30246-73-2Relevant academic research and scientific papers
Visible-Light-Induced Three-Component Intermolecular Trifluoromethyl-Alkenylation Reactions of Unactivated Alkenes
Guo, Yuan-Qiang,Wang, Kaihua,Wang, Ruiguo,Song, Hongjian,Liu, Yuxiu,Wang, Qingmin
supporting information, p. 1651 - 1655 (2021/02/12)
Herein, we describe a practical protocol for efficient, mild, visible-light-induced three-component intermolecular trifluoromethyl-alkenylation reactions of unactivated alkenes. The protocol has good functional group tolerance and a broad substrate scope. Using this protocol, we not only introduced a trifluoromethyl group into alkenes but also converted unactivated alkenes to styrene-based activated alkenes, in addition to accomplishing late-stage functionalization of pharmaceutical intermediates. (Figure presented.).
Base-controlled divergent synthesis of vinyl sulfones from (benzylsulfonyl)benzenes and paraformaldehyde
Xiao, Fuhong,Hu, Yangling,Huang, Huawen,Xu, Fen,Deng, Guo-Jun
, p. 3527 - 3535 (2020/05/25)
A tuneable metal-free protocol for the selective preparation of a-substituted vinyl sulfone and (E)-vinyl sulfone derivatives has been described. In this process, stable paraformaldehyde was used as the carbon source. The base played an important role in the selectivity control of transformations. More than 50 products were synthesized with excellent chemoselectivity and broad functional group tolerance.
(E)-(2-(phenylsulfonyl)vinyl)benzene and derivative thereof, and synthesis method of (E)-(2-(phenylsulfonyl)vinyl)benzene and derivative thereof
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Paragraph 0054; 0057; 0058; 0059-0065; 0068; 0072, (2019/06/13)
The invention relates to a technical scheme that under the joint action of alkaline and N,N-dimethyl formamide, (E)-(2-(phenylsulfonyl)vinyl)benzene and a derivative thereof are efficiently synthesized from multiple components of benzyl compounds and para
Nondirected C-H alkenylation of arenes with alkenes under rhodium catalysis
Ghosh, Koushik,Mihara, Gen,Nishii, Yuji,Miura, Masahiro
supporting information, p. 148 - 151 (2019/02/01)
A nondirected dehydrogenative direct alkenylation of simple aromatic compounds with alkenes under rhodium catalysis is described. The site-selectivity is dominantly dictated by the steric bulkiness around the targeted CH bond. The reaction efficiency was
A synthetic E - alkene base sulphone compounds
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Paragraph 0033; 0034, (2017/08/14)
The invention discloses a method for synthesizing an E-alkenyl sulfone compound, which comprises the following steps: dissolving phenylsulfonyl hydrazone in a DMF (N,N-dimethylformamide) solvent, adding iodobenzene diacetate and potassium carbonate, and r
Decarboxylative sulfonylation of arylpropiolic acids with sulfinic acids: synthesis of (E)-vinyl sulfones
Meesin, Jatuporn,Katrun, Praewpan,Reutrakul, Vichai,Pohmakotr, Manat,Soorukram, Darunee,Kuhakarn, Chutima
supporting information, p. 1440 - 1446 (2017/02/15)
Decarboxylative sulfonylation of arylpropiolic acids has been achieved by simply employing Na2CO3as a promoter and arenesulfinic acids as sulfonylating reagents. This simple and environmentally benign transformation offers an alternative approach and allows for easy and rapid synthesis of E-Vinyl sulfones from arylpropiolic acids and arenesufinic acids.
PhI(OAc)2-mediated decomposition of N-arylsulfonyl hydrazones: metal-free synthesis of (E)-vinyl sulfones
Luo, Zaigang,Fang, Yuyu,Zhao, Yu,Xu, Xuemei,Feng, Chengtao,Li, Zhong,Zhang, Xiaomei,He, Jie
supporting information, p. 4105 - 4108 (2016/08/18)
A novel and efficient approach for the preparing of (E)-vinyl sulfones via PhI(OAc)2-mediated decomposition of ketone-derived N-arylsulfonyl hydrazones has been developed. The generation of α- or β-substituted vinyl sulfones was affected by the
Visible Light-Mediated Metal-Free Synthesis of Vinyl Sulfones from Aryl Sulfinates
Meyer, Andreas Uwe,J?ger, Stefanie,Prasad Hari, Durga,K?nig, Burkhard
supporting information, p. 2050 - 2054 (2015/06/23)
Visible light and eosin Y catalyze the synthesis of vinyl sulfones from aryl sulfinates and alkenes by a photoredox process. The reaction scope is broad in aryl sulfinates and alkenes and the general and simple procedure provides a metal-free alternative for the synthesis of synthetically valuable vinyl sulfones.
Phosphoric Acid-Mediated Synthesis of Vinyl Sulfones through Decarboxylative Coupling Reactions of Sodium Sulfinates with Phenylpropiolic Acids
Rong, Guangwei,Mao, Jincheng,Yan, Hong,Zheng, Yang,Zhang, Guoqi
, p. 7652 - 7657 (2015/08/18)
A novel phosphoric acid -mediated synthesis of vinyl sulfones through decarboxylative coupling reactions of sodium sulfinates with phenylpropiolic acids is described. This transformation is efficient and environmentally friendly.
PhI(OAc)2 mediated decarboxylative sulfonylation of β-aryl-α,β-unsaturated carboxylic acids: A synthesis of (E)-vinyl sulfones
Katrun, Praewpan,Hlekhlai, Sornsiri,Meesin, Jatuporn,Pohmakotr, Manat,Reutrakul, Vichai,Jaipetch, Thaworn,Soorukram, Darunee,Kuhakarn, Chutima
supporting information, p. 4785 - 4794 (2015/04/27)
A highly efficient metal-free decarboxylative sulfonylation protocol for the preparation of (E)-vinyl sulfones from of β-aryl-α,β-unsaturated carboxylic acids using sodium sulfinates and (diacetoxyiodo)benzene (PhI(OAc)2) was developed. This strategy offers a simple and expedient synthesis of (E)-vinyl sulfones bearing a wide variety of functional groups. A radical-based pathway has been proposed for this decarboxylative sulfonylation reaction.
