作者:Shuqing Chen、Ze-Shui Liu、Tao Yang、Yu Hua、Zhiyu Zhou、Hong-Gang Cheng、Qianghui Zhou
DOI:10.1002/anie.201803865
日期:2018.6.11
Reported is a novel palladium(II)‐initiated Catellani‐type reaction that utilizes widely accessible aryl boronic acids as the substrates instead of aryl halides, thereby greatly expanding the existing scope of this powerful transformation. This borono‐Catellani reaction was promoted by cooperative catalysis between Pd(OAc)2 and the inexpensive 5‐norbornene‐2‐carbonitrile. Practicality is the striking
据报道,是一种新颖的钯(II)引发的卡塞拉尼型反应,该反应利用可广泛使用的芳基硼酸而不是卤代芳基作为底物,从而大大扩展了这种有力转化的现有范围。Pd(OAc)2之间的协同催化促进了这种硼诺-卡泰拉尼反应以及价格低廉的5-降冰片烯2-腈。实用性是该反应的显着特征:它在环境温度下对空气开放,不需要膦配体。这种温和,化学选择性和可扩展的方案与各种现成的官能化芳基硼酸和溴化物以及终止烯烃(50例,收率39–97%)兼容。此外,还证实了卡诺拉尼和经典卡特兰尼反应之间的正交反应性。预期这项工作将为开发新颖的卡泰拉尼型反应开辟新途径。