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High Catalytic Activity of Palladium(II)‐Exchanged Mesoporous Sodalite and NaA Zeolite for Bulky Aryl Coupling Reactions: Reusability under Aerobic Conditions
Author(s) -
Choi Minkee,
Lee DongHwan,
Na Kyungsu,
Yu ByungWoo,
Ryoo Ryong
Publication year - 2009
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200806334
Subject(s) - sodalite , reusability , palladium , mesoporous material , catalysis , zeolite , aryl , molecular sieve , coupling (piping) , chemistry , materials science , organic chemistry , computer science , operating system , metallurgy , alkyl , software
Exchange for the better : Mesoporous sodalite and NaA zeolite exchanged with Pd 2+ exhibit remarkably high activity and reusability in CC 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.