We report a chelation-assisted C–H arylation of various indoles with sterically and electronically diverse (hetero)arylsilanes enabled by cost-effective Cp*-free cobaltcatalysis. Key to the success of this strategy is the judicious choice of copper(II) fluoride as a bifunctional sliane activator and catalyst reoxidant. This methodology features a broad substrate scope and good functional group compatibility
N -Arylsulfonylsubstituted- 1H indole derivatives as small molecule dual inhibitors of signal transducer and activator of transcription 3 (STAT3) and tubulin
Signaltransducer and activator of transcription (STAT3) is a proposed therapeutic target for the development of anti-cancer agents. In this report, a series of N-arylsulfonylsubstituted-1H indole derivatives were designed and synthesized as STAT3inhibitors, their anti-proliferative activities were evaluated against a number of tumor cells, some potent compounds exhibited IC50 values less than 10 μM
diacetate mediated method for selective chlorination, bromination, and iodination of indole C–H bonds using sodium halide as a source for analogous halogenations. The combination of NaX and phenyliodine diacetate provides an invincible system for halogenation of indoles. This protocol was compatible with a wide array of indole substrates and provides straight forward access to potential halogenated arenes
[EN] OXADIAZOLE DERIVATIVE, PREPARATION METHOD THEREFOR AND USE THEREOF<br/>[FR] DÉRIVÉ D'OXADIAZOLE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION<br/>[ZH] 一种噁二唑衍生物及其制备方法和用途
Halomonochloride compounds (ClCl, BrCl, ICl) generated in situ from N-halosuccinimide and catalytic chlorotrimethylsilane (TMSCl, 0.1 equiv) can efficiently halogenate aromatic compounds to give halogenated products in good to excellent yields and selectivities. The reaction can be carried out at room temperature or at lower temperatures, requires only one hour, is practical to apply to a wide range of substrates, and provides a simple access to a variety of haloarene compounds.