1
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Booth R, Whitwood AC, Duhme-Klair AK. Effect of Ligand Substituents on Spectroscopic and Catalytic Properties of Water-Compatible Cp*Ir-(pyridinylmethyl)sulfonamide-Based Transfer Hydrogenation Catalysts. Inorg Chem 2024; 63:3815-3823. [PMID: 38343274 PMCID: PMC10900292 DOI: 10.1021/acs.inorgchem.3c04040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/23/2024] [Accepted: 01/30/2024] [Indexed: 02/27/2024]
Abstract
Transition-metal-based hydrogenation catalysts have applications ranging from high-value chemical synthesis to medicinal chemistry. A series of (pyridinylmethyl)sulfonamide ligands substituted with electron-withdrawing and -donating groups were synthesized to study the influence of the electronic contribution of the bidentate ligand in Cp*Ir piano-stool complexes. A variable-temperature NMR investigation revealed a strong correlation between the electron-donating ability of the substituent and the rate of stereoinversion of the complexes. This correlation was partially reflected in the catalytic activity of the corresponding catalysts. Complexes with electron-withdrawing substituents followed the trend observed in the variable-temperature NMR study, thereby confirming the rate-determining step to be donation of the hydride ligand. Strongly electron-donating groups, on the other hand, caused a change in the rate-determining step in the formation of the iridium-hydride species. These results demonstrate that the activity of these catalysts can be tuned systematically via changes in the electronic contribution of the bidentate (pyridinylmethyl)sulfonamide ligands.
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2
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Igareta NV, Tachibana R, Spiess DC, Peterson RL, Ward TR. Spiers Memorial Lecture: Shielding the active site: a streptavidin superoxide-dismutase chimera as a host protein for asymmetric transfer hydrogenation. Faraday Discuss 2023; 244:9-20. [PMID: 36924204 PMCID: PMC10416703 DOI: 10.1039/d3fd00034f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 02/09/2023] [Indexed: 03/17/2023]
Abstract
By anchoring a metal cofactor within a host protein, so-called artificial metalloenzymes can be generated. Such hybrid catalysts combine the versatility of transition metals in catalyzing new-to-nature reactions with the power of genetic-engineering to evolve proteins. With the aim of gaining better control over second coordination-sphere interactions between a streptavidin host-protein (Sav) and a biotinylated cofactor, we engineered a hydrophobic dimerization domain, borrowed from superoxide dismutase C (SOD), on Sav's biotin-binding vestibule. The influence of the SOD dimerization domain (DD) on the performance of an asymmetric transfer hydrogenase (ATHase) resulting from anchoring a biotinylated Cp*Ir-cofactor - [Cp*Ir(biot-p-L)Cl] (1-Cl) - within Sav-SOD is reported herein. We show that, depending on the nature of the residue at position Sav S112, the introduction of the SOD DD on the biotin-binding vestibule leads to an inversion of configuration of the reduction product, as well as a fivefold increase in catalytic efficiency. The findings are rationalized by QM/MM calculations, combined with X-ray crystallography.
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Affiliation(s)
- Nico V Igareta
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel, CH-4058, Switzerland.
- National Center of Competence in Research (NCCR) "Molecular Systems Engineering", 4058 Basel, Switzerland.
| | - Ryo Tachibana
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel, CH-4058, Switzerland.
| | - Daniel C Spiess
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel, CH-4058, Switzerland.
| | - Ryan L Peterson
- National Center of Competence in Research (NCCR) "Molecular Systems Engineering", 4058 Basel, Switzerland.
| | - Thomas R Ward
- Department of Chemistry, University of Basel, Mattenstrasse 24a, BPR 1096, Basel, CH-4058, Switzerland.
- National Center of Competence in Research (NCCR) "Molecular Systems Engineering", 4058 Basel, Switzerland.
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3
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Facchetti G, Neva F, Coffetti G, Rimoldi I. Chiral 8-Amino-5,6,7,8-tetrahydroquinoline Derivatives in Metal Catalysts for the Asymmetric Transfer Hydrogenation of 1-Aryl Substituted-3,4-dihydroisoquinolines as Alkaloids Precursors. Molecules 2023; 28:molecules28041907. [PMID: 36838894 PMCID: PMC9962878 DOI: 10.3390/molecules28041907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023] Open
Abstract
Chiral diamines based on an 8-amino-5,6,7,8-tetrahydroquinoline backbone, known as CAMPY (L1), or the 2-methyl substituted analogue Me-CAMPY (L2) were employed as novel ligands in Cp* metal complexes for the ATH of a series of substituted dihydroisoquinolines (DHIQs), known for being key intermediates in the synthesis of biologically active alkaloids. Different metal-based complexes were evaluated in this kind of reaction, rhodium catalysts, C3 and C4, proving most effective both in terms of reactivity and enantioselectivity. Although modest enantiomeric excess values were obtained (up to 69% ee in the case of substrate I), a satisfactory quantitative conversion was successfully fulfilled even in the case of the most demanding hindered substrates when La(OTf)3 was used as beneficial additive, opening up the possibility for a rational design of novel chiral catalysts alternatives to the Noyori-Ikariya (arene)Ru(II)/TsDPEN catalyst.
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4
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Syntheses and Applications of Symmetrical Dinuclear Half-Sandwich Ruthenium(II)–Dipicolinamide Complexes as Catalysts in the Transfer Hydrogenation of Ketones. INORGANICS 2022. [DOI: 10.3390/inorganics10110190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The treatment of [Ru(η6-p-cymene)Cl2]2 with N,N’-(1,2-phenylene)dipicolinamide (H2L1) afforded the double salt complex [{Ru(η6-p-cymene)2-µ-Cl}L1][Ru(η6-p-cymene)Cl3], (Ru1) in moderate yields. Separately, the reactions of ligands (H2L1), N,N’-(4,5 dimethyl-1,2-phenylene)dipicolinamide (H2L2), and N,N’-(4-methoxy-1,2-phenylene)dipicolinamide (H2L3) with the [Ru(η6-p-cymene)Cl2]2 in the presence of KPF6 afforded the respective dinuclear half-sandwich Ru(II) complexes [{(Ru(η6-p-cymene)2--µ-Cl}L1][PF6] (Ru2), [{(Ru(η6-p-cymene)2-µ-Cl}L2][PF6] (Ru3), and [{(Ru(η6-p-cymene)2-µ-Cl}L3][PF6] (Ru4). NMR and FT-IR spectroscopies, ESI-MS spectrometry, and elemental analyses were used to establish the molecular structures of the new dinuclear ruthenium(II) complexes. Single crystal X-ray crystallography was used to confirm the piano-stool geometry of the dinuclear complexes Ru1 and Ru4, as containing N^N chelated ligand and bridging chlorido ligands in each Ru(II) atom. The complexes (Ru1-Ru4) showed good catalytic activities at low catalyst concentrations of 0.005 mol% in the transfer hydrogenation of a wide range of ketone substrates.
