79424-71-8Relevant academic research and scientific papers
Iron(0) nanoparticles mediated direct conversion of aryl/heteroaryl amines to chalcogenides via in situ diazotization
Panja, Subir,Maity, Pintu,Kundu, Debasish,Ranu, Brindaban C.
supporting information, p. 3441 - 3445 (2017/08/10)
A simple procedure for the synthesis of organo-chalcogenides has been developed by the reaction of aryl/heteroaryl amines with di-aryl/heteroaryl dichalcogenides in the presence of tBuONO and Fe(0) nanoparticles. The reaction proceeds via in situ diazotization followed by chalcogenation. A series of functionalized diaryl/aryl heteroaryl/diheteroaryl/aryl-alkyl selenides, sulfides and tellurides have been obtained by this procedure. Significantly, using this procedure 2,4-dinitroaniline is converted to (2,4-dinitrophenyl)(phenyl)selane which is known as thioredoxin reductase (TR) and glutathione reductase (GR) inhibitor. The reaction goes by a radical pathway and a plausible mechanism has been suggested.
Metal-free radical thiolations mediated by very weak bases
Koziakov, Denis,Majek, Michal,Jacobi Von Wangelin, Axel
supporting information, p. 11347 - 11352 (2016/12/16)
Aromatic thioethers and analogous heavier chalcogenides were prepared by reaction of arene-diazonium salts with disulfides in the presence of the cheap and weak base NaOAc. The mild and practical reaction conditions (equimolar reagents, DMSO, r.t., 8 h) tolerate various functional groups (e.g. Br, Cl, NO2, CO2R, OH, SCF3, furans). Mechanistic studies indicate the operation of a radical aromatic substitution mechanism via aryl, acetyloxyl, thiyl, and dimsyl radicals.
Microwave-assisted reaction of aryl diazonium fluoroborate and diaryl dichalcogenides in dimethyl carbonate: A general procedure for the synthesis of unsymmetrical diaryl chalcogenides
Kundu, Debasish,Ahammed, Sabir,Ranu, Brindaban C.
experimental part, p. 2024 - 2030 (2012/07/17)
A convenient, general and efficient procedure for the synthesis of unsymmetrical diaryl chalcogenides has been developed by the reaction of aryl diazonium fluoroborates and diaryl dichalcogenides in the presence of zinc dust in dimethyl carbonate under microwave irradiation. The reactions of a wide range of substituted aryl diazonium fluoroborates and diaryl dichalcogenides have been addressed. The zinc dust is required for the cleavage of diaryl dichalcogenides. The products are obtained in high purity after fast column chromatography of the crude residue after evaporation of dimethyl carbonate. The Royal Society of Chemistry 2012.
Novel Aromatic Azopolymers with Regularly Interposed Tellurium Atoms in the Backbone
Suzuki, Hitomi,Nakamura, Tohru,Seki, Kenji
, p. 703 - 710 (2007/10/03)
Previously unknown alt-copoly(telluro-1,4-phenylene/azo-1,4-phenylene) and related polymers were synthesized by several different approaches, which include a) reductive polymerization of bis(4-nitrophenyl) tellurides with zinc; b) oxidative polymerization
Aryl Arylazo Sulfones Chemistry. 2. Reactivity toward Alkaline Alkane- and Areneselenolate and Alkane- and Arenetellurolate Anions
Evers, Michel J.,Christiaens, Leon E.,Renson, Marcel J.
, p. 5196 - 5198 (2007/10/02)
Tolyl arylazo sulfones react with various alkyl- and arylseleno reagents to produce substituted alkyl aryl and unsymmetrical diaryl selenides.The corresponding tellurides can also be obtained.Isolated yields in both cases are good.This procedure is an interesting alternative to the classical Sandmeyer reaction.
DIARYL TELLURIDES FROM THE REACTION OF MODERATELY ACTIVATED IODOARENES WITH BENZENETELLUROLATE ION IN HEXAMETHYLPHOSPHORIC TRIAMIDE
Suzuki, Hitomi,Abe, Hisako,Ohmasa, Nobuko,Osuka, Atsuhiro
, p. 1115 - 1116 (2007/10/02)
When heated in hexamethylphosphoric triamide at 80-90 deg C, preferably in the presence of copper(II) iodide, moderately activated iodoarenes undergo nucleophilic attack by benzenetellurolate ion , giving the corresponding unsymmetrical diaryl tellurides
