Ionic liquid-mediated benzoyl transfer-coupling in the Suzuki and Sonogashira reactions and aryl transfer-coupling by decarbonylative Heck reaction, using N-Benzoyl-saccharin (NBSac) as reagent
作者:Shruti S. Malunavar、Suraj M. Sutar、Pavankumar Prabhala、Rajesh G. Kalkhambkar、Kenneth K. Laali
DOI:10.1016/j.tetlet.2020.151987
日期:2020.6
of N-benzoyl-saccharin (NBSac) as reagent for selective benzoyl transfer-coupling in the Suzuki reaction in BMIM-IL/[PAIM][NTf2] as solvent/base, and in the Sonogashira reaction employing guanidinium-IL (GIL) as solvent, are demonstrated. Decarbonylative aryl transfer-coupling occurs in the Heck reaction employing GIL as solvent. The reactions are catalyzed by Pd(OAc)2 or NiCl2(dppp), are performed
在BMIM-IL / [PAIM] [NTf 2 ]作为溶剂/碱的Suzuki反应中以及在使用胍基-IL的Sonogashira反应中,N-苯甲酰糖精(NBSac)作为选择性苯甲酰转移偶联试剂的功效GIL)作为溶剂进行了演示。在使用GIL作为溶剂的Heck反应中发生脱羰基芳基转移偶联。该反应由Pd(OAc)2或NiCl 2(dppp)催化,在温和条件下以高收率进行,并且具有回收/再利用IL溶剂的潜力。总之,这些方法提供了对二芳基酮,酮-乙炔和二芳基-乙烯的各种文库的便捷访问。