20608-64-4Relevant academic research and scientific papers
Palladium-Catalyzed Sulfinylation of Aryl- And Alkenylborons with Sulfinate Esters
Hosoya, Takamitsu,Kanemoto, Kazuya,Nakamura, Yu,Suzuki, Minori,Yoshida, Suguru
supporting information, p. 3793 - 3797 (2021/05/29)
An efficient, direct sulfinylation of organoborons catalyzed by palladium is disclosed. Treatment of organoborons and sulfinate esters in the presence of a palladium precatalyst provided a broad range of sulfoxides. Various organosulfur compounds having oxidizable functional groups were successfully prepared through the sulfoxide synthesis.
Emodinas a novel organic photocatalyst for selective oxidation of sulfides under mild conditions
Li, Min,Lou, Jiangli,Rao, Yijian,Yuan, Zhenbo,Zhang, Yan
, p. 19747 - 19750 (2020/06/04)
Herein, we have developed naturally-occurringEmodin, which is commercially available at low-cost, as a novel organic photocatalyst for the first time.Emodinwas successfully employed in the selective oxidation of sulfides promoted by visible-light, deliver
Preparation method for sulfoxide compound
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Paragraph 0004; 0034; 0035, (2019/04/10)
The invention discloses a preparation method for a sulfoxide compound and belongs to the technical field of catalysis. The invention provides a new green and environment-friendly method for efficiently synthesizing the sulfoxide compound. Under the action of catalyst, thiophenol, aryl diazonium compound and oxidizing agent are directly oxidized into the sulfoxide compound under the condition of light radiation, wherein cercosporin is served as the catalyst. According to the method disclosed by the invention, cercosporin is served as the catalyst; catalyzing condition is mild; catalysis can beperformed under room temperature and radiation of visible light; catalytic activity of catalyst is high; the catalyst can high-selectively catalyze synthesis of sulfoxide compound; with a trace amountof catalyst, yield can reach up to above 70%. The preparation method disclosed by the invention has the advantages of simple and easily acquired photocatalyst and substrate raw materials, environmental protection, low cost, large batch production and bright application prospect.
Catalyst-free visible-light-initiated oxidative coupling of aryldiazo sulfones with thiols leading to unsymmetrical sulfoxides in air
Liu, Qishun,Wang, Leilei,Yue, Huilan,Li, Jiang-Sheng,Luo, Zidan,Wei, Wei
supporting information, p. 1609 - 1613 (2019/04/08)
A facile and efficient visible-light-driven method has been developed to construct sulfoxides via oxidative coupling of aryldiazo sulfones with thiols using the O2 in air as the oxidant. This reaction could be performed at room temperature under catalyst- and additive-free conditions. The present methodology offers a mild and environmentally benign approach to obtain a library of sulfoxides in good yields with favorable functional group tolerance.
Method for preparing visible light promoted asymmetric sulfoxide compound
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Paragraph 0051; 0052, (2019/06/11)
The invention belongs to the field of organic synthetic chemistry, particularly relates to a preparation method of an asymmetric sulfoxide compound, and particularly discloses a method for synthesizing the asymmetric sulfoxide compound based on visible light catalysis. A compound shown in the formula I and a compound shown in the formula II are added to a reactor, a mixture of an organic solvent and water is added as a reaction solvent, the reactor is connected to air, under the irradiation of visible light, a reaction at a room temperature is performed for 16-40 hours; and after a detection reaction of a TLC thin layer chromatography plate is completed, pure water is added, then the extraction is performed, extract liquid is combined and dried, the extract liquid is concentrated and purified to obtain a compound shown in the formula III, and the compound is the asymmetric sulfoxide compound. The reaction conditions are mild, energy is clean, a strong oxidant is not needed, the safetyof the reaction is improved, the pollution caused by using a metal reagent is avoided, and the reaction cost is saved.
Method for synthesizing sulfoxide compound
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Paragraph 0067-0069, (2019/10/04)
The invention discloses a method for synthesizing a sulfoxide compound and belongs to the technical field of synthesis of organic compounds. The method disclosed by the invention comprises the step of catalyzing a reaction between a thioether compound and an oxygen gas agent under the condition of illumination by taking perylene bisimide as a catalyst, thereby obtaining the sulfoxide compound. According to the method, selective oxidation of thioether catalyzed by perylene bisimide under visible light is achieved for the first time, and sulfoxide derivatives are successfully constructed in high yield; and according to the method, the reaction conditions are mild, the reaction efficiency is high, the substrate applicable range is wide, the atom utilization ratio is high, the regioselectivity and chemical selectivity of reaction are high, and thus, the method has a potential application value.
Cercosporin-bioinspired selective photooxidation reactions under mild conditions
Li, Jia,Bao, Wenhao,Tang, Zhaocheng,Guo, Baodang,Zhang, Shiwei,Liu, Haili,Huang, Shuping,Zhang, Yan,Rao, Yijian
supporting information, p. 6073 - 6081 (2019/11/20)
The development of an efficient system for selective oxidation of organic compounds to generate more valuable compounds with molecular oxygen is a significant challenge in industrial chemistry. Bioinspired by the ability of naturally occurring perylenequinonoid pigments (PQPs) to generate reactive oxygen species (ROS) upon photoirradiation, here we report that cercosporin, one of the perylenequinonoid pigments, can function as a cost-effective and environmentally friendly photocatalyst for a wide range of selective oxidations, including benzylic C-H bonds to carbonyls, amines to aldehydes, and sulfides to sulfoxides. All of the representative reactions proceeded smoothly with high efficiency under mild conditions. Owing to the use of inexpensive metal-free visible light-driven photocatalyst produced from microbial fermentation with cheap glucose as the starting material and the ease of handling, we expect that this developed method will be particularly attractive for many more applications in synthetic transformation.
Visible-light photocatalytic aerobic oxidation of sulfides to sulfoxides with a perylene diimide photocatalyst
Gao, Yueying,Xu, Huan,Zhang, Shiwei,Zhang, Yan,Tang, Chunlei,Fan, Weizheng
supporting information, p. 7144 - 7149 (2019/08/07)
Photosensitized oxygenation has been recognised as a modern method of incorporating oxygen into a substrate, as it offers environmentally benign alternatives to several conventional synthetic procedures. A metal-free aerobic selective sulfoxidation photos
Transition-Metal-Free Arylations of In-Situ Generated Sulfenates with Diaryliodonium Salts
Yu, Hao,Li, Zhen,Bolm, Carsten
supporting information, p. 7104 - 7106 (2018/11/23)
A transition-metal-free arylation of sulfenate anions generated from β-sulfinyl esters with diaryliodonium salts was developed. In this process, a new C-S bond is formed under mild reaction conditions providing a wide range of S,S-diaryl and S-alkyl S-aryl sulfoxides.
Synthesis of o-Aryloxy Triarylsulfonium Salts via Aryne Insertion into Diaryl Sulfoxides
Li, Xiaojin,Sun, Yan,Huang, Xin,Zhang, Lei,Kong, Lichun,Peng, Bo
, p. 838 - 841 (2017/02/26)
The aryne insertion into "S-O" bond has been validated recently. This technology is elusively applied to the synthesis of thioethers. In contrast to the reported cases, the reaction described furnished o-aryloxy triarylsulfonium salts, in lieu of thioethe
