1
|
Liu H, Tang T, Li B, Wang B. Manganese(I)-catalyzed nucleophilic addition of C(sp 3)-H bonds to aldehydes. Chem Commun (Camb) 2024; 60:5066-5069. [PMID: 38639013 DOI: 10.1039/d4cc01338g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The C-H bond activation catalyzed by a manganese(I) complex has achieved significant development but is limited to C(sp2)-H bonds. In this work, an efficient manganese(I)-catalyzed direct nucleophilic addition reaction of C(sp3)-H bonds to aromatic aldehydes has been developed. This is the first example of manganese(I)-catalyzed C(sp3)-H bond transformation. A manganacycle complex was isolated and proved to be the key active intermediate in the catalytic cycle.
Collapse
Affiliation(s)
- Hongxin Liu
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
| | - Tingyu Tang
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
| | - Bin Li
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
| | - Baiquan Wang
- State Key Laboratory of Elemento-Organic Chemistry and Frontiers Science Center for New Organic Matter, College of Chemistry, Nankai University, Tianjin 300071, People's Republic of China.
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People's Republic of China
| |
Collapse
|
2
|
Singh S, Parammal A, Kumar M, X JS, Subramanian P. Iso-Pentadienyl Carbonate as a Five Carbon Synthon in Manganese(I)-Catalyzed Selective Linear 1,3-Dienylation. Chemistry 2023; 29:e202301632. [PMID: 37518839 DOI: 10.1002/chem.202301632] [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: 05/22/2023] [Revised: 07/12/2023] [Accepted: 07/27/2023] [Indexed: 08/01/2023]
Abstract
Selective linear 1,3-dienylations are essential transformations, and numerous synthetic efforts have been documented. However, a general method enabling access to electron-rich, -poor, and biologically relevant dienyl molecules is in high demand. Hence, we report a straightforward method of manganese(I)-catalyzed C-H dienylation of arenes by using iso-pentadienyl carbonate as a five carbon synthon. This is a highly unprecedented report for selective linear 1,3-dienylation using manganese C-H activation catalysis. Our method facilitates the synthesis of varieties of dienes, including those suitable for normal or inverse electron demand Diels-Alder reactions, dienyl glycoconjugates, and unnatural amino acids. Extensive mechanistic studies, including isolation of C-H activated organo-manganese complex and isotopic analyses, have supported the proposed mechanism of this dienylation. The synthetic applicability of this method eased to deliver a 6/6/5-fused tricyclic nagilactone scaffold.
Collapse
Affiliation(s)
- Shubham Singh
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| | - Athira Parammal
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| | - Manoj Kumar
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| | - Joe Sam X
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| | - Parthasarathi Subramanian
- Department of Chemistry, Indian Institution of Technology Kanpur, Kanpur, 208016 Uttar Pradesh, India
| |
Collapse
|
3
|
Parammal A, Singh S, Kumar M, Xavier JS, Subramanian P. Robust Synthesis of Terpenoid Scaffolds under Mn(I)-Catalysis. J Org Chem 2023. [PMID: 37463248 DOI: 10.1021/acs.joc.3c00816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
The 6/6/5-fused tricyclic scaffold is a central feature of structurally complex terpenoid natural products. A step-economical cascade transformation that leads to a complex molecular skeleton is regarded as a sustainable methodology. Therefore, we report the first Mn(I)-catalyzed C(sp2)-H chemoselective in situ dienylation and diastereoselective intramolecular Diels-Alder reaction using iso-pentadienyl carbonate to access 6/6/5-fused tricyclic scaffolds. To the best of our knowledge, there is no such report thus far to utilize iso-pentadienyl carbonate as a substrate in C-H activation catalysis. Extensive mechanistic studies, such as the isolation of catalytically active organo-manganese(I) complexes, 1,3-dienyl-intermediates, and isotopic labeling experiments have supported the proposed mechanism of this cascade reaction.
Collapse
Affiliation(s)
- Athira Parammal
- Indian Institution of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Shubham Singh
- Indian Institution of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Manoj Kumar
- Indian Institution of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | - Joe Sam Xavier
- Indian Institution of Technology Kanpur, Kanpur, Uttar Pradesh 208016, India
| | | |
Collapse
|
4
|
Kathiravan S, Zhang T, Nicholls IA. Iridium catalysed C2 site-selective methylation of indoles using a pivaloyl directing group through weak chelation-assistance. RSC Adv 2023; 13:11291-11295. [PMID: 37057266 PMCID: PMC10088075 DOI: 10.1039/d3ra02031b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/04/2023] [Indexed: 04/15/2023] Open
Abstract
Here we present an iridium catalysed C2-selective methylation of indoles using methyltrifluoroborate as a source of methyl group. The iridium catalyst selectively discriminates the indole C2 and C4 C-H bonds by coordination with a pivaloyl directing group.
