1
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Ansari MF, Maurya AK, Kumar A, Elangovan S. Manganese-catalyzed C-C and C-N bond formation with alcohols via borrowing hydrogen or hydrogen auto-transfer. Beilstein J Org Chem 2024; 20:1111-1166. [PMID: 38887586 PMCID: PMC11181258 DOI: 10.3762/bjoc.20.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2024] [Accepted: 04/24/2024] [Indexed: 06/20/2024] Open
Abstract
Transition-metal-mediated "borrowing hydrogen" also known as hydrogen auto-transfer reactions allow the sustainable construction of C-C and C-N bonds using alcohols as hydrogen donors. In recent years, manganese complexes have been explored as efficient catalysts in these reactions. This review highlights the significant progress made in manganese-catalyzed C-C and C-N bond-formation reactions via hydrogen auto-transfer, emphasizing the importance of this methodology and manganese catalysts in sustainable synthesis strategies.
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Affiliation(s)
- Mohd Farhan Ansari
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Atul Kumar Maurya
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Abhishek Kumar
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
| | - Saravanakumar Elangovan
- Department of Chemistry, Indian Institute of Technology (BHU), Varanasi, Uttar Pradesh 221005, India
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2
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Cook A, Newman SG. Alcohols as Substrates in Transition-Metal-Catalyzed Arylation, Alkylation, and Related Reactions. Chem Rev 2024; 124:6078-6144. [PMID: 38630862 DOI: 10.1021/acs.chemrev.4c00094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/19/2024]
Abstract
Alcohols are abundant and attractive feedstock molecules for organic synthesis. Many methods for their functionalization require them to first be converted into a more activated derivative, while recent years have seen a vast increase in the number of complexity-building transformations that directly harness unprotected alcohols. This Review discusses how transition metal catalysis can be used toward this goal. These transformations are broadly classified into three categories. Deoxygenative functionalizations, representing derivatization of the C-O bond, enable the alcohol to act as a leaving group toward the formation of new C-C bonds. Etherifications, characterized by derivatization of the O-H bond, represent classical reactivity that has been modernized to include mild reaction conditions, diverse reaction partners, and high selectivities. Lastly, chain functionalization reactions are described, wherein the alcohol group acts as a mediator in formal C-H functionalization reactions of the alkyl backbone. Each of these three classes of transformation will be discussed in context of intermolecular arylation, alkylation, and related reactions, illustrating how catalysis can enable alcohols to be directly harnessed for organic synthesis.
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Affiliation(s)
- Adam Cook
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
| | - Stephen G Newman
- Centre for Catalysis Research and Innovation, Department of Chemistry and Biomolecular Sciences, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5, Canada
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3
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Bera S, Kabadwal LM, Banerjee D. Harnessing alcohols as sustainable reagents for late-stage functionalisation: synthesis of drugs and bio-inspired compounds. Chem Soc Rev 2024; 53:4607-4647. [PMID: 38525675 DOI: 10.1039/d3cs00942d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Alcohol is ubiquitous with unparalleled structural diversity and thus has wide applications as a native functional group in organic synthesis. It is highly prevalent among biomolecules and offers promising opportunities for the development of chemical libraries. Over the last decade, alcohol has been extensively used as an environmentally friendly chemical for numerous organic transformations. In this review, we collectively discuss the utilisation of alcohol from 2015 to 2023 in various organic transformations and their application toward intermediates of drugs, drug derivatives and natural product-like molecules. Notable features discussed are as follows: (i) sustainable approaches for C-X alkylation (X = C, N, or O) including O-phosphorylation of alcohols, (ii) newer strategies using methanol as a methylating reagent, (iii) allylation of alkenes and alkynes including allylic trifluoromethylations, (iv) alkenylation of N-heterocycles, ketones, sulfones, and ylides towards the synthesis of drug-like molecules, (v) cyclisation and annulation to pharmaceutically active molecules, and (vi) coupling of alcohols with aryl halides or triflates, aryl cyanide and olefins to access drug-like molecules. We summarise the synthesis of over 100 drugs via several approaches, where alcohol was used as one of the potential coupling partners. Additionally, a library of molecules consisting over 60 fatty acids or steroid motifs is documented for late-stage functionalisation including the challenges and opportunities for harnessing alcohols as renewable resources.
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Affiliation(s)
- Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India.
| | - Lalit Mohan Kabadwal
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India.
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India.
