Photocatalytic Cross-Couplings of Aryl Halides Enabled by <i>o</i>-Phosphinophenolate and <i>o</i>-Phosphinothiophenolate
作者:Ni Shen、Runhan Li、Can Liu、Xuzhong Shen、Wei Guan、Rui Shang
DOI:10.1021/acscatal.1c05941
日期:2022.3.4
o-Phosphinophenolate and o-phosphinothiophenolate are potent photocatalysts with strong reducing ability to activate aryl chlorides and bromides under visible light for borylation, arylation, and phosphorylation. Experimental and theoretical studies revealed that the o-diphenylphosphino substituent results in a narrow optical gap and facilitates intersystem crossing to access triplet states, which
o -Phosphinophenolate 和o -phosphinothiophenolate是有效的光催化剂,具有很强的还原能力,可在可见光下活化芳基氯化物和溴化物,进行硼化、芳基化和磷酸化。实验和理论研究表明,邻二苯基膦取代基会导致窄的光学间隙并促进系统间交叉进入三重态,从而促进酚盐和苯硫酚作为有效的可见光-光氧化还原催化剂发挥作用。本文提出的结果表明合成改性的酚盐和苯硫酚盐作为光氧化还原催化剂的前景广阔。