Concerted Catalysis in Tight Spaces: Palladium-Catalyzed Allylation Reactions Accelerated by Accumulated Active Sites in Mesoporous Silica

被引：23

作者：

Motokura, Ken ^{[1
]}

Ikeda, Marika ^{[1
]}

Nambo, Masayuki ^{[1
]}

Chun, Wang-Jae ^{[2
]}

Nakajima, Kiyotaka ^{[3
]}

Tanaka, Shinji ^{[4
]}

机构：

[1] Tokyo Inst Technol, Sch Mat & Chem Technol, Dept Chem Sci & Engn, Midori Ku, 4259 Nagatsuta Cho, Yokohama, Kanagawa 2268502, Japan

[2] Int Christian Univ, Grad Sch Arts & Sci, Mitaka, Tokyo 1818585, Japan

[3] Hokkaido Univ, Inst Catalysis, Kita Ku, Kita 20,Nishi 10, Sapporo, Hokkaido 0010021, Japan

[4] Natl Inst Adv Ind Sci & Technol, Interdisciplinary Res Ctr Catalyt Chem, AIST, Cent 5,Higashi 1-1-1, Tsukuba, Ibaraki, Japan

来源：

CHEMCATCHEM | 2017年 / 9卷 / 15期

关键词：

allylation; concerted catalysis; mesoporous materials; palladium; supported catalysts; TSUJI-TROST REACTION; HETEROGENEOUS SYNERGISTIC CATALYSIS; ALLYLIC ALCOHOLS; COOPERATIVE CATALYSIS; BISPHOSPHINE COMPLEX; SUPPORTED CATALYSTS; AEROBIC OXIDATION; SUBSTITUTION; AMINE; SURFACE;

D O I：

10.1002/cctc.201700439

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：2924 / 2929

页数：6

共 41 条

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