Ruthenium(II) complexes with 2-methyl-3-substituted (3H)-quinazolin-4-ones
作者:K.Laxma Reddy、P. Lingaiah、K.Veera Reddy
DOI:10.1016/s0277-5387(00)84550-7
日期:1986.1
complexes of some polydentate ON, OO and ONO donors in the form of 2-methyl-3-substituted (3H)-quinazolin-4-ones have been synthesized and studied. The reactionbetween RuCl2(DMSO)4 and the uninegative bidentate ligands yielded complexes of the type Ru(DMSO)2(OO)2 (OO = MHQ, PHQ, MHEQ, MHPQ or MCMQ), displacing only two DMSO groups along with chlorides, whereas the neutral bidentate ligands gave
合成了一些多齿ON,OO和ONO供体的钌(II)配合物,它们以2-甲基-3-取代的(3 H)-喹唑啉-4-酮的形式存在,并且研究过。RuCl 2(DMSO)4与非负二齿配体之间的反应产生Ru(DMSO)2(OO)2类型的配合物(OO= MHQ,PHQ,MHEQ,MHPQ或MCMQ),仅取代了两个DMSO基团以及氯化物,而中性双齿配体给出RuCl 2(ON)2(ON= MAQ,PAQ,MANQ,PANQ,MAAQ,MAPQ,MPQ或PPQ),取代了所有DMSO基团。然而,具有O = N = O供体的单负性齿状配体(MHAQ)生成了钌(II)的双螯合物。
Organocatalytic Synthesis of Phenols from Diaryliodonium Salts with Water under Metal-Free Conditions
The metal-free synthesis of phenols from diaryliodonium salts with water was developed by using N-benzylpyridin-2-one as an organocatalyst. In this process, sterically congested, functionalized, and heterocycle-containing iodonium salts were smoothly converted to the desired products, and the clofibrate and mecloqualone derivatives were also synthesized in high yields. In addition, the gram-scale experiment
A SERIES of new compounds characterized by presence of quinazoline scaffold and phosphorothioate moiety in their molecular structure, was prepared through reacting Japanese reagent (JR, 1a) and Lawesson reagent (LR, 1b) with quinazoline-4-ones (3a-e) in boiling toluene. The expected quinazoline-4-thiones were also formed and well identified. Molecular docking studies were performed to determine the molecular affinity between the new products and the target protein. The starting quinazolines and ten of the new products were in vitro evaluated as antimicrobial agents using Cephradine and Fluconazole as reference drugs for antibacterial and antifungal assays, respectively. Of particularly, the dioxathiaphosphinane (12) and benzoxaphospholylidene (17) exhibited 15% potent inhibition that equals to Cephradine against Escherichia coli strains.
Reddy, K. Laxma; Chandraiah, A. Rama; Reddy, K. Adinarayan, Indian Journal of Chemistry, Section A: Inorganic, Physical, Theoretical and Analytical
作者:Reddy, K. Laxma、Chandraiah, A. Rama、Reddy, K. Adinarayan