Well-dispersed palladium(0) nanoparticles with small and narrow size distributions were synthesized conveniently on a graphene oxide (GO) surface. The GO-supported nano-Pd0 was found to be a highly efficient and recyclable catalyst for the carbonylative cross-coupling reaction between arylboronic acids and aryl and carboranyl iodides, respectively. Benzophenone and a series of carboranylaryl ketones, 1-R-2-[C(O)Ar]-1,2-C2B10H10 (R = H, Me, Ph; Ar = C6H5, C6H4-4-OMe and C6H4-4-F), were synthesized and fully characterized. The catalyst was recyclable at least three times with sustained activity.
在氧化
石墨烯(GO)表面方便地合成了分散良好、尺寸分布窄而小的纳米
钯(0)粒子。研究发现,GO 支持的纳米
钯(0)是一种高效且可回收的催化剂,可分别用于芳基
硼酸与芳基
碘化物和
硼烷基
碘化物之间的羰基交叉偶联反应。合成了苯甲酮和一系列
硼烷芳基酮 1-R-2-[C(O)Ar]-1,2-CB10H10(R = H、Me、Ph;Ar =
C6H5、
C6H4-4-OMe 和 -4-F),并对其进行了全面表征。该催化剂可循环使用至少三次,并具有持续的活性。