Vinyl Nosylates: An Ideal Partner for Palladium-Catalyzed Cross-Coupling Reactions
作者:Nicolas P. Cheval、Anna Dikova、Aurélien Blanc、Jean-Marc Weibel、Patrick Pale
DOI:10.1002/chem.201300127
日期:2013.7.1
In a hurry to leave! Nosylates act as an excellent leaving group in various palladium‐catalyzed cross‐couplings, such as Suzuki, Stille, Heck, and Sonogashira reactions (see scheme). Crystalline, stable, and cheap vinyl and aryl nosylates proved better than classical halides and triflates, consistently giving higher yields of coupling products. Their usefulness in CC bond formation was also demonstrated
赶紧离开!在各种钯催化的交叉偶联反应中,如Suzuki,Stille,Heck和Sonogashira反应(参见方案),Nosylates都是极好的离去基团。结晶,稳定且便宜的乙烯基和芳基壬酸酯被证明比传统的卤化物和三氟甲磺酸酯更好,始终提供更高的偶联产物收率。它们的有用性用C C键的形成也是由生物碱dubamine的快速合成证明。