1
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Pandey PK, Patra M, Ranjan P, Kumar Pal N, Choudhary S, Bera JK. A Single Terminal [Ni II-OH] Catalyst for Direct Julia-Type Olefination and α-Alkylation Involving Sulfones and Alcohols. Chemistry 2024; 30:e202400337. [PMID: 38644351 DOI: 10.1002/chem.202400337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 04/08/2024] [Accepted: 04/21/2024] [Indexed: 04/23/2024]
Abstract
A terminal [NiII-OH] complex 1, supported by triflamide-functionalized NHC ligands, showed divergent reactivity for the reaction of sulfone with alcohol, contingent on base concentration, temperature, and time. Julia-type olefination of alcohols with sulfones was achieved using one equiv. of base, whereas lowering base loading to 0.5 equiv. afforded α-alkylated sulfones. Besides excellent substrate scope and selectivity, biologically active stilbene derivatives DMU-212, pinosylvin, resveratrol, and piceatannol were synthesized in high yield under Julia-type olefination conditions. An extensive array of controlled experiments and DFT calculations provide valuable insight on the reaction pathway.
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Affiliation(s)
- Prabhakar K Pandey
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Moumita Patra
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Prabodh Ranjan
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Nilay Kumar Pal
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Sanjay Choudhary
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Jitendra K Bera
- Department of Chemistry and Centre for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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2
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Lizana I, Bernales G, Pecchi G, Delgado EJ. A Theoretical Study on the Mechanisms Involved in Catalytic Dehydrogenation and Dehydration of Isopropanol on SrTiO 3. Chemphyschem 2024; 25:e202300018. [PMID: 37903732 DOI: 10.1002/cphc.202300018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 11/01/2023]
Abstract
The dehydrogenation and dehydration of isopropanol on the SrO and TiO2 terminated surfaces, of the SrTiO3 perovskite, is addressed by periodic DFT calculations in order to shed light on the involved mechanisms. The results show that the dehydrogenation occurs through a mechanism involving the dissociative adsorption of the alcohol on the SrO terminated surface, followed the nucleophilic attack of a hydride species on the previously adsorbed hydrogen atom to form molecular hydrogen and the corresponding carbonyl compound. The dehydration instead occurs by the molecular adsorption of the alcohol on the TiO2 terminated surface, followed by various possible E1 elimination pathways leading to the formation of the corresponding alkene and a water molecule. The article reports a thorough study on the involved mechanisms, including identification of the transition states and intermediates along the reaction paths, and evaluation of the respective activation barriers, as well. Thus, this article provides significant insights about the mechanisms of dehydrogenation and dehydration of isopropanol on the SrTiO3 , not reported earlier in literature. The calculated barrier energies are in good agreement with experimental values.
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Affiliation(s)
- Ignacio Lizana
- Department of Physical Chemistry, Faculty of Chemical Sciences, Universidad de Concepción, Edmundo Larenas 129, Concepción, Chile
- Millennium Nucleus on Catalytic Processes towards Sustainable Chemistry (CSC)
| | - Gabriel Bernales
- Department of Physical Chemistry, Faculty of Chemical Sciences, Universidad de Concepción, Edmundo Larenas 129, Concepción, Chile
- Millennium Nucleus on Catalytic Processes towards Sustainable Chemistry (CSC)
| | - Gina Pecchi
- Department of Physical Chemistry, Faculty of Chemical Sciences, Universidad de Concepción, Edmundo Larenas 129, Concepción, Chile
- Millennium Nucleus on Catalytic Processes towards Sustainable Chemistry (CSC)
| | - Eduardo J Delgado
- Department of Physical Chemistry, Faculty of Chemical Sciences, Universidad de Concepción, Edmundo Larenas 129, Concepción, Chile
- Millennium Nucleus on Catalytic Processes towards Sustainable Chemistry (CSC)
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3
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De S, Ranjan P, Chaurasia V, Pal S, Pal S, Pandey P, Bera JK. Synchronous Proton-Hydride Transfer by a Pyrazole-Functionalized Protic Mn(I) Complex in Catalytic Alcohol Dehydrogenative Coupling. Chemistry 2023; 29:e202301758. [PMID: 37490592 DOI: 10.1002/chem.202301758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/23/2023] [Accepted: 07/25/2023] [Indexed: 07/27/2023]
Abstract
