Iodobenzene Dichloride Mediated Sequential C–Cl Bond Formation: A Safe, Convenient and Efficient Method for the Direct α,α-Dichlorination of β-Dicarbonyl Compounds
作者:Xiyan Duan、Junying Ma、Huiyun Zhou、Xinlei Tian、Jianwei Liu
DOI:10.1055/s-0034-1379973
日期:——
Various -keto esters, 1,3-diketones, and -oxo amides are directly converted into their corresponding ,-dichloro--keto esters, 2,2-dichloro-1,3-diketones, and ,-dichloro--oxo amides, respectively, in moderate to high yields, using iodobenzene dichloride in dichloromethane in the presence of 4 angstrom molecular sieves at room temperature. This process is postulated to proceed via the iodobenzene dichloride mediated sequential oxidative -chlorination of the -dicarbonyl substrates.