linear acenes for organic materials applications. Treatment of polychlorinated acenes with the PEPPSI-IPr catalyst and MeMgBr undergo 6–8 concurrent coupling reactions to yield products such as octamethylnaphthalene, which is distorted out of planarity due to the steric interaction between the methyl groups. More sterically demanding Grignard reagents such as PhMgBr coupled cleanly with 9,10-dichloroanthracene
据报道,使用
格氏试剂使多
氯代
苯乙炔的低温Kumada-Corriu交叉偶联条件。我们的工作是通过寻找在有机材料应用中能有效合成功能化线性并苯的交叉偶联反应来进行的。用PEPPSI-IPr催化剂和MeMgBr处理多
氯代
乙炔会同时发生6-8次偶联反应,生成八
甲基萘等产物,由于甲基之间的空间相互作用,该产物由于平面度而变形。对空间要求更高的
格氏试剂(例如PhMgBr)与
9,10-二氯蒽进行清洁偶联,以优异的收率提供了蓝色OLED成分(9,10-二苯基
蒽)等产品。