N-Heterocyclic Carbene Adducts of Cyclopalladated Ferrocenylpyridazine: Synthesis, Structural Characterization, and Application in ?-Arylation of Ketones with Aryl Chlorides
作者:Chen Xu、Hong-Mei Li、Zhi-Qiang Wang、Wei-Jun Fu、Yu-Qing Zhang、Bao-Ming Ji
DOI:10.1071/ch12035
日期:——
3-chloro-6-pyridazinylferrocene 1 and its N-heterocyclic carbene adducts 2–3 were synthesized and characterized by 1H NMR and IR spectroscopy, ESI-MS, and elemental analysis. Additionally, detailed structures of complexes 2–3 have been determined by single-crystal X-ray analysis. Complex 3 exhibited high catalytic activity for α-arylation of ketones with aryl chlorides. Typically, using 1 mol % catalyst in the presence
Bromine radical-enhanced HAT activity leading to stoichiometric couplings of methylarenes with acid chlorides
作者:Qiao-Lin Wang、Huawen Huang、Guojiang Mao、Guo-Jun Deng
DOI:10.1039/d2gc02972c
日期:——
The stoichiometric coupling of readily available methylarenes and diverse acid chlorides into α-aryl ketones, a valued structural motif present in pharmacologically relevant molecules, has been developed. The utility of this protocol is demonstrated by the late-stage acylation of biologically active molecules in a stoichiometric manner. Mechanistic investigation reveals that the photocatalytically