[EN] PHOTOCATALYST SYSTEM AND USE THEREOF IN A PHOTOCATALYTIC PROCESS<br/>[FR] SYSTÈME PHOTOCATALYTIQUE ET SON UTILISATION DANS UN PROCESSUS PHOTOCATALYTIQUE
申请人:FUNDACIO INSTITUT CATALA DINVESTIGACIO QUIM ICIQ
公开号:WO2019096832A1
公开(公告)日:2019-05-23
Photocatalyst system and use thereof in a photochemical process The invention relates to a photocatalyst system comprising, in the absence of a further photosensitizer other than the compound of formula (III) or a mixture thereof: (i) a nickel(II) salt, (ii) a compound of formula (III) or a mixture thereof (iii) optionally, a ligand; wherein, preferably, the molar ratio of the nickel (II) salt, the compound of formula (III) and, optionally, the ligand is 1:1:1; or, alternatively, wherein the molar ratio of the nickel (II) salt, the compound of formula (III) and, optionally, the ligand is 1:2:1. It also relates to the use of said photocatalyst system in combination with an external visible light source in photocatalytic cross- coupling reactions, and, more particularly to a process for the cross-coupling of bromide electrophiles with substrates comprising a C-H bond.
光催化剂系统及其在光化学过程中的使用。本发明涉及一种光催化剂系统,其包括以下成分,除了式(III)化合物或其混合物外没有其他光敏剂:(i)一种镍(II)盐,(ii)一种式(III)化合物或其混合物,(iii)可选地,一种配体;其中,最好的情况是,镍(II)盐、式(III)化合物和可选的配体的摩尔比为1:1:1;或者,另一种情况是,镍(II)盐、式(III)化合物和可选的配体的摩尔比为1:2:1。本发明还涉及所述光催化剂系统与外部可见光源结合在光催化交叉偶联反应中的使用,更特别地,涉及一种用于溴化物亲电试剂与含C-H键底物之间交叉偶联的过程。