1
|
Ghosh D, Kumar GR, Subramanian S, Tanaka K. More Than Just a Reagent: The Rise of Renewable Organohydrides for Catalytic Reduction of Carbon Dioxide. CHEMSUSCHEM 2021; 14:824-841. [PMID: 33369102 DOI: 10.1002/cssc.202002660] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/06/2020] [Indexed: 06/12/2023]
Abstract
Stoichiometric carbon dioxide reduction to highly reduced C1 molecules, such as formic acid (2e- ), formaldehyde (4e- ), methanol (6e- ) or even most-reduced methane (8e- ), has been successfully achieved by using organosilanes, organoboranes, and frustrated Lewis Pairs (FLPs) in the presence of suitable catalyst. The development of renewable organohydride compounds could be the best alternative in this regard as they have shown promise for the transfer of hydride directly to CO2 . Reduction of CO2 by two electrons and two protons to afford formic acid by using renewable organohydride molecules has recently been investigated by various groups. However, catalytic CO2 reduction to ≥2e- -reduced products by using renewable organohydride-based molecules has rarely been explored. This Minireview summarizes important findings in this regard, encompassing both stoichiometric and catalytic CO2 reduction.
Collapse
Affiliation(s)
- Debashis Ghosh
- Department of Chemistry, St. Joseph's College (Autonomous), Bangalore, 560027, Karnataka, India
| | - George Rajendra Kumar
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences, Coimbatore, 641114, Tamil Nadu, India
| | - Saravanan Subramanian
- Inorganic Materials and Catalysis Division, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364002, Gujarat, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Koji Tanaka
- Institute for Integrated Cell-Material Sciences (KUIAS/iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto, 606-8501, Japan
- Department of Applied Chemistry, College of Life Science, Ritsumeikan University, 525-8577 Noji-higashi, 1-1-1, Kusatsu, Shiga, Japan
| |
Collapse
|
2
|
Tang J, Dong W, Chen F, Deng L, Xian M. Rhodium catalysts with cofactor mimics for the biomimetic reduction of CN bonds. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00904d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Bio-inspired reduction of CN bonds was successfully performed using rhodium catalysts containing cofactor mimics. The intramolecular cooperation between rhodium and cofactor mimics enabled the transformation with good selectivity. A plausible mechanism was also proposed.
Collapse
Affiliation(s)
- Jie Tang
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- P.R. China
| | - Wenjin Dong
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- P.R. China
| | - Fushan Chen
- College of Chemical Engineering
- Qingdao University of Sciences & Technology
- Qingdao
- P.R. China
| | - Li Deng
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- P.R. China
| | - Mo Xian
- CAS Key Laboratory of Bio-based Materials
- Qingdao Institute of Bioenergy and Bioprocess Technology
- Chinese Academy of Sciences
- Qingdao 266101
- P.R. China
| |
Collapse
|
3
|
Luo N, Zhong Y, Wen H, Luo R. Cyclometalated Iridium Complex-Catalyzed N-Alkylation of Amines with Alcohols via Borrowing Hydrogen in Aqueous Media. ACS OMEGA 2020; 5:27723-27732. [PMID: 33134736 PMCID: PMC7594325 DOI: 10.1021/acsomega.0c04192] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 09/28/2020] [Indexed: 05/06/2023]
Abstract
This paper develops a methodology for cyclometalated iridium complex-catalyzed N-alkylation of amines with alcohols via borrowing hydrogen in the aqueous phase. The cyclometalated iridium catalyst-mediated N-alkylation of amines with alcohols displays high activity (S/C up to 10,000 and yield up to 96%) and ratio of amine/imine (up to >99:1) in a broad range of substrates (up to 46 examples) using water as the green and eco-friendly solvent. Most importantly, this transformation is simple, efficient, and can be performed at a gram scale, showcasing its potential for industrially synthesizing N-alkylamine compounds.
