Aza-Henry Reaction with CF<sub>3</sub>-Ketimines: An Efficient Approach to Trifluoromethylated β-Nitroamines, 1,2-Diamines, α-Aminooximes, and Imidazolidinones
作者:Irina V. Kutovaya、Olga I. Shmatova、Viktor M. Tkachuk、Nina V. Melnichenko、Mikhail V. Vovk、Valentine G. Nenajdenko
DOI:10.1002/ejoc.201500898
日期:2015.10
and trifluoroacetophenones were studied in aza-Henry reactions with nitroalkanes. We found that nitromethane and nitropropane react with CF3-substituted ketimines to form the target β-nitroamines in high yield. The aza-Henry reaction proceeded under mild conditions in the presence of an appropriate base. A new simple method for the synthesis of β-nitroamines bearing CF3 group was developed. α-CF3-β-nitroamines
在氮杂-亨利与硝基烷烃的反应中研究了由三氟丙酮、六氟丙酮和三氟苯乙酮合成的 CF3 取代的酮亚胺。我们发现硝基甲烷和硝基丙烷与 CF3 取代的酮亚胺反应以高产率形成目标 β-硝基胺。aza-Henry 反应在适当的碱存在下在温和条件下进行。开发了一种新的简单的合成带有CF3基团的β-硝基胺的方法。α-CF3-β-硝基胺可以很容易地转化为三氟甲基化的 1,2-二胺、α-氨基肟和咪唑烷酮。