Air-stable, recyclable, and time-efficient diphenylphosphinite cellulose-supported palladium nanoparticles as a catalyst for Suzuki–Miyaura reactions

• Qingwei Du and
• Yiqun Li

Beilstein J. Org. Chem. 2011, 7, 378–385, doi:10.3762/bjoc.7.48

• obtained in good to excellent yield under mild reaction conditions. Moreover, the catalyst could be easily recovered by simple filtration and reused for at least 6 cycles without losing its activity. Keywords: diphenylphosphinite cellulose; heterogeneous catalysis; nanopalladium; polymer-supported

• . Moreover, it showed excellent catalytic activity in the Suzuki–Miyaura coupling reaction of various aryl haildes bearing electron-withdrawing and/or electron-donating groups. Results and Discussion Synthesis and characterization of Cell–OPPh2 and Cell–OPPh2–Pd0 It is well known that nanopalladium shows

• unique reactivity in various organic reactions. However, it is very difficult to use the nanopalladium as practical catalyst because of its tendency to agglomerate and its sensitivity to air and moisture. The Cell–OPPh2–Pd0 catalyst was prepared with diphenylphosphinite cellulose and palladium dichloride