Organocalcium Hydride-Catalyzed Intramolecular C(sp<sup>3</sup>)–H Annulation of Functionalized 2,6-Lutidines
作者:Shuo Li、Xian Xu、Qianlin Sun、Xin Xu
DOI:10.1021/acs.joc.2c02800
日期:2023.2.3
This work reports an intramolecularC(sp3)–H annulation of functionalized 2,6-lutidines catalyzed by an organocalcium hydride [(DIPPnacnac)CaH(thf)}2] (DIPPnacnac = CH(CMe)(2,6-iPr2–C6H3N)}2). This reaction constitutes a streamlined approach for producing a new family of tetrahydro-1,5-naphthyridines and hexahydropyrido[3,2-b]azocines derivatives in good to excellent yields with high atom efficiency