Collapse
Affiliation(s)
| | - Tianshu Zhang
- Bioorganic & Biophysical Chemistry Laboratory, Linnaeus University Centre for Biomaterials Chemistry, Department of Chemistry & Biomedical Sciences, Linnaeus University Kalmar SE-39182 Sweden
| | - Ian A Nicholls
- Bioorganic & Biophysical Chemistry Laboratory, Linnaeus University Centre for Biomaterials Chemistry, Department of Chemistry & Biomedical Sciences, Linnaeus University Kalmar SE-39182 Sweden
| |
Collapse
|
5
|
Zhang Q, Yue P, Lei H, Zhou CY, Wang C. Metal- and light-free approach to polyheterocycles via a quinone-Cs2CO3 couple promoted regioselective cascade radical cyclization. GREEN SYNTHESIS AND CATALYSIS 2023. [DOI: 10.1016/j.gresc.2023.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
|
6
|
Jei BB, Yang L, Ackermann L. Selective Labeling of Peptides with o-Carboranes via Manganese(I)-Catalyzed C-H Activation. Chemistry 2022; 28:e202200811. [PMID: 35420234 PMCID: PMC9320968 DOI: 10.1002/chem.202200811] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Indexed: 12/15/2022]
Abstract
A robust method for the selective labeling of peptides via manganese(I) catalysis was devised to achieve the C-2 alkenylation of tryptophan containing peptides with 1-ethynyl-o-carboranes. The manganese-catalyzed C-H activation was accomplished with high catalytic efficiency, and featured low toxicity, high functional group tolerance and excellent E-stereoselectivity. This approach unravels a promising tool for the assembly of o-carborane with structurally complex peptides of relevance to applications in boron neutron capture therapy.
Collapse
Affiliation(s)
- Becky Bongsuiru Jei
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tamannstraße 2, 37077, Göttingen, Germany.,Woehler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Long Yang
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tamannstraße 2, 37077, Göttingen, Germany.,Woehler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tamannstraße 2, 37077, Göttingen, Germany.,Woehler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| |
Collapse
|
7
|
Verma SK, Punji B. Manganese-Catalyzed C(sp2)-H Alkylation of Indolines and Arenes with Unactivated Alkyl Bromides. Chem Asian J 2022; 17:e202200103. [PMID: 35289105 DOI: 10.1002/asia.202200103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/02/2022] [Indexed: 11/10/2022]
Abstract
Selective C(sp 2 ) - H bond alkylation of indoline, carbazole and (2-pyridinyl)arenes with unactivated alkyl bromides is achieved using MnBr 2 catalyst in the absence of an external ligand. The alkylation uses a simple LiHMDS base and avoids the necessity of Grignard reagent, unlike other Mn-catalyzed C - H functionalization. This reaction proceeded either through a five- or a less-favored six-membered metallacycle, and tolerated diverse functionalities, including alkenyl, alkynyl, silyl, aryl ether, pyrrolyl, indolyl, carbazolyl and alkyl bearing fatty alcohol and polycyclic-steroid moieties. Alkylation follows a single electron transfer (SET) pathway involving 1e oxidative addition of alkyl bromide and a rate-limiting C-H metalation.
Collapse
Affiliation(s)
- Suryadev K Verma
- CSIR-National Chemical Laboratory: National Chemical Laboratory CSIR, Organic Chemistry Division, Dr. Homi Bhabha Road, Pune, 411008, Pune, INDIA
| | - Benudhar Punji
- National Chemical Laboratory CSIR, Chemical Engineering Division, Dr. Homi Bhabha Road, 411008, Pune, INDIA
| |
Collapse
|
8
|
Empel C, Jana S, Langletz T, Koenigs RM. Rhodium-Catalyzed C-H Methylation and Alkylation Reactions by Carbene-Transfer Reactions. Chemistry 2022; 28:e202104321. [PMID: 35015327 PMCID: PMC9302633 DOI: 10.1002/chem.202104321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Indexed: 12/18/2022]
Abstract
In this combined computational and experimental study, the C-H functionalization of 2-phenyl pyridine with diazoalkanes was investigated. Initial evaluation by computational methods allowed the evaluation of different metal catalysts and diazoalkanes and their compatibility in this C-H functionalization reaction. With these findings, suitable reaction conditions for the C-H methylation reactions were quickly identified by using highly reactive TMS diazomethane and C-H alkylation reactions with donor/acceptor diazoalkanes, which is applied to a broad scope on alkylation reactions of 2-aryl pyridines with TMS diazomethane and donor/acceptor diazoalkane (51 examples, up to 98 % yield).
