HFIP-Empowered One-Pot Synthesis of C4-Aryl-Substituted Tetrahydroquinolines with Propargylic Chlorides and Anilines
作者:Seung Hoon Lee、Hyung Min Chi
DOI:10.1021/acs.orglett.2c04299
日期:2023.2.24
one-pot synthesis of C4-aryl-substituted tetrahydroquinolines from simple anilines and readily accessible propargylic chlorides has been developed. Activation of the C–Cl bond by 1,1,1,3,3,3-hexafluoroisopropanol turned out to be the key interaction, which allowed C–N bond formation under an acidic medium. Propargylated aniline is formed as an intermediate via propargylation, and subsequential cyclization
已经开发出无过渡金属、实用的 C4-芳基取代的四氢喹啉的一锅法合成,从简单的苯胺和容易获得的炔丙基氯。1,1,1,3,3,3-六氟异丙醇对 C-Cl 键的激活被证明是关键的相互作用,它允许在酸性介质下形成 C-N 键。炔丙基化苯胺作为中间体通过炔丙基化形成,随后环化和还原得到 4-芳基化四氢喹啉。为了证明合成效用,黄喹诺酮 F 和 I 的全合成已经完成。