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4
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Bansal S, Punji B. Nickel-Catalyzed Chemodivergent Coupling of Alcohols: Efficient Routes to Access α,α-Disubstituted Ketones and α-Substituted Chalcones. Chemistry 2024:e202304082. [PMID: 38231839 DOI: 10.1002/chem.202304082] [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: 12/07/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 01/19/2024]
Abstract
Chemodivergent (de)hydrogenative coupling of primary and secondary alcohols is achieved utilizing an inexpensive nickel catalyst, (6-OH-bpy)NiCl2 . This protocol demonstrates the synthesis of branched carbonyl compounds, α,α-disubstituted ketones, and α-substituted chalcones via borrowing hydrogen strategy and acceptorless dehydrogenative coupling, respectively. A wide range of aryl-based secondary alcohols are coupled with various primary alcohols in this tandem dehydrogenation/hydrogenation reaction. The nickel catalyst, along with KOt Bu or K2 CO3 , governed the selectivity for the formation of branched saturated ketones or chalcones. A preliminary mechanistic investigation confirms the reversible dehydrogenation of alcohols to carbonyls via metal-ligand cooperation (MLC) and the involvement of radical intermediates during the reaction.
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Affiliation(s)
- Sadhna Bansal
- Organometallic Synthesis and Catalysis Lab, Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab, Organic Chemistry Division, CSIR-National Chemical Laboratory (CSIR-NCL), Dr. Homi Bhabha Road, Pune, 411 008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201 002, India
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5
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Bera K, Mukherjee A. Chemoselective α-Alkylation of Nitriles with Primary Alcohols by Manganese(I)-Catalysis. Chem Asian J 2023:e202300157. [PMID: 37156742 DOI: 10.1002/asia.202300157] [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: 02/22/2023] [Revised: 04/12/2023] [Indexed: 05/10/2023]
Abstract
A sustainable and easy-to-use protocol for the alkylation of aryl nitriles with the earth-abundant manganese(I) catalyst is presented. The alkylation reaction employs readily available nitriles and naturally abundant alcohols as the coupling partners. The reaction proceeds chemoselectively and encompasses a broad substrate scope with good to excellent yields. The catalytic reaction yields selectively α-branched nitriles and water as the sole byproduct. Experimental studies were executed to understand the mechanism of the catalytic reaction.
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Affiliation(s)
- Krishanu Bera
- Department of Chemistry, Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur, 492015, Chhattisgarh, India
| | - Arup Mukherjee
- Department of Chemistry, Indian Institute of Technology Bhilai, GEC Campus, Sejbahar, Raipur, 492015, Chhattisgarh, India
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6
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Metal-free oxidative radical arylation of styrene with anilines to access 2-arylacetophenones and selective oxidation of amine. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Manojveer S, Garg NK, Gul Z, Kanwal A, Goriya Y, Johnson MT. Ligand-Promoted [Pd]-Catalyzed α-Alkylation of Ketones through a Borrowing-Hydrogen Approach. ChemistryOpen 2023; 12:e202200245. [PMID: 36592045 PMCID: PMC9807026 DOI: 10.1002/open.202200245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/02/2022] [Indexed: 01/03/2023] Open
Abstract
A new class of palladium complexes bearing bidentate 2-hydroxypyridine based ligands have been prepared and fully characterized. The applications of these new complexes towards ketone alkylation reactions with alcohols through a metal-ligand cooperative borrowing-hydrogen (BH) process were demonstrated.
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Affiliation(s)
- Seetharaman Manojveer
- Centre for Analysis and SynthesisDepartment of ChemistryLund UniversityP. O. Box 124221 00LundSweden
| | - Nitish K. Garg
- Centre for Analysis and SynthesisDepartment of ChemistryLund UniversityP. O. Box 124221 00LundSweden
| | - Zarif Gul
- Centre for Analysis and SynthesisDepartment of ChemistryLund UniversityP. O. Box 124221 00LundSweden
| | - Ayesha Kanwal
- Centre for Analysis and SynthesisDepartment of ChemistryLund UniversityP. O. Box 124221 00LundSweden
| | - Yogesh Goriya
- Centre for Analysis and SynthesisDepartment of ChemistryLund UniversityP. O. Box 124221 00LundSweden
| | - Magnus T. Johnson
- Centre for Analysis and SynthesisDepartment of ChemistryLund UniversityP. O. Box 124221 00LundSweden
- Perstorp ABPerstorp Industrial Park284 80PerstorpSweden
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8
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Genç S, Arslan B, Gülcemal D, Gülcemal S, Günnaz S. Nickel-catalyzed alkylation of ketones and nitriles with primary alcohols. Org Biomol Chem 2022; 20:9753-9762. [PMID: 36448637 DOI: 10.1039/d2ob01787c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Nickel(II)-salen or nickel(II)-salphen catalyzed α-alkylation of ketones and nitriles with primary alcohols is reported. Various α-alkylated ketones and nitriles were obtained in high yields through a borrowing hydrogen strategy by using 1-3 mol% of nickel catalyst and a catalytic amount of NaOH (5-10 mol%) under aerobic conditions.