A series of Mn(I) complexes Mn(L1 )(CO)3 Br, Mn(L2 )(CO)3 Br, Mn(L1 )(CO)3 (OAc) and Mn(L3 )(CO)3 Br [L1 =2-(5-tert-butyl-1H-pyrazol-3-yl)-1,8-naphthyridine, L2 =2-(5-tert-butyl-1H-pyrazol-3-yl)pyridine, L3 =2-(5-tert-butyl-1-methyl-1H-pyrazol-3-yl)-1,8-naphthyridine] were synthesized and fully characterized. The acid-base equilibrium between the pyrazole and the pyrazolato forms of Mn(L1 )(CO)3 Br was studied by 1 H NMR and UV-vis spectra. These complexes are screened as catalysts for acceptorless dehydrogenative coupling (ADC) of primary alcohols and aromatic diamines for the synthesis of benzimidazole and quinoline derivatives with the release of H2 and H2 O as byproducts. The protic complex Mn(L1 )(CO)3 Br shows the highest catalytic activity for the synthesis of 2-substituted benzimidazole derivatives with broad substrate scope, whereas a related complex [Mn(L3 )(CO)3 Br], which is devoid of the proton responsive β-NH unit, shows significantly reduced catalytic efficiency validating the crucial role of the β-NH functionality for the alcohol dehydrogenation reactions. Control experiments, kinetic and deuterated studies, and density functional theory (DFT) calculations reveal a synchronous hydride-proton transfer by the metal-ligand construct in the alcohol dehydrogenation step.
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Affiliation(s)
- Subhabrata De
- Department of Chemistry and, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Prabodh Ranjan
- Department of Chemistry and, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Vishal Chaurasia
- Department of Chemistry and, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Sourav Pal
- Department of Chemistry and, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Saikat Pal
- Department of Chemistry and, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Pragati Pandey
- Department of Chemistry and, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Jitendra K Bera
- Department of Chemistry and, Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
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4
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Devi P, Kannan M, Kiran, Virender, Kumar A, Muthaiah S. Dehydrogenative oxidation of alcohols using ruthenium (II) complexes. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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5
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Ribeiro Gouveia L, Ison EA. Well-Defined ENENES Re and Mn Complexes and Their Application in Catalysis: The Role of Potassium tert-Butoxide. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Liana Ribeiro Gouveia
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204, United States
| | - Elon A. Ison
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North Carolina 27695-8204, United States
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6
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Yadav D, Singh RK, Misra S, Singh AK. Ancillary Ligand Effects and Microwave‐Assisted Enhancement on the Catalytic Performance of Cationic Ruthenium (II)‐CNC Pincer Complexes for Acceptorless Alcohol Dehydrogenation. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dibya Yadav
- Department of Chemistry Indian Institute of Technology Indore Indore India
| | - Rahul Kumar Singh
- Department of Chemistry Indian Institute of Technology Indore Indore India
| | - Shilpi Misra
- Department of Chemistry Indian Institute of Technology Indore Indore India
| | - Amrendra K. Singh
- Department of Chemistry Indian Institute of Technology Indore Indore India
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7
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N E ASWATHIRAVINDRAN, Sindhuja D, Bhuvanesh N, Karvembu R. Synthesis of 1,2‐disubstituted benzimidazoles via acceptorless dehydrogenative coupling using Ru(II)‐arene catalysts containing ferrocene thiosemicarbazone. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- ASWATHI RAVINDRAN N E
- National Institute of Technology Tiruchirappalli Chemistry 620015 Tiruchirappalli INDIA
| | | | - Nattamai Bhuvanesh
- Texas A&M University College Station: Texas A&M University Chemistry INDIA
| | - R Karvembu
- National Institute of Technology Department of Chemistry Tanjore Road 620015 Tiruchirappalli INDIA
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8
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Borthakur I, Sau A, Kundu S. Cobalt-catalyzed dehydrogenative functionalization of alcohols: Progress and future prospect. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214257] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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9
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Trodden EC, Delve MP, Luz C, Newland RJ, Andresen JM, Mansell SM. A ruthenium cis-dihydride with 2-phosphinophosphinine ligands catalyses the acceptorless dehydrogenation of benzyl alcohol. Dalton Trans 2021; 50:13407-13411. [PMID: 34477181 DOI: 10.1039/d1dt02508b] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The first ruthenium dihydride complex featuring a phosphinine ligand cis-[Ru(H)2(2-PPh2-3-Me-6-SiMe3-PC5H2)2] was synthesised exclusively as the cis-isomer. When formed in situ from the reaction of cis-[Ru(Cl)2(2-PPh2-3-Me-6-SiMe3-PC5H2)2] with two equivalents of Na[BHEt3], as demonstrated by 31P and 1H NMR spectroscopy, the catalysed acceptorless dehydrogenation of benzyl alcohol was observed leading to benzyl benzoate in up to 70% yield.
