69719-58-0Relevant academic research and scientific papers
Nickel-Catalyzed Defluorinative Reductive Cross-Coupling Reaction of gem-Difluoroalkenes with Thiosulfonate or Selenium Sulfonate
Li, Jian,Rao, Weidong,Wang, Shun-Yi,Ji, Shun-Jun
, p. 11542 - 11552 (2019/09/30)
A nickel-catalyzed defluorinative reductive cross-coupling of gem-difluoroalkenes with thiosulfonate or selenosulfonates is described. The reaction involves the formation of thiolated or selenylated monofluoroolefins via regioselective C-F bond cleavage and C-S or C-Se bond formation and features easily available substrates, mild reaction conditions, and high E-selectivity. One of the derivatives by further cross coupling with PhMgBr exhibited an aggregation-induced emission enhancement effect.
Triaryl substituted alkenyl thioether compound synthesis method
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Paragraph 0076; 0077, (2019/04/17)
The invention mainly relates to a triaryl substituted alkenyl thioether compound synthesis method. Diaryl alkyne and thio-sulphonate serve as raw materials, difunctional reaction research on the alkyne is performed under the action of oxidizing agents, and a triaryl substituted alkenyl thioether compound is synthesized without metal. The synthesis method has the advantages that traditional metal for catalysis is omitted, a new path is provided for synthesis of the polysubstituted alkenyl thioether compound, a reaction system is simple, reaction equipment is less, experimental operation is simple and convenient, yield is above-average and the like.
Iron-catalyzed tetrasubstituted alkene formation from alkynes and sodium sulfinates
Liu, Saiwen,Tang, Lichang,Chen, Hui,Zhao, Feng,Deng, Guo-Jun
supporting information, p. 6076 - 6079 (2014/08/05)
An iron-catalyzed sulfenylation and arylation of alkynes with aryl sulfinic acid sodium salts is described. Various aromatic sodium sulfinates acted both as aryl and sulfenylation reagents, affording tetrasubstituted alkenes in one pot with good yields. T
A search for unambiguous vinylic SRN1 reactions
Annunziata, Alfonso,Galli, Carlo,Gentili, Patrizia,Guarnieri, Alessandra,Beit-Yannai, Michal,Rappoport, Zvi
, p. 2136 - 2143 (2007/10/03)
In a search for unambiguous examples of the vinylic SRN1 route, vinyl bromides Ph(CH3)C=CHBr (10), Ph2C=CHBr (15), An2C=C(Br)An (18) and An2C=CBr2 (20) were treated with Me3CCOCH2- under photostimulation conditions in Me2SO, whereas substrates PhCH=CHBr (2), Ph2C=C(Br)Ph (3), 10 and 15 were similarly allowed to react with PhS- and PhCH2S-. With the strongly basic enolate ion, the prevailing reactions were elimination/addition routes, α-deprotonation followed by 1,2-Ph shift and bromide ion elimination, or halophilic steps. With 18, however, an SRN1 route was obtained. The weakly basic but reducing anion PhS- gave the SRN1 route with 2, 3 and 15. The nucleophilic character of the PhCH2S- anion instead prevailed with 15, whereas with 3 a variety of behaviours was obtained. The mechanistic interpretations were supported by the electrochemically determined redox potentials of the substrates. Wiley-VCH Verlag GmbH, 69451 Weinheim, Germany, 2002.
A novel diarylation reaction of alkynes by using aryltributylstannane in the presence of palladium catalyst
Oda, Hiroshi,Morishita, Michiko,Fugami, Keigo,Sano, Hiroshi,Kosugi, Masanori
, p. 811 - 812 (2007/10/03)
Some alkynes were diarylated by aryltributylstannane 2 in the presence of palladium salt in moderate to good yield with high stereoselectivity. The reaction was catalytic in palladium using copper(II) chloride dihydrate as a reoxidant.
