Supported N-heterocyclic carbene rhodium complexes as highly selective hydroformylation catalysts

被引：26

作者：

Gil, Wojciech ^{[1
]}

Boczon, Katarzyna ^{[1
]}

Trzeciak, Anna M. ^{[1
]}

Ziolkowski, Jozef J. ^{[1
]}

Garcia-Verdugo, Eduardo ^{[2
]}

Luis, Santiago V. ^{[2
]}

Sans, Victor ^{[2
]}

机构：

[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland

[2] Univ Jaume 1, CSIC, AU Adv Organ Mat, Dept Inorgan & Organ Chem, E-12071 Castellon de La Plana, Spain

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2009年 / 309卷 / 1-2期

关键词：

Rhodium; Hydroformylation; Immobilized catalyst; N-heterocyclic carbene; CROSS-COUPLING REACTIONS; IONIC LIQUIDS; HOMOGENEOUS CATALYSIS; EFFICIENT CATALYSTS; OLEFIN METATHESIS; HECK REACTION; REACTIVITY; FLOW; NHC; IMMOBILIZATION;

D O I：

10.1016/j.molcata.2009.05.007

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：

New supported rhodium(I) catalyst precursors were obtained in reaction of [Rh(OMe)(cod)](2) with polymeric monoliths containing methyl-imidazolium moieties and applied in 1-hexene hydroformylation at 10atm of CO/H-2. Under solventless conditions with a small amount of P(OPh)(3) as a modifying ligand, [P(OPh)(3)]/[Rh]=2, ca. 80% of aldehydes with a high n/iso ratio of ca. 6 was obtained in eight successive runs. When P(OCH2CF3)(3) was used instead of P(OPh)(3), n/iso ratios up to 49.8 were obtained, however, the systems were active only in two subsequent reactions. With PPh3 as a modifying ligand, the yield of aldehydes decreased to ca. 20% already in the third run and n/iso was ca. 3. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：131 / 136

页数：6

共 37 条

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