Deploying N-nitrosaccharin reagents in combination with Lewis acid activation enables the facile, regio- and chemoselective nitration of (het)aryl silanes, allowing the introduction of nitro group under unprecedently mild conditions suitable for the late-stage nitration of complex and polyfunctionalized molecules. Theoretical and experimental mechanistic investigations formulate a plausible mechanism
将N-硝基
糖精试剂与
路易斯酸活化相结合,可以实现(杂)芳基
硅烷的轻松、区域选择性和
化学选择性硝化,从而可以在前所未有的温和条件下引入硝基,适合复杂和多官能化分子的后期硝化。理论和实验机制研究制定了涉及“惠兰过渡态”的合理机制。