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van Slagmaat CAMR, Faber T, Chou KC, Schwalb Freire AJ, Hadavi D, Han P, Quaedflieg PJLM, Verzijl GKM, Alsters PL, De Wildeman SMA. Chemoselective formation of cyclo-aliphatic and cyclo-olefinic 1,3-diols via pressure hydrogenation of potentially biobased platform molecules using Knölker-type catalysts. Dalton Trans 2021; 50:10102-10112. [PMID: 34240727 DOI: 10.1039/d1dt01252e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrogenative conversions of the biobased platform molecules 4-hydroxycyclopent-2-enone and cyclopentane-1,3-dione to their corresponding 1,3-diols are established using a pre-activated Knölker-type iron catalyst. The catalyst exhibits a high selectivity for ketone reduction, and does not induce dehydration. Moreover, by using different substituents of the ligand, the cis-trans ratio of the products can be affected substantially. A decent compatibility of this catalytic system with various structurally related substrates is demonstrated.
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Affiliation(s)
- Christian A M R van Slagmaat
- Chemelot InSciTe, Gaetano Martinolaan 63-65, 6229 GS Maastricht, The Netherlands. and Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering (FSE), Maastricht University, Brightlands Chemelot Campus, 6167 RD, Geleen, The Netherlands
| | - Teresa Faber
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering (FSE), Maastricht University, Brightlands Chemelot Campus, 6167 RD, Geleen, The Netherlands
| | - Khi Chhay Chou
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering (FSE), Maastricht University, Brightlands Chemelot Campus, 6167 RD, Geleen, The Netherlands
| | - Alfonso J Schwalb Freire
- Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering (FSE), Maastricht University, Brightlands Chemelot Campus, 6167 RD, Geleen, The Netherlands
| | - Darya Hadavi
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Peiliang Han
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, 6229 ER Maastricht, The Netherlands
| | - Peter J L M Quaedflieg
- Chemelot InSciTe, Gaetano Martinolaan 63-65, 6229 GS Maastricht, The Netherlands. and InnoSyn B.V., Urmonderbaan 22, 6167 RD Geleen, The Netherlands
| | - Gerard K M Verzijl
- Independent Scientist, Nicolaasstraat 12, 5855 AR, Well, The Netherlands
| | - Paul L Alsters
- Chemelot InSciTe, Gaetano Martinolaan 63-65, 6229 GS Maastricht, The Netherlands. and InnoSyn B.V., Urmonderbaan 22, 6167 RD Geleen, The Netherlands
| | - Stefaan M A De Wildeman
- Chemelot InSciTe, Gaetano Martinolaan 63-65, 6229 GS Maastricht, The Netherlands. and Aachen-Maastricht Institute for Biobased Materials (AMIBM), Faculty of Science and Engineering (FSE), Maastricht University, Brightlands Chemelot Campus, 6167 RD, Geleen, The Netherlands
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Biradar AV, Biradar AA, Asefa T. Silica-dendrimer core-shell microspheres with encapsulated ultrasmall palladium nanoparticles: efficient and easily recyclable heterogeneous nanocatalysts. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:14408-14418. [PMID: 21951192 DOI: 10.1021/la203066d] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report the synthesis, characterization, and catalytic properties of novel monodisperse SiO(2)@Pd-PAMAM core-shell microspheres containing SiO(2) microsphere cores and PAMAM dendrimer-encapsulated Pd nanoparticle (Pd-PAMAM) shells. First, SiO(2) microspheres, which were prepared by the Stöber method, were functionalized with vinyl groups by grafting their surfaces with vinyltriethoxysilane (VTS). The vinyl groups were then converted into epoxides by using m-chloroperoxybenzoic acid. Upon treatment with amine-terminated G4 poly(amidoamine) (PAMAM) dendrimers, the SiO(2)-supported epoxides underwent ring-opening and gave SiO(2)@PAMAM core-shell microspheres. Pd nanoparticles within the cores of the SiO(2)-supported PAMAM dendrimers were synthesized by letting Pd(II) ions complex with the amine groups in the cores of the dendrimers and then reducing them into Pd(0) with NaBH(4). This produced the SiO(2)@Pd-PAMAM core-shell microspheres. The presence of the different functional groups on the materials was monitored by following the changes in FTIR spectra, elemental analyses, and weight losses on thermogravimetric traces. Transmission electron microscopy (TEM) images showed the presence of Pd nanoparticles with average size of 1.56 ± 0.67 nm on the surface of the monodisperse SiO(2)@Pd-PAMAM core-shell microspheres. The SiO(2)@Pd-PAMAM core-shell microspheres were successfully used as an easily recyclable catalyst for hydrogenation of various olefins, alkynes, keto, and nitro groups, giving ~100% conversion and high turnover numbers (TONs) under 10 bar H(2) pressure, at room temperature and in times ranging from 10 min to 3 h. In addition, the SiO(2)@Pd-PAMAM core-shell microspheres were proven to be recyclable catalysts up to five times with barely any leaching of palladium into the reaction mixture.
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Affiliation(s)
- Ankush V Biradar
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, USA
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Takai A, Doi Y, Yamauchi Y, Kuroda K. A Rational Repeating Template Method for Synthesis of 2 D Hexagonally Ordered Mesoporous Precious Metals. Chem Asian J 2010; 6:881-7. [DOI: 10.1002/asia.201000674] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Indexed: 11/07/2022]
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Deshmukh AA, Prashar AK, Kinage AK, Kumar R, Meijboom R. Ru(II) Phenanthroline Complex As Catalyst for Chemoselective Hydrogenation of Nitro-Aryls in a Green Process. Ind Eng Chem Res 2010. [DOI: 10.1021/ie1015969] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amit A. Deshmukh
- National Chemical Laboratory, Pashan Road, Pune 411008, India, Tata Chemicals Limited, Pune, India, and Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, Johannesburg, South Africa
| | - Atul K. Prashar
- National Chemical Laboratory, Pashan Road, Pune 411008, India, Tata Chemicals Limited, Pune, India, and Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, Johannesburg, South Africa
| | - Anil K. Kinage
- National Chemical Laboratory, Pashan Road, Pune 411008, India, Tata Chemicals Limited, Pune, India, and Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, Johannesburg, South Africa
| | - Rajiv Kumar
- National Chemical Laboratory, Pashan Road, Pune 411008, India, Tata Chemicals Limited, Pune, India, and Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, Johannesburg, South Africa
| | - Reinout Meijboom
- National Chemical Laboratory, Pashan Road, Pune 411008, India, Tata Chemicals Limited, Pune, India, and Centre for Synthesis and Catalysis, Department of Chemistry, University of Johannesburg, PO Box 524, Auckland Park 2006, Johannesburg, South Africa
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Deshmukh A, Ulâ
Islam R, Witcomb M, vanâ
Otterlo WA, Coville N. Catalytic Activity of Metal Nanoparticles Supported on Nitrogen-Doped Carbon Spheres. ChemCatChem 2010. [DOI: 10.1002/cctc.200900224] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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