作者:Motoki Asahara、Taku Katayama、Yasuo Tohda、Nagatoshi Nishiwaki、Masahiro Ariga
DOI:10.1248/cpb.52.1334
日期:——
regioselective C-C bond formation. When 1-methyl-3,6,8-trinitro-2-quinolone (TNQ) was treated with enamines, nucleophilic addition readily occurred at the 4-position, and succeeding hydrolysis of enamine moiety followed by elimination of nitrous acid furnished 4-acylmethyl-1-methyl-6,8-dinitro-2-quinolones. The same products could be prepared by the reaction of TNQ with ketones in the presence of triethylamine
非天然的1-甲基-2-喹诺酮衍生物是通过区域选择性CC键形成而合成的。用烯胺处理1-甲基-3,6,8-三硝基-2-喹诺酮(TNQ)时,容易在4-位发生亲核加成,随后烯胺部分水解,随后消除亚硝酸提供的4-酰基甲基-1-甲基-6,8-二硝基-2-喹诺酮类。在三乙胺存在下,TNQ与酮反应可制得相同的产物。本反应使得能够引入被烷基,芳基或杂芳基取代的各种酰基甲基。