The direct amination of benzoxazoles at C2 using N-heterocycles as nitrogen sources has been developed for the first time. Several kinds of inexpensive oxidants and also electricity were effective for this transformation in the presence of 2,2,6,6-tetramethylpiperidine-N-oxyl. This metal-free and operationally simple reaction can afford a variety of important C,N′-linked bis-heteocycles in moderate
Electrochemical Desulfurizative Amination of Heteroaromatic Thiols by Iodine Catalysis
作者:Tingting Ran、Wei Jiang、Xin Fu、Jinguo Long、Jie Liu
DOI:10.1002/cctc.202301750
日期:——
We report that anodic oxidation of 2-iodobenzoic acid enables a hypervalent iodine (III) electrocatalysis of desulfurizative amination of heteroaromatic thiols. This protocol features broad substrate scope and wide functional group tolerance, delivering the target N-heterocyclic amines with good to excellent yields.