Tetrabutylammonium 2-Pyridyltriolborate Salts for Suzuki–Miyaura Cross-Coupling Reactions with Aryl Chlorides
摘要:
Palladium-catalyzed Suzuki-Miyaura cross-coupling reactions of tetrabutylammonium 2-pyridyltriolborate salts with various aryl (heteroaryl) chlorides can produce the corresponding desired coupling products with good to excellent yields. These tetrabutylammonium salts are more reactive than the corresponding lithium salts. The coupling reactions with aryl chlorides progressed in the presence of PdCl(2)dcpp (3 mol %) and Cul/MeNHCH2CH2OH (20 mol %) in anhydrous DMF without bases.
Palladium-catalyzed Suzuki-Miyaura cross-coupling reactions of tetrabutylammonium 2-pyridyltriolborate salts with various aryl (heteroaryl) chlorides can produce the corresponding desired coupling products with good to excellent yields. These tetrabutylammonium salts are more reactive than the corresponding lithium salts. The coupling reactions with aryl chlorides progressed in the presence of PdCl(2)dcpp (3 mol %) and Cul/MeNHCH2CH2OH (20 mol %) in anhydrous DMF without bases.
Synthesis and characterization of a tetradentate PNCP iridium complex for catalytic alkane dehydrogenation
作者:Xiangqing Jia、Zheng Huang
DOI:10.1007/s11426-015-5421-y
日期:2015.8
novel hydrido iridium chloride complex supported by a tetradentate PNCP ligand has been synthesized and characterized. Upon activation with NaOtBu, the PNCP-IrHCl complex is active for transfer dehydrogenation of cyclic and linear alkanes.
合成并表征了由四齿PNCP配体支撑的新型氢化铱氯化氢配合物。用NaO t Bu活化后,PNCP-IrHCl络合物对环状和直链烷烃的转移脱氢具有活性。