Efficient route to 1,3-Di-N-imidazolyl benzene.: A comparison of monodentate vs bidentate carbenes in Pd-catalyzed cross coupling

被引:103
作者
Vargas, VC [1 ]
Rubio, RJ [1 ]
Hollis, TK [1 ]
Salcido, ME [1 ]
机构
[1] Univ Calif Riverside, Dept Chem, Riverside, CA 92521 USA
关键词
D O I
10.1021/ol035906z
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
[GRAPHICS] A new bis(carbene) ligand architecture has been developed and was evaluated in the Suzuki-Miyaura cross-coupling reaction of various aryl halides with phenylboronic acid. Several new bis(carbene) ligands were tested in different carbene:Pd ratios. Pd(OAc)(2) and Pd-2(dba)(3) were compared for efficiency as a Pd source. It was found that the Pd(OAc)(2)/bis(carbene) system formed a catalyst for the activation of chlorobenzene.
引用
收藏
页码:4847 / 4849
页数:3
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