Copper‐Photocatalyzed Borylation of Organic Halides under Batch and Continuous‐Flow Conditions
作者:Antoine Nitelet、Damien Thevenet、Bruno Schiavi、Christophe Hardouin、Jean Fournier、Rodolphe Tamion、Xavier Pannecoucke、Philippe Jubault、Thomas Poisson
DOI:10.1002/chem.201806345
日期:——
The copper‐photocatalyzed borylation of aryl, heteroaryl, vinyl and alkyl halides (I and Br) was reported. The reaction proceeded using a new heteroleptic Cu complex under irradiation with blue LEDs, giving the corresponding boronic‐acid esters in good to excellent yields. The reaction was extended to continuous‐flow conditions to allow an easy scale‐up. The mechanism of the reaction was studied and
据报道,铜光催化的芳基,杂芳基,乙烯基和烷基卤化物(I和Br)的硼化反应。该反应在蓝色LED的照射下使用一种新型的杂铜配合物进行,从而得到了相应的硼酸酯,收率良好至极佳。反应扩展到连续流动条件,以易于放大。研究了该反应的机理,并提出了基于还原淬灭(Cu I / Cu I * / Cu 0)的机理。