synthesis. Herein, we have developed a chemoselective copper-catalyzed carbene insertion protocol onto N−H bonds of tryptamine derivatives. Divergent insertion products are obtained by varying the nucleophilicity of the aliphatic NH of tryptamine with electron-donating or electron-withdrawing groups. The reaction provided N−H insertion products with broad substrate scope in good yields.
轻松获得具有
化学选择性的不同产物在有机合成中非常重要。在此,我们开发了一种
化学选择性
铜催化卡宾插入
色胺衍
生物 N−H 键的方案。通过改变
色胺的脂肪族NH与给电子或吸电子基团的亲核性来获得不同的插入产物。该反应以良好的产率提供了具有广泛底物范围的 NH 插入产物。