficient and Reusable Solid Acid Catalyst for the Synthesis of 2,3-Dihydroquinazolin-4(1H)-ones
作者:M. Fallah-Mehrjardi、S. Kalantari
DOI:10.1134/s1070428020020207
日期:2020.2
In the present study, an efficient and magnetically recoverable Bronsted acid ionic liquid, 1-methyl-3-[3-(triethoxysilyl)propyl]-1H-imidazol-3-ium hydrogen sulfate, immobilized on the surface of Fe3O4@SiO2 magnetic nanoparticles (Fe3O4@SiO2-ImHSO(4)) has been used for a high-yield synthesis of 2,3-dihydroquinazolin-4(1H)-ones through the condensation of anthranilamide with aldehydes and ketones in EtOH at room temperature or under reflux. The significant features of the present protocol are short reaction times, high yields of products, ecofriendly reaction conditions, simple work-up, and reusability of the catalyst. The catalyst can be simply magnetically recovered and reused at least five times without considerable loss of its catalytic activity.