3508-77-8Relevant articles and documents
Concerted Catalysis in Tight Spaces: Palladium-Catalyzed Allylation Reactions Accelerated by Accumulated Active Sites in Mesoporous Silica
Motokura, Ken,Ikeda, Marika,Nambo, Masayuki,Chun, Wang-Jae,Nakajima, Kiyotaka,Tanaka, Shinji
, p. 2924 - 2929 (2017)
The surface of mesoporous silica was modified with a Pd–bisphosphine complex and/or a tertiary amine group for concerted acceleration of allylation reactions. Mesoporous-silica-supported catalysts with a 1.6 nm pore diameter showed higher performance than nonporous or larger mesoporous silica-supported catalysts owing to the accumulation of active sites into a confined space. For the case in which allyl alcohol was used in the reaction, the presence of a silanol group on the surface was quite effective: the turnover number of Pd was nine times greater than that of the homogeneous Pd complex.
Heterogeneous synergistic catalysis by a palladium complex and an amine on a silica surface for acceleration of the Tsuji-Trost reaction
Noda, Hiroto,Motokura, Ken,Miyaji, Akimitsu,Baba, Toshihide
, p. 8017 - 8020 (2012)
The cooperative surface-catalysis strategy of a Bronsted acid and an organic base can be extended to a metal complex and organic base pair. A silica-supported diaminopalladium complex and a tertiary amine were prepared and characterized. The Pd-catalyzed
Accumulation of Active Species in Silica Mesopore: Effect of the Pore Size and Free Base Additives on Pd-catalyzed Allylation using Allylic Alcohol
Chun, Wang-Jae,Kawashima, Sae,Manaka, Yuichi,Motokura, Ken,Nambo, Masayuki
, (2020)
A mesoporous silica-supported Pd complex was prepared using various types of porous silica supports (pore size: 16–31 ?). The effects of the pore size and base additive properties on the catalytic allylation were investigated. The activity of the Pd-catal
Decarboxylative Annulation of α-Amino Acids with β-Ketoaldehydes
Paul, Anirudra,Thimmegowda,Galani Cruz, Thiago,Seidel, Daniel
supporting information, p. 602 - 604 (2018/02/09)
Indolizidine and quinolizidine derivatives are readily assembled from l-proline or (±)-pipecolic acid and β-ketoaldehydes via a decarboxylative annulation process. These reactions are promoted by acetic acid and involve azomethine ylides as reactive intermediates.
Highly efficient Tsuji-Trost allylation in water catalyzed by Pd-nanoparticles
Llevot,Monney,Sehlinger,Behrens,Meier
supporting information, p. 5175 - 5178 (2017/07/12)
Palladium nanoparticles stabilized by poly(vinylpyrrolidone) catalyze Tsuji-Trost allylations in water with very high turnover numbers. The di-allylation of methylene active compounds and the allylation of bio-based phenols was performed in high yield. The allylation of lignin showed a high selectivity towards the phenolic OH groups.