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Affiliation(s)
- Elizabeth C Trodden
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh, EH14 4AS, UK.,Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - Matthew P Delve
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - Christian Luz
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - Robert J Newland
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
| | - John M Andresen
- Research Centre for Carbon Solutions (RCCS), Heriot-Watt University, Edinburgh, EH14 4AS, UK
| | - Stephen M Mansell
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.
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10
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Maity R, Birenheide BS, Breher F, Sarkar B. Cooperative Effects in Multimetallic Complexes Applied in Catalysis. ChemCatChem 2021. [DOI: 10.1002/cctc.202001951] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ramananda Maity
- Department of Chemistry University of Calcutta 92, A. P. C. Road Kolkata 700009 India
| | - Bernhard S. Birenheide
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology (KIT) Engesserstr. 15 76131 Karlsruhe Germany
| | - Frank Breher
- Institute of Inorganic Chemistry Karlsruhe Institute of Technology (KIT) Engesserstr. 15 76131 Karlsruhe Germany
| | - Biprajit Sarkar
- Lehrstuhl für Anorganische Koordinationschemie Institut für Anorganische Chemie Universität Stuttgart Pfaffenwaldring 55 D 70569 Stuttgart Germany
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11
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Kökdemir B, Acaralı N. A novel study on CHEMCAD simulation of isopropyl alcohol dehydrogenation process development. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100035] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Abstract
Visible light promoted synthetic routes of quinolines using different strategies are hereby documented.
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Affiliation(s)
- Ajay Kumar Dhiya
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Aparna Monga
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
| | - Anuj Sharma
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee-247667
- India
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13
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Yazdani E, Heydari A. Acceptorless dehydrogenative oxidation of primary alcohols to carboxylic acids and reduction of nitroarenes via hydrogen borrowing catalyzed by a novel nanomagnetic silver catalyst. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121453] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Abstract
Our planet urgently needs sustainable solutions to alleviate the anthropogenic global warming and climate change. Homogeneous catalysis has the potential to play a fundamental role in this process, providing novel, efficient, and at the same time eco-friendly routes for both chemicals and energy production. In particular, pincer-type ligation shows promising properties in terms of long-term stability and selectivity, as well as allowing for mild reaction conditions and low catalyst loading. Indeed, pincer complexes have been applied to a plethora of sustainable chemical processes, such as hydrogen release, CO2 capture and conversion, N2 fixation, and biomass valorization for the synthesis of high-value chemicals and fuels. In this work, we show the main advances of the last five years in the use of pincer transition metal complexes in key catalytic processes aiming for a more sustainable chemical and energy production.
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15
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Hazra S, Malik E, Nair A, Tiwari V, Dolui P, Elias AJ. Catalytic Oxidation of Alcohols and Amines to Value‐Added Chemicals using Water as the Solvent. Chem Asian J 2020; 15:1916-1936. [DOI: 10.1002/asia.202000299] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 04/20/2020] [Indexed: 01/12/2023]
Affiliation(s)
- Susanta Hazra
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Ekta Malik
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Abhishek Nair
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Vikas Tiwari
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Pritam Dolui
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
| | - Anil J. Elias
- Department of ChemistryIndian Institute of Technology, Delhi Hauz Khas New Delhi 110016 India
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16
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Chen W, Egly J, Poblador-Bahamonde AI, Maisse-Francois A, Bellemin-Laponnaz S, Achard T. Synthesis, characterization, catalytic and biological application of half-sandwich ruthenium complexes bearing hemilabile (κ2-C,S)-thioether-functionalised NHC ligands. Dalton Trans 2020; 49:3243-3252. [PMID: 32096513 DOI: 10.1039/c9dt04825a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A series of cationic Ru(ii)(η6-p-cymene) complexes with thioether-functionalised N-heterocyclic carbene ligands have been prepared and fully characterized. Steric and electronic influence of the R thioether substituent on the coordination of the sulfur atom was investigated. The molecular structure of three of them has been determined by means of X-ray diffractrometry and confirmed the bidentate (κ2-C,S) coordination mode of the ligand. Interestingly, only a single diastereomer, as an enantiomeric couple, was observed in the solid state for complexes 1c, 1i and 1j. DFT calculations established a low energy inversion barrier between the two diastereomers through a sulfur pyramidal inversion pathway with R donating group while a dissociative/associative mechanism is more likely with R substituents that contain electron withdrawing group, thus suggesting that the only species observed by the 1H-NMR correspond to an average resonance position of a fluxional mixtures of isomers. All these complexes were found to catalyse the oxydant-free double dehydrogenation of primary amine into nitrile. Ru complex bearing NHC-functionalised S-tBu group was further investigated in a wide range of amines and was found more selective for alkyl amine substrates than for benzylamine derivatives. Finally, preliminary results of the biological effects on various human cancer cells of four selected Ru complexes are reported.