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Affiliation(s)
- Sertaç Genç
- Ege University, Department of Chemistry, 35100 Bornova, Izmir, Turkey.
| | - Burcu Arslan
- Ege University, Department of Chemistry, 35100 Bornova, Izmir, Turkey.
| | - Derya Gülcemal
- Ege University, Department of Chemistry, 35100 Bornova, Izmir, Turkey.
| | - Süleyman Gülcemal
- Ege University, Department of Chemistry, 35100 Bornova, Izmir, Turkey.
| | - Salih Günnaz
- Ege University, Department of Chemistry, 35100 Bornova, Izmir, Turkey.
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9
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Li X, Shao X, Zhang X, Zhao Q, Lai H, Cui B, Shao Z, Zhao M. Synthesizing carbonyl furan derivatives by a dehydrogenative coupling reaction. Org Biomol Chem 2022; 20:6542-6546. [PMID: 35912951 DOI: 10.1039/d2ob01130a] [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
Herein, we report the development of an efficient green procedure for synthesizing carbonyl furan derivatives by dehydrogenative coupling of furfuryl alcohol with carbonyl compounds. The reaction is performed under mild reaction conditions in the presence of iPrPNP-Mn as the catalyst and a weak base (Cs2CO3). A range of ketones and aldehydes were efficiently diversified with furfuryl alcohol to afford furyl-substituted saturated ketones, and α,β-unsaturated ketones and aldehydes in good isolated yields.
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Affiliation(s)
- Xinyan Li
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Xiulan Shao
- Xi'an Urban Drainage Monitoring Station, Xi'an 710016, China
| | - Xiaoyu Zhang
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Qiaoyue Zhao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Hongtao Lai
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Bing Cui
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Zhihui Shao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
| | - Mingqin Zhao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, China.
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10
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Yang DY, Wang H, Chang CR. Recent Advances for Alkylation of Ketones and Secondary Alcohols using Alcohols in Homogeneous Catalysis. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Maji A, Gupta S, Maji M, Kundu S. Well-Defined Phosphine-Free Manganese(II)-Complex-Catalyzed Synthesis of Quinolines, Pyrroles, and Pyridines. J Org Chem 2022; 87:8351-8367. [PMID: 35726206 DOI: 10.1021/acs.joc.2c00167] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Herein, we report a simple, phosphine-free, and inexpensive catalytic system based on a manganese(II) complex for synthesizing different important N-heterocycles such as quinolines, pyrroles, and pyridines from amino alcohols and ketones. Several control experiments, kinetic studies, and DFT calculations were carried out to support the plausible reaction mechanism. We also detected two potential intermediates in the catalytic cycle using ESI-MS analysis. Based on these studies, a metal-ligand cooperative mechanism was proposed.
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Affiliation(s)
- Ankur Maji
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Shivangi Gupta
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Milan Maji
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
| | - Sabuj Kundu
- Department of Chemistry, Indian Institute of Technology, Kanpur, Uttar Pradesh 208016, India
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12
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Sharma R, Mondal A, Samanta A, Biswas N, Das B, Srimani D. Well‐Defined Ni−SNS Complex Catalysed Borrowing Hydrogenative α‐Alkylation of Ketones and Dehydrogenative Synthesis of Quinolines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rahul Sharma
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Avijit Mondal
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Arup Samanta
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Nandita Biswas
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Babulal Das
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
| | - Dipankar Srimani
- Department of Chemistry Indian Institute of Technology-Guwahati Kamrup Assam 781039 India
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13
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Das K, Waiba S, Jana A, Maji B. Manganese-catalyzed hydrogenation, dehydrogenation, and hydroelementation reactions. Chem Soc Rev 2022; 51:4386-4464. [PMID: 35583150 DOI: 10.1039/d2cs00093h] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The emerging field of organometallic catalysis has shifted towards research on Earth-abundant transition metals due to their ready availability, economic advantage, and novel properties. In this case, manganese, the third most abundant transition-metal in the Earth's crust, has emerged as one of the leading competitors. Accordingly, a large number of molecularly-defined Mn-complexes has been synthesized and employed for hydrogenation, dehydrogenation, and hydroelementation reactions. In this regard, catalyst design is based on three pillars, namely, metal-ligand bifunctionality, ligand hemilability, and redox activity. Indeed, the developed catalysts not only differ in the number of chelating atoms they possess but also their working principles, thereby leading to different turnover numbers for product molecules. Hence, the critical assessment of molecularly defined manganese catalysts in terms of chelating atoms, reaction conditions, mechanistic pathway, and product turnover number is significant. Herein, we analyze manganese complexes for their catalytic activity, versatility to allow multiple transformations and their routes to convert substrates to target molecules. This article will also be helpful to get significant insight into ligand design, thereby aiding catalysis design.