Collapse
Affiliation(s)
- Claire Empel
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074, Aachen, Germany
| | - Sripati Jana
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074, Aachen, Germany
| | - Tim Langletz
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074, Aachen, Germany
| | - Rene M Koenigs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074, Aachen, Germany
| |
Collapse
|
9
|
Redox-neutral C–H acylation of indole with ketene by manganese catalysis. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
10
|
Jha N, Khot NP, Kapur M. Transition-Metal-Catalyzed C-H Bond Functionalization of Arenes/Heteroarenes via Tandem C-H Activation and Subsequent Carbene Migratory Insertion Strategy. CHEM REC 2021; 21:4088-4122. [PMID: 34647679 DOI: 10.1002/tcr.202100193] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/20/2022]
Abstract
The past decade has witnessed tremendous developments in transition-metal-catalyzed C-H bond activation and subsequent carbene migratory insertion reactions, thus assisting in the construction of diverse arene/heteroarene scaffolds. Various transition-metal catalysts serve this purpose and provide efficient pathways for an easy access to substituted heterocycles. A brief introduction to metal-carbenes has been provided along with key mechanistic pathways underlying the coupling reactions. The purpose of this review is to provide a concise knowledge about diverse directing group-assisted coupling of varied arenes/heteroarenes and acceptor-acceptor/donor-acceptor diazo compounds. The review also highlights the synthesis of various carbocycles and fused heterocycles through diazo insertion pathways, via C-C, C-N and C-O bond forming reactions. The mechanism usually involves a C-H activation process, followed by diazo insertion leading to subsequent coupling.
Collapse
Affiliation(s)
- Neha Jha
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462066, Madhya Pradesh, India
| | - Nandkishor Prakash Khot
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462066, Madhya Pradesh, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal Bhauri, Bhopal, 462066, Madhya Pradesh, India
| |
Collapse
|
11
|
Yuan XA, Huang C, Wang X, Liu P, Bi S, Li D. Computational Study on the Mechanisms and Origins of Selectivity in Hydroarylation of 1,3-Diyne Alcohol Catalyzed by Di- and Mononuclear Manganese Complexes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xiang-Ai Yuan
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Congcong Huang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Xiaoyu Wang
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Peng Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| | - Dan Li
- School of Chemistry and Chemical Engineering, Qufu Normal University, 57 Jingxuan West Road, Qufu, Shandong 273165, China
| |
Collapse
|
12
|
Planas F, Costantini M, Montesinos-Magraner M, Himo F, Mendoza A. Combined Experimental and Computational Study of Ruthenium N-Hydroxyphthalimidoyl Carbenes in Alkene Cyclopropanation Reactions. ACS Catal 2021; 11:10950-10963. [PMID: 34504736 PMCID: PMC8419840 DOI: 10.1021/acscatal.1c02540] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Revised: 08/05/2021] [Indexed: 01/14/2023]
Abstract
A combined experimental-computational approach has been used to study the cyclopropanation reaction of N-hydroxyphthalimide diazoacetate (NHPI-DA) with various olefins, catalyzed by a ruthenium-phenyloxazoline (Ru-Pheox) complex. Kinetic studies show that the better selectivity of the employed redox-active NHPI diazoacetate is a result of a much slower dimerization reaction compared to aliphatic diazoacetates. Density functional theory calculations reveal that several reactions can take place with similar energy barriers, namely, dimerization of the NHPI diazoacetate, cyclopropanation (inner-sphere and outer-sphere), and a previously unrecognized migratory insertion of the carbene into the phenyloxazoline ligand. The calculations show that the migratory insertion reaction yields an unconsidered ruthenium complex that is catalytically competent for both the dimerization and cyclopropanation, and its relevance is assessed experimentally. The stereoselectivity of the reaction is argued to stem from an intricate balance between the various mechanistic scenarios.