Collapse
|
4
|
Na F, Lopez SS, Beauseigneur A, Hernandez LW, Sun Z, Antilla JC. Catalytic Asymmetric Transfer Hydrogenation of trans-Chalcone Derivatives Using BINOL-derived Boro-phosphates. Org Lett 2020; 22:5953-5957. [PMID: 32692927 DOI: 10.1021/acs.orglett.0c02042] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chiral phosphoric-acid-catalyzed asymmetric reductions of trans-chalcones have been investigated in this work. A BINOL-derived boro-phosphate-catalyzed asymmetric transfer hydrogenation of the carbon-carbon double bond of trans-chalcone derivatives employing borane as a hydride source was realized. This methodology provides a convenient procedure to access chiral dihydrochalone derivatives in high yields and with high enantioselectivities under mild conditions.
Collapse
Affiliation(s)
- Fei Na
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Susana S Lopez
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Alice Beauseigneur
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Lucas W Hernandez
- Department of Chemistry, University of South Florida, Tampa, Florida 33620, United States
| | - Zhuoxin Sun
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jon C Antilla
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| |
Collapse
|
5
|
Chen Z, Chen G, Aboo AH, Iggo J, Xiao J. Methanol as Hydrogen Source: Transfer Hydrogenation of Aldehydes near Room Temperature. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000241] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Zhenyu Chen
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| | - Guanhong Chen
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| | - Ahmed H. Aboo
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| | - Jonathan Iggo
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| | - Jianliang Xiao
- Department of ChemistryUniversity of Liverpool Liverpool L69 7ZD UK
| |
Collapse
|
6
|
Das B, Jia C, Ching K, Bhadbhade M, Chen X, Ball GE, Colbran SB, Zhao C. Ruthenium Complexes in Homogeneous and Heterogeneous Catalysis for Electroreduction of CO
2. ChemCatChem 2020. [DOI: 10.1002/cctc.201902020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Biswanath Das
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| | - Chen Jia
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| | - Karin Ching
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| | - Mohan Bhadbhade
- Mark Wainwright Analytical Centre The University of New South Wales Sydney NSW 2052 Australia
| | - Xianjue Chen
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| | - Graham E. Ball
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| | - Stephen B. Colbran
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| | - Chuan Zhao
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| |
Collapse
|
7
|
Wei J, Zhao L, He C, Zheng S, Reek JNH, Duan C. Metal-Organic Capsules with NADH Mimics as Switchable Selectivity Regulators for Photocatalytic Transfer Hydrogenation. J Am Chem Soc 2019; 141:12707-12716. [PMID: 31319035 DOI: 10.1021/jacs.9b05351] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Switchable selective hydrogenation among the groups in multifunctional compounds is challenging because selective hydrogenation is of great interest in the synthesis of fine chemicals and pharmaceuticals as a result of the importance of key intermediates. Herein, we report a new approach to highly selectively (>99%) reducing C═X (X = O, N) over the thermodynamically more favorable nitro groups locating the substrate in a metal-organic capsule containing NADH active sites. Within the capsule, the NADH active sites reduce the double bonds via a typical 2e- hydride transfer hydrogenation, and the formed excited-state NAD+ mimics oxidize the reductant via two consecutive 1e- processes to regenerate the NADH active sites under illumination. Outside the capsule, nitro groups are highly selectively reduced through a typical 1e- hydrogenation. By combining photoinduced 1e- transfer regeneration outside the cage, both 1e- and 2e- hydrogenation can be switched controllably by varying the concentrations of the substrates and the redox potential of electron donors. This promising alternative approach, which could proceed under mild reaction conditions and use easy-to-handle hydrogen donors with enhanced high selectivity toward different groups, is based on the localization and differentiation of the 2e- and 1e- hydrogenation pathways inside and outside the capsules, provides a deep comprehension of photocatalytic microscopic reaction processes, and will allow the design and optimization of catalysts. We demonstrate the advantage of this method over typical hydrogenation that involves specific activation via well-modified catalytic sites and present results on the high, well-controlled, and switchable selectivity for the hydrogenation of a variety of substituted and bifunctional aldehydes, ketones, and imines.
