Palladium-Catalyzed Oxidative [2 + 2 + 1] Annulation of 1,7-Diynes with H<sub>2</sub>O: Entry to Furo[3,4-<i>c</i>]quinolin-4(5<i>H</i>)-ones
作者:Xuan-Hui Ouyang、Fang-Lin Tan、Ren-Jie Song、Wei Deng、Jin-Heng Li
DOI:10.1021/acs.orglett.8b02883
日期:2018.11.2
A novel cascade annulation of 1,7-diynes with water has been developed for the synthesis of furo[3,4-c]quinolin-4(5H)-one skeletons with high atom- and step-economy. The transformation was enabled by a palladium catalyst in the presence of copper salt as the promoter, involving the formation of one C–C bond and two C–O bonds. Moreover, the reaction exhibits good tolerance of functional groups and broad
已经开发了一种新型的1,7-二炔用水级联反应,用于合成呋喃[3,4- c ]喹啉-4(5 H)-具有高原子经济性和阶梯经济性的骨架。在铜盐作为促进剂的情况下,钯催化剂可实现转化,包括一个C–C键和两个C–O键的形成。此外,该反应显示出对官能团的良好耐受性和广泛的底物范围。值得注意的是,对照实验支持从水中引入新的氧原子。