Collapse
Affiliation(s)
| | | | - Marc Montesinos-Magraner
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Fahmi Himo
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| | - Abraham Mendoza
- Department of Organic Chemistry,
Arrhenius Laboratory, Stockholm University, SE-106 91 Stockholm, Sweden
| |
Collapse
|
13
|
Liu L, Xue P, Chen Q, Wang C. Copper-Catalyzed Heck-Type Couplings of Sulfonyl Chlorides with Olefins: Efficient and Rapid Access to Vinyl Sulfones. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153319] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
14
|
Choi I, Shen Z, Ronge E, Karius V, Jooss C, Ackermann L. Reusable Manganese Catalyst for Site-Selective Pyridine C-H Arylations and Alkylations. Chemistry 2021; 27:12737-12741. [PMID: 34181789 PMCID: PMC8518803 DOI: 10.1002/chem.202101894] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Indexed: 11/19/2022]
Abstract
Herein, we disclose a recyclable, hybrid manganese catalyst for site‐selective azine C−H activation by weak amide assistance. The novel, reusable catalyst enabled C3–H arylation and C3–H alkylation with ample scope, and was characterized by detailed transmission electron microscopy analysis.
Collapse
Affiliation(s)
- Isaac Choi
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Zhigao Shen
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| | - Emanuel Ronge
- Institut für MaterialphysikGeorg-August-Universität GöttingenFriedrich-Hund-Platz 137077GöttingenGermany
| | - Volker Karius
- Geowissenschaftliches ZentrumGeorg-August-Universität GöttingenGoldschmidtstraße 337077GöttingenGermany
| | - Christian Jooss
- Institut für MaterialphysikGeorg-August-Universität GöttingenFriedrich-Hund-Platz 137077GöttingenGermany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh)Georg-August-Universität GöttingenTammanstraße 237077GöttingenGermany
| |
Collapse
|
15
|
Sar S, Das R, Sen S. Blue LED Induced Manganese (I) Catalysed Direct C2−H Activation of Pyrroles with Aryl Diazoesters. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100305] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Saibal Sar
- Department of Chemistry, School of Natural Sciences Shiv Nadar University, Dadri, Chithera, Gautam Budh Nagar Uttar Pradesh 201314 India
| | - Ranajit Das
- Department of Chemistry, School of Natural Sciences Shiv Nadar University, Dadri, Chithera, Gautam Budh Nagar Uttar Pradesh 201314 India
| | - Subhabrata Sen
- Department of Chemistry, School of Natural Sciences Shiv Nadar University, Dadri, Chithera, Gautam Budh Nagar Uttar Pradesh 201314 India
| |
Collapse
|
16
|
Abstract
AbstractTransition-metal-catalyzed nucleophilic C–H addition of hydrocarbons to polar unsaturated bonds could intrinsically avoid prefunctionalization of substrates and formation of waste byproducts, thus featuring high step- and atom-economy. As the third most abundant transition metal, manganese-catalyzed C–H addition to polar unsaturated bonds remains challenging, partially due to the difficulty in building a closed catalytic cycle of manganese. In the past few years, we have developed manganese catalysis to enable the sp2-hydrid C–H addition to polar unsaturated bonds (e.g., imines, aldehydes, nitriles), which will be discussed in this personal account.1 Introduction2 Mn-Catalyzed N-Directed C(sp2)–H Addition to Polar Unsaturated Bonds3 Mn-Catalyzed O-Directed C(sp2)–H Addition to Polar Unsaturated Bonds4 Conclusion
Collapse
Affiliation(s)
- Congyang Wang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences
- University of Chinese Academy of Sciences
- Physical Science Laboratory, Huairou National Comprehensive Science Center
| | - Ting Liu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Molecular Recognition and Function, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences
- University of Chinese Academy of Sciences
| |
Collapse
|
17
|
Wan S, Luo Z, Xu X, Yu H, Li J, Pan Y, Zhang X, Xu L, Cao R. Manganese(I)‐Catalyzed Site‐Selective C6‐Alkenylation of 2‐Pyridones Using Alkynes via C−H Activation. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100056] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Shanhong Wan
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Zhenli Luo
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Xin Xu
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Haiyang Yu
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Jiajie Li
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Yixiao Pan
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Xin Zhang
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Lijin Xu
- Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Rui Cao
- School of Chemistry and Chemical Engineering Shaanxi Normal University Xi'an 710062 People's Republic of China
| |
Collapse
|
18
|
Li MH, Si XJ, Zhang H, Yang D, Niu JL, Song MP. Directed Cobalt-Catalyzed C-H Activation to Form C-C and C-O Bonds in One Pot via Three-Component Coupling. Org Lett 2021; 23:914-919. [PMID: 33475370 DOI: 10.1021/acs.orglett.0c04122] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, we disclose an efficient cobalt-catalyzed three-component coupling of benzamides, diazo compounds, and tert-butyl hydroperoxide, which provides an efficient approach to construct C(sp2)-C(sp3) and C-O bonds in one-pot accompanied with C-H activation. This protocol features low catalyst loading (4 mol %), the avoidance of additives, and excellent functional group compatibility, providing three-component coupling adducts with high yields under mild conditions (up to 88%). Mechanism studies show that the reaction may involve a radical process.
