A Straightforward Entry to γ-Trifluoromethylated Allenamides and Their Synthetic Applications
作者:Gwilherm Evano、Nicolas Blanchard、Céline Guissart、Aymeric Dolbois、Cédric Tresse、Sarah Saint-Auret
DOI:10.1055/s-0035-1562518
日期:——
allenamides were obtained in good to excellent yields through a base-induced isomerization from the corresponding protected trifluoromethylated propargylic amines. This method, which simply required the treatment of the starting propargylic amines with sodium hydroxide in THF, was found to be fairly general and tolerates various alkyl and aryl substituents and a range of protecting groups on the nitrogen
通过碱诱导异构化,从相应的受保护的三氟甲基化炔丙胺中获得了 γ-三氟甲基化丙烯酰胺,收率非常好。这种方法只需要在 THF 中用氢氧化钠处理起始炔丙胺,被发现相当通用,并且可以耐受各种烷基和芳基取代基以及氮原子上的一系列保护基团。研究了 γ-三氟甲基化丙二烯酰胺的反应性,发现它们是自由基和金(I)催化环化产生氟烷基化氮杂环的极好底物。