作者:Megumi Hasegawa、Arisa Nomoto、Takuya Suga、Takahiro Soeta、Yutaka Ukaji
DOI:10.1246/cl.160821
日期:2017.1.5
Palladium-catalyzed C–H alkenylation of C-aryl N-t-butyl nitrones with ethyl acrylate produced ortho-alkenylated benzamide derivatives via isomerization of the nitrone moiety. The use of 1,1,1,3,3,3-hexafluoro-2-propanol/acetic acid as a solvent resulted in effective C–H alkenylation, while competitive 1,3-dipolar cycloaddition was completely suppressed.
钯催化的 C-芳基 N-叔丁基硝酮与丙烯酸乙酯的 C-H 烯基化通过硝酮部分的异构化产生邻烯基化的苯甲酰胺衍生物。使用 1,1,1,3,3,3-六氟-2-丙醇/乙酸作为溶剂导致有效的 C-H 烯基化,同时完全抑制了竞争性 1,3-偶极环加成。