Cascade Access to Carboline Carboxylates from Indolyl Ketoximes and Acrylates via Palladium-Catalyzed C–H Bond Alkenylation/Annulation
作者:Cheng-Cai Xia、Ya-Fei Ji、Xiao-Pan Fu、Lu Chen、Gao-Rong Wu、Hong-Wei Liu
DOI:10.1055/s-0040-1707192
日期:2021.1
An efficient palladium-catalyzed C–H bond alkenylation/annulation strategy to access carboline carboxylates from indolyl ketoximes and acrylates through C–C/C–N bond formation is reported. Indolyl ketoximes not only direct ortho-olefination with acrylates, but also undergo an intramolecular N–O bond cleavage/traceless annulation to construct carboline carboxylates straightforwardly in this concise
报道了一种有效的钯催化 C-H 键烯基化/环化策略,通过 C-C/C-N 键形成从吲哚基酮肟和丙烯酸酯中获取咔啉羧酸盐。吲哚基酮肟不仅直接与丙烯酸酯进行邻烯化,而且还经历分子内 N-O 键断裂/无痕环化,以这种简洁的方法直接构建咔啉羧酸盐。