Reductive Amination/Cyclization of ω-Trifluoromethyl Keto Esters to Trifluoromethylated δ-Amino Alcohols and Lactams
作者:Wen Wan、Jie Hou、Haizhen Jiang、Zongqian Yuan、Goubin Ma、Gang Zhao、Jian Hao
DOI:10.1002/ejoc.200901424
日期:2010.3
A reductive amination/cyclization approach towards biologically interesting trifluoromethylated four- to seven-membered ring lactams from simply prepared ω-trifluoromethyl keto esters in good to excellent yields has been developed. In addition, trifluoromethylated δ-amino alcohols were also obtained directly from an unexpected reduction of the corresponding y-imino esters in the presence of an excess
已经开发出一种还原胺化/环化方法,用于从简单制备的 ω-三氟甲基酮酯中制备具有生物学意义的三氟甲基化四至七元环内酰胺,收率良好至极好。此外,三氟甲基化的δ-氨基醇也直接从相应的y-亚氨基酯在过量NaBH 4 存在下的意外还原中获得。