Biocatalytic synthesis of diaryl disulphides and their bio-evaluation as potent inhibitors of drug-resistant <i>Staphylococcus aureus</i>
作者:Saima、Isha Soni、Aditya G. Lavekar、Manjulika Shukla、Danish Equbal、Arun K. Sinha、Sidharth Chopra
DOI:10.1002/ddr.21507
日期:2019.2
novel molecules to thwart the continuing emergence of antimicrobial resistance. Disulphide containing small molecules has gained prominence as antibacterials. As their conventional synthesis requires tedious synthetic procedure and sometimes toxic reagents, a green and environmentally benign protocol for their synthesis has been developed through which a series of molecules were obtained and evaluated
Visible-light photocatalytic selective aerobic oxidation of thiols to disulfides on anatase TiO2
作者:Hui Xu、Ji-Long Shi、Shaoshuai Lyu、Xianjun Lang
DOI:10.1016/s1872-2067(20)63640-3
日期:2020.10
Abstract This work presents the visible-light photocatalyticselectiveoxidation of thiols to disulfides with molecular oxygen (O2) on anatase TiO2. The high specific surface area of anatase TiO2 proved to be especially critical in conferring high photocatalytic activity. Herein, surface complexation between thiol and TiO2 gives rise to photocatalytic activity under irradiation with 520 nm green light-emitting
TEMPO visible light photocatalysis: The selective aerobic oxidation of thiols to disulfides
作者:Hui Xu、Yu-Fei Zhang、Xianjun Lang
DOI:10.1016/j.cclet.2019.10.024
日期:2020.6
orangocatalysis that usually work in synergy with transition-metal catalysis or semiconductor photocatalysis. Here, TEMPO was turned into a visiblelight photocatalyst to conduct the selective aerobicoxidation of thiols into disulfides. With O2 as an oxidant, a mild and efficient protocol for the selective oxidation of thiols into disulfides including symmetrical and unsymmetrical ones with 5 mol% of TEPMO
Bovine serum albumin triggered waste-free aerobic oxidative coupling of thiols into disulphides on water: An extended synthesis of bioactive dithiobis(phenylene)bis(benzylideneimine) via sequential oxidative coupling–condensation reactions in one pot from aminothiophenol and benzaldehyde
作者:Saima、Aditya G. Lavekar、Rajesh Kumar、Arun K. Sinha
DOI:10.1016/j.molcatb.2015.03.008
日期:2015.6
formation of disulphides (SS) without using any metal/non-metal complexes, bases and additives, which renders the process environmentally benign and economically attractive with good recyclability (up to four cycles). The developed green protocol was further extended for synthesis of diallyldisulphide (DADS), an important constituent of natural occurring allicin. Among various synthesized disulphides, bis
Structural and Solvent Effects on the C–S Bond Cleavage in Aryl Triphenylmethyl Sulfide Radical Cations
作者:Tiziana Del Giacco、Osvaldo Lanzalunga、Marco Mazzonna、Paolo Mencarelli
DOI:10.1021/jo202418d
日期:2012.2.17
bond cleavage in the radical cations 1•+–5•+ have been observed in the steady-state photolysis experiments. Time-resolved LFP showed first-order decay of the radical cations accompanied by formation of the triphenylmethylcation. A significant decrease of the C–S bond cleavage rate constants was observed by increasing the electron-donating power of the arylsulfenyl substituent, that is, by increasing
一系列的稳态和激光闪光光解(LFP)的研究芳基三苯甲基硫化物[ 1,3,4-(CH 3 O)2 -C 6 H ^ 3 SC(C 6 H ^ 5)3 ; 2,4-CH 3 -O-C 6 H ^ 4 SC(C 6 H ^ 5)3 ; 3,4 -CH 3 -C 6 H 4 SC(C 6 H 5)3 ; 4,C 6 H 5 SC(C6 H 5)3 ; 和5,4 -溴-C 6 H ^ 4 SC(C 6 H ^ 5)3 ]已在的存在下进行Ñ -methoxyphenanthridinium在CH六氟磷酸盐3 CN,CH 2氯2,CH 2氯2 / CH 3 CN和CH 2 Cl 2 / CH 3 OH混合物。源自阳离子中1– + – 5 •+的C–S键裂解的产物在稳态光解实验中已经观察到。时间分辨的LFP显示出自由基阳离子的一阶衰变,伴随着三苯基甲基阳离子的形成。通过增加芳基亚硫基取代基的供电子能力,即