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Affiliation(s)
- Weiguang Chen
- Institut de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg-CNRS UMR7504, 23 rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France.
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17
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Tang Y, Meador RIL, Malinchak CT, Harrison EE, McCaskey KA, Hempel MC, Funk TW. (Cyclopentadienone)iron-Catalyzed Transfer Dehydrogenation of Symmetrical and Unsymmetrical Diols to Lactones. J Org Chem 2020; 85:1823-1834. [PMID: 31880449 DOI: 10.1021/acs.joc.9b01884] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Air-stable iron carbonyl compounds bearing cyclopentadienone ligands with varying substitution were explored as catalysts in dehydrogenative diol lactonization reactions using acetone as both the solvent and hydrogen acceptor. Two catalysts with trimethylsilyl groups in the 2- and 5-positions, [2,5-(SiMe3)2-3,4-(CH2)4(η4-C4C═O)]Fe(CO)3 (1) and [2,5-(SiMe3)2-3,4-(CH2)3(η4-C4C═O)]Fe(CO)3 (2), were found to be the most active, with 2 being the most selective in the lactonization of diols containing both primary and secondary alcohols. Lactones containing five-, six-, and seven-membered rings were successfully synthesized, and no over-oxidations to carboxylic acids were detected. The lactonization of unsymmetrical diols containing two primary alcohols occurred with catalyst 1, but selectivity was low based on alcohol electronics and modest based on alcohol sterics. Evidence for a transfer dehydrogenation mechanism was found, and insight into the origin of selectivity in the lactonization of 1°/2° diols was obtained. Additionally, spectroscopic evidence for a trimethylamine-ligated iron species formed in solution during the reaction was discovered.
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Affiliation(s)
- Yidan Tang
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Rowan I L Meador
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Casina T Malinchak
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Emily E Harrison
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Kimberly A McCaskey
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Melanie C Hempel
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
| | - Timothy W Funk
- Department of Chemistry , Gettysburg College , Gettysburg , Pennsylvania 17325 , United States
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18
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Laga SM, Townsend TM, O'Connor AR, Mayer JM. Cooperation of cerium oxide nanoparticles and soluble molecular catalysts for alcohol oxidation. Inorg Chem Front 2020. [DOI: 10.1039/c9qi01640f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nano-cerium oxide and organometallic catalysts cooperate in anaerobic and aerobic alcohol oxidations.
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Affiliation(s)
| | - Tanya M. Townsend
- Department of Chemistry
- Yale University
- New Haven
- USA
- Department of Chemistry
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19
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Synthesis of quinolines via acceptorless dehydrogenative tandem cyclization of 2-amionbenzyl alcohol with alcohols using magnetic CuNiFeO nanocatalyst. MOLECULAR CATALYSIS 2019. [DOI: 10.1016/j.mcat.2019.110565] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Achard T, Egly J, Sigrist M, Maisse-François A, Bellemin-Laponnaz S. Easy Ruthenium-Catalysed Oxidation of Primary Amines to Nitriles under Oxidant-Free Conditions. Chemistry 2019; 25:13271-13274. [PMID: 31287194 DOI: 10.1002/chem.201902557] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/03/2019] [Indexed: 12/25/2022]
Abstract
A dehydrogenation of primary amine to give the corresponding nitrile under oxidant- and base-free conditions catalysed by simple [Ru(p-cym)Cl2 ]2 with no extra ligand is reported. The system is highly selective for alkyl amines, whereas benzylamine derivatives gave the nitrile product together with the imine in a ratio ranging from 14:1 to 4:1 depending on the substrate. Preliminary mechanistic investigations have been performed to identify the key factors that govern the selectivity.