Collapse
Affiliation(s)
- Jianwei Wei
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry , Dalian University of Technology , Dalian 116024 , People's Republic of China
| | - Liang Zhao
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry , Dalian University of Technology , Dalian 116024 , People's Republic of China
| | - Cheng He
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry , Dalian University of Technology , Dalian 116024 , People's Republic of China
| | - Sijia Zheng
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry , Dalian University of Technology , Dalian 116024 , People's Republic of China
| | - Joost N H Reek
- Van't Hoff Institute for Molecular Sciences , University of Amsterdam , Science Park 904 , Amsterdam 1098XH , The Netherlands
| | - Chunying Duan
- State Key Laboratory of Fine Chemicals, Zhang Dayu College of Chemistry , Dalian University of Technology , Dalian 116024 , People's Republic of China
| |
Collapse
|
8
|
Fu LY, Ying J, Qi X, Peng JB, Wu XF. Palladium-Catalyzed Carbonylative Synthesis of Isoindolinones from Benzylamines with TFBen as the CO Source. J Org Chem 2019; 84:1421-1429. [DOI: 10.1021/acs.joc.8b02862] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Lu-Yang Fu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha Campus, Hangzhou 310018, People’s Republic of China
| | - Jun Ying
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha Campus, Hangzhou 310018, People’s Republic of China
| | - Xinxin Qi
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha Campus, Hangzhou 310018, People’s Republic of China
| | - Jin-Bao Peng
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha Campus, Hangzhou 310018, People’s Republic of China
| | - Xiao-Feng Wu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha Campus, Hangzhou 310018, People’s Republic of China
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock, Albert-Einstein-Straβe 29a, 18059 Rostock, Germany
| |
Collapse
|
9
|
Kobayashi K, Koizumi TA, Ghosh D, Kajiwara T, Kitagawa S, Tanaka K. Electrochemical behavior of a Rh(pentamethylcyclopentadienyl) complex bearing an NAD +/NADH-functionalized ligand. Dalton Trans 2018. [PMID: 29537007 DOI: 10.1039/c7dt04594h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A RhCp* (Cp* = pentamethylcyclopentadienyl) complex bearing an NAD+/NADH-functionalized ligand, [RhCp*(pbn)Cl]Cl ([1]Cl, pbn = (2-(2-pyridyl)benzo[b]-1,5-naphthyridine)), was synthesized. The cyclic voltammogram of [1]Cl in CH3CN shows two reversible redox waves at E1/2 = -0.58 and -1.53 V (vs. the saturated calomel electrode (SCE)), which correspond to the RhIII/RhI and pbn/pbn˙- redox couples, respectively. The addition of acetic acid to the solution afforded the proton-coupled two-electron reduction of [1]Cl at -0.62 V, from which [RhCp*(pbnHH)Cl]+ was selectively generated, probably via a hydride transfer from a RhIII-hydride intermediate to the pbn ligand. Complex [1]Cl is stable under acidic conditions, whereas a methyl proton of the Cp* moiety dissociates under basic conditions. The resulting anionic methylene group attacks the para carbon of the free pyridine of pbn, accompanied by protonation of the nitrogen atom of the ligand. As a result, treatment of [1]Cl with a base produces selectively the cyclic complex [1CH]Cl, which bears a reduced pbn framework (pbnCH). [1CH]Cl forms 1 : 1 adducts with PhCOO-via hydrogen bonding. A similar adduct, formed by a Ru-pbnHH scaffold and RCOO- (R = CH3, C6H5), has been reported to react with CO2 to produce HCOO- under concomitant regeneration of Ru-pbn. The adduct of [1CH]Cl with PhCOO-, however, lacks such hydride-donor ability, due to a steric barrier in the molecular structure of [1CH]Cl, which hampers the hydride transfer.
