[EN] REAGENTS AND PROCESS FOR DIRECT C-H FUNCTIONALIZATION<br/>[FR] RÉACTIFS ET PROCÉDÉ POUR LA FONCTIONNALISATION DIRECTE DE LA LIAISON C-H
申请人:STUDIENGESELLSCHAFT KOHLE MBH
公开号:WO2020094673A1
公开(公告)日:2020-05-14
Thianthrene derivative of the Formula (I): wherein R1 to R8 may be the same or different and are selected from hydrogen, Cl, F, a partially or fully fluorinated C1 to C6 alkyl group, and wherein n is 0 or 1, with the proviso that at least one of R1 to R8 is not hydrogen and process for C-H functionalization of aromatic compounds using this compound.
Here, we report the first case of nickel-catalyzed C–H cyanation via arylthianthrenium salts. The reaction features the use of air-stable and inexpensive NiCl2·6H2O as a catalyst for the highly selective construction of cyanation products by aromatic pre-thianthrenation. The mechanism study shows that the formation of aryl radicals is involved. Also, this protocol can be applied to the late-stage functionalization
REAGENTS AND PROCESS FOR DIRECT C-H FUNCTIONALIZATION
申请人:Studiengesellschaft Kohle mbH
公开号:EP3650446A1
公开(公告)日:2020-05-13
The present invention refers to a process for direct C-H functionalization, the reagents used in the process and the use thereof for the direct C-H functionalization as well as the so-obtained products.
Site-selective and versatile aromatic C−H functionalization by thianthrenation
作者:Florian Berger、Matthew B. Plutschack、Julian Riegger、Wanwan Yu、Samira Speicher、Matthew Ho、Nils Frank、Tobias Ritter
DOI:10.1038/s41586-019-0982-0
日期:2019.3
variety of well-defined arene derivatives. Here we report a highly selective aromatic C–H functionalization reaction that does not require a particular directing group or substitution pattern to achieve selectivity, and provides functionalized arenes that can participate in various transformations. We introduce a persistent sulfur-based radical to functionalize complex arenes with high selectivity and obtain