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Wang Z, Ma N, Lu X, Liu M, Liu T, Liu Q, Solan GA, Sun WH. Robust and efficient transfer hydrogenation of carbonyl compounds catalyzed by NN-Mn(I) complexes. Dalton Trans 2023; 52:10574-10583. [PMID: 37458677 DOI: 10.1039/d3dt02022c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
A series of manganese(I) carbonyl complexes bearing structurally related NN- and NNN-chelating ligands have been synthesized and assessed as catalysts for transfer hydrogenation (TH). Notably, the NN-systems based on N-R functionalized 5,6,7,8-tetrahydroquinoline-8-amines, proved the most effective in the manganese-promoted conversion of acetophenone to 1-phenylethanol. In particular, the N-isopropyl derivative, Mn1, when conducted in combination with t-BuONa, was the standout performer mediating not only the reduction of acetophenone but also a range of carbonyl substrates including (hetero)aromatic-, aliphatic- and cycloalkyl-containing ketones and aldehydes with especially high values of TON (up to 17 200; TOF of 3550 h-1). These findings, obtained through a systematic variation of the N-R group of the NN ligand, are consistent with an outer-sphere mechanism for the hydrogen transfer. As a more general point, this Mn-based catalytic TH protocol offers an attractive and sustainable alternative for producing alcoholic products from carbonyl substrates.
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Affiliation(s)
- Zheng Wang
- College of Science, Hebei Agricultural University, Baoding 071001, China
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, China.
| | - Ning Ma
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Xiaochi Lu
- College of Science, Hebei Agricultural University, Baoding 071001, China
| | - Ming Liu
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Tian Liu
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | - Qingbin Liu
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050024, China.
| | - Gregory A Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
- Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK.
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
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León F, Comas-Vives A, Álvarez E, Pizzano A. A combined experimental and computational study to decipher complexity in the asymmetric hydrogenation of imines with Ru catalysts bearing atropisomerizable ligands. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02390f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
RuCl2(P–OP)(N–N) complexes containing an atropisomerizable phosphine–phosphite and a chiral diamine are effective catalyst precursors for the asymmetric hydrogenation of N-aryl imines following an outer-sphere mechanism.
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Affiliation(s)
- Félix León
- Instituto de Investigaciones Químicas and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- 41092 Sevilla
- Spain
| | - Aleix Comas-Vives
- Department of Chemistry
- Universitat Autònoma de Barcelona
- 08193 Cerdanyola del Vallès
- Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones Químicas and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- 41092 Sevilla
- Spain
| | - Antonio Pizzano
- Instituto de Investigaciones Químicas and Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- CSIC and Universidad de Sevilla
- 41092 Sevilla
- Spain
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Facchetti G, Christodoulou MS, Mendoza LB, Cusinato F, Dalla Via L, Rimoldi I. Biological Properties of New Chiral 2-Methyl-5,6,7,8-tetrahydroquinolin-8-amine-based Compounds. Molecules 2020; 25:molecules25235561. [PMID: 33260896 PMCID: PMC7729733 DOI: 10.3390/molecules25235561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/25/2020] [Accepted: 11/25/2020] [Indexed: 11/16/2022] Open
Abstract
The synthesis of a small library of 8-substituted 2-methyl-5,6,7,8-tetrahydroquinoline derivatives is presented. All the compounds were tested for their antiproliferative activity in non-cancer human dermal microvascular endothelial cells (HMEC-1) and cancer cells: human T-lymphocyte cells (CEM), human cervix carcinoma cells (HeLa), human dermal microvascular endothelial cells (HMEC-1), colorectal adenocarcinoma (HT-29), ovarian carcinoma (A2780), and biphasic mesothelioma (MSTO-211H). Compounds 3a, 5a, and 2b, showing significant IC50 values against the whole panel of the selected cells, were further synthesized and tested as pure enantiomers in order to shed light on how their stereochemistry might impact on the related biological effect. The most active compound (R)-5a was able to affect cell cycle phases and to induce mitochondrial membrane depolarization and cellular ROS production in A2780 cells.
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Affiliation(s)
- Giorgio Facchetti
- DISFARM, Sezione di Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano via Venezian, 21, 20133 Milano, Italy; (M.S.C.); (I.R.)
- Correspondence: (G.F.); (L.D.V.)
| | - Michael S. Christodoulou
- DISFARM, Sezione di Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano via Venezian, 21, 20133 Milano, Italy; (M.S.C.); (I.R.)
| | - Lina Barragán Mendoza
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, via F. Marzolo, 5, 35131 Padova, Italy; (L.B.M.); (F.C.)
- Facultad de Ciencias Químicas, Universidad de Colima, Carr. Colima-Coquimatlán km 9, Coquimatlán 28400, Colima, Mexico
| | - Federico Cusinato
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, via F. Marzolo, 5, 35131 Padova, Italy; (L.B.M.); (F.C.)
| | - Lisa Dalla Via
- Dipartimento di Scienze del Farmaco, Università degli Studi di Padova, via F. Marzolo, 5, 35131 Padova, Italy; (L.B.M.); (F.C.)
- Correspondence: (G.F.); (L.D.V.)
| | - Isabella Rimoldi
- DISFARM, Sezione di Chimica Generale e Organica “A. Marchesini”, Università degli Studi di Milano via Venezian, 21, 20133 Milano, Italy; (M.S.C.); (I.R.)
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Cruchter T, Larionov VA. Asymmetric catalysis with octahedral stereogenic-at-metal complexes featuring chiral ligands. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.08.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Gandolfi R, Facchetti G, Christodoulou MS, Fusè M, Meneghetti F, Rimoldi I. Cascade Reaction by Chemo- and Biocatalytic Approaches to Obtain Chiral Hydroxy Ketones and anti 1,3-Diols. ChemistryOpen 2018; 7:393-400. [PMID: 29872614 PMCID: PMC5974551 DOI: 10.1002/open.201800056] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Indexed: 12/02/2022] Open
Abstract
A chemo- and biocatalytic cascade approach was applied for the stereoselective synthesis of hydroxy ketones and the corresponding 1,3-diols. A new class of tridentate N,N,O ligands was used with copper(II) complexes for the asymmetric β-borylation of α,β-unsaturated compounds. The complex containing ligand L5 emerged as the best performer, and it gave the organoborane derivatives with good ee values. The corresponding keto-alcohol compounds were then bioreduced by yeasts. The biotransformation set up with Rhodotorula rubra allowed (R)-keto-alcohols and (S,S)-diols to be obtained with up to 99 % ee and up to 99 % de in favor of the anti enantiomers.
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Affiliation(s)
- Raffaella Gandolfi
- Dipartimento di Scienze FarmaceuticheUniversità degli Studi di MilanoVia Venezian 2120133MilanoItalia
| | - Giorgio Facchetti
- Dipartimento di Scienze FarmaceuticheUniversità degli Studi di MilanoVia Venezian 2120133MilanoItalia
| | - Michael S. Christodoulou
- Dipartimento di Scienze FarmaceuticheUniversità degli Studi di MilanoVia Venezian 2120133MilanoItalia
| | - Marco Fusè
- Scuola Normale SuperiorePiazza dei Cavalieri 756126PisaItalia
| | - Fiorella Meneghetti
- Dipartimento di Scienze FarmaceuticheUniversità degli Studi di MilanoVia Venezian 2120133MilanoItalia
| | - Isabella Rimoldi
- Dipartimento di Scienze FarmaceuticheUniversità degli Studi di MilanoVia Venezian 2120133MilanoItalia
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