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.
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.
Minkee
M
Choi
Dong-Hwan
DH
Lee
Kyungsu
K
Na
Byung-Woo
BW
Yu
Ryong
R
Ryoo
D000332:Aerobiosis; D002384:Catalysis; D010165:Palladium / Q000737:chemistry*; D016062:Porosity; D012964:Sodium / Q000737:chemistry*; D017641:Zeolites / Q000737:chemistry*
D017641:Zeolites; D010165:Palladium; D012964:Sodium