Synthesis, crystal structure and antibacterial studies of dihydropyrimidines and their regioselectively oxidized products
作者:Alakbar E. Huseynzada、Christian Jelch、Haji Vahid N. Akhundzada、Sarra Soudani、Cherif Ben Nasr、Aygun Israyilova、Filippo Doria、Ulviyya A. Hasanova、Rana F. Khankishiyeva、Mauro Freccero
DOI:10.1039/d0ra10255e
日期:——
Known methods of synthesis of dihydropyrimidines and their oxidized products were modified, the impact of hydrogen bonds on stabilization of preferred tautomer and biological activities were studied.
对已知的二氢嘧啶及其氧化产物的合成方法进行了改进,研究了氢键对优选互变异构体稳定和生物活性的影响。
Fe3O4 Nanoparticles as an Efficient and Magnetically Recoverable Catalyst for the Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones under Solvent-Free Conditions
The catalytic activity of Fe3O4 nanoparticles (NPs) in a one-pot three component condensation reaction consisting of an aromatic aldehyde, urea or thiourea, and a β-dicarbonyl under solvent-free conditions was investigated. This reaction affords the corresponding dihydropyrimidinones (thiones) in high to excellent yields. Compared with the classical Biginelli reactions this method consistently gives
Solvent-free synthesis of monastrol derivatives catalyzed by NaHSO4
作者:Qingfang Cheng、Qifa Wang、Xingyou Xu、Mingjie Ruan、Hailun Yao、Xujie Yang
DOI:10.1002/jhet.368
日期:——
Monastrolderivatives were synthesized by environment‐friendly three component condensation reaction of salicylaldehyde analogues, β‐ketoester, and urea or thiourea under solvent‐free conditions with NaHSO4 as catalyst in high yields. The reactions formed two different monastrol products, 4‐(2‐hydroxyphenyl)pyrimidines 4 and 9‐ methyl‐ 11‐oxo(or thioxo)‐8‐oxa‐10,12‐diazatricyclotrideca derivatives
Crystal structure, Hirshfeld surface analysis, computational and antifungal studies of dihydropyrimidines on the basis of salicylaldehyde derivatives
作者:Alakbar Huseynzada、Christian Jelsch、Haji Vahid Akhundzada、Sarra Soudani、Cherif Ben Nasr、Koray Sayin、Mustafa Demiralp、Ulviyya Hasanova、Goncha Eyvazova、Zarema Gakhramanova、Vagif Abbasov
DOI:10.1007/s13738-022-02659-9
日期:2023.1
We herein reported the synthesis of dihydropyrimidines 1 and 2 on the basis of nitro and brominated salicylaldehyde derivatives by Biginellireaction in microwave conditions in the presence of cheap low toxic copper triflate. The structures of both compounds were investigated by the X-ray single-crystal diffraction method. The presence of non-covalent interactions and their impact on crystal structure
Diopside nanoparticles from rice husk ash: green synthesis, characterization and investigation of congo red dye removal, antibacterial properties, and Biginelli catalytic reaction (statistical approach to optimize parameters)