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5
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Khamis N, Clarkson GJ, Wills M. Heterocycle-containing Noyori-Ikariya catalysts for asymmetric transfer hydrogenation of ketones. Dalton Trans 2022; 51:13462-13469. [PMID: 35994090 DOI: 10.1039/d2dt02411j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of a range of N-(heterocyclesulfonyl)-functionalised Noyori-Ikariya catalysts is described. The complexes were prepared through a short sequence from C2-symmetric 1,2-diphenylethylene-1,2-diamine (DPEN) and were characterised by a range of methods including X-ray crystallography. The complexes were active catalysts for the asymmetric transfer hydrogenation (ATH) of a range of acetophenone derivatives, giving products of high ee in most cases, with notably good results for ortho-substituted acetophenones.
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Affiliation(s)
- Noha Khamis
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK. .,Department of Chemistry, Faculty of science, University of Alexandria, Alexandria, Egypt
| | - Guy J Clarkson
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK.
| | - Martin Wills
- Department of Chemistry, The University of Warwick, Coventry, CV4 7AL, UK.
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6
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Tang Y, Liu K, Wu Y, Zhou S, Cheng T, Liu G. Single‐Operation Decarboxylative Mannich Reaction/Asymmetric Transfer Hydrogenation Cascade Process Directly Accesses 1,3‐Distereocentered β‐Sulfonamido Alcohols. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yong Tang
- Shanghai Normal University - Xuhui Campus CHINA
| | - Kaihong Liu
- Shanghai Normal University - Xuhui Campus CHINA
| | - Ye Wu
- Shanghai Normal University - Xuhui Campus CHINA
| | - Siyu Zhou
- Shanghai Normal University - Xuhui Campus CHINA
| | | | - Guohua Liu
- Shanghai Normal University - Xuhui Campus CHINA
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7
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Asymmetric transfer hydrogenation of heterocycle-containing acetophenone derivatives using N-functionalised [(benzene)Ru(II)(TsDPEN)] complexes. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132562] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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8
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Yang D, Wang C, Wang Y, Liu G, Cheng T, Liu R. One-pot enantioselective construction of 3,4-dihydro-2H-1,4-oxazines over Ru/Au relay catalysis and its mechanistic serendipity. Org Chem Front 2022. [DOI: 10.1039/d1qo01482j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-pot enantioselective construction of 3,4-dihydro-2H-1,4-oxazines have been developed through the transfer hydrogenation/cyclization enantio-relay process using Ru and Au bimetallic catalysts.
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Affiliation(s)
- Dongfeng Yang
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Key Laboratory of Resource Chemistry of Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
| | - Chengyi Wang
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Key Laboratory of Resource Chemistry of Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
| | - Yu Wang
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Key Laboratory of Resource Chemistry of Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
| | - Guohua Liu
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Key Laboratory of Resource Chemistry of Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
| | - Tanyu Cheng
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Key Laboratory of Resource Chemistry of Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
| | - Rui Liu
- Joint Laboratory of International Cooperation of Resource Chemistry of Ministry of Education, Key Laboratory of Resource Chemistry of Ministry of Education, and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai, China
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9
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Hall AMR, Berry DBG, Crossley JN, Codina A, Clegg I, Lowe JP, Buchard A, Hintermair U. Does the Configuration at the Metal Matter in Noyori-Ikariya Type Asymmetric Transfer Hydrogenation Catalysts? ACS Catal 2021; 11:13649-13659. [PMID: 34777911 PMCID: PMC8576814 DOI: 10.1021/acscatal.1c03636] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/07/2021] [Indexed: 12/04/2022]
Abstract
![]()
Noyori–Ikariya
type [(arene)RuCl(TsDPEN)] (TsDPEN, sulfonated
diphenyl ethylenediamine) complexes are widely used C=O and
C=N reduction catalysts that produce chiral alcohols and amines
via a key ruthenium–hydride intermediate that determines the
stereochemistry of the product. Whereas many details about the interactions
of the pro-chiral substrate with the hydride complex and the nature
of the hydrogen transfer from the latter to the former have been investigated
over the past 25 years, the role of the stereochemical configuration
at the stereogenic ruthenium center in the catalysis has not been
elucidated so far. Using operando FlowNMR spectroscopy
and nuclear Overhauser effect spectroscopy, we show the existence
of two diastereomeric hydride complexes under reaction conditions,
assign their absolute configurations in solution, and monitor their
interconversion during transfer hydrogenation catalysis. Configurational
analysis and multifunctional density functional theory (DFT) calculations
show the λ-(R,R)SRu configured [(mesitylene)RuH(TsDPEN)] complex to be
both thermodynamically and kinetically favored over its λ-(R,R)RRu isomer
with the opposite configuration at the metal. Computational analysis
of both diastereomeric catalytic manifolds show the major λ-(R,R)SRu configured
[(mesitylene)RuH(TsDPEN)] complex to dominate asymmetric ketone reduction
catalysis with the minor λ-(R,R)RRu [(mesitylene)RuH(TsDPEN)] stereoisomer
being both less active and less enantioselective. These findings also
hold true for a tethered catalyst derivative with a propyl linker
between the arene and TsDPEN ligands and thus show enantioselective
transfer hydrogenation catalysis with Noyori–Ikariya complexes
to proceed via a lock-and-key mechanism.
