Copper(<scp>ii</scp>) accelerated azide–alkyne cycloaddition reaction using mercaptopyridine-based triazole ligands
作者:Karen Gonzalez-Silva、David Rendon-Nava、Alejandro Alvarez-Hernández、Daniel Mendoza-Espinosa
DOI:10.1039/c9nj03974k
日期:——
solvents without the need for an external reducing agent. Experimental results suggest that the copper(II) species undergo reduction to catalytic copper(I) via alcohol oxidation during an induction period. The scope of the click reaction is broad including the high yielding synthesis of a series of mono, bis, and tris-triazoles, using microwave radiation under low catalyst loadings.
我们报告了一系列巯基吡啶官能化的1,2,3-三唑的制备和全面表征,以及它们作为制备铜(II)配合物的配体的用途。配合物1由2-巯基吡啶官能化的三唑(A)支撑,并具有在三唑和吡啶片段上均具有CuCl 2中心配位的聚合物结构,在醇类溶剂中显示了高效的点击型催化性能,而无需外用还原剂。实验结果表明,铜(II)物种通过以下方式还原为催化性铜(I):诱导期酒精氧化。点击反应的范围很广,包括在低催化剂负载下使用微波辐射高产率合成一系列单,双和三三唑。