Collapse
Affiliation(s)
- Meng-Hui Li
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Xiao-Ju Si
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - He Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Dandan Yang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| |
Collapse
|
19
|
Zhang Q, Li Q, Wang C. Dual C–H activation: Rh(iii)-catalyzed cascade π-extended annulation of 2-arylindole with benzoquinone. RSC Adv 2021; 11:13030-13033. [PMID: 35423833 PMCID: PMC8697334 DOI: 10.1039/d1ra01779a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Accepted: 03/26/2021] [Indexed: 12/31/2022] Open
Abstract
A rhodium-catalyzed, N–H free indole directed cyclization reaction of benzoquinone via a dual C–H activation strategy is disclosed. This protocol has a good functional group tolerance and affords useful indole-fused heterocylces. Besides, it is insensitive to moisture, commercially available solvent can be directly used and work quite well for this transformation. A Rh-catalyzed cascade annulation of N–H free 2-arylindole with benzoquinone via dual C–H activation strategy was reported.![]()
Collapse
Affiliation(s)
- Qijing Zhang
- Department of Chemistry
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- China
| | - Qianrong Li
- Department of Chemistry
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- China
| | - Chengming Wang
- Department of Chemistry
- College of Chemistry and Materials Science
- Jinan University
- Guangzhou
- China
| |
Collapse
|
20
|
Liu J, Xu G, Tang S, Chen Q, Sun J. Site-Selective Functionalization of 7-Azaindoles via Carbene Transfer and Isolation of N-Aromatic Zwitterions. Org Lett 2020; 22:9376-9380. [DOI: 10.1021/acs.orglett.0c03653] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Junheng Liu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Qun Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| |
Collapse
|
21
|
Maity B, Zhu C, Yue H, Huang L, Harb M, Minenkov Y, Rueping M, Cavallo L. Mechanistic Insight into the Photoredox-Nickel-HAT Triple Catalyzed Arylation and Alkylation of α-Amino C sp3-H Bonds. J Am Chem Soc 2020; 142:16942-16952. [PMID: 32900195 DOI: 10.1021/jacs.0c05010] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report here a comprehensive computational analysis of the mechanisms of the photoredox-nickel-HAT (HAT: hydrogen atom transfer) catalyzed arylation and alkylation of α-amino Csp3-H bonds developed by MacMillan and co-workers. Different alternatives for the three catalytic cycles were tested to identify unambiguously the operative reaction mechanism. Our analysis indicated that the IrIII photoredox catalyst, upon irradiation with visible light, can be either reduced or oxidized by the HAT and nickel catalysts, respectively, indicating that both reductive and oxidative quenching catalytic cycles can be operative, although the reductive cycle is favored. Our analysis of the HAT cycle indicated that activation of a α-amino Csp3-H bond of the substrate is facile and selective relative to activation of a β-amino Csp3-H bond. Finally, our analysis of the nickel cycle indicated that both arylation and alkylation of α-amino Csp3-H bonds occurs via the sequence of nickel oxidation states NiI-NiII-NiI-NiIII and of elementary steps: radical addition-SET-oxidative addition-reductive elimination.