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Affiliation(s)
- Andrew M. R. Hall
- Centre for Sustainable & Circular Technologies, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
- Dynamic Reaction Monitoring Facility, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Daniel B. G. Berry
- Dynamic Reaction Monitoring Facility, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Jaime N. Crossley
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Anna Codina
- Bruker UK Ltd., Banner Lane, Coventry CV4 9GH, United Kingdom
| | - Ian Clegg
- Bruker UK Ltd., Banner Lane, Coventry CV4 9GH, United Kingdom
| | - John P. Lowe
- Dynamic Reaction Monitoring Facility, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Antoine Buchard
- Centre for Sustainable & Circular Technologies, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Ulrich Hintermair
- Centre for Sustainable & Circular Technologies, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
- Dynamic Reaction Monitoring Facility, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
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10
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Zhao Z, Wang C, Chen Q, Wang Y, Xiao R, Tan C, Liu G. Phase Separation‐Promoted Redox Deracemization of Secondary Alcohols over a Supported Dual Catalysts System. ChemCatChem 2021. [DOI: 10.1002/cctc.202100738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhitong Zhao
- International Joint Laboratory on Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering Shanghai Normal University Shanghai 200234 P. R. China
| | - Chengyi Wang
- International Joint Laboratory on Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering Shanghai Normal University Shanghai 200234 P. R. China
| | - Qipeng Chen
- International Joint Laboratory on Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering Shanghai Normal University Shanghai 200234 P. R. China
| | - Yu Wang
- International Joint Laboratory on Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering Shanghai Normal University Shanghai 200234 P. R. China
| | - Rui Xiao
- International Joint Laboratory on Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering Shanghai Normal University Shanghai 200234 P. R. China
| | - Chunxia Tan
- International Joint Laboratory on Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering Shanghai Normal University Shanghai 200234 P. R. China
| | - Guohua Liu
- International Joint Laboratory on Resource Chemistry of Ministry of Education Shanghai Engineering Research Center of Green Energy Chemical Engineering Shanghai Normal University Shanghai 200234 P. R. China
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11
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Yu Q, Lu C, Zhao B. Enantioselective Hydroboration of Ketones Catalyzed by Rare-Earth-Metal Complexes Supported with Phenoxy-Functionalized TsDPEN Ligands. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00272] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Qishun Yu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Organic Synthesis of Jiangsu Province, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Chengrong Lu
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Organic Synthesis of Jiangsu Province, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
| | - Bei Zhao
- College of Chemistry, Chemical Engineering and Materials Science, Key Laboratory of Organic Synthesis of Jiangsu Province, Dushu Lake Campus, Soochow University, Suzhou 215123, People’s Republic of China
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12
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Bolitho EM, Coverdale JPC, Bridgewater HE, Clarkson GJ, Quinn PD, Sanchez‐Cano C, Sadler PJ. Tracking Reactions of Asymmetric Organo-Osmium Transfer Hydrogenation Catalysts in Cancer Cells. Angew Chem Int Ed Engl 2021; 60:6462-6472. [PMID: 33590607 PMCID: PMC7985874 DOI: 10.1002/anie.202016456] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Revised: 01/16/2020] [Indexed: 12/21/2022]
Abstract
Most metallodrugs are prodrugs that can undergo ligand exchange and redox reactions in biological media. Here we have investigated the cellular stability of the anticancer complex [OsII [(η6 -p-cymene)(RR/SS-MePh-DPEN)] [1] (MePh-DPEN=tosyl-diphenylethylenediamine) which catalyses the enantioselective reduction of pyruvate to lactate in cells. The introduction of a bromide tag at an unreactive site on a phenyl substituent of Ph-DPEN allowed us to probe the fate of this ligand and Os in human cancer cells by a combination of X-ray fluorescence (XRF) elemental mapping and inductively coupled plasma-mass spectrometry (ICP-MS). The BrPh-DPEN ligand is readily displaced by reaction with endogenous thiols and translocated to the nucleus, whereas the Os fragment is exported from the cells. These data explain why the efficiency of catalysis is low, and suggests that it could be optimised by developing thiol resistant analogues. Moreover, this work also provides a new way for the delivery of ligands which are inactive when administered on their own.
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Affiliation(s)
- Elizabeth M. Bolitho
- Department of ChemistryUniversity of WarwickCoventryCV4 7ALUK
- I14 Imaging BeamlineDiamond Light SourceOxfordOX11 0DEUK
| | | | | | - Guy J. Clarkson
- Department of ChemistryUniversity of WarwickCoventryCV4 7ALUK
| | - Paul D. Quinn
- I14 Imaging BeamlineDiamond Light SourceOxfordOX11 0DEUK
| | - Carlos Sanchez‐Cano
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE)Basque Research and Technology Alliance (BRTA)Paseo de Miramon 18220014San SebastiánSpain
| | - Peter J. Sadler
- Department of ChemistryUniversity of WarwickCoventryCV4 7ALUK
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13
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Synthesis and structural elucidation of (pyridyl)imine Fe(II) complexes and their applications as catalysts in transfer hydrogenation of ketones. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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14
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Bolitho EM, Coverdale JPC, Bridgewater HE, Clarkson GJ, Quinn PD, Sanchez‐Cano C, Sadler PJ. Tracking Reactions of Asymmetric Organo‐Osmium Transfer Hydrogenation Catalysts in Cancer Cells. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016456] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Elizabeth M. Bolitho
- Department of Chemistry University of Warwick Coventry CV4 7AL UK
- I14 Imaging Beamline Diamond Light Source Oxford OX11 0DE UK
| | | | | | - Guy J. Clarkson
- Department of Chemistry University of Warwick Coventry CV4 7AL UK
| | - Paul D. Quinn
- I14 Imaging Beamline Diamond Light Source Oxford OX11 0DE UK
| | - Carlos Sanchez‐Cano
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE) Basque Research and Technology Alliance (BRTA) Paseo de Miramon 182 20014 San Sebastián Spain
| | - Peter J. Sadler
- Department of Chemistry University of Warwick Coventry CV4 7AL UK
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15
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Banerjee S, Sadler PJ. Transfer hydrogenation catalysis in cells. RSC Chem Biol 2021; 2:12-29. [PMID: 34458774 PMCID: PMC8341873 DOI: 10.1039/d0cb00150c] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 10/10/2020] [Indexed: 12/13/2022] Open
Abstract
Hydrogenation reactions in biology are usually carried out by enzymes with nicotinamide adenine dinucleotide (NAD(P)H) or flavin mononucleotide (FAMH2)/flavinadenine dinucleotide (FADH2) as cofactors and hydride sources. Industrial scale chemical transfer hydrogenation uses small molecules such as formic acid or alcohols (e.g. propanol) as hydride sources and transition metal complexes as catalysts. We focus here on organometallic half-sandwich RuII and OsII η6-arene complexes and RhIII and IrIII η5-Cp x complexes which catalyse hydrogenation of biomolecules such as pyruvate and quinones in aqueous media, and generate biologically important species such as H2 and H2O2. Organometallic catalysts can achieve enantioselectivity, and moreover can be active in living cells, which is surprising on account of the variety of poisons present. Such catalysts can induce reductive stress using formate as hydride source or oxidative stress by accepting hydride from NAD(P)H. In some cases, photocatalytic redox reactions can be induced by light absorption at metal or flavin centres. These artificial transformations can interfere in biochemical pathways in unusual ways, and are the basis for the design of metallodrugs with novel mechanisms of action.