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Affiliation(s)
- Kuhali Das
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Satyadeep Waiba
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Akash Jana
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
| | - Biplab Maji
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Mohanpur, 741246, India.
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14
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Towards ligand simplification in manganese-catalyzed hydrogenation and hydrosilylation processes. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214421] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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15
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He L, Liang C, Ouyang Y, Li L, Guo Y, Zhang P, Li W. α-Functionalization of ketones promoted by sunlight and heterogeneous catalysis in the aqueous phase. Org Biomol Chem 2022; 20:790-795. [PMID: 34994749 DOI: 10.1039/d1ob02249k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Herein, a protocol that combines heterogeneous catalysis and solar photocatalysis for the regioselective α-substitution of asymmetric ketones with quinoxalinones has been reported. The result indicates that the reaction is more likely to occur on the α-carbon. This strategy provides a green and efficient way for the α-functionalization of ketones. A singlet oxygen involved mechanism is suggested for the transformation.
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Affiliation(s)
- Lei He
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Chenfeng Liang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Yani Ouyang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Lin Li
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Yirui Guo
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
| | - Wanmei Li
- College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology of Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, China.
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16
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Dey G, Saifi S, Sk M, Sinha ASK, Banerjee D, Aijaz A. Immobilizing a homogeneous manganese catalyst into MOF pores for α-alkylation of methylene ketones with alcohols. Dalton Trans 2022; 51:17973-17977. [DOI: 10.1039/d2dt02629e] [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
An encapsulation strategy via nano-confinement of a homogeneous manganese–phenanthroline complex into MOF pores selectively produced functionalized branched ketones.
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Affiliation(s)
- Gargi Dey
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology (RGIPT) – Jais, Amethi, Uttar Pradesh – 229304, India
| | - Shadab Saifi
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology (RGIPT) – Jais, Amethi, Uttar Pradesh – 229304, India
| | - Motahar Sk
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247663, Uttarakhand, India
| | - A. S. K. Sinha
- Department of Chemical Engineering & Biochemical Engineering, Rajiv Gandhi Institute of Petroleum Technology (RGIPT), Jais, Amethi, Uttar Pradesh – 229304, India
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247663, Uttarakhand, India
| | - Arshad Aijaz
- Department of Sciences & Humanities, Rajiv Gandhi Institute of Petroleum Technology (RGIPT) – Jais, Amethi, Uttar Pradesh – 229304, India
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17
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Li JZ, Zhang WK, Ge GP, Zheng H, Wei WT. Recent progress in the radical α-C(sp 3)-H functionalization of ketones. Org Biomol Chem 2021; 19:7333-7347. [PMID: 34612358 DOI: 10.1039/d1ob01408k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The direct use structurally simple ketones as α-ketone radical sources for α-C(sp3)-H functionalization is a sustainable and powerful approach for constructing complex and multifunctional chemical scaffolds with diverse applications. The reactions of α-ketone radicals with alkenes, alkynes, enynes, imides, and imidazo[1,2-a]pyridines have broadened the structural diversity and complexity of ketones. Through chosen illustrative examples, we outline the recent progress in the development of methods that enable the radical α-C(sp3)-H functionalization of ketones, with an emphasis on radical initiation systems and possible mechanisms of the transformations. The application of these strategies is illustrated by the synthesis of several biologically active molecules and drug molecules. Further subdivision is based on substrate type and reaction type.
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Affiliation(s)
- Jiao-Zhe Li
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
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18
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Ovezova M, Eroğlu Z, Metin Ö, Çetinkaya B, Gülcemal S. Unveiling the catalytic nature of palladium-N-heterocyclic carbene catalysts in the α-alkylation of ketones with primary alcohols. Dalton Trans 2021; 50:10896-10908. [PMID: 34308936 DOI: 10.1039/d1dt01704g] [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
We report herein the synthesis of four new Pd-PEPPSI complexes with backbone-modified N-heterocyclic carbene (NHC) ligands and their application as catalysts in the α-alkylation of ketones with primary alcohols using a borrowing hydrogen process and tandem Suzuki-Miyaura coupling/α-alkylation reactions. Among the synthesized Pd-PEPPSI complexes, complex 2c having 4-methoxyphenyl groups at the 4,5-positions and 4-methoxybenzyl substituents on the N-atoms of imidazole exhibited the highest catalytic activity in the α-alkylation of ketones with primary alcohols (18 examples) with yields reaching up to 95%. Additionally, complex 2c was demonstrated to be an effective catalyst for the tandem Suzuki-Miyaura-coupling/α-alkylation of ketones to give biaryl ketones with high yields. The heterogeneous nature of the present catalytic system was verified by mercury poisoning and hot filtration experiments. Moreover, the formation of NHC-stabilized Pd(0) nanoparticles during the α-alkylation reactions was identified by advanced analytical techniques.
