Copper-Catalyzed Intermolecular Reductive Radical Difluoroalkylation–Thiolation of Aryl Alkenes
作者:Weiguang Kong、Changjiang Yu、Hejun An、Qiuling Song
DOI:10.1021/acs.orglett.8b02091
日期:2018.8.17
A novel radical-involved alkene difunctionalization catalyzed by the copper/B2pin2 system has been developed, leading to the difluoroalkylation–thiolation of aryl alkenes. The use of B2pin2 as an organic reductant enables the simultaneous installation of a C(sp3)–C(F2R) bond and a C(sp3)–S(R) bond across the C═C bond of aryl alkenes by utilizing two electrophilic reactants. The reaction exhibits broad
Gold(I) Catalysis Applied to the Stereoselective Synthesis of Indeno[2,1-<i>b</i>]thiochromene Derivatives and Seleno Analogues
作者:Cintia Virumbrales、Mahmoud A. E. A. A. A. El-Remaily、Samuel Suárez-Pantiga、Manuel A. Fernández-Rodríguez、Félix Rodríguez、Roberto Sanz
DOI:10.1021/acs.orglett.2c03411
日期:2022.11.4
synthesis of sulfur- or selenium-containing indeno[1,2-b]chromene derivatives from o-(alkynyl)styrenes substituted at the triple bond with a thio- or seleno-aryl group is described. The reaction involves a double cyclization process through a proposed key gold–cyclopropyl carbene intermediate that evolves by the intramolecularaddition of an aromatic to the cyclopropane ring, affording polycyclic structures
金 (I) 催化的级联反应,用于立体选择性合成含硫或含硒的茚并 [1,2- b ] 色烯衍生物,从邻(炔基)苯乙烯在三键处被硫代或硒代芳基取代组进行了说明。该反应涉及通过提出的关键金-环丙基卡宾中间体的双环化过程,该中间体通过将芳族化合物分子内加成到环丙烷环上而形成,提供多环结构。使用带有手性配体的金 (I) 配合物研究了对映选择性版本。
Leandri et al., Journal of the Chemical Society, 1957, p. 52,54
作者:Leandri et al.
DOI:——
日期:——
Visible-Light-Promoted Thiolation of Benzyl Chlorides with Thiosulfonates via a Photoactive Electron Donor–Acceptor Complex
作者:Chao Gong、Jialun Huang、Liuyan Cai、Yilong Yuan、Tonglv Pu、Mingjie Huang、Si-Hai Wu、Lianhui Wang