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Affiliation(s)
- Samya Banerjee
- Department of Chemistry, University of Warwick, Gibbet Hill Road Coventry CV4 7AL UK
| | - Peter J Sadler
- Department of Chemistry, University of Warwick, Gibbet Hill Road Coventry CV4 7AL UK
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16
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Barrios-Rivera J, Xu Y, Wills M. Asymmetric Transfer Hydrogenation of Unhindered and Non-Electron-Rich 1-Aryl Dihydroisoquinolines with High Enantioselectivity. Org Lett 2020; 22:6283-6287. [DOI: 10.1021/acs.orglett.0c02034] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
| | - Yingjian Xu
- GoldenKeys High-tech Materials Co., Ltd., Building B, Innovation & Entrepreneurship Park, Guian New Area, Guian 550025, Guizhou Province, China
| | - Martin Wills
- Department of Chemistry, The University of Warwick, Coventry CV4 7AL, United Kingdom
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17
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Luo C, Li L, Yue X, Li P, Zhang L, Yang Z, Pu M, Cao Z, Lei M. pH-Dependent transfer hydrogenation or dihydrogen release catalyzed by a [(η 6-arene)RuCl(κ 2- N, N-dmobpy)] + complex: a DFT mechanistic understanding. RSC Adv 2020; 10:10411-10419. [PMID: 35492899 PMCID: PMC9050405 DOI: 10.1039/c9ra10651k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 02/15/2020] [Indexed: 12/20/2022] Open
Abstract
The reaction mechanism of the pH-dependent transfer hydrogenation of a ketone or the dehydrogenation of formic acid catalyzed by a [(η6-arene)RuCl(κ2-N,N-dmobpy)]+ complex in aqueous media has been investigated using the density functional theory (DFT) method. The TM-catalyzed TH of ketones with formic acid as the hydrogen source proceeds via two steps: the formation of a metal hydride and the transfer of the hydride to the substrate ketone. The calculated results show that ruthenium hydride formation is the rate-determining step. This proceeds via an ion-pair mechanism with an energy barrier of 14.1 kcal mol−1. Interestingly, the dihydrogen release process of formic acid and the hydride transfer process that produces alcohols are competitive under different pH environments. The investigation explores the feasibility of the two pathways under different pH environments. Under acidic conditions (pH = 4), the free energy barrier of the dihydrogen release pathway is 4.5 kcal mol−1 that is higher than that of the hydride transfer pathway, suggesting that the hydride transfer pathway is more favorable than the dihydrogen release pathway. However, under strongly acidic conditions, the dihydrogen release pathway is more favorable compared to the hydride transfer pathway. In addition, the ruthenium hydride formation pathway is less favorable than the ruthenium hydroxo complex formation pathway under basic conditions. A DFT mechanistic study has been performed to unveil the nature of preference of transfer hydrogenation of ketones and dihydrogen release catalyzed by single-site cyclometallated ruthenium complexes under different pH environments.![]()
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Affiliation(s)
- Chenguang Luo
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Longfei Li
- College of Pharmaceutical Science, Hebei University Baoding 071002 China
| | - Xin Yue
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Pengjie Li
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Lin Zhang
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Zuoyin Yang
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Min Pu
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 China
| | - Zexing Cao
- State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University Xiamen 361005 China
| | - Ming Lei
- State Key Laboratory of Chemical Resource Engineering, Institute of Computational Chemistry, College of Chemistry, Beijing University of Chemical Technology Beijing 100029 China .,State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University Xiamen 361005 China
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18
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Mwansa JM, Page MI. Catalysis, kinetics and mechanisms of organo-iridium enantioselective hydrogenation-reduction. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02147g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The synthesis of chiral molecules is of great importance to the pharmaceutical, agrochemical, flavour and fragrance industries.
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Affiliation(s)
| | - Michael I. Page
- School of Chemistry
- University of Edinburgh
- Edinburgh EH9 3FJ
- UK
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19
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Wang F, Zheng LS, Lang QW, Yin C, Wu T, Phansavath P, Chen GQ, Ratovelomanana-Vidal V, Zhang X. Rh(iii)-Catalyzed diastereoselective transfer hydrogenation: an efficient entry to key intermediates of HIV protease inhibitors. Chem Commun (Camb) 2020; 56:3119-3122. [DOI: 10.1039/c9cc09793g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A highly efficient diastereoselective transfer hydrogenation of α-aminoalkyl α′-chloromethyl ketones catalyzed by a tethered rhodium complex was developed and successfully utilized in the synthesis of the key intermediates of HIV protease inhibitors.
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Affiliation(s)
- Fangyuan Wang
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin 150001
- People's Republic of China
- Shenzhen Grubbs Institute and Department of Chemistry
| | - Long-Sheng Zheng
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | - Qi-Wei Lang
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | - Congcong Yin
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | - Ting Wu
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | - Phannarath Phansavath
- PSL University
- Chimie ParisTech
- CNRS
- Institute of Chemistry for Life and Health Sciences
- CSB2D team
| | - Gen-Qiang Chen
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
| | | | - Xumu Zhang
- Shenzhen Grubbs Institute and Department of Chemistry
- Southern University of Science and Technology
- Shenzhen 518000
- People's Republic of China
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20
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Mwansa JM, Stirling MJ, Page MI. Changing the kinetic order of enantiomer formation and distinguishing between iminium ion and imine as the reactive species in the asymmetric transfer hydrogenation of substituted imines using a cyclopentadienyl iridium (III) complex. PURE APPL CHEM 2019. [DOI: 10.1515/pac-2019-0222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The iridium (III) complex of pentamethylcyclopentadiene and (S,S) or (R,R)-1,2-diphenyl-N′-tosylethane-1,2-diamine is an effective catalyst for the asymmetric transfer hydrogenation of imines under acidic conditions. However, the enantiomeric excess (ee) of the product amines from the reduction of 1-methyl-3,4-dihydroisoquinolines in either acetonitrile or dichloromethane, decreases exponentially. The dominant cause of the enantioselectivity is the difference in kinetic order of the formation of the two enantiomers with the S-enantiomer being formed in a first-order process whereas that for the R-enantiomer follows zero-order kinetics when (R,R)-TsDPEN is employed, due to different rate-limiting steps for the two processes. A series of 1-fluorinated methyl-3,4-dihydroisoquinolines were synthesised to change the rate-limiting dissociation of the (R) amine product from Ir (III) so that both enantiomers are formed with the same kinetic order. This results in almost complete removal of the enantioselectivity of the reduction. It has been suggested that reduction of imines using transition metal complexes occurs through the neutral imine rather than the more reactive iminium-ion. α-Substituted imines with electron-withdrawing groups make protonation more difficult but enhance the electrophilicity of the imine carbon facilitating nucleophilic attack. The pK
a of the iminium ions of 1-fluorinated methyl-3,4-dihydroisoquinolines were determined. Using the relative rates of the cyclopentadienyl iridium (III) complex catalysed reduction of these 1-fluorinated methyl-3,4-dihydroisoquinoline in acetonitrile and, under the acidic conditions of a 5:2 ratio of formic acid:triethylamine, showed that the iminium ion is the reactive species.
