RhCl(TPPTS)3 encapsulated into the hexagonal mesoporous silica as an efficient heterogeneous catalyst for hydroformylation of vinyl esters

被引：21

作者：

Sudheesh, N. ^{[1
]}

Chaturvedi, Amit K. ^{[1
]}

Shukla, Ram S. ^{[1
]}

机构：

[1] CSIR, Cent Salt & Marine Chem Res Inst, Discipline Inorgan Mat & Catalysis, Bhavnagar 364021, Gujarat, India

来源：

APPLIED CATALYSIS A-GENERAL | 2011年 / 409卷

关键词：

Hexagonal mesoporous silica; Hydroformylation; Vinyl esters; Recycling; Heterogeneous catalyst; ASYMMETRIC HYDROFORMYLATION; MOLECULAR-SIEVES; RHODIUM; ACETATE; COMPLEXES; OLEFINS; LIGANDS; ROUTE;

D O I：

10.1016/j.apcata.2011.09.028

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：

RhCl(TPFTS)(3) (TPFTS = m-trisulphonato triphenyl phosphine) was in situ encapsulated into the mesopores of hexagonal mesoporous silica (HMS) by in situ method. The catalyst was characterized by P-XRD, P-31-CPMAS NMR, FT-IR, N-2 adsorption, TGA, TEM and ICP techniques. These characterization confirmed the encapsulation and heterogenization of RhCl(TPPTS)(3). The synthesized heterogeneous catalyst evaluated for hydroformylation of vinyl esters gave 100% conversion and high selectivity to iso-aldehyde. Vinyl acetate was subjected as a representative vinyl ester for detailed investigations. The performance of the catalyst in terms of conversion and selectivity depended on the studied parameters: amount of the catalyst, substrate, partial pressure of CO and H-2, and temperature. Recyclability aspects of the heterogenized catalyst are investigated. (C) 2011 Elsevier B.V. All rights

引用

页码：99 / 105

页数：7

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