An efficient chlorination of indoles and electron‐rich arenes with chlorine anion as nucleophile is described. With the use of ethyl phenyl sulfoxide as the promoter, the reaction went smoothly under metal‐free and mild conditions. Various indoles and electron‐rich arenes are converted into the corresponding chlorinated compounds in moderate to excellent yields. A plausible interrupted Pummerer reaction
Simply swapping the counteranions of TMS leads to a switchable regioselectivity in C2– and C3–H thiolation of indoles.
将TMS的对阴离子简单交换可在吲哚的C2和C3-H硫化中导致可切换的区域选择性。
Copper-Catalyzed Synthesis of Indolyl Benzo[<i>b</i>]carbazoles and Their Photoluminescence Property
作者:Tonggang Hao、Long Huang、Yin Wei、Min Shi
DOI:10.1021/acs.orglett.1c01659
日期:2021.7.2
dihydroisobenzofurans with indoles for the rapid construction of indoly benzo[b]carbazoles has been reported, providing the desired products in moderate to good yields under mild conditions along with a broad substrate scope and good functional group tolerance. The photoluminescence property of these indoly benzo[b]carbazoles has also been investigated.
已经报道了铜催化的二氢异苯并呋喃与吲哚的级联环化反应,用于快速构建吲哚苯并[ b ]咔唑,在温和条件下以中等至良好的产率提供所需的产物,同时具有广泛的底物范围和良好的官能团耐受性。还研究了这些吲哚苯并[ b ]咔唑的光致发光特性。
Synthesis of Indole and Biindolyl Triflones: Trifluoromethanesulfonylation of Indoles with Tf<sub>2</sub>O/TTBP (2,4,6-tri-<i>tert</i>-butylpyridine) System
A convenient synthesis of indole triflones is reported. N-Alkyl, aryl and N-H indole triflones were obtained in 82–96% yields by the Tf2O/TTBP System. Biindolyl triflones were accessed in 51–81% yields for the first time by simple treatment of the resulting indole triflones with a base and without any use of organometallic chemistry. An environmentally friendly solvent, Solkane 365/227, can be substituted
据报道,吲哚三烯酮的方便合成。通过Tf 2 O / TTBP系统获得N-烷基,芳基和N- H吲哚三氟酮,产率为82-96%。通过简单地用碱处理所得的吲哚三氟甲磺酸,而不使用任何有机金属化学方法,首次以51-81%的产率获得了Biindolyl三氟甲磺酸。可以使用环保溶剂Solkane 365/227代替该工艺,而不会降低效率。
Electrooxidation products of methylindoles: Mechanisms and structures
platinum anode in acetonitrile containing NaClO4 has been studied. In any case no polymeric deposit on the working electrode was obtained. The identification of the obtained soluble products is described and the mechanisms of formation are discussed. Analogously to the case of unsubstituted indole, electrooxidized 1–3 react through positions 2 and 3. The non polymerization of 1 is explained with the