Synthesis of NHC Ligands Containing a Sulfoxide Moiety and Their Use in Cross-Coupling via a Au(I)/(III) Catalytic Cycle
作者:Takanori Shibata、Rikako Nagai、Sari Okazaki、Shun Nishibe、Mamoru Ito
DOI:10.1246/bcsj.20220013
日期:2022.4.15
We designed and synthesized a new series of NHCs with a sulfoxide moiety as a hemilabile ligand. We investigated the catalytic activities of Au(I)-NHC complexes in the strong oxidant-free cross-coupling of iodoarenes with 1,3,5-trimethoxybenzene. We ascertained that the sulfoxide moiety is critical for the Au(I)/(III) catalytic cycle.
我们设计并合成了一系列新的以亚砜部分作为半可配体的 NHC。我们研究了 Au(I)-NHC 配合物在碘芳烃与 1,3,5-三甲氧基苯的无强氧化剂交叉偶联中的催化活性。我们确定亚砜部分对 Au(I)/(III) 催化循环至关重要。