Collapse
Affiliation(s)
- Bholanath Maity
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal, 23955-6900 Saudi Arabia
| | - Chen Zhu
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal, 23955-6900 Saudi Arabia
| | - Huifeng Yue
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal, 23955-6900 Saudi Arabia
| | - Long Huang
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Moussab Harb
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal, 23955-6900 Saudi Arabia
| | - Yury Minenkov
- N. N. Semenov Federal Research Center for Chemical Physics RAS, Kosygina Street 4, 119991 Moscow, Russia
| | - Magnus Rueping
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal, 23955-6900 Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center (KCC), Thuwal, 23955-6900 Saudi Arabia
| |
Collapse
|
22
|
Zhang X, Zhu P, Zhang R, Li X, Yao T. Visible-Light-Induced Decarboxylative Cyclization of 2-Alkenylarylisocyanides with α-Oxocarboxylic Acids: Access to 2-Acylindoles. J Org Chem 2020; 85:9503-9513. [PMID: 32600039 DOI: 10.1021/acs.joc.0c00039] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient and practical protocol for visible-light-induced decarboxylative cyclization of 2-alkenylarylisocyanides with α-oxocarboxylic acids has been developed, which afforded a broad range of 2-acylindoles in moderate to good yields. The reaction proceeds through a cascade of acyl radical addition/cyclization reactions under irradiation of an Ir3+ photoredox catalyst without external oxidants and features simple operation, scalability, a broad substrate scope, and good functional group tolerance.
Collapse
Affiliation(s)
- Xiaofei Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Peiyuan Zhu
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Ruihong Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Xiang Li
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Tuanli Yao
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| |
Collapse
|
23
|
Zubar V, Sklyaruk J, Brzozowska A, Rueping M. Chemoselective Hydrogenation of Alkynes to ( Z) -Alkenes Using an Air-Stable Base Metal Catalyst. Org Lett 2020; 22:5423-5428. [PMID: 32639161 DOI: 10.1021/acs.orglett.0c01783] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly selective hydrogenation of alkynes using an air-stable and readily available manganese catalyst has been achieved. The reaction proceeds under mild reaction conditions and tolerates various functional groups, resulting in (Z)-alkenes and allylic alcohols in high yields. Mechanistic experiments suggest that the reaction proceeds via a bifunctional activation involving metal-ligand cooperativity.
Collapse
Affiliation(s)
- Viktoriia Zubar
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany.,KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Jan Sklyaruk
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Aleksandra Brzozowska
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| |
Collapse
|
24
|
Borghs JC, Zubar V, Azofra LM, Sklyaruk J, Rueping M. Manganese-Catalyzed Regioselective Dehydrogenative C- versus N-Alkylation Enabled by a Solvent Switch: Experiment and Computation. Org Lett 2020; 22:4222-4227. [DOI: 10.1021/acs.orglett.0c01270] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jannik C. Borghs
- 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), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Luis Miguel Azofra
- CIDIA-FEAM (Unidad Asociada al Consejo Superior de Investigaciones Científicas, CSIC, avalada por el Instituto de Ciencia de Materiales de Sevilla, Universidad de Sevilla), Instituto de Estudios Ambientales y Recursos Naturales (i-UNAT), Universidad de Las Palmas de Gran Canaria (ULPGC), Campus de Tafira, 35017 Las Palmas de Gran Canaria, Spain
| | - Jan Sklyaruk
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| |
Collapse
|
25
|
Zubar V, Borghs JC, Rueping M. Hydrogenation or Dehydrogenation of N-Containing Heterocycles Catalyzed by a Single Manganese Complex. Org Lett 2020; 22:3974-3978. [DOI: 10.1021/acs.orglett.0c01273] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Viktoriia Zubar
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| | - Jannik C. Borghs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- KAUST Catalysis Center (KCC), KAUST, Thuwal 23955-6900, Saudi Arabia
| |
Collapse
|
26
|
Brzozowska A, Zubar V, Ganardi RC, Rueping M. Chemoselective Hydroboration of Propargylic Alcohols and Amines Using a Manganese(II) Catalyst. Org Lett 2020; 22:3765-3769. [DOI: 10.1021/acs.orglett.0c00941] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Aleksandra Brzozowska
- 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
| | - Ruth-Christine Ganardi
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- 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
| |
Collapse
|
27
|
Bhat AH, Alavi S, Grover HK. Tandem Carbenoid C-H Functionalization/Conia-ene Cyclization of N-Propargyl Indoles Generates Pyrroloindoles under Cooperative Rh(II)/Zn(II) Catalysis. Org Lett 2020; 22:224-229. [PMID: 31854993 DOI: 10.1021/acs.orglett.9b04210] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The decomposition of diazodicarbonyl compounds in the presence of various metal catalysts has become a reliable method for the functionalization of indoles via carbenoid intermediates. Exploiting the nucleophilic reactivity of the in situ generated malonic ester product formed, we herein report a tandem C-H functionalization/Conia-ene cyclization of N-alkyne tethered indoles. This double functionalization of diazodicarbonyls generates a range of pyrrolo[1,2-a]-, pyrido[1,2-a]-, and azepino[1,2-a]indole products with good synthetic efficiency.