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Affiliation(s)
- Joseph M. Mwansa
- School of Chemistry , University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh EH9 3FJ , UK
| | | | - Michael I. Page
- School of Chemistry , University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh EH9 3FJ , UK
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21
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Barrios-Rivera J, Xu Y, Wills M. Probing the Effects of Heterocyclic Functionality in [(Benzene)Ru(TsDPENR)Cl] Catalysts for Asymmetric Transfer Hydrogenation. Org Lett 2019; 21:7223-7227. [PMID: 31361501 DOI: 10.1021/acs.orglett.9b02339] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A range of TsDPEN catalysts containing heterocyclic groups on the amine nitrogen atom were prepared and evaluated in the asymmetric transfer hydrogenation of ketones. Bidentate and tridentate ligands demonstrated a mutual exclusivity directly related to their function as catalysts. A broad series of ketones were reduced with these new catalysts, permitting the ready identification of an optimal catalyst for each substrate and revealing the subtle effects that changes to nearby donor groups can exhibit.
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Affiliation(s)
| | - Yingjian Xu
- GoldenKeys High-Tech Materials Co., Ltd. , Building B, Innovation & Entrepreneurship Park , Guian New Area , Guizhou Province 550025 , China
| | - Martin Wills
- Department of Chemistry , University of Warwick , Coventry , CV4 7AL , United Kingdom
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22
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Hejazifar M, Pálvölgyi ÁM, Bitai J, Lanaridi O, Bica-Schröder K. Asymmetric Transfer Hydrogenation in Thermomorphic Microemulsions Based on Ionic Liquids. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.9b00150] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mahtab Hejazifar
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
| | - Ádám Márk Pálvölgyi
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
| | - Jacqueline Bitai
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
| | - Olga Lanaridi
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
| | - Katharina Bica-Schröder
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060 Vienna, Austria
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23
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Dub PA, Matsunami A, Kuwata S, Kayaki Y. Cleavage of N–H Bond of Ammonia via Metal–Ligand Cooperation Enables Rational Design of a Conceptually New Noyori–Ikariya Catalyst. J Am Chem Soc 2019; 141:2661-2677. [DOI: 10.1021/jacs.8b12961] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pavel A. Dub
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-E4-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Asuka Matsunami
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-E4-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Shigeki Kuwata
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-E4-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yoshihito Kayaki
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 2-12-1-E4-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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24
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Barrios-Rivera J, Xu Y, Wills M. Applications of N′-monofunctionalised TsDPEN derivatives in asymmetric catalysis. Org Biomol Chem 2019; 17:1301-1321. [DOI: 10.1039/c8ob02889c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
N′-Monoalkylated or N′-mono(thio)acylated(N-sulfonyl)-1,2-diphenylethylene-1,2-diamine (TsDPEN) derivatives are have found extensive applications in asymmetric catalysis of a wide range of synthetic applications.
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Affiliation(s)
| | - Yingjian Xu
- GoldenKeys High-tech Materials Co. Ltd
- Building B
- Innovation & Entrepreneurship Park
- Guian New Area
- China
| | - Martin Wills
- Department of Chemistry
- Warwick University
- Coventry CV4 7AL
- UK
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25
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Chen F, Soldevila-Barreda JJ, Romero-Canelón I, Coverdale JPC, Song JI, Clarkson GJ, Kasparkova J, Habtemariam A, Brabec V, Wolny JA, Schünemann V, Sadler PJ. Effect of sulfonamidoethylenediamine substituents in Ru II arene anticancer catalysts on transfer hydrogenation of coenzyme NAD + by formate. Dalton Trans 2018; 47:7178-7189. [PMID: 29651471 DOI: 10.1039/c8dt00438b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A series of neutral pseudo-octahedral RuII sulfonamidoethylenediamine complexes [(η6-p-cym)Ru(N,N')Cl] where N,N' is N-(2-(R1,R2-amino)ethyl)-4-toluenesulfonamide (TsEn(R1,R2)) R1,R2 = Me,H (1); Me,Me (2); Et,H (3); benzyl,H (Bz, 4); 4-fluorobenzyl,H (4-F-Bz, 5) or naphthalen-2-ylmethyl,H (Naph, 6), were synthesised and characterised including the X-ray crystal structure of 3. These complexes catalyse the reduction of NAD+ regioselectively to 1,4-NADH by using formate as the hydride source. The catalytic efficiency depends markedly on the steric and electronic effects of the N-substitutent, with turnover frequencies (TOFs) increasing in the order: 1 < 2 < 3, 6 < 4, 5, achieving a TOF of 7.7 h-1 for 4 with a 95% yield of 1,4-NADH. The reduction rate was highest between pH* (deuterated solvent) 6 and 7.5 and improved with an increase in formate concentration (TOF of 18.8 h-1, 140 mM formate). The calculations suggested initial substitution of an aqua ligand by formate, followed by hydride transfer to RuII and then to NAD+, and indicated specific interactions between the aqua complex and both NAD+ and NADH, the former allowing a preorganisation involving interaction between the aqua ligand, formate anion and the pyridine ring of NAD+. The complexes exhibited antiproliferative activity towards A2780 human ovarian cancer cells with IC50 values ranging from 1 to 31 μM, the most potent complex, [(η6-p-cym)Ru(TsEn(Bz,H))Cl] (4, IC50 = 1.0 ± 0.1 μM), having a potency similar to the anticancer drug cisplatin. Co-administration with sodium formate (2 mM), increased the potency of all complexes towards A2780 cells by 20-36%, with the greatest effect seen for complex 6.
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Affiliation(s)
- Feng Chen
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK.
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26
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Facchetti G, Bucci R, Fusè M, Rimoldi I. Asymmetric Hydrogenation vs
Transfer Hydrogenation in the Reduction of Cyclic Imines. ChemistrySelect 2018. [DOI: 10.1002/slct.201802223] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Giorgio Facchetti
- Dipartimento di Scienze Farmaceutiche; Università degli Studi di Milano, Via Golgi 19; 10033 Milano Italia
| | - Raffaella Bucci
- Dipartimento di Scienze Farmaceutiche; Università degli Studi di Milano, Via Golgi 19; 10033 Milano Italia
| | - Marco Fusè
- Scuola Normale Superiore, Piazza dei Cavalieri 7; 56126 Pisa Italia
| | - Isabella Rimoldi
- Dipartimento di Scienze Farmaceutiche; Università degli Studi di Milano, Via Golgi 19; 10033 Milano Italia
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27
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Roszkowski P, Maurin JK, Czarnocki Z. (-)-Menthol as a source of new N,N-diamine ligands for asymmetric transfer hydrogenation. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.04.068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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28
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Chen F, Romero-Canelón I, Soldevila-Barreda JJ, Song JI, Coverdale JPC, Clarkson GJ, Kasparkova J, Habtemariam A, Wills M, Brabec V, Sadler PJ. Transfer Hydrogenation and Antiproliferative Activity of Tethered Half-Sandwich Organoruthenium Catalysts. Organometallics 2018; 37:1555-1566. [PMID: 29887657 PMCID: PMC5989272 DOI: 10.1021/acs.organomet.8b00132] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Indexed: 12/14/2022]
Abstract
![]()
We report the synthesis
and characterization of four neutral organometallic
tethered complexes, [Ru(η6-Ph(CH2)3-ethylenediamine-N-R)Cl], where R = methanesulfonyl
(Ms, 1), toluenesulfonyl (Ts, 2), 4-trifluoromethylbenzenesulfonyl
(Tf, 3), and 4-nitrobenzenesulfonyl (Nb, 4), including their X-ray crystal structures. These complexes exhibit
moderate antiproliferative activity toward human ovarian, lung, hepatocellular,
and breast cancer cell lines. Complex 2 in particular
exhibits a low cross-resistance with cisplatin. The complexes show
potent catalytic activity in the transfer hydrogenation of NAD+ to NADH with formate as hydride donor in aqueous solution
(310 K, pH 7). Substituents on the chelated ligand decreased the turnover
frequency in the order Nb > Tf > Ts > Ms. An enhancement
of antiproliferative
activity (up to 22%) was observed on coadministration with nontoxic
concentrations of sodium formate (0.5–2 mM). Complex 2 binds to nucleobase guanine (9-EtG), but DNA appears not
to be the target, as little binding to calf thymus DNA or bacterial
plasmid DNA was observed. In addition, complex 2 reacts
rapidly with glutathione (GSH), which might hamper transfer hydrogenation
reactions in cells. Complex 2 induced a dose-dependent
G1 cell cycle arrest after 24 h exposure in A2780 human
ovarian cancer cells while promoting an increase in reactive oxygen
species (ROS), which is likely to contribute to its antiproliferative
activity.
