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.
Phase-transfer Tsuji—Trost allylation of CH-acids with the assistance of palladium complexes with bidentate PIII—N—PIII ligands
Vasil′ev,Aladzheva,Bykhovskaya
, p. 661 - 665 (2017/09/11)
The Tsuji—Trost allylation of CH acids, in particular, those of the YCH2CO2Et type (Y = CO2Et, C(O)Me, CN), with allylic acetates in the K2CO3—DMF system in the presence of palladium catalysts with ligands RN(PPh2)2 (R = Ph, Pri, c-C6H11) is accomplished.