Collapse
Affiliation(s)
- Aabid H Bhat
- Department of Chemistry , Memorial University of Newfoundland , St. John's , Newfoundland A1B 3X7 , Canada
| | - Sima Alavi
- Department of Chemistry , Memorial University of Newfoundland , St. John's , Newfoundland A1B 3X7 , Canada
| | - Huck K Grover
- Department of Chemistry , Memorial University of Newfoundland , St. John's , Newfoundland A1B 3X7 , Canada
| |
Collapse
|
28
|
Pan Z, Liu Y, Hu F, Liu Q, Shang W, Xia C. Photochemical α-carboxyalkylation of tryptophols and tryptamines via C–H functionalization. Chem Commun (Camb) 2020; 56:4930-4933. [DOI: 10.1039/d0cc00847h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A process for the α-carboxyalkylation of tryptophols and tryptamines by the functionalization of C–H bonds under visible light irradiation has been developed.
Collapse
Affiliation(s)
- Zhiqiang Pan
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province)
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- China
| | - Yuchang Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province)
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- China
| | - Fengchi Hu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province)
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- China
| | - Qinglong Liu
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province)
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- China
| | - Wenbin Shang
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province)
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- China
| | - Chengfeng Xia
- Key Laboratory of Medicinal Chemistry for Natural Resource (Ministry of Education and Yunnan Province)
- School of Chemical Science and Technology
- Yunnan University
- Kunming
- China
| |
Collapse
|
29
|
Wang P, Zhang J, Han L, Bi S, Liu T. Substituent-dependent generation of tricyclic frameworks by the rhodium-catalyzed cycloisomerization of homopropargyl allene-alkynes: a theoretical study. Dalton Trans 2020; 49:7406-7419. [DOI: 10.1039/d0dt00508h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polycyclic compounds having biological activities can be modified by employing different substituents.
Collapse
Affiliation(s)
- Ping Wang
- Department of Chemistry and Chemical Engineering
- Jining University
- Qufu 273155
- China
- School of Chemistry and Chemical Engineering
| | - Jing Zhang
- Department of Chemistry and Chemical Engineering
- Jining University
- Qufu 273155
- China
- School of Chemistry and Chemical Engineering
| | - Lingli Han
- Department of Chemistry and Chemical Engineering
- Jining University
- Qufu 273155
- China
- School of Chemistry and Chemical Engineering
| | - Siwei Bi
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Tao Liu
- Department of Chemistry and Chemical Engineering
- Jining University
- Qufu 273155
- China
- School of Chemistry and Chemical Engineering
| |
Collapse
|
30
|
Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2018. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
31
|
Wang Z, Xu G, Tang S, Shao Y, Sun J. Catalyst-Controlled Selective Alkylation/Cyclopropanation of Indoles with Vinyl Diazoesters. Org Lett 2019; 21:8488-8491. [DOI: 10.1021/acs.orglett.9b03323] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Zhen Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Guangyang Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Shengbiao Tang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Ying Shao
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| | - Jiangtao Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China
| |
Collapse
|
32
|
Gu L, Fang X, Weng Z, Lin J, He M, Ma W. PIDA‐Promoted Selective C
5
C−H Selenylations of Indolines
via
Weak Interactions. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900766] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Linghui Gu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University People's Republic of China Chengdu 610052
| | - Xinyue Fang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University People's Republic of China Chengdu 610052
| | - Zhengyun Weng
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University People's Republic of China Chengdu 610052
| | - Jiafu Lin
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University People's Republic of China Chengdu 610052
| | - Meicui He
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University People's Republic of China Chengdu 610052
| | - Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of AntibioticsChengdu University People's Republic of China Chengdu 610052
| |
Collapse
|
33
|
Ciszewski ŁW, Durka J, Gryko D. Photocatalytic Alkylation of Pyrroles and Indoles with α-Diazo Esters. Org Lett 2019; 21:7028-7032. [DOI: 10.1021/acs.orglett.9b02612] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Łukasz W. Ciszewski
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52 01-224 Warsaw, Poland
| | - Jakub Durka
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52 01-224 Warsaw, Poland