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Affiliation(s)
- Feng Chen
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Isolda Romero-Canelón
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K.,School of Pharmacy, Institute of Clinical Sciences, University of Birmingham, Birmingham B15 2TT, U.K
| | | | - Ji-Inn Song
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - James P C Coverdale
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Guy J Clarkson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Jana Kasparkova
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Abraha Habtemariam
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Martin Wills
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Viktor Brabec
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Kralovopolska 135, CZ-61265 Brno, Czech Republic
| | - Peter J Sadler
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
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29
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Chew RJ, Wills M. Ruthenium-Catalyzed Asymmetric Reduction of Isoxazolium Salts: Access to Optically Active Δ4-Isoxazolines. J Org Chem 2018; 83:2980-2985. [DOI: 10.1021/acs.joc.7b03229] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Renta Jonathan Chew
- A*STAR
Graduate Academy (A*GA), Agency for Science, Technology and Research (A*STAR), Singapore 138668
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - Martin Wills
- Department
of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom
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30
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Han B, Zhao L, Song Y, Zhao Z, Yang D, Liu R, Liu G. A superhydrophobic mesostructured silica as a chiral organometallic immobilization platform for heterogeneous asymmetric catalysis. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00648b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Super-hydrophobic and mesostructured silica-supported molecular catalysts were developed and their applications in enantioselective organic transformation were investigated.
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Affiliation(s)
- Bing Han
- Key Laboratory of Resource Chemistry of Ministry of Education
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai
- China
| | - Lei Zhao
- Key Laboratory of Resource Chemistry of Ministry of Education
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai
- China
| | - Yongkang Song
- Key Laboratory of Resource Chemistry of Ministry of Education
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai
- China
| | - Zhongrui Zhao
- Key Laboratory of Resource Chemistry of Ministry of Education
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai
- China
| | - Dongfeng Yang
- Key Laboratory of Resource Chemistry of Ministry of Education
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai
- China
| | - Rui Liu
- Key Laboratory of Resource Chemistry of Ministry of Education
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai
- China
| | - Guohua Liu
- Key Laboratory of Resource Chemistry of Ministry of Education
- Shanghai Key Laboratory of Rare Earth Functional Materials
- Shanghai Normal University
- Shanghai
- China
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31
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32
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Liao H, Chou Y, Wang Y, Zhang H, Cheng T, Liu G. Multistep Organic Transformations over Base-Rhodium/Diamine-Bifunctionalized Mesostructured Silica Nanoparticles. ChemCatChem 2017. [DOI: 10.1002/cctc.201700436] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Hang Liao
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key; Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd. 200234 Shanghai Shi P.R. China), Fax: (+86) 216-432-280
| | - Yajie Chou
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key; Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd. 200234 Shanghai Shi P.R. China), Fax: (+86) 216-432-280
| | - Yu Wang
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key; Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd. 200234 Shanghai Shi P.R. China), Fax: (+86) 216-432-280
| | - Han Zhang
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key; Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd. 200234 Shanghai Shi P.R. China), Fax: (+86) 216-432-280
| | - Tanyu Cheng
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key; Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd. 200234 Shanghai Shi P.R. China), Fax: (+86) 216-432-280
| | - Guohua Liu
- Key Laboratory of Resource Chemistry of Ministry of Education, Shanghai Key; Laboratory of Rare Earth Functional Materials; Shanghai Normal University; No.100 Guilin Rd. 200234 Shanghai Shi P.R. China), Fax: (+86) 216-432-280
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33
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Wu L, Jin R, Li L, Hu X, Cheng T, Liu G. A Michael Addition–Asymmetric Transfer Hydrogenation One-Pot Enantioselective Tandem Process for Syntheses of Chiral γ-Secondary Amino Alcohols. Org Lett 2017; 19:3047-3050. [DOI: 10.1021/acs.orglett.7b00823] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Liang Wu
- Key Laboratory of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Ronghua Jin
- Key Laboratory of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Liang Li
- Key Laboratory of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Xiaoying Hu
- Key Laboratory of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Tanyu Cheng
- Key Laboratory of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
| | - Guohua Liu
- Key Laboratory of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, P. R. China
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34
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Zhang Z, Butt NA, Zhang W. Asymmetric Hydrogenation of Nonaromatic Cyclic Substrates. Chem Rev 2016; 116:14769-14827. [DOI: 10.1021/acs.chemrev.6b00564] [Citation(s) in RCA: 224] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Zhenfeng Zhang
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Nicholas A. Butt
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wanbin Zhang
- School of Pharmacy and ‡School of Chemistry and Chemical
Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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35
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Ayad T, Phansavath P, Ratovelomanana-Vidal V. Transition-Metal-Catalyzed Asymmetric Hydrogenation and Transfer Hydrogenation: Sustainable Chemistry to Access Bioactive Molecules. CHEM REC 2016; 16:2750-2767. [DOI: 10.1002/tcr.201600100] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Indexed: 11/07/2022]
Affiliation(s)
- Tahar Ayad
- Institut de Recherche de Chimie Paris; PSL Research University, Chimie ParisTech-CNRS; 11 rue Pierre et Marie Curie 75005 Paris France
| | - Phannarath Phansavath
- Institut de Recherche de Chimie Paris; PSL Research University, Chimie ParisTech-CNRS; 11 rue Pierre et Marie Curie 75005 Paris France
| | - Virginie Ratovelomanana-Vidal
- Institut de Recherche de Chimie Paris; PSL Research University, Chimie ParisTech-CNRS; 11 rue Pierre et Marie Curie 75005 Paris France
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36
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Chrzanowska M, Grajewska A, Rozwadowska MD. Asymmetric Synthesis of Isoquinoline Alkaloids: 2004-2015. Chem Rev 2016; 116:12369-12465. [PMID: 27680197 DOI: 10.1021/acs.chemrev.6b00315] [Citation(s) in RCA: 235] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
In the past decade, the asymmetric synthesis of chiral nonracemic isoquinoline alkaloids, a family of natural products showing a wide range of structural diversity and biological and pharmaceutical activity, has been based either on continuation or improvement of known traditional methods or on new, recently developed, strategies. Both diastereoselective and enantioselective catalytic methods have been applied. This review describes the stereochemically modified traditional syntheses (the Pictet-Spengler, the Bischler-Napieralski, and the Pomeranz-Fritsch-Bobbitt) along with strategies based on closing of the nitrogen-containing ring B of the isoquinoline core by the formation of bonds between C1-N2, N2-C3, C1-N2/N2-C3, and C1-N2/C4-C4a atoms. Methods involving introduction of substituents at the C1 carbon of isoquinoline core along with syntheses applying various biocatalytic techniques have also been reviewed.
