110-01-0Relevant articles and documents
Visible-Light-Promoted Oxo-difluoroalkylation of Alkenes with DMSO as the Oxidant
Xia, Zi-Hao,Gao, Zhong-Hua,Dai, Lei,Ye, Song
, p. 7388 - 7394 (2019)
Visible-light-promoted oxo-difluoroalkylation (acetylation and acetamidation) of alkenes with dimethyl sulfoxide as both the solvent and the oxidant was developed, affording the corresponding α,α-difluoro-?-ketoacetates and acetamides in modest yields. Both terminal and internal alkenes worked well for the reaction. This reaction features simple starting materials, a green oxidant, mild reaction conditions, and highly functional products.
Six-coordinate nitrosyl and nitro complexes of meso - Tetratolylporphyrinatocobalt with trans sulfur-donor ligands
Kurtikyan, Tigran S.,Gulyan, Gurgen M.,Dalaloyan, Arina M.,Kidd, Bryce E.,Goodwin, John A.
, p. 7793 - 7798 (2010)
By Fourier transform infrared and optical spectroscopy, it has been observed that interactions of dimethyl sulfide and tetrahydrothiophene with nitrosyl and nitro complexes of meso-tetra-p-tolylporphyrinatocobalt [Co(TTP)] lead to the formation of previou
The reactivity of (Me3Si)3SiH with sulfoxides under free radical conditions
Chatgilialoglu, Chryssostomos,Ferreri, Carla
, p. 7764 - 7769 (2016)
The radical-initiated reaction of (Me3Si)3SiH with a variety of sulfoxides has been investigated. The reactivity varies significantly with the nature of the starting materials. The reactions of diaryl sulfoxides provide the corresponding sulfides in high yields while the related reactions with dialkyl sulfoxides occur more slowly and in moderate yields. The rate constant for the addition of (Me3Si)3Si[rad] radical with dibutyl sulfoxide is in the range 103–104M?1s?1at 80 °C. The reactivity of (Me3Si)3SiH with 1,3-dithiolane derivatives has also been investigated in a comparative study. The 2,2-dimethyl-1,3-dithiolane and the corresponding 1,1-dioxide give very smooth reaction with (Me3Si)3Si[rad] radical attack at sulfur followed by the ring opening at S–CMe2bond and subsequent H-abstraction from the silane in very high yield, whereas the 2,2-dimethyl-1,3-dithiolane-1-oxide behaves quite differently and unexpectedly.
Characterization and catalytic performance of {Mo2O2S2}-based oxothiomolybdenum cyclic clusters supported on mesoporous SBA-15
Xin, Zhifeng,Wei, Wei,Chen, Min,Jia, Ai-Quan,Zhang, Qian-Feng
, p. 86 - 90 (2015)
Cyclic polyoxothiomolybdate clusters containing {Mo2O2S2} building unit supported on SBA-15 have been prepared by immersion SBA-15 in the corresponding cluster's solution. The measurements of low angle X-ray diffraction (L
Synthesis, structure, and reactions of a copper-sulfido cluster comprised of the parent Cu2S unit: {(NHC)Cu}2(μ-S)
Zhai, Junjie,Filatov, Alexander S.,Hillhouse, Gregory L.,Hopkins, Michael D.
, p. 589 - 595 (2016)
The synthesis of the first CuI2(μ-S) complex, {(IPr?)Cu}2(μ-S) (IPr? = 1,3-bis(2,6-(diphenylmethyl)-4-methylphenyl)imidazol-2-ylidene; 1), has been accomplished via three synthetic routes: (1) salt metathesis between (IPr?)CuCl and Na2S; (2) silyl-deprotection reaction between (IPr?)Cu(SSiMe3) and (IPr?)CuF; and (3) acid-base reaction between (IPr?)Cu(SH) and (IPr?)Cu(OtBu). The X-ray crystal structure of 1 exhibits two two-coordinate copper centers connected by a bent Cu-S-Cu linkage. Application of these synthetic routes to analogous precursors containing the sterically smaller ligand IPr (1,3-bis(2,6-di-isopropylphenyl)imidazol-2-ylidene), in place of IPr?, resulted in the formation of a transient product proposed as {(IPr)Cu}2(μ-S) (2), which decomposes quickly in solution. The instability of 2 probably results from the insufficient steric protection provided by IPr ligands to the unsaturated Cu2(μ-S) core; in contrast, 1 is stable both in solution and solid state for weeks. The nucleophilic sulfido ligand in 1 reacts with haloalkyl electrophiles (benzyl halides and dibromoalkanes) with formation of C-S bonds, affording (IPr?)Cu(SCH2Ph) and cyclic thioethers, respectively.