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Affiliation(s)
- Thierry Achard
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR-7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | - Julien Egly
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR-7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | - Michel Sigrist
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR-7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | - Aline Maisse-François
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR-7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
| | - Stéphane Bellemin-Laponnaz
- Département des Matériaux Organiques, Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), Université de Strasbourg, CNRS UMR-7504, 23 rue du Loess, BP 43, 67034, Strasbourg Cedex 2, France
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21
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Advances in Homogeneous Catalysis for Low Temperature Methanol Reforming in the Context of the Methanol Economy. Top Catal 2018. [DOI: 10.1007/s11244-018-0963-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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22
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23
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Hu P, Milstein D. Conversion of Alcohols to Carboxylates Using Water and Base with H2 Liberation. TOP ORGANOMETAL CHEM 2018. [DOI: 10.1007/3418_2018_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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24
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Jaiswal G, Landge VG, Jagadeesan D, Balaraman E. Iron-based nanocatalyst for the acceptorless dehydrogenation reactions. Nat Commun 2017. [DOI: 10.1038/s41467-017-01603-3 pmid: 29247179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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25
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Iron-based nanocatalyst for the acceptorless dehydrogenation reactions. Nat Commun 2017; 8:2147. [PMID: 29247179 PMCID: PMC5732290 DOI: 10.1038/s41467-017-01603-3] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 10/02/2017] [Indexed: 01/02/2023] Open
Abstract
Development of sustainable catalytic systems for fundamentally important synthetic transformations and energy storage applications is an intellectually stimulating challenge. Catalytic dehydrogenation of feedstock chemicals, such as alcohols and amines to value-added products with the concomitant generation of dihydrogen is of much interest in the context of hydrogen economy and is an effective alternative to the classical oxidation reactions. Despite a number of homogeneous catalysts being identified for the acceptorless dehydrogenation, the use of high price and limited availability of precious metals and poor recovery of the catalyst have spurred interest in catalysis with more earth-abundant alternatives, especially iron. However, no report has described a reusable iron-based heterogeneous catalyst for oxidant-free and acceptorless dehydrogenation reactions. Here we replace expensive noble metal catalysts with an inexpensive, benign, and sustainable nanoscale iron catalyst for the efficient acceptorless dehydrogenation of N-heterocycles and alcohols with liberation of hydrogen gas. Catalytic acceptorless dehydrogenation reactions provide a sustainable route to valuable products and hydrogen fuel. Here, the authors show a recyclable iron catalyst that is highly active in the acceptorless dehydrogenation of a wide range of N-heterocycles and alcohols.
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26
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Labes R, Battilocchio C, Mateos C, Cumming GR, de Frutos O, Rincón JA, Binder K, Ley SV. Chemoselective Continuous Ru-Catalyzed Hydrogen-Transfer Oppenauer-Type Oxidation of Secondary Alcohols. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00190] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ricardo Labes
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Claudio Battilocchio
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Carlos Mateos
- Centro de Investigación
Lilly S.A., Avda. de la Industria 30, Alcobendas-Madrid 28108, Spain
| | - Graham R. Cumming
- Centro de Investigación
Lilly S.A., Avda. de la Industria 30, Alcobendas-Madrid 28108, Spain
| | - Oscar de Frutos
- Centro de Investigación
Lilly S.A., Avda. de la Industria 30, Alcobendas-Madrid 28108, Spain
| | - Juan A. Rincón
- Centro de Investigación
Lilly S.A., Avda. de la Industria 30, Alcobendas-Madrid 28108, Spain
| | - Kellie Binder
- Department
of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
| | - Steven V. Ley
- Innovative
Technology Centre, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, U.K
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27
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Bauer JO, Chakraborty S, Milstein D. Manganese-Catalyzed Direct Deoxygenation of Primary Alcohols. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01729] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Jonathan O. Bauer
- Department of Organic Chemistry, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - Subrata Chakraborty
- Department of Organic Chemistry, The Weizmann Institute of Science, 76100 Rehovot, Israel
| | - David Milstein
- Department of Organic Chemistry, The Weizmann Institute of Science, 76100 Rehovot, Israel
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