Pd(0)-Catalyzed Cross-Coupling of 1,1-Diboronates with 2,2 '-Dibromobiphenyls: Synthesis of 9H-Fluorenes

An efficient and mild synthesis of 9H-fluorene derivatives through a Pd(0)-catalyzed cross-coupling reaction of 1,1-diboronates with 2,2'-dibromobiphenyls has been developed. This reaction features high yields, operational simplicity, and mild reaction conditions, thus providing an excellent alternative to published methods for 9H-fluorene synthesis.National Basic Research Program of China (973 Program) [2012CB821600]; Natural Science Foundation of China [21472004, 21332002]SCI(E)EIPubMedARTICLElihuan8761@163.com; wangjb@pku.edu.cn157779-77848