AbstractWe present the first solvent‐free, mechanochemical protocol for a palladium‐catalyzed Tsuji–Trost allylation. This approach features exceptionally low catalyst loadings (0.5 mol %), short reaction times (<90 min), and a simple setup, eliminating the need for air or moisture precautions, making the process highly efficient and environmentally benign. We introduce solid, nontoxic, and easy‐to‐handle allyl trimethylammonium salts as valuable alternative to volatile or hazardous reagents. Our approach enables the allylation of various O‐, N‐, and C‐nucleophiles in yields up to 99 % even for structurally complex bioactive compounds, owing to its mild conditions and exceptional functional group tolerance.
摘要 我们首次提出了钯催化辻-特罗斯特烯丙基化反应的无溶剂机械化学方案。这种方法的特点是催化剂负载量极低(0.5 摩尔%)、反应时间短(90 分钟)、设置简单,无需空气或湿气防范措施,因此该工艺高效且对环境无害。我们引入了固体、无毒且易于处理的烯丙基三甲基铵盐,作为挥发性或有害试剂的重要替代品。由于烯丙基三甲基铵的条件温和,对官能团的耐受性极强,即使是结构复杂的生物活性化合物,我们的方法也能使各种 O-、N- 和 C-亲核物的烯丙基化率高达 99%。