Synthesis of 8-amino-5,6-quinolinediones from 6-quinolinols and 5,6-dimethoxyquinolines.
作者:Yoshiyasu KITAHARA、Tatsuya NAKAI、Masaro SHIMIZU、Akinori KUBO
DOI:10.1248/cpb.38.2841
日期:——
Twenty-five 8-amino-5, 6-quinolinediones were prepared by copper(II)-catalyzed oxidation of 6-quinolinol in methanol with secondary amines, or by oxidative demethylation of the corresponding 5, 6-dimethoxyquinolines in aqueous acetonitrile with cerium(IV) ammonium nitrate.
在铜(II)催化下,6-喹啉醇在甲醇中与仲胺发生氧化反应,或相应的 5, 6-二甲氧基喹啉在乙腈水溶液中与硝酸铈(IV)铵发生氧化脱甲基反应,制备出 25 种 8-氨基-5, 6-喹啉二酮。