期刊
ORGANOMETALLICS
卷 40, 期 3, 页码 408-417出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.organomet.0c00726
关键词
-
资金
- National Science and Engineering Research Council (NSERC) of Canada
- Canada Foundation for Innovation (CFI)
- FRQNT Centre in Green Chemistry and Catalysis (CGCC)
- Universite de Sherbrooke
Anionic NHC ligands derived from N-iminoimidazolium ylides were used for the synthesis of NHC-iridium(III) complexes, showing high catalytic activity in amine alkylation reactions. Steric bulk of the NHC unit and basicity of the anionic tether were found to be key factors affecting catalytic activity.
Anionic NHC ligands recently developed in our group, derived from N-iminoimidazolium ylides, were used to synthesize NHC-iridium(III) complexes. Their catalytic activities were evaluated in the amine alkylation of anilines using borrowing hydrogen catalysis. The high-yielding synthesis of a small library of complexes allowed a rapid screening of the ideal steric bulk of the NHC unit and basicity of the anionic tether for the investigated model reaction. A bulky aromatic N group on the imidazolidene moiety is required to achieve high catalytic activity, and the latter is proportional to the basicity of the anionic group. A selected substrate scope of the reaction was performed, providing fair to excellent yields of the desired alkylated anilines.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据