Optimized Palladium(0)-catalyzed Suzuki Cross-coupling Reaction of Polystyrene-supported Selenenyl Flavanones: A Convenient Preparation of Biaryl-chromen-4-one
作者:E Tang、Wen Li、Zhangyong Gao、Lianpeng Zhang、Qiushi Ma
DOI:10.1002/cjoc.201280023
日期:2012.3
Application of the Suzuki cross‐coupling reaction for efficient synthesis of diverse substituted biaryl‐chromen‐4‐ones using an optimized palladium(0) catalyst system is reported. The coupling of arylboronic acids with the resin‐bound bromoflavanones which were prepared by organoselenium‐induced regioselective intramolecular cyclization of bromo‐2‐hydroxylchalcones proceeded smoothly. Biaryl‐chromen‐4‐ones
据报道,使用优化的钯(0)催化剂体系,Suzuki交叉偶联反应在高效合成各种取代的联芳基-铬--4-酮中的应用。芳基硼酸与树脂键合的溴代黄酮的偶联反应顺利进行,该反应是通过有机硒诱导的溴代-2-羟甲基卤代烷的区域选择性分子内环化反应而进行的。联芳基-苯并吡喃-4-酮是由随后的氧化硒合成顺良好总产量在剔除。