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Affiliation(s)
- Mamajan Ovezova
- Department of Chemistry, Ege University, 35100 Izmir, Turkey.
| | - Zafer Eroğlu
- Department of Chemistry, College of Sciences, Koç University, 34450 Istanbul, Turkey. and Nanoscience and Nanoengineering Division, Graduate School of Natural and Applied Sciences, Atatürk University, 25240 Erzurum, Turkey
| | - Önder Metin
- Department of Chemistry, College of Sciences, Koç University, 34450 Istanbul, Turkey.
| | - Bekir Çetinkaya
- Department of Chemistry, Ege University, 35100 Izmir, Turkey.
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19
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Zhu G, Zhao J, Duan T, Wang L, Wang D. Unsymmetrical Pyrazoly‐Pyridinyl‐Triazole Promoted High Active Copper Composites on Mesoporous Materials and Catalytic Applications. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100310] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Guanxin Zhu
- The Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 P. R. China
| | - Jiaxin Zhao
- The Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 P. R. China
- The Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials College of Materials and Chemical Engineering China Three Gorges University Yichang 443002 P. R. China
| | - Tianbo Duan
- The Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 P. R. China
| | - Long Wang
- The Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials College of Materials and Chemical Engineering China Three Gorges University Yichang 443002 P. R. China
| | - Dawei Wang
- The Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 P. R. China
- State Key Laboratory of Pulp and Paper Engineering South China University of Technology Guangzhou 510640 P. R. China
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20
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Kaur M, U Din Reshi N, Patra K, Bhattacherya A, Kunnikuruvan S, Bera JK. A Proton-Responsive Pyridyl(benzamide)-Functionalized NHC Ligand on Ir Complex for Alkylation of Ketones and Secondary Alcohols. Chemistry 2021; 27:10737-10748. [PMID: 33998720 DOI: 10.1002/chem.202101360] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Indexed: 12/22/2022]
Abstract
A Cp*Ir(III) complex (1) of a newly designed ligand L1 featuring a proton-responsive pyridyl(benzamide) appended on N-heterocyclic carbene (NHC) has been synthesized. The molecular structure of 1 reveals a dearomatized form of the ligand. The protonation of 1 with HBF4 in tetrahydrofuran gives the corresponding aromatized complex [Cp*Ir(L1 H)Cl]BF4 (2). Both compounds are characterized spectroscopically and by X-ray crystallography. The protonation of 1 with acid is examined by 1 H NMR and UV-vis spectra. The proton-responsive character of 1 is exploited for catalyzing α-alkylation of ketones and β-alkylation of secondary alcohols using primary alcohols as alkylating agents through hydrogen-borrowing methodology. Compound 1 is an effective catalyst for these reactions and exhibits a superior activity in comparison to a structurally similar iridium complex [Cp*Ir(L2 )Cl]PF6 (3) lacking a proton-responsive pendant amide moiety. The catalytic alkylation is characterized by a wide substrate scope, low catalyst and base loadings, and a short reaction time. The catalytic efficacy of 1 is also demonstrated for the syntheses of quinoline and lactone derivatives via acceptorless dehydrogenation, and selective alkylation of two steroids, pregnenolone and testosterone. Detailed mechanistic investigations and DFT calculations substantiate the role of the proton-responsive ligand in the hydrogen-borrowing process.
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Affiliation(s)
- Mandeep Kaur
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Noor U Din Reshi
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Kamaless Patra
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Arindom Bhattacherya
- Department of Chemistry and Center for Environmental Sciences and Engineering, Indian Institute of Technology Kanpur, Kanpur, 208016, India
| | - Sooraj Kunnikuruvan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, 695551, 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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21
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Genç S, Gülcemal S, Günnaz S, Çetinkaya B, Gülcemal D. Synthesis of α-Alkylated Ketones via Selective Epoxide Opening/Alkylation Reactions with Primary Alcohols. Org Lett 2021; 23:5229-5234. [PMID: 34143639 DOI: 10.1021/acs.orglett.1c01765] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A new method for converting terminal epoxides and primary alcohols into α-alkylated ketones under borrowing hydrogen conditions is reported. The procedure involves a one-pot epoxide ring opening and alkylation via primary alcohols in the presence of an N-heterocyclic carbene iridium(I) catalyst, under aerobic conditions, with water as the side product.
