Starting from Styrene: A Unified Protocol for Hydrotrifluoromethylation of Diversified Alkenes
作者:Yi-Fei Yang、Jin-Hong Lin、Ji-Chang Xiao
DOI:10.1021/acs.orglett.1c03630
日期:2021.12.3
In contrast with unactivated alkenes, the corresponding hydrotrifluoromethylation of styrene has remained challenging due to the strong propensity of styrene for oligomerization and polymerization. On the basis of our newly developed trifluoromethylation reagent, TFSP, herein we present a general method for the hydrotrifluoromethylation of styrene under photoredox catalysis. The substrate scope was
Versatile Palladium-Catalyzed Approach to Acyl Fluorides and Carbonylations by Combining Visible Light- and Ligand-Driven Operations
作者:Yi Liu、Cuihan Zhou、Meijing Jiang、Bruce A. Arndtsen
DOI:10.1021/jacs.2c01951
日期:2022.6.1
We describe the development of a general palladium-catalyzed carbonylative method to synthesize acyl fluorides from aryl, heteroaryl, alkyl, and functionalized organic halides. Mechanistic analysis suggests that the reaction proceeds via the synergistic combination of visible light photoexcitation of Pd(0) to induce oxidative addition with a ligand-favored reductive elimination. These together create
A Visible Light Driven Nickel Carbonylation Catalyst: The Synthesis of Acid Chlorides from Alkyl Halides
作者:Kristian El Chami、Yi Liu、Mohammed A. Belahouane、Yiyang Ma、Pierre‐Louis Lagueux‐Tremblay、Bruce A. Arndtsen
DOI:10.1002/anie.202213297
日期:2023.3
A visible light driven nickel carbonylation catalyst has been develop. This offers a method for carbonylative coupling reactions with an earth abundant metal at ambient temperature for the conversion of alkyl halides into synthetically versatile acid chlorides. The acid chlorides can then be transformed into an array of challenging ester, thioester and amide products.