6339-51-1Relevant academic research and scientific papers
Utilizing 2-phenylpropanal as coupling partner for C-S bond formation via sequential thioarylation and decarbonylation process: A novel strategy for the synthesis of aryl alkyl sulfides
Shaikhi Shahidzadeh, Elham,Nowrouzi, Najmeh,Abbasi, Mohammad
, (2019/09/12)
In this study, first direct access to aryl alkyl sulfides employing 2-phenylpropanal as coupling partner is reported. Diaryl disulfides react with this aldehyde in the presence of morpholine and produce the corresponding sulfide products in high yields. In another part, disulfides are in situ generated in the reaction mixture from aryl halides/CuI/Cyanodithioformate and coupled with 2-phenylpropanal to access aryl alkyl sulfides.
Ligand-free copper-catalysed direct synthesis of diaryl sulfides and diaryl disulfides in wet poly(ethylene glycol)
Nowrouzi, Najmeh,Abbasi, Mohammad,Latifi, Hadis
, (2017/03/01)
An improved protocol has been developed for the one-pot CuI-catalysed preparation of symmetric diaryl sulfides from their available aryl halides in the presence of thiourea as sulfur transfer agent and in the absence of both ligand and organic solvent. This catalytic system was also used for the high-yielding preparation of diaryl disulfides in the presence of C2Cl6 as oxidant.
Europhtal (8020) efficiently catalyzes the aerobic oxidation of in situ generated thiols to symmetric disulfides (disulfanes)
Abbasi, Mohammad,Sabet, Askar,Sabet, Askar
, p. 10 - 17 (2017/02/10)
Efficient, odorless and scalable synthetic protocols have been introduced for the preparation of symmetric alkyl disulfides by treatment of the corresponding organic halides with thiourea and NaHCO3in the presence of commercially available Europhtal catalyst (8020) in both H2O and poly ethylene glycol (PEG-200) media at 80–90 °C. Structurally diverse primary, secondary, allylic and benzylic halides were examined successfully whereas, the result with tert-butyl bromide was not satisfactory. Also, another procedure has been introduced for achieving symmetric aryl disulfides in high yields by reacting aryl halides, thiourea and NaHCO3in PEG-200 at 115–120 °C using CuI along with Europhtal catalysts. The results showed that the aerobic oxidation of in situ generated thiols proceeded efficiently in the presence of Europhtal catalyst giving the symmetric disulfide without contamination by symmetric sulfide side-product.
18F-Fluoroform: A 18F-trifluoromethylating agent for the synthesis of SCF218F-aromatic derivatives
Carbonnel, Elodie,Besset, Tatiana,Poisson, Thomas,Labar, Daniel,Pannecoucke, Xavier,Jubault, Philippe
supporting information, p. 5706 - 5709 (2017/07/10)
Herein the synthesis of various SCF218F-containing derivatives is reported by a transition metal-free process. By using HCF218F, readily generated from a bench-stable difluoromethyl sulfonium salt, various aromatic disulfides were easily converted into the desired radiolabelled trifluoromethylthiolated compounds in the presence of a base. This protocol allowed the formation of the SCF218F-containing aromatic derivatives in good to excellent radiochemical yields. This process was also extended to the corresponding selenium derivative.
Visible-light-mediated facile synthesis of disulfides using reusable TiO2/MoS2nanocomposite photocatalyst
Liu, Wenjie,Wang, Cancan,Huang, Yibo,Chen, Qun,Wang, Liang,He, Mingyang
supporting information, p. 1268 - 1274 (2016/08/16)
A nontoxic and inexpensive TiO2/MoS2nanocomposite was prepared and employed as an efficient photocatalyst for the synthesis of symmetrical disulfides under visible light irradiation at room temperature. Both aryl and alkyl thiols survived the reaction conditions, affording the corresponding disulfides in good to excellent yields. The photocatalyst could be easily recovered by simple centrifugation and filtration and reused several times without significant loss in its activity.
Catalyst-Free, Regioselective Ring Opening of Donor-Acceptor Cyclopropanes: Synthesis of Functionalized Mono- and Disulfides
Gopinath, Purushothaman,Chandrasekaran, Srinivasan
, p. 3087 - 3096 (2016/09/09)
Interesting sulfur compounds such as monosulfides, symmetrical disulfides, unsymmetrical disulfides, and other 1,3-bifunctionalized compounds were synthesized using benzyltriethylammonium tetrathiomolybdate, [BnNEt3]2MoS4, as the sulfur transfer reagent via regioselective ring opening of donor-acceptor cyclopropanes without the addition of any catalyst.
Selective synthesis of organic sulfides or disulfides by solvent exchange from aryl halides and KSCN catalyzed by NiCl2·6H2O
Abbasi, Mohammad,Nowrouzi, Najmeh,Latifi, Hadis
, p. 112 - 117 (2016/09/07)
A method for selective synthesis of symmetric sulfides or disulfides from the reaction of aryl halides with KSCN by solvent exchange is introduced. Aryl halides were selectively converted to the symmetric disulfides or sulfides in high yields when they are treated with KSCN in the presence of NiCl2·6H2O and DMAP at 140?°C in DMF or poly ethylene glycol (PEG-200) respectively.
Tunable and Practical Synthesis of Thiosulfonates and Disulfides from Sulfonyl Chlorides in the Presence of Tetrabutylammonium Iodide
Zheng, Yong,Qing, Feng-Ling,Huang, Yangen,Xu, Xiu-Hua
supporting information, p. 3477 - 3481 (2016/11/13)
A tunable and practical synthesis of electrophilic sulfenylating reagents, thiosulfonates and disulfides, from inexpensive and easily available sulfonyl chlorides, has been developed. By appropriate choice of solvents, the reaction of sulfonyl chlorides and tetrabutylammonium iodide gave the target products in good to excellent yields, respectively. These transformations probably proceed through a reducing–coupling pathway. (Figure presented.).
Haloacid/dimethyl sulfoxide-catalyzed synthesis of symmetrical disulfides by oxidation of thiols
Natarajan, Palani,Sharma, Himani,Kaur, Mandeep,Sharma, Pooja
supporting information, p. 5578 - 5582 (2015/09/21)
A novel method is developed for the oxidation of thiols to the corresponding disulfides using 20 mol % haloacid (HBr or HI) in combination with dimethyl sulfoxide. A tentative mechanism is proposed for the oxidation. In addition to the advantages of cost-effectiveness, simple processes, and broad functional group tolerance, the exclusive formation of disulfides is the principle reward of this methodology while compared to known methods that further oxidize disulfides to S-oxides and other byproducts.
Deep eutectic mixture catalysed the synthesis of disulfides using Bunte salts as thiol surrogates
Zhou, Yongsheng
, p. 332 - 335 (2015/08/18)
Bunte salts, easily prepared from odourless sodium thiosulfates and various alkyl and aryl halides, acted as thiol surrogates for preparation of disulfides in the presence of hydrogen peroxide and a Bronsted-acidic deep eutectic mixture. The reaction proceeded smoothly to give the corresponding disulfide products in moderate to good yields, leaving odourless sodium bisulfite and water as the by-products. Moreover, this catalytic system could be readily recovered and reused several times without significant loss in activity.