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Affiliation(s)
- Maria Chrzanowska
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznań, Poland
| | - Agnieszka Grajewska
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznań, Poland
| | - Maria D Rozwadowska
- Faculty of Chemistry, Adam Mickiewicz University , Umultowska 89b, 61-614 Poznań, Poland
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37
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Touge T, Arai T. Asymmetric Hydrogenation of Unprotected Indoles Catalyzed by η(6)-Arene/N-Me-sulfonyldiamine-Ru(II) Complexes. J Am Chem Soc 2016; 138:11299-305. [PMID: 27509089 DOI: 10.1021/jacs.6b06295] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Protecting-group-free transformation is a challenging and important issue in atom-economical organic synthesis. The η(6)-arene/N-Me-sulfonyldiamine-Ru(II)-BF4 complex-catalyzed asymmetric hydrogenation of 2-substituted unprotected indoles in weakly acidic hexafluoroisopropanol gives optically active indoline compounds with up to >99% ee. Under mild reaction media, halogen atoms and synthetically important protecting groups (e.g., silyl ether, acetal, benzyl ether, and ester) on indoles are maintained, which is advantageous for the synthesis of further complex indoline molecules.
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Affiliation(s)
- Taichiro Touge
- Molecular Chirality Research Center, Department of Chemistry, Graduate School of Science, Chiba University , 1-33 Yayoi, Inage-Ku, Chiba 263-8522, Japan.,Corporate Research & Development Division, Takasago International Corporation , 1-4-11 Nishi-yawata, Hiratsuka City, Kanagawa 254-0073, Japan
| | - Takayoshi Arai
- Molecular Chirality Research Center, Department of Chemistry, Graduate School of Science, Chiba University , 1-33 Yayoi, Inage-Ku, Chiba 263-8522, Japan
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38
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Zhang K, An J, Su Y, Zhang J, Wang Z, Cheng T, Liu G. Amphiphilic Hyperbranched Polyethoxysiloxane: A Self-Templating Assembled Platform to Fabricate Functionalized Mesostructured Silicas for Aqueous Enantioselective Reactions. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01315] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Kun Zhang
- Key Laboratory
of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Juzeng An
- Key Laboratory
of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Yanchao Su
- Key Laboratory
of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Jueyu Zhang
- Key Laboratory
of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Ziyun Wang
- Key Laboratory
of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Tanyu Cheng
- Key Laboratory
of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Guohua Liu
- Key Laboratory
of Resource
Chemistry of Ministry of Education, Shanghai Key Laboratory of Rare
Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
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39
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G. Nedden H, Zanotti-Gerosa A, Wills M. The Development of Phosphine-Free "Tethered" Ruthenium(II) Catalysts for the Asymmetric Reduction of Ketones and Imines. CHEM REC 2016; 16:2619-2639. [DOI: 10.1002/tcr.201600084] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Hans G. Nedden
- Johnson Matthey; 28 Cambridge Science Park Cambridge CB4 0FP (UK)
| | | | - Martin Wills
- The Department of Chemistry; The University of Warwick; Coventry CV4 7AL UK
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40
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Benmekhbi L, Louafi F, Roisnel T, Hurvois JP. Synthesis of Tetrahydroisoquinoline Alkaloids and Related Compounds through the Alkylation of Anodically Prepared α-Amino Nitriles. J Org Chem 2016; 81:6721-39. [PMID: 27410716 DOI: 10.1021/acs.joc.6b01419] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
α-Amino nitrile 2a was conveniently prepared in two individual steps from chiral hexafluorophosphate salt isoquinolinium (-)-8b including anodic cyanation as an efficient means to activate the sp(3) C1-H bond of the THIQ nucleus. The lithiation of 2a was carried out in THF at -80 °C in the presence of LDA to produce a stable α-amino carbanion which was condensed on a large variety of alkyl halides. The resulting quaternary α-amino nitriles were subjected to a stereoselective reductive decyanation in ethanol in the presence of NaBH4 as the hydride donor to yield N-Boc-1-alkyl-THIQs (+)-10a-g in up to 97:3 er's after removal of the chiral auxiliary group. Examination of the ORTEP view of THIQ (+)-1f revealed that the newly created stereogenic center had an absolute S configuration. Likewise, (-)-xylopinine was synthesized in four workup steps in an overall 63% yield from α-amino nitrile (+)-2b. In this process, crystallization of an enantioenriched mixture (90:10) of (-)-norlaudanosine with 1 equiv of (-)-N-acetyl-l-leucine afforded the leucinate salt (+)-13 (99:1 dr). Similarly, (+)-salsolidine was displaced from its (-)-DBTA salt (-)-12 in 99:1 er, which was determined by proton and carbon NMR spectroscopy in the presence of thiophosphinic acid (+)-14 as the chiral solvating agent.
