Ru(III)-catalyzed construction of variously substituted quinolines from 2-aminoaromatic aldehydes (ketones) and isoxazoles: Isoxazoles as cyclization reagent and cyano sources
作者:Di Hu、Chao Pi、Wei Hu、Xiliang Han、Yangjie Wu、Xiuling Cui
DOI:10.1016/j.cclet.2021.12.072
日期:2022.8
N-O bond cleavage and fragmentation. Variously substituted (especially 6- or 7-substituted) quinolines could be easily afforded. This procedure features wide functional group compatibility, efficiency and avoiding toxic cyano source. Meanwhile, this protocol could be successfully applied to scale-up synthesis. Further chemical transformations of 3-cyanoquinoline could give some valuable skeletons, demonstrating
开发了 Ru(Ⅲ) 催化的 2-氨基芳香醛(酮)和异恶唑的环化反应,得到多种 3-氰基喹啉。值得注意的是,异恶唑通过NO 键断裂和断裂充当环化试剂和无毒氰基源。可以很容易地提供各种取代(尤其是 6 或 7 取代)的喹啉。该程序具有广泛的官能团兼容性、效率和避免有毒氰基源。同时,该协议可以成功地应用于放大合成。3-氰基喹啉的进一步化学转化可以产生一些有价值的骨架,证明其在合成应用中的潜力