A practical and efficient protocol for Ag/Ru-cocatalyzed regioselective C-H amination of 8-hydroxyquinoline esters with pyrazoles was developed, This reaction proceeded smoothly via a photoredox-mediated direct C-H/N-H oxidative coupling process. The remarkable features of this reaction include the wide substrate scope, mild reaction conditions and high regioselectivity at the C4 site of the quinolinyl
开发了一种实用有效的方案,用于
吡咯经Ag / Ru催化的
8-羟基喹啉酯的区域选择性CH胺化反应。该反应通过光氧化还原介导的直接CH / NH氧化偶合过程顺利进行。该反应的显着特征包括广泛的底物范围,温和的反应条件和在
喹啉基部分的C4位上的高区域选择性。