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Affiliation(s)
- Sertaç Genç
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | | | - Salih Günnaz
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | - Bekir Çetinkaya
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | - Derya Gülcemal
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
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22
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Nad P, Mukherjee A. Acceptorless Dehydrogenative Coupling Reactions by Manganese Pincer Complexes. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100249] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Pinaki Nad
- Department of Chemistry Indian Institute of Technology Bhilai GEC Campus Sejbahar Raipur, Chhattisgarh 492015 India
| | - Arup Mukherjee
- Department of Chemistry Indian Institute of Technology Bhilai GEC Campus Sejbahar Raipur, Chhattisgarh 492015 India
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23
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Frost JR, Cheong CB, Akhtar WM, Caputo DF, Christensen KE, Stevenson NG, Donohoe TJ. Hydrogen borrowing catalysis using 1° and 2° alcohols: Investigation and scope leading to α and β branched products. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132051] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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24
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Verma A, Hazra S, Dolui P, Elias AJ. Ruthenium‐Catalyzed Synthesis of α‐Alkylated Ketones and Quinolines in an Aqueous Medium via a Hydrogen‐Borrowing Strategy Using Ketones and Alcohols. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000686] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ashutosh Verma
- Department of Chemistry Indian Institute of Technology Hauz Khas New Delhi 110016 India
| | - Susanta Hazra
- Department of Chemistry Indian Institute of Technology Hauz Khas New Delhi 110016 India
| | - Pritam Dolui
- Department of Chemistry Indian Institute of Technology Hauz Khas New Delhi 110016 India
| | - Anil J. Elias
- Department of Chemistry Indian Institute of Technology Hauz Khas New Delhi 110016 India
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25
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Sklyaruk J, Zubar V, Borghs JC, Rueping M. Methanol as the Hydrogen Source in the Selective Transfer Hydrogenation of Alkynes Enabled by a Manganese Pincer Complex. Org Lett 2020; 22:6067-6071. [DOI: 10.1021/acs.orglett.0c02151] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jan Sklyaruk
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Viktoriia Zubar
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Jannik C. Borghs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
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26
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Genç S, Gülcemal S, Günnaz S, Çetinkaya B, Gülcemal D. Iridium-Catalyzed Alkylation of Secondary Alcohols with Primary Alcohols: A Route to Access Branched Ketones and Alcohols. J Org Chem 2020; 85:9139-9152. [DOI: 10.1021/acs.joc.0c01099] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sertaç Genç
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | | | - Salih Günnaz
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | - Bekir Çetinkaya
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
| | - Derya Gülcemal
- Ege University, Chemistry Department, 35100 Bornova, Izmir, Turkey
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27
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Lan XB, Ye Z, Liu J, Huang M, Shao Y, Cai X, Liu Y, Ke Z. Sustainable and Selective Alkylation of Deactivated Secondary Alcohols to Ketones by Non-bifunctional Pincer N-heterocyclic Carbene Manganese. CHEMSUSCHEM 2020; 13:2557-2563. [PMID: 32233008 DOI: 10.1002/cssc.202000576] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Indexed: 06/10/2023]
Abstract
A sustainable and green route to access diverse functionalized ketones via dehydrogenative-dehydrative cross-coupling of primary and secondary alcohols is demonstrated. This borrowing hydrogen approach employing a pincer N-heterocyclic carbene Mn complex displays high activity and selectivity. A variety of primary and secondary alcohols are well tolerant and result in satisfactory isolated yields. Mechanistic studies suggest that this reaction proceeds via a direct outer-sphere mechanism and the dehydrogenation of the secondary alcohol substrates plays a vital role in the rate-limiting step.
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Affiliation(s)
- Xiao-Bing Lan
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Zongren Ye
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Jiahao Liu
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Ming Huang
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Youxiang Shao
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Xiang Cai
- Department of Light Chemical Engineering, Guangdong Polytechnic, Foshan, 528041, P. R. China
| | - Yan Liu
- School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006, P. R. China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
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28
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Recent advancement in oxidation or acceptorless dehydrogenation of alcohols to valorised products using manganese based catalysts. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213241] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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29
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Kabadwal LM, Bera S, Banerjee D. Iron-catalysed alkylation of 2-methyl and 4-methyl azaarenes with alcohols via C-H bond activation. Chem Commun (Camb) 2020; 56:4777-4780. [PMID: 32227001 DOI: 10.1039/d0cc01593h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The first Fe-catalysed alkylation of 2-methyl and 4-methyl-azaarenes with a series of alkyl and hetero-aryl alcohols is reported (>39 examples and up to 95% yield). Multi-functionalisation of pyrazines and synthesis of anti-malarial drug (±) Angustureine significantly broaden the scope of this methodology. Preliminary mechanistic investigation, deuterium labeling and kinetic experiments including trapping of the enamine intermediate 1a' are of special importance.