Collapse
Affiliation(s)
- Katsuaki Kobayashi
- Department of Chemistry, Graduate School of Science, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan.
| | | | | | | | | | | |
Collapse
|
10
|
Ergen S, Nişancı B, Metin Ö. One-pot reductive amination of aldehydes with nitroarenes using formic acid as the hydrogen donor and mesoporous graphitic carbon nitride supported AgPd alloy nanoparticles as the heterogeneous catalyst. NEW J CHEM 2018. [DOI: 10.1039/c8nj01569d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A facile one-pot protocol has been developed for the synthesis of secondary amines via a tandem reductive amination of aldehydes with nitroaromatics.
Collapse
Affiliation(s)
- Seda Ergen
- Department of Chemistry
- Faculty of Science
- Atatürk University
- Erzurum
- Turkey
| | - Bilal Nişancı
- Food Technology Program
- Narman Vocational Training High School
- Narman
- Erzurum
- Turkey
| | - Önder Metin
- Department of Chemistry
- Faculty of Science
- Atatürk University
- Erzurum
- Turkey
| |
Collapse
|
11
|
Synthesis and structural studies of half-sandwich Cp* rhodium and Cp* iridium complexes featuring mono, bi and tetradentate nitrogen and oxygen donor ligands. J CHEM SCI 2017. [DOI: 10.1007/s12039-017-1270-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
12
|
de Boer S, Korstanje TJ, La Rooij SR, Kox R, Reek JNH, van der Vlugt JI. Ruthenium PNN(O) Complexes: Cooperative Reactivity and Application as Catalysts for Acceptorless Dehydrogenative Coupling Reactions. Organometallics 2017; 36:1541-1549. [PMID: 29353952 PMCID: PMC5770139 DOI: 10.1021/acs.organomet.7b00111] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Indexed: 11/30/2022]
Abstract
The novel tridentate PNNOH pincer ligand LH features a reactive 2-hydroxypyridine functionality as well as a bipyridyl-methylphosphine skeleton for meridional coordination. This proton-responsive ligand coordinates in a straightforward manner to RuCl(CO)(H)(PPh3)3 to generate complex 1. The methoxy-protected analogue LMe was also coordinated to Ru(II) for comparison. Both species have been crystallographically characterized. Site-selective deprotonation of the 2-hydroxypyridine functionality to give 1' was achieved using both mild (DBU) and strong bases (KOtBu and KHMDS), with no sign of involvement of the phosphinomethyl side arm that was previously established as the reactive fragment. Complex 1' is catalytically active in the dehydrogenation of formic acid to generate CO-free hydrogen in three consecutive runs as well as for the dehydrogenative coupling of alcohols, giving high conversions to different esters and outperforming structurally related PNN ligands lacking the NOH fragment. DFT calculations suggest more favorable release of H2 through reversible reactivity of the hydroxypyridine functionality relative to the phosphinomethyl side arm.
Collapse
Affiliation(s)
- Sandra
Y. de Boer
- Homogeneous, Supramolecular
& Bio-inspired Catalysis, van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Ties J. Korstanje
- Homogeneous, Supramolecular
& Bio-inspired Catalysis, van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Stefan R. La Rooij
- Homogeneous, Supramolecular
& Bio-inspired Catalysis, van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Rogier Kox
- Homogeneous, Supramolecular
& Bio-inspired Catalysis, van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Joost N. H. Reek
- Homogeneous, Supramolecular
& Bio-inspired Catalysis, van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Jarl Ivar van der Vlugt
- Homogeneous, Supramolecular
& Bio-inspired Catalysis, van ’t Hoff Institute for Molecular
Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
| |
Collapse
|
13
|
Wiedner ES, Chambers MB, Pitman CL, Bullock RM, Miller AJM, Appel AM. Thermodynamic Hydricity of Transition Metal Hydrides. Chem Rev 2016; 116:8655-92. [PMID: 27483171 DOI: 10.1021/acs.chemrev.6b00168] [Citation(s) in RCA: 315] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Transition metal hydrides play a critical role in stoichiometric and catalytic transformations. Knowledge of free energies for cleaving metal hydride bonds enables the prediction of chemical reactivity, such as for the bond-forming and bond-breaking events that occur in a catalytic reaction. Thermodynamic hydricity is the free energy required to cleave an M-H bond to generate a hydride ion (H(-)). Three primary methods have been developed for hydricity determination: the hydride transfer method establishes hydride transfer equilibrium with a hydride donor/acceptor pair of known hydricity, the H2 heterolysis method involves measuring the equilibrium of heterolytic cleavage of H2 in the presence of a base, and the potential-pKa method considers stepwise transfer of a proton and two electrons to give a net hydride transfer. Using these methods, over 100 thermodynamic hydricity values for transition metal hydrides have been determined in acetonitrile or water. In acetonitrile, the hydricity of metal hydrides spans a range of more than 50 kcal/mol. Methods for using hydricity values to predict chemical reactivity are also discussed, including organic transformations, the reduction of CO2, and the production and oxidation of hydrogen.
