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Hydrosoluble Complexes Bearing Tris(pyrazolyl)methane Sulfonate Ligand: Synthesis, Characterization and Catalytic Activity for Henry Reaction

Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Catalysts 2019, 9(7), 611; https://doi.org/10.3390/catal9070611
Received: 2 July 2019 / Revised: 15 July 2019 / Accepted: 16 July 2019 / Published: 18 July 2019
(This article belongs to the Special Issue Catalysts for Henry Reaction)
The catalytic activity of the water-soluble scorpionate coordination compounds [Cu(-NN’O-Tpms)2] (1), [Mn(Tpms)2] (2) and Li[FeCl2(-NN’N’’-Tpms)] (3) [Tpms = tris(pyrazolyl)-methane sulfonate, O3SC(pz)3], were studied towards the (Henry) reaction between benzaldehyde and nitromethane or nitroethane in aqueous medium to afford, respectively, 2-nitro-1-phenylethanol or 2-nitro-1-phenylpropanol, the latter in the syn and the anti diastereoisomeric forms. Complex 1 exhibited the highest activity under the optimum experimental conditions and was used to broaden the scope of the reaction to include several aromatic aldehydes achieving yields up to 94%. View Full-Text
Keywords: C-scorpionate; Henry reaction; aqueous medium; catalysis C-scorpionate; Henry reaction; aqueous medium; catalysis
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MDPI and ACS Style

Mahmoud, A.G.; Martins, L.M.D.R.S.; Silva, M.F.C.G.d.; Pombeiro, A.J.L. Hydrosoluble Complexes Bearing Tris(pyrazolyl)methane Sulfonate Ligand: Synthesis, Characterization and Catalytic Activity for Henry Reaction. Catalysts 2019, 9, 611. https://doi.org/10.3390/catal9070611

AMA Style

Mahmoud AG, Martins LMDRS, Silva MFCGd, Pombeiro AJL. Hydrosoluble Complexes Bearing Tris(pyrazolyl)methane Sulfonate Ligand: Synthesis, Characterization and Catalytic Activity for Henry Reaction. Catalysts. 2019; 9(7):611. https://doi.org/10.3390/catal9070611

Chicago/Turabian Style

Mahmoud, Abdallah G.; Martins, Luísa M. D. R. S.; Silva, M. Fátima C. Guedes da; Pombeiro, Armando J. L. 2019. "Hydrosoluble Complexes Bearing Tris(pyrazolyl)methane Sulfonate Ligand: Synthesis, Characterization and Catalytic Activity for Henry Reaction" Catalysts 9, no. 7: 611. https://doi.org/10.3390/catal9070611

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