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Affiliation(s)
- Lalit Mohan Kabadwal
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India.
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30
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Sk M, Kumar A, Das J, Banerjee D. A Simple Iron-Catalyst for Alkenylation of Ketones Using Primary Alcohols. Molecules 2020; 25:molecules25071590. [PMID: 32235642 PMCID: PMC7181299 DOI: 10.3390/molecules25071590] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 02/20/2020] [Accepted: 03/06/2020] [Indexed: 11/28/2022] Open
Abstract
Herein, we developed a simple iron-catalyzed system for the α-alkenylation of ketones using primary alcohols. Such acceptor-less dehydrogenative coupling (ADC) of alcohols resulted in the synthesis of a series of important α,β-unsaturated functionalized ketones, having aryl, heteroaryl, alkyl, nitro, nitrile and trifluoro-methyl, as well as halogen moieties, with excellent yields and selectivity. Initial mechanistic studies, including deuterium labeling experiments, determination of rate and order of the reaction, and quantitative determination of H2 gas, were performed. The overall transformations produce water and dihydrogen as byproducts.
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31
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Rohit KR, Radhika S, Saranya S, Anilkumar G. Manganese‐Catalysed Dehydrogenative Coupling – An Overview. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901389] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- K. R. Rohit
- School of Chemical SciencesMahatma Gandhi University Kottayam Kerala 686560 India
| | - Sankaran Radhika
- School of Chemical SciencesMahatma Gandhi University Kottayam Kerala 686560 India
| | - Salim Saranya
- School of Chemical SciencesMahatma Gandhi University Kottayam Kerala 686560 India
| | - Gopinathan Anilkumar
- School of Chemical SciencesMahatma Gandhi University Kottayam Kerala 686560 India
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32
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Piehl P, Amuso R, Alberico E, Junge H, Gabriele B, Neumann H, Beller M. Cyclometalated Ruthenium Pincer Complexes as Catalysts for the α-Alkylation of Ketones with Alcohols. Chemistry 2020; 26:6050-6055. [PMID: 31985105 PMCID: PMC7317879 DOI: 10.1002/chem.202000396] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Indexed: 11/29/2022]
Abstract
Ruthenium PNP pincer complexes bearing supplementary cyclometalated C,N‐bound ligands have been prepared and fully characterized for the first time. By replacing CO and H− as ancillary ligands in such complexes, additional electronic and steric modifications of this topical class of catalysts are possible. The advantages of the new catalysts are demonstrated in the general α‐alkylation of ketones with alcohols following a hydrogen autotransfer protocol. Herein, various aliphatic and benzylic alcohols were applied as green alkylating agents for ketones bearing aromatic, heteroaromatic or aliphatic substituents as well as cyclic ones. Mechanistic investigations revealed that during catalysis, Ru carboxylate complexes are predominantly formed whereas neither the PNP nor the CN ligand are released from the catalyst in significant amounts.