Collapse
Affiliation(s)
- Eric S Wiedner
- Pacific Northwest National Laboratory , Richland, Washington 99352, United States
| | - Matthew B Chambers
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | - Catherine L Pitman
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | - R Morris Bullock
- Pacific Northwest National Laboratory , Richland, Washington 99352, United States
| | - Alexander J M Miller
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599-3290, United States
| | - Aaron M Appel
- Pacific Northwest National Laboratory , Richland, Washington 99352, United States
| |
Collapse
|
14
|
Synthesis and (spectro)electrochemical investigations of coordinatively-saturated (cyclopentadienyl)ruthenium–Hantzsch pyridinium/dihydropyridine conjugates. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.01.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
15
|
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]
|
16
|
Pitman CL, Finster ONL, Miller AJM. Cyclopentadiene-mediated hydride transfer from rhodium complexes. Chem Commun (Camb) 2016; 52:9105-8. [DOI: 10.1039/c6cc00575f] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Attempts to generate a proposed rhodium hydride catalytic intermediate instead resulted in isolation of (Cp*H)Rh(bpy)Cl (1), a pentamethylcyclopentadiene complex, formed by C–H bond-forming reductive elimination from the fleeting rhodium hydride.
Collapse
Affiliation(s)
- C. L. Pitman
- Department of Chemistry
- University of North Carolina at Chapel Hill
- Chapel Hill
- USA
| | - O. N. L. Finster
- Department of Chemistry
- University of North Carolina at Chapel Hill
- Chapel Hill
- USA
| | - A. J. M. Miller
- Department of Chemistry
- University of North Carolina at Chapel Hill
- Chapel Hill
- USA
| |
Collapse
|
17
|
Horak KT, VanderVelde DG, Agapie T. Tuning of Metal Complex Electronics and Reactivity by Remote Lewis Acid Binding to π-Coordinated Pyridine Diphosphine Ligands. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00562] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kyle T. Horak
- Division of Chemistry and
Chemical Engineering, California Institute of Technology, 1200 East
California Boulevard MC 127-72, Pasadena, California 91125, United States
| | - David G. VanderVelde
- Division of Chemistry and
Chemical Engineering, California Institute of Technology, 1200 East
California Boulevard MC 127-72, Pasadena, California 91125, United States
| | - Theodor Agapie
- Division of Chemistry and
Chemical Engineering, California Institute of Technology, 1200 East
California Boulevard MC 127-72, Pasadena, California 91125, United States
| |
Collapse
|
18
|
Affiliation(s)
- Dong Wang
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| |
Collapse
|
19
|
Jongbloed LS, de Bruin B, Reek JNH, Lutz M, van der Vlugt JI. Facile Synthesis and Versatile Reactivity of an Unusual Cyclometalated Rhodium(I) Pincer Complex. Chemistry 2015; 21:7297-305. [DOI: 10.1002/chem.201406463] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 01/23/2015] [Indexed: 12/27/2022]
|
20
|
McSkimming A, Chan B, Bhadbhade MM, Ball GE, Colbran SB. Bio-Inspired Transition Metal-Organic Hydride Conjugates for Catalysis of Transfer Hydrogenation: Experiment and Theory. Chemistry 2014; 21:2821-34. [DOI: 10.1002/chem.201405129] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2014] [Indexed: 11/07/2022]
|
21
|
