Thioether Ligand-Enabled Cationic Palladium(II)-Catalyzed Electrophilic C–H Arylation of α,β-Unsaturated Oxime Ethers
作者:Takahiro Yamada、Yoshimitsu Hashimoto、Kosaku Tanaka、Nobuyoshi Morita、Osamu Tamura
DOI:10.1021/acs.joc.0c01570
日期:2020.10.2
The use of the cationic palladium(II) catalyst realized electrophilic C–H arylation of α,β-unsaturated O-SEM oximes with arylboronic acids. This Pd-catalyzed electrophilic C–H arylation is facilitated by employing alkyl aryl thioether ligands, and optimization of the ligand structure greatly improves the yield. The resulting α,β-unsaturated oximes would provide access to multisubstituted heterocyclic
阳离子钯(II)催化剂的使用实现了α,β-不饱和O - SEM肟与芳基硼酸的亲电C–H芳基化。通过使用烷基芳基硫醚配体可以促进这种Pd催化的亲电C–H芳基化,配体结构的优化大大提高了收率。所得的α,β-不饱和肟将提供多取代杂环化合物的获得。