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Affiliation(s)
- Patrick Piehl
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Roberta Amuso
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany.,Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036, Arcavacata di, Rende (CS, Italy
| | - Elisabetta Alberico
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany.,Istituto di Chimica Biomolecolare, CNR, tr. La Crucca 3, 07100, Sassari, Italy
| | - Henrik Junge
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC), Department of Chemistry and Chemical Technologies, University of Calabria, Via Pietro Bucci 12/C, 87036, Arcavacata di, Rende (CS, Italy
| | - Helfried Neumann
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V., Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
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33
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Lu G, Xie F, Xie R, Jiang H, Zhang M. Iridium/Acid Cocatalyzed Direct Access to Fused Indoles via Transfer Hydrogenative Annulation of Quinolines and 1,2-Diketones. Org Lett 2020; 22:2308-2312. [DOI: 10.1021/acs.orglett.0c00500] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guangpeng Lu
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, P. R. China
| | - Feng Xie
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
| | - Rong Xie
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, P. R. China
| | - Huanfeng Jiang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, P. R. China
| | - Min Zhang
- Key Lab of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Wushan Rd-381, Guangzhou 510641, P. R. China
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen 529020, China
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34
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Kaithal A, van Bonn P, Hölscher M, Leitner W. Manganese(I)-Catalyzed β-Methylation of Alcohols Using Methanol as C 1 Source. Angew Chem Int Ed Engl 2020; 59:215-220. [PMID: 31651071 PMCID: PMC6973237 DOI: 10.1002/anie.201909035] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 09/27/2019] [Indexed: 01/01/2023]
Abstract
Highly selective β-methylation of alcohols was achieved using an earth-abundant first row transition metal in the air stable molecular manganese complex [Mn(CO)2 Br[HN(C2 H4 Pi Pr2 )2 ]] 1 ([HN(C2 H4 Pi Pr2 )2 ]=MACHO-i Pr). The reaction requires only low loadings of 1 (0.5 mol %), methanolate as base and MeOH as methylation reagent as well as solvent. Various alcohols were β-methylated with very good selectivity (>99 %) and excellent yield (up to 94 %). Biomass derived aliphatic alcohols and diols were also selectively methylated on the β-position, opening a pathway to "biohybrid" molecules constructed entirely from non-fossil carbon. Mechanistic studies indicate that the reaction proceeds through a borrowing hydrogen pathway involving metal-ligand cooperation at the Mn-pincer complex. This transformation provides a convenient, economical, and environmentally benign pathway for the selective C-C bond formation with potential applications for the preparation of advanced biofuels, fine chemicals, and biologically active molecules.
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Affiliation(s)
- Akash Kaithal
- Institut für Technische und Makromolekulare ChemieRWTH Aachen UniversityWorringer Weg 252074AachenGermany
| | - Pit van Bonn
- Institut für Technische und Makromolekulare ChemieRWTH Aachen UniversityWorringer Weg 252074AachenGermany
| | - Markus Hölscher
- Institut für Technische und Makromolekulare ChemieRWTH Aachen UniversityWorringer Weg 252074AachenGermany
| | - Walter Leitner
- Institut für Technische und Makromolekulare ChemieRWTH Aachen UniversityWorringer Weg 252074AachenGermany
- Max-Planck-Institut für chemische EnergiekonversionStiftstraße 34–3645470Mülheim a.d. RuhrGermany
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35
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Kaithal A, Bonn P, Hölscher M, Leitner W. Manganese(I)‐Catalyzed β‐Methylation of Alcohols Using Methanol as C
1
Source. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909035] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Akash Kaithal
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Pit Bonn
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Markus Hölscher
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
| | - Walter Leitner
- Institut für Technische und Makromolekulare Chemie RWTH Aachen University Worringer Weg 2 52074 Aachen Germany
- Max-Planck-Institut für chemische Energiekonversion Stiftstraße 34–36 45470 Mülheim a.d. Ruhr Germany
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36
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Ligand-controlled phosphine-free Co(II)-catalysed cross-coupling of secondary and primary alcohols. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.130640] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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37
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Ibrahim JJ, Reddy CB, Zhang S, Yang Y. Ligand‐Free FeCl
2
‐Catalyzed α‐Alkylation of Ketones with Alcohols. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jessica Juweriah Ibrahim
- Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - C. Bal Reddy
- Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 China
| | - Shaochun Zhang
- Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 China
| | - Yong Yang
- Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 China
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38
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Alanthadka A, Bera S, Banerjee D. Iron-Catalyzed Ligand Free α-Alkylation of Methylene Ketones and β-Alkylation of Secondary Alcohols Using Primary Alcohols. J Org Chem 2019; 84:11676-11686. [DOI: 10.1021/acs.joc.9b01600] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Anitha Alanthadka
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
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39
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Das J, Vellakkaran M, Banerjee D. Nickel-Catalyzed Alkylation of Ketone Enolates: Synthesis of Monoselective Linear Ketones. J Org Chem 2018; 84:769-779. [PMID: 30548070 DOI: 10.1021/acs.joc.8b02609] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein we have developed a Ni-catalyzed protocol for the synthesis of linear ketones. Aryl, alkyl, and heteroaryl ketones as well as alcohols yielded the monoselective ketones in up to 90% yield. The catalytic protocol was successfully applied in to a gram-scale synthesis. For a practical utility, applications of a steroid derivative, oleyl alcohol, and naproxen alcohol were employed. Preliminary catalytic investigations involving the isolation of a Ni intermediate and defined Ni-H species as well as a series of deuterium-labeling experiments were performed.
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Affiliation(s)
- Jagadish Das
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis , Indian Institute of Technology Roorkee , Roorkee 247667 , India
| | - Mari Vellakkaran
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis , Indian Institute of Technology Roorkee , Roorkee 247667 , India
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis , Indian Institute of Technology Roorkee , Roorkee 247667 , India
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