124-63-0Relevant articles and documents
Synthesis of methanesulfonyl chloride (MSC) from methane and sulfuryl chloride
Mukhopadhyay, Sudip,Zerella, Mark,Bell, Alexis T.,Srinivas, R. Vijay,Smith, Gary S.
, p. 472 - 473 (2004)
Methane is transformed selectively to methanesulfonyl chloride at low temperature by liquid-phase reaction of methane with SO2Cl 2 in the presence of a free radical initiator and a promoter using 100% H2SO4 as the solvent.
Experimental study on deep desulfurization of MTBE by electrochemical oxidation and distillation
Li, Jing-Jing,Zhou, Fei,Tang, Xiao-Dong,Hu, Tao,Cheng, Jin
, p. 4803 - 4809 (2016)
With the increasing awareness of environmental protection, deep desulfurization of methyl tert-butyl ether (MTBE), which is the most important octane booster in gasoline, is extremely urgent. Herein, a new desulfurization method, involving the combination of electrochemical oxidation and distillation, is proposed to reduce the sulfur content in MTBE. Under optimum operating conditions, the sulfur content of real MTBE decreases from 132.5 μg g-1 to 2.3 μg g-1 and the desulfurization efficiency reaches 98.25%. The oxidation products with high boiling points can be separated by distillation. FTIR analyses prove that electrochemical oxidation has no influence on the main properties of MTBE. Moreover, GC/MS is used to study the conversion of model organic sulfides (dimethyl disulfide, diethyl sulfide and butyl mercaptan) in the electrochemical oxidative desulfurization process. Finally, the possible reaction mechanism of the electrochemical oxidative desulfurization of MTBE is proposed.
Novel One-Step Synthesis of Sulfonyl Chlorides from Sulfides with Iodosobenzene and Hydrogen Chloride-Treated Silica Gel
Sohmiya, Hajime,Kimura, Takahide,Fujita, Mitsue,Ando, Takashi
, p. 891 - 892 (1992)
Alkyl and aryl benzyl sulfides were conveniently converted into the corresponding alkyl and aryl sulfonyl chlorides in high yields with a few minutes' pulverization of solid mixtures with iodosobenzene and hydrogen chloride-treated silica gel.
A practical and efficient method for the preparation of sulfonamides utilizing Cl3CCN/PPh3
Chantarasriwong, Oraphin,Jang, Doo Ok,Chavasiri, Warinthorn
, p. 7489 - 7492 (2006)
Cl3CCN in combination with PPh3 proved to be a highly reactive reagent for the conversion of sulfonic acids to the corresponding sulfonyl chlorides in refluxing CH2Cl2. Upon reaction with amines, the corresponding sulfonamides were obtained in good to excellent yields.
Novel anti-cancer agents based on germacrone: design, synthesis, biological activity, docking studies and MD simulations
Ye, Lianbao,Wu, Jie,Chen, Weiqiang,Feng, Yu,Shen, Zhibing
, p. 3760 - 3767 (2017)
Germacrone is a major activity component found in Curcuma zedoaria oil product, which is extracted from Curcuma zedoaria. In the present study, novel germacrone derivatives were first designed based on the theories of bioalkylating agents, synthesized, and then investigated for their inhibition effects on Bel-7402, HepG2, A549, and HeLa cells. Moreover, the study also evaluated the inhibition of these derivatives on c-Met kinase, which is expressed in a number of cancers. The results indicated that most of the compounds showed a stronger inhibitory effect on cancer cells and c-Met kinase than germacrone. Besides these findings, molecular docking studies were also carried out to analyze the results and explain the molecular mechanism of activities to c-Met kinase. Molecular dynamics simulations have been carried out for the further evaluation of binding stabilities between the compounds and their receptors.
FTIR Kinetic and Mechanistic Study of the Atmospheric Chemistry of Methyl Thiolformate
Patroescu, Iulia V.,Barnes, Ian,Becker, Karl H.