The synthesis of polymeric sulfides by reaction of dihaloalkanes with sodium sulfide
Smith, Keith,El-Hiti, Gamal A.,Al-Zuhairi, Ali J.
, p. 521 - 531 (2011)
Several poly(alkylene sulfide)s have been synthesized in excellent yields from reactions of α,ω-dibromo- and/or α,ω- dichloroalkanes with sodium sulfide nonahydrate under reflux conditions. The procedure is general, simple and convenient for the production of various poly(alkylene sulfide)s and the way reaction parameters influence the properties of the polymers formed has been examined.
Coenzyme F430 from Methanogenic Bacteria: Methane Formation by Reductive Carbon-Sulphur Bond Cleavage of Methyl Sulphonium Ions Catalysed by F430 Pentamethyl Ester
Jaun, Bernhard,Pfaltz, Andreas
, p. 293 - 294 (1988)
The nickel(I)-form of coenzyme F430 pentamethyl ester is an efficient catalyst for the reductive cleavage of methyl sulphonium salts to methane and thioesters.
Neutral and Anionic Binuclear Perhalogenophenyl Platinum-Silver Complexes with Pt->Ag Bonds Unsupported by Covalent Bridges. Molecular Structures of , and (tht = tetrahydrothiophene)
Uson, Rafael,Fornies, Juan,Tomas, Milagros,Ara, Irene,Casas, Jose M.,Martin, Antonio
, p. 2253 - 2264 (1991)
Heterobinulear complexes of general formula 14-21 have been prepared by treating the anionic platinum derivatives with (molar ratio 1:1) in dichloromethane.The anionic (L = OEt2, PPh3 or tht) 22-24 and 25 have been obtained from the corresponding 2 and (molar ratio 1:1) in CH2Cl2-diethyl ether.The reaction between and renders Ag(C6F5) and cis-.The salts 2 and 24> react with yielding and , respectively.The reactions between 2 and or (molar ratio 1:2) render in the first case complex 24 while in the second an unstable material which evolves to 27 is obtained. The reaction between 2 (X = F or Cl) and or ClO4 have also been studied.The structures of 14, 24 and 25 have been established by single-crystal X-ray diffraction studies.The complexes contain a strong Pt->Ag bond unsupported by covalent bridges, and short contacts between the o-F or o-Cl atoms of the C6X5 (X = F or Cl) groups and the Ag atom are present.The relative strength of such contacts is discussed.Methods for the synthesis of mixed pentachloro-pentafluorophenyl starting complexes 1-13 have been investigated.
Efficient reduction of sulfoxides with 2,6-dihydroxypyridine
Miller, Samantha J.,Collier, Talia R.,Wu, Weiming
, p. 3781 - 3783 (2000)
2,6-Dihydroxypyridine was found to be an efficient reagent in the deoxygenation of sulfoxides. The mild reaction conditions were compatible with functional groups such as ester and carbamate. It was also found that approximately 0.25 equivalents of 2,6-dihydroxypyridine was required for effective reduction. (C) 2000 Elsevier Science Ltd.
Formation of active sites and hydrodesulfurization activity of rhodium phosphide catalyst: Effect of reduction temperature and phosphorus loading
Kanda, Yasuharu,Temma, Chisato,Sawada, Ayaka,Sugioka, Masatoshi,Uemichi, Yoshio
, p. 410 - 419 (2014)
Effects of reduction temperature and phosphorus loading on rhodium phosphide (Rh2P) formation and on the catalytic activity of Rh-xP catalysts for hydrodesulfurization (HDS) were investigated to prepare highly active HDS catalysts. Analysis of the Rh-xP catalysts showed that a suitable P loading for HDS activity is 1.5 wt% - four times greater than that of an Rh catalyst. Temperature-programmed reduction and X-ray diffraction analyses of the Rh-xP catalysts showed that Rh2P is readily formed in catalysts with higher P loading. In contrast, the results of transmission electron microscopy observation and CO adsorption experiments indicated that the Rh2P particle size increased with increasing P content. Thus, the high HDS activity of the Rh-1.5P catalyst was explained by the formation of small Rh2P at a relatively low reduction temperature (550°C).
