Direct use of methanol instead of formaldehyde or paraformaldehyde: Acceptorless dehydrogenative coupling for the synthesis of arylhydrazones catalyzed by a metal–ligand iridium bifunctional catalyst
作者:Beixuan Dong、Yiqian He、Xiangchao Xu、Peng Zhang、Qixun Shi、Feng Li
DOI:10.1016/j.jcat.2024.115685
日期:2024.10
The strategy of the synthesis of arylhydrazones via acceptorless dehydrogenative coupling of arylhydrazines with methanol was proposed and accomplished. In the presence of [Cp*Ir(2,2′-bpyO)(HO)] (0.5 mol %), a series of desirable products were obtained in high yields. It was found that functional groups in bpy are crucially important for the catalytic activity of iridium complexes. Furthermore, DFT