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Simple approach for the regioselective synthesis of a bis (β-aminoalcohol) derived from polyoxyethylene: first report of fast ring-opening of polyoxyethylene diglycidyl ethers with sodium amide. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3323-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Gorla L, Martí-Centelles V, Freimuth L, Altava B, Burguete MI, Luis SV. Cu(2+), Zn(2+), and Ni(2+) Complexes of C2-Symmetric Pseudopeptides with an Aromatic Central Spacer. Inorg Chem 2016; 55:7617-29. [PMID: 27438410 DOI: 10.1021/acs.inorgchem.6b01066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Two new tetradentate C2-symmetric pseudopeptidic ligands derived from Val and Phe containing two amino and two amido groups and a central o-substituted aromatic spacer have been prepared. Their complexes with Cu(2+), Zn(2+), and Ni(2+) have been studied by potentiometry, UV-vis spectrophotometry, FT-IR, and ESI-MS. The presence of the aromatic spacer provides Cu(2+) complexes with stability constants several orders of magnitude higher than those observed for related ligands containing aliphatic central spacers. Besides, the formation of [MH-2L] complex species is favored. Crystal structures for the corresponding Cu(2+) and Ni(2+) have been obtained, revealing the metal atom in an essentially square-planar geometry, although, in several instances, the oxygen atom of an amide carbonyl of a second complex species can act as a fifth coordination site. In the case of Zn(2+), the only crystal structure obtained displays a square-pyramidal arrangement of the metal center. Finally, preliminary experiments show the catalytic activity of some of these complexes, in particular, Zn(2+) complexes, for epoxide ring-opening with using aniline as the nucleophile in a ligand accelerated process.
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Affiliation(s)
- Lingaraju Gorla
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I , Av. de Vicent Sos Baynat, s/n, 12071, Castellón, Spain
| | - Vicente Martí-Centelles
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I , Av. de Vicent Sos Baynat, s/n, 12071, Castellón, Spain
| | - Lena Freimuth
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I , Av. de Vicent Sos Baynat, s/n, 12071, Castellón, Spain
| | - Belén Altava
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I , Av. de Vicent Sos Baynat, s/n, 12071, Castellón, Spain
| | - M Isabel Burguete
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I , Av. de Vicent Sos Baynat, s/n, 12071, Castellón, Spain
| | - Santiago V Luis
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I , Av. de Vicent Sos Baynat, s/n, 12071, Castellón, Spain
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Acocella MR, D'Urso L, Maggio M, Guerra G. Green Regio- and Enantioselective Aminolysis Catalyzed by Graphite and Graphene Oxide under Solvent-Free Conditions. ChemCatChem 2016. [DOI: 10.1002/cctc.201600241] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Maria Rosaria Acocella
- Department of Chemistry and Biology; University of Salerno; Via Giovanni Paolo II 132 Fisciano SA Italy
| | - Luciana D'Urso
- Department of Chemistry and Biology; University of Salerno; Via Giovanni Paolo II 132 Fisciano SA Italy
| | - Mario Maggio
- Department of Chemistry and Biology; University of Salerno; Via Giovanni Paolo II 132 Fisciano SA Italy
| | - Gaetano Guerra
- Department of Chemistry and Biology; University of Salerno; Via Giovanni Paolo II 132 Fisciano SA Italy
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Saddique FA, Zahoor AF, Faiz S, Naqvi SAR, Usman M, Ahmad M. Recent trends in ring opening of epoxides by amines as nucleophiles. SYNTHETIC COMMUN 2016. [DOI: 10.1080/00397911.2016.1170148] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Ameer Fawad Zahoor
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | - Sadia Faiz
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | | | - Muhammad Usman
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
| | - Matloob Ahmad
- Institute of Chemistry, Government College University, Faisalabad, Pakistan
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Singh AP, Kumar G, Gupta R. Two-dimensional {Co3+–Zn2+} and {Co3+–Cd2+} networks and their applications in heterogeneous and solvent-free ring opening reactions. Dalton Trans 2011; 40:12454-61. [DOI: 10.1039/c1dt10602c] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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