{[K.18-Crown-6]Br3}n: a unique tribromide-type and columnar nanotube-like structure for the oxidative coupling of thiols and bromination of some aromatic compounds
作者:Mohammad Ali Zolfigol、Gholamabbas Chehardoli、Sadegh Salehzadeh、Harry Adams、Michael D. Ward
DOI:10.1016/j.tetlet.2007.09.050
日期:2007.11
Reaction of 18-crown-6 with KBr and then with bromine (Br2) afforded a unique tribromide salt with a nanotube-like structure ([K.18-crown-6]Br3}n). Oxidative coupling of thiols and bromination of some aromatic compounds is the first report on the chemistry of this reagent.
thiols with (diacetoxyiodo)benzene (DIB) has been explored in the preparation of symmetrical disulfides and sulfenamides. Disulfides can be produced in excellent yields (75–95 %) upon treatment of thiols with DIB. The reaction was complete in less than five minutes at room temperature. Aliphatic, aromatic, and heteroaromatic thiols are compatible with this transformation. Moreover, heteroaromatic disulfides
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
application as a volumetric reagent (8). Iodine monochloride (1) has also been used as an iodinating agent without involving a catalyst. It has two crystalline forms α and β that contain non-planar chains of ICl (1) molecules arranged in a zig-zag manner (9). This compound (1) has high vapor pressure and, similar to I2 molecules, evaporates easily. While it has been used frequently, there is some hazard while
Amino acid and water-driven tunable green protocol to access S–S/C–S bonds via aerobic oxidative coupling and hydrothiolation
作者:Amit Shard、Rajesh Kumar、Saima Saima、Nidhi Sharma、Arun K. Sinha
DOI:10.1039/c4ra02909g
日期:——
Arginine in conjunction with water has been employed as an effective and recyclable organocatalyst for oxidative coupling of thiophenols and hydrothiolation of alkynes.