Electrochemical oxidation-induced benzyl C H carbonylation for the synthesis of aromatic α-diketones
作者:Yu-Fang Tan、Yuan Chen、Rui-Xue Li、Zhi Guan、Yan-Hong He
DOI:10.1016/j.tetlet.2021.153593
日期:2022.1
direct carbonylation of benzyl CH bond for the synthesis of aromatic α-diketones is described. In this process, tetrabutylammonium iodide (nBu4NI) not only acts as an electrolyte, but its iodine anion is oxidized to an iodine radical at the anode, acting as a hydrogen atom transfer agent. The iodine radical extracts the benzyl hydrogen atom and causes the carbonylation of the benzyl position, where O2 in
描述了电化学氧化诱导的苄基 C H 键直接羰基化合成芳族 α-二酮。在这个过程中,四丁基碘化铵(n Bu 4 NI)不仅起到电解质的作用,而且其碘阴离子在阳极被氧化成碘自由基,起到氢原子转移剂的作用。碘自由基提取苄基氢原子并引起苄基位置的羰基化,其中空气中的O 2用作氧源。
Practical Method for Transforming Alkynes into α-Diketones
作者:Zhonghui Wan、Chauncey D. Jones、David Mitchell、John Y. Pu、Tony Y. Zhang
DOI:10.1021/jo051793g
日期:2006.1.1
[GRAPHICS]Oxidation of alkynes to alpha-dicarbonyl derivatives through a convenient one-pot procedure via a Bronsted acid-promoted "hydration" and a DMSO-based oxidation sequence has been achieved in high yields. The scope and limitations of the reaction have also been investigated.