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Affiliation(s)
- Lotfi Benmekhbi
- Laboratoire de Chimie des Matériaux, Faculté des Sciences Exactes, Université de Constantine 1 , route de Ain El Bey, 25000 Constantine, Algérie
| | - Fadila Louafi
- Unité de Recherche CHEMS, Faculté des Sciences Exactes, Université de Constantine 1 , route de Ain El Bey, 25000 Constantine, Algérie
| | - Thierry Roisnel
- Centre de Diffractométrie X, Institut des Sciences Chimiques de Rennes, UMR CNRS 6226, CNRS-Université de Rennes 1 , Bat. 10 B, Campus de Beaulieu, Avenue du Général Leclerc, 35042 Rennes Cedex, France
| | - Jean-Pierre Hurvois
- Institut des Sciences Chimiques de Rennes, UMR 6226, CNRS-Université de Rennes 1 , 2 Avenue Léon Bernard, 35043, Rennes Cedex, France
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41
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Shende VS, Shingote SK, Deshpande SH, Kelkar AA. Asymmetric Transfer Hydrogenation of Cyclic Imines in Water with a Versatile Hydrogen Donor Formic Acid/N-Methylpiperidine: Rapid Access to Highly Enantioselective Amines. ChemistrySelect 2016. [DOI: 10.1002/slct.201600497] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Vaishali S. Shende
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Pune 411008 India
| | - Savita K. Shingote
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Pune 411008 India
| | - Sudhindra H. Deshpande
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Pune 411008 India
| | - Ashutosh. A. Kelkar
- Chemical Engineering and Process Development Division; CSIR-National Chemical Laboratory; Pune 411008 India
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42
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Pan HJ, Zhang Y, Shan C, Yu Z, Lan Y, Zhao Y. Asymmetric Transfer Hydrogenation of Imines using Alcohol: Efficiency and Selectivity are Influenced by the Hydrogen Donor. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201604025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hui-Jie Pan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Yao Zhang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Chunhui Shan
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 P.R. China
| | - Zhaoyuan Yu
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 P.R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 P.R. China
| | - Yu Zhao
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
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43
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Pan HJ, Zhang Y, Shan C, Yu Z, Lan Y, Zhao Y. Asymmetric Transfer Hydrogenation of Imines using Alcohol: Efficiency and Selectivity are Influenced by the Hydrogen Donor. Angew Chem Int Ed Engl 2016; 55:9615-9. [DOI: 10.1002/anie.201604025] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/14/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Hui-Jie Pan
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Yao Zhang
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
| | - Chunhui Shan
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 P.R. China
| | - Zhaoyuan Yu
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 P.R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering; Chongqing University; Chongqing 400030 P.R. China
| | - Yu Zhao
- Department of Chemistry; National University of Singapore; 3 Science Drive 3 Singapore 117543 Singapore
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44
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Štefane B, Požgan F. Metal-Catalysed Transfer Hydrogenation of Ketones. Top Curr Chem (Cham) 2016; 374:18. [DOI: 10.1007/s41061-016-0015-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 02/17/2016] [Indexed: 12/31/2022]
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45
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Wills M. Imino Transfer Hydrogenation Reductions. Top Curr Chem (Cham) 2016; 374:14. [DOI: 10.1007/s41061-016-0013-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 02/13/2016] [Indexed: 10/22/2022]
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46
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Role of the sulfonamide moiety of Ru(II) half-sandwich complexes in the asymmetric transfer hydrogenation of 3,4-dihydroisoquinolines. REACTION KINETICS MECHANISMS AND CATALYSIS 2016. [DOI: 10.1007/s11144-016-0991-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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47
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48
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Vilhanová B, Václavík J, Šot P, Pecháček J, Zápal J, Pažout R, Maixner J, Kuzma M, Kačer P. Enantioselective hydrogenation of cyclic imines catalysed by Noyori–Ikariya half-sandwich complexes and their analogues. Chem Commun (Camb) 2016; 52:362-5. [DOI: 10.1039/c5cc06712j] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Trifluoroacetic acid activates cyclic imines in a new non-air sensitive asymmetric hydrogenation method. New transfer hydrogenation catalysts are demonstrated.
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Affiliation(s)
- B. Vilhanová
- Department of Organic Technology
- University of Chemistry and Technology
- CZ-166 28 Prague
- Czech Republic
| | - J. Václavík
- Institute of Organic Chemistry and Biochemistry
- v.v.i
- Academy of Sciences of the Czech Republic
- CZ-166 10 Prague
- Czech Republic
| | - P. Šot
- Department of Organic Technology
- University of Chemistry and Technology
- CZ-166 28 Prague
- Czech Republic
| | - J. Pecháček
- Department of Organic Technology
- University of Chemistry and Technology
- CZ-166 28 Prague
- Czech Republic
| | - J. Zápal
- Laboratory of Molecular Structure Characterization
- Institute of Microbiology
- v.v.i
- Academy of Sciences of the Czech Republic
- CZ-142 20 Prague
| | - R. Pažout
- Central Laboratories
- University of Chemistry and Technology
- CZ-166 28 Prague
- Czech Republic
| | - J. Maixner
- Central Laboratories
- University of Chemistry and Technology
- CZ-166 28 Prague
- Czech Republic
| | - M. Kuzma
- Laboratory of Molecular Structure Characterization
- Institute of Microbiology
- v.v.i
- Academy of Sciences of the Czech Republic
- CZ-142 20 Prague
| | - P. Kačer
- Department of Organic Technology
- University of Chemistry and Technology
- CZ-166 28 Prague
- Czech Republic
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49
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Stirling MJ, Sweeney G, MacRory K, Blacker AJ, Page MI. The kinetics and mechanism of the organo-iridium-catalysed enantioselective reduction of imines. Org Biomol Chem 2016; 14:3614-22. [DOI: 10.1039/c6ob00245e] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The enantiomeric excess (ee) for the organo-iridium catalysed reduction of imines decreases during the reaction because the rate of formation of the (R)-product amine follows first-order kinetics whereas that for the (S)-enantiomer is zero-order.
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Affiliation(s)
- Matthew J. Stirling
- IPOS
- The Page Laboratories
- Department of Chemical and Biological Sciences
- The University of Huddersfield
- Huddersfield
| | - Gemma Sweeney
- IPOS
- The Page Laboratories
- Department of Chemical and Biological Sciences
- The University of Huddersfield
- Huddersfield
| | - Kerry MacRory
- IPOS
- The Page Laboratories
- Department of Chemical and Biological Sciences
- The University of Huddersfield
- Huddersfield
| | - A. John Blacker
- Institute of Process Research & Development
- School of Chemistry
- University of Leeds
- Leeds
- UK
| | - Michael I. Page
- IPOS
- The Page Laboratories
- Department of Chemical and Biological Sciences
- The University of Huddersfield
- Huddersfield
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50
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Fu Y, Sanchez-Cano C, Soni R, Romero-Canelon I, Hearn JM, Liu Z, Wills M, Sadler PJ. The contrasting catalytic efficiency and cancer cell antiproliferative activity of stereoselective organoruthenium transfer hydrogenation catalysts. Dalton Trans 2016; 45:8367-78. [DOI: 10.1039/c6dt01242f] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The rapidly growing area of catalytic ruthenium chemistry has provided new complexes with potential as organometallic anticancer agents with novel mechanisms of action.
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Affiliation(s)
- Ying Fu
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | | | - Rina Soni
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | | | | | - Zhe Liu
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | - Martin Wills
- Department of Chemistry
- University of Warwick
- Coventry
- UK
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