High catalytic activity of palladium(II)-exchanged mesoporous sodalite and NaA zeolite for bulky aryl coupling reactions: reusability under aerobic conditions.
Exchange for the better: Mesoporous sodalite and NaA zeolite exchanged with Pd(2+) exhibit remarkably high activity and reusability in C-C coupling reactions under aerobic atmosphere. It is proposed that the catalytic reactions are mediated by a molecular Pd(0) species generated in situ within the pores (see picture), which is oxidized back to Pd(2+) by O(2), preventing the formation of catalytically inactive Pd(0) agglomerates.
Choi
Minkee
M
Center for Functional Nanomaterials, Department of Chemistry and Graduate School of Nanoscience and Nanotechnology (WCU), Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.
Lee
Dong-Hwan
DH
Na
Kyungsu
K
Yu
Byung-Woo
BW
Ryoo
Ryong
R
D000332:Aerobiosis; D002384:Catalysis; D010165:Palladium / Q000737:chemistry*; D016062:Porosity; D012964:Sodium / Q000737:chemistry*; D017641:Zeolites / Q000737:chemistry*
D017641:Zeolites; D010165:Palladium; D012964:Sodium