McSkimming A, Diachenko V, London R, Olrich K, Onie CJ, Bhadbhade MM, Bucknall MP, Read RW, Colbran SB. An Easy One-Pot Synthesis of Diverse 2,5-Di(2-pyridyl)pyrroles: A Versatile Entry Point to Metal Complexes of Functionalised, Meridial and Tridentate 2,5-Di(2-pyridyl)pyrrolato Ligands. Chemistry 2014; 20:11445-56. [DOI: 10.1002/chem.201402157] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Indexed: 11/11/2022]
|
22
|
Ezzedinloo L, Shrestha S, Bhadbhade M, Colbran S. Tri-μ-chlorido-bis-[(η(5)-penta-methyl-cyclo-penta-dien-yl)rhodium(III)] hexa-fluorido-phosphate from synchrotron radiation. Acta Crystallogr Sect E Struct Rep Online 2014; 70:m14-5. [PMID: 24855466 PMCID: PMC4029212 DOI: 10.1107/s1600536813032480] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Accepted: 11/29/2013] [Indexed: 11/29/2022]
Abstract
In the title complex salt, [{(η5-C5Me5)Rh}2(μ-Cl)3]PF6, the dinuclear, single-charged cation is formed by the cojoining of two classic (η5-C5Me5)RhCl3 ‘piano-stool’ units by bridging of the three choride ligand ‘legs’. The crystal structure shows several close H⋯F contacts between the hexafluoridophosphate counter-ions and the C5Me5 ligands.
Collapse
Affiliation(s)
- Lida Ezzedinloo
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Sumi Shrestha
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| | - Mohan Bhadbhade
- Mark Wainwright Analytical Centre, University of New South Wales, Sydney, NSW 2052, Australia
| | - Stephen Colbran
- School of Chemistry, University of New South Wales, Sydney, NSW 2052, Australia
| |
Collapse
|
23
|
McSkimming A, Colbran SB. The coordination chemistry of organo-hydride donors: new prospects for efficient multi-electron reduction. Chem Soc Rev 2013; 42:5439-88. [PMID: 23507957 DOI: 10.1039/c3cs35466k] [Citation(s) in RCA: 116] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
In biological reduction processes the dihydronicotinamides NAD(P)H often transfer hydride to an unsaturated substrate bound within an enzyme active site. In many cases, metal ions in the active site bind, polarize and thereby activate the substrate to direct attack by hydride from NAD(P)H cofactor. This review looks more widely at the metal coordination chemistry of organic donors of hydride ion--organo-hydrides--such as dihydronicotinamides, other dihydropyridines including Hantzsch's ester and dihydroacridine derivatives, those derived from five-membered heterocycles including the benzimidazolines and benzoxazolines, and all-aliphatic hydride donors such as hexadiene and hexadienyl anion derivatives. The hydride donor properties--hydricities--of organo-hydrides and how these are affected by metal ions are discussed. The coordination chemistry of organo-hydrides is critically surveyed and the use of metal-organo-hydride systems in electrochemically-, photochemically- and chemically-driven reductions of unsaturated organic and inorganic (e.g. carbon dioxide) substrates is highlighted. The sustainable electrocatalytic, photochemical or chemical regeneration of organo-hydrides such as NAD(P)H, including for driving enzyme-catalysed reactions, is summarised and opportunities for development are indicated. Finally, new prospects are identified for metal-organo-hydride systems as catalysts for organic transformations involving 'hydride-borrowing' and for sustainable multi-electron reductions of unsaturated organic and inorganic substrates directly driven by electricity or light or by renewable reductants such as formate/formic acid.
Collapse
Affiliation(s)
- Alex McSkimming
- School of Chemistry, The University of New South Wales, Sydney, NSW 2052, Australia
| | | |
Collapse
|