Synthesis and in vitro antifungal activity of 4-substituted phenylguanidinium salts
摘要:
A series of 4-substituted phenylguanidinium derivatives was synthesized and its antimicrobial activity was evaluated in vitro against eight potentially pathogenic strains of fungi.
GRAPHICAL ABSTRACT ABSTRACT A catalyst free and chemoselective oxidation of sulfides to sulfoxides or sulfones was developed using 1,1,2,2-tetrahydroperoxy-1,2-diphenylethane as a new oxidant. This scope has shown the achievement of various sulfoxides and sulfones which were obtained selectively in high yields at room temperature.
Mono- and Dinuclear α-Diimine Nickel(II) and Palladium(II) Complexes in C–S Cross-Coupling
作者:Md Muktadir Talukder、Justin T. Miller、John Michael O. Cue、Chinthaka M. Udamulle、Abhi Bhadran、Michael C. Biewer、Mihaela C. Stefan
DOI:10.1021/acs.organomet.0c00732
日期:2021.1.11
significantly reduced by air and moisture sensitivity, as well as harsh reaction conditions. Herein, we report four highly air- and moisture-stable well-defined mononuclear and bridged dinuclear α-diimine Ni(II) and Pd(II) complexes for C–S cross-coupling. Various ligand frameworks, including acenaphthene- and iminopyridine-based ligands, were employed, and the resulting steric properties of the catalysts were
Synthesis and characterization of magnetic copper ferrite nanoparticles and their catalytic performance in one-pot odorless carbon-sulfur bond formation reactions
application of copper ferrite nanoparticles (CuFe2O4) for one-pot odorless production of arylalkyl thioethers using thiourea and alkyl bromides in wet polyethylene glycol as a green solvent. The catalyst was also successfully applied for one-potsynthesis of symmetrical diaryl trithiocarbonates via the reaction of sodium sulfide, carbon disulfide and aryl iodides under heterogeneous reaction condition. Magnetic
在本文中,我们介绍了使用硫脲和烷基溴化物在湿聚乙二醇作为绿色溶剂的情况下,一锅无味地生产芳族烷基硫醚的铜铁氧体纳米粒子(CuFe 2 O 4)的催化应用。该催化剂也成功地用于一锅合成的对称二芳基三硫代碳酸酯经由异构反应条件下硫化钠,二硫化碳和芳基碘的反应 使用氯化铁(III)和氯化铜(II)合成磁性铜铁氧体纳米粒子,并使用XRD,FT-IR,AAS和TEM分析对其进行表征。使用简单的磁分离法将催化剂循环使用,并在碘苯,硫脲和苄基溴的反应中连续五次重复使用,而不会造成明显的活性损失。
Copper catalyzed oxidation of sulfides to sulfoxides with aqueous hydrogen peroxide
作者:Subbarayan Velusamy、Akkilagunta V. Kumar、Rakesh Saini、T. Punniyamurthy
DOI:10.1016/j.tetlet.2005.03.194
日期:2005.5
Copper(II) complex 1 catalyzes the oxidation of sulfides to sulfoxides with 30% H2O2 in high yields. Addition of a catalytic amount of TEMPO to the reaction mixture enhances the conversion and selectivity. Complex 1 can be recycled without loss of activity.
铜(II)配合物1以高收率催化硫化物氧化为30%H 2 O 2的亚砜。向反应混合物中加入催化量的TEMPO可提高转化率和选择性。配合物1可以循环使用而不会损失活性。
One-Pot Copper-Catalysed Thioetherification of Aryl Halides Using Alcohols and Lawesson's Reagent in Diglyme
作者:Mohammad Gholinejad
DOI:10.1002/ejoc.201500256
日期:2015.7
A new protocol for the thioetherification of structurally varied alcohols with arylhalidesusingLawesson'sreagent, catalysed by copper(I) iodide, and usingdiglyme as a safe solvent was developed. Using this method, the reactions of arylhalides proceeded efficiently, and the desired sulfides were obtained in high to excellent yields. The method usesalcohols as starting materials, which is a significant