, p. 17207 - 17217 (1996)
Some aspects of the atmospheric chemistry of methyl thiolformate (CH3SCHO), a recently detected intermediate in the oxidation of dimethyl sulfide, have been investigated at 298 K and 1000 mbar total pressure in large reaction chambers using long path in situ FTIR absorption spectroscopy for the analysis.Rate coefficients of (1.11 +/- 0.22)E-11 and (5.80 +/- 0.80)E-11 cm3 molecule-1 s-1 have been determined for its reaction with OH radicals and Cl atoms, respectively.The UV spectrum of CH3SCHO has been measured in the range 220-355 nm and a lower limit of 5.4 days determined for its atmospheric photolytic lifetime.Detailed product analyses have made for the OH and Cl initiated photooxidation of CH3SCHO.Strong SO absorption bands observed in both systems are tentatively assigned to CH3SOCHO in the OH system and to CH3SOCl in the Cl system.The first gas-phase spectra of CH3SCl and CH3SOCl are also presented.The results are discussed with respect to the atmospheric chemistry of CH3SCHO and possible consequences for the photooxidation mechanism of dimethyl sulfide.
METHOD FOR PRODUCING TRIAZOLE COMPOUND
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, (2020/02/05)
A compound represented by formula (5)can be produced by simultaneously and separately adding a compound represented by formula (4)and methanesulfonyl chloride to a compound represented by formula (3)and a compound represented by formula (6)having excellent control efficacies against pests can be produced by subjecting the compound represented by formula (5) to intramolecular condensation in the presence of an acid.
METHOD OF CONVERTING ALKANES TO ALCOHOLS, OLEFINS AND AROMATICS
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Paragraph 0042-0051, (2019/08/08)
A cost-effective and energy-efficient process is disclosed for converting a methane-containing gas to a methane sulfonyl halide comprising reacting the methane-containing gas, under illumination by a light emitting diode (LED) source, with a sulfuryl halide or a halogen in the presence of sulfur dioxide, whereby the methane sulfonyl halide is obtained for isolation or further reactions. The further reactions may sequentially include, in order, contacting the methane sulfonyl halide with a catalyst complex to form a methane monohalide; catalytically converting the methane monohalide to a value-added chemical such as an alcohol, an olefin, an aromatic, derivatives thereof, or mixtures thereof; releasing any hydrogen halide formed in the process; and converting the hydrogen halide to a halogen and recycling it for re-use.
Selective Late-Stage Sulfonyl Chloride Formation from Sulfonamides Enabled by Pyry-BF4
Gómez-Palomino, Alejandro,Cornella, Josep
supporting information, p. 18235 - 18239 (2019/11/13)
Reported here is a simple and practical functionalization of primary sulfonamides, by means of a pyrylium salt (Pyry-BF4), with nucleophiles. This simple reagent activates the poorly nucleophilic NH2 group in a sulfonamide, enabling the formation of one of the best electrophiles in organic synthesis: a sulfonyl chloride. Because of the variety of primary sulfonamides in pharmaceutical contexts, special attention has been focused on the direct conversion of densely functionalized primary sulfonamides by a late-stage formation of the corresponding sulfonyl chloride. A variety of nucleophiles could be engaged in this transformation, thus permitting the synthesis of complex sulfonamides, sulfonates, sulfides, sulfonyl fluorides, and sulfonic acids. The mild reaction conditions and the high selectivity of Pyry-BF4 towards NH2 groups permit the formation of sulfonyl chlorides in a late-stage fashion, tolerating a preponderance of sensitive functionalities.
BIODEGRADABLE POLYETHYLENE GLYCOL DERIVATIVE HAVING CYCLIC BENZYLIDENE ACETAL LINKER
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, (2018/04/14)
A biodegradable polyethylene glycol derivative in which a polyethylene glycol chain is linked by an acetal linker capable of accurately controlling the hydrolysis rate under different pH environments in the living body, and whose division rate into a polyethylene glycol chain of low molecular weight in the living body can be accurately controlled. The biodegradable polyethylene glycol derivative is represented by formula (1) or formula (2) as described.