2363-23-7Relevant academic research and scientific papers
Copper-catalyzed decarboxylative methylthiolation of aromatic carboxylate salts with DMSO
Hu, Liang,Wang, Dadian,Chen, Xiang,Yu, Lin,Yu, Yongqi,Tan, Ze,Zhu, Gangguo
supporting information, p. 5674 - 5679 (2017/07/22)
A novel copper-catalyzed decarboxylative methylthiolation of arenecarboxylate salts has been realized using DMSO as the methylthiolation source. Various potassium aryl carboxylates underwent decarboxylative methylthiolation under air to furnish the corresponding aryl methyl thioethers in moderate to excellent yields. The reaction tolerated a wide variety of functional groups. Notably, the synthesis of ethylthioethers was also successfully achieved directly from diethyl sulfoxide under similar reaction conditions.
Palladium-catalyzed decarboxylative methylthiolation of aromatic carboxylic acids by using DMSO as the sulfurizing reagent
Fu, Zhengjiang,Li, Zhaojie,Xiong, Qiheng,Cai, Hu
supporting information, p. 7798 - 7802 (2015/02/19)
By using simple and readily available DMSO as a convenient and environmentally friendly source of sulfur, a practical approach for the Pd-catalyzed decarboxylative methylthiolation of 2-nitrobenzoic acids was developed. A range of substituents on the aryl group of the ortho-nitrobenzoic acid were compatible with this process.
Alkyl- and Arylthiodediazoniations of Dry Arenediazonium o-Benzenedisulfonimides. Efficient and Safe Modifications of the Stadler and Ziegler Reactions to Prepare Alkyl Aryl and Diaryl Sulfides
Barbero, Margherita,Degani, Iacopo,Diulgheroff, Nicola,Dughera, Stefano,Fochi, Rita,Migliaccio, Mara
, p. 5600 - 5608 (2007/10/03)
The reaction between dry arenediazonium o-benzenedisulfonimides 1 and sodium thiolates in anhydrous methanol represents an efficient and safe procedure, of general validity, for the preparation of unfunctionalized or variously functionalized alkyl aryl and diaryl sulfides. As a rule, the reaction temperature was maintained at 0-5°C for the alkylthiodediazoniations and at room temperature (20-25°C) for the arylthiodediazoniations. The sulfide yields are generally high; of the 63 considered examples, 43 gave yields greater than 80% and 13 were between 70% and 80%. Lower yields were obtained only when sterically hindered diazonium salts or thiols were used. A good amount of the o-benzenedisulfonimide (8) was always recovered from the reactions and could be reused to prepare salts 1. The copious experimental data collected in homogeneous conditions have offered several starting points for the study of the mechanism of these reactions.
Co-C bond cleavage in the reactions of alkyl, benzyl and heteroaromaticmethyl cobaloximes with arene sulfenyl chloride: Homolytic and heterolytic pathways
Gupta,Dixit, Vandana,Das, Indira
, p. 49 - 58 (2007/10/03)
The reactions of arene sulfenyl chlorides, ArSCl, (Ar=Ph, C6Cl5, 2,4 (NO2)2C6H3) with organocobaloximes, RCo(dmgH)2Py, (R=alkyl, benzyl and heteroaromaticmethyl) were carried out under thermal and photochemical conditions. A variety of organic and organometallic products are formed depending upon the substrate cobaloxime. For 3-methoxybenzyl and heteroaromaticmethyl cobaloximes the results suggest that they represent a unique class of cobaloximes whereby both the aromatic ring as well as the Co-C bond are highly activated towards attack by the arene sulfenyl chloride. Both homolytic as well as heterolytic pathways are operative.
Eine bequeme Synthese von 2-Aroyl-5-arylpyrrolen
Messinger, Paul,Kunick, Conrad
, p. 213 - 214 (2007/10/02)
2-Aroyl-5-arylpyrroles are prepared in 20-60percent yields by cyclocondensation of 1,5-diaryl-2-methylsulfinyl-1,5-pentanediones with ammonium acetate in acetic acid.
THE THIOLATE ANION AS A NUCLEOPHILE PART X. REACTIONS OF SOME NITROFLUOROAROMATICS
Leblanc, Maurice E.,Peach, Michael E.,Winter, Heather M.
, p. 233 - 248 (2007/10/02)
The reactions of various nitrofluorobenzenes, C6HxFyNO2, with sodium methanethiolate have been studied in ethylene glycol/pyridine mixture as solvent.All the fluorine atoms, but not the nitrogroups, could be substituted by the methylthio group.The reactions have also been studied with the addition of a deactivating group, either methyl or amino, on the aromatic nucleus.Some of the methylthio groups in the products were oxidized to the corresponding sulfones.The new compounds isolated have been characterized and their spectra (IR, NMR and mass) examined.
