In this report, a palladium catalyzed direct trisallylation of azoles with alkyne via a novel subsequent mono C(sp2)–H allylation/olefin isomerization/y-selective double C(sp3)–H allylation process was developed. A wide range of substituted trisallylated azoles bearing all quaternary carbon centers has been synthesized efficiently and with high atom economy.
本报告开发了一种钯催化唑类化合物与炔烃直接三烯丙基化的新工艺,该工艺采用了新型的后续单 C(sp2)-H 烯丙基化/烯烃异构化/y-选择性双 C(sp3)-H 烯丙基化工艺。我们以较高的原子经济性高效合成了一系列含有所有季碳中心的取代三烯丙基唑。