- Department of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland
| | - Dorota Gryko
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52 01-224 Warsaw, Poland
| |
Collapse
|
34
|
Wang W, Subramanian P, Martinazzoli O, Wu J, Ackermann L. Glycopeptides by Linch‐Pin C−H Activations for Peptide‐Carbohydrate Conjugation by Manganese(I)‐Catalysis. Chemistry 2019; 25:10585-10589. [DOI: 10.1002/chem.201902788] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Wei Wang
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Parthasarathi Subramanian
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Oscar Martinazzoli
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Jun Wu
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| |
Collapse
|
35
|
Borghs JC, Azofra LM, Biberger T, Linnenberg O, Cavallo L, Rueping M, El-Sepelgy O. Manganese-Catalyzed Multicomponent Synthesis of Pyrroles through Acceptorless Dehydrogenation Hydrogen Autotransfer Catalysis: Experiment and Computation. CHEMSUSCHEM 2019; 12:3083-3088. [PMID: 30589227 DOI: 10.1002/cssc.201802416] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/06/2018] [Accepted: 11/07/2018] [Indexed: 06/09/2023]
Abstract
A new base metal catalyzed sustainable multicomponent synthesis of pyrroles from readily available substrates is reported. The developed protocol utilizes an air- and moisture-stable catalyst system and enables the replacement of themutagenic α-haloketones with readily abundant 1,2-diols. Moreover, the presented method is catalytic in base and the sole byproducts of this transformation are water and hydrogen gas. Experimental and computational mechanistic studies indicate that the reaction takes place through a combined acceptorless dehydrogenation hydrogen autotransfer methodology.
Collapse
Affiliation(s)
- Jannik C Borghs
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Luis Miguel Azofra
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Tobias Biberger
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Oliver Linnenberg
- Institute of Inorganic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| | - Luigi Cavallo
- KAUST Catalysis Center (KCC), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia
| | - Magnus Rueping
- 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
| | - Osama El-Sepelgy
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074, Aachen, Germany
| |
Collapse
|
36
|
Chen P, Hao Y, Wang X, Yuan D, Yao Y, Ackermann L. Directing-Group-Free C7-Alkylations of N-Alkylindoles Mediated by Cationic Zirconium Complexes: Role of Brønsted Acid for Catalytic Manifold. Chemistry 2019; 25:7292-7297. [PMID: 30893504 DOI: 10.1002/chem.201901268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Indexed: 01/05/2023]
Abstract
Highly position selective alkylations of N-alkylindoles at C7-positions have been enabled by cationic zirconium complexes. The strategy provides a straightforward access to install alkyl groups at C7-positions of indoles without a complex directing group. Mechanistic studies provided support for the importance of Brønsted acids in the catalytic manifold.
Collapse
Affiliation(s)
- Ping Chen
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yanhong Hao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Xinxin Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Dan Yuan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, P. R. China
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universiät Götingen, Tammannstraße 2, 37077, Götingen, Germany
| |
Collapse
|
37
|
Beyond Friedel and Crafts: Directed Alkylation of C−H Bonds in Arenes. Angew Chem Int Ed Engl 2019; 58:7202-7236. [DOI: 10.1002/anie.201806629] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/13/2018] [Indexed: 11/07/2022]
|
38
|
Zhu C, Kuniyil R, Ackermann L. Manganese(I)‐Catalyzed C−H Activation/Diels–Alder/retro‐Diels–Alder Domino Alkyne Annulation featuring Transformable Pyridines. Angew Chem Int Ed Engl 2019; 58:5338-5342. [DOI: 10.1002/anie.201900495] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2019] [Revised: 02/07/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Cuiju Zhu
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Gottingen Germany
| | - Rositha Kuniyil
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Gottingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Gottingen Germany
| |
Collapse
|
39
|
Zhu C, Kuniyil R, Ackermann L. Manganese(I)‐Catalyzed C−H Activation/Diels–Alder/retro‐Diels–Alder Domino Alkyne Annulation featuring Transformable Pyridines. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900495] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Cuiju Zhu
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Gottingen Germany
| | - Rositha Kuniyil
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Gottingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Gottingen Germany
| |
Collapse
|
40
|
Dutta PK, Chauhan J, Ravva MK, Sen S. Directing-Group-Assisted Manganese-Catalyzed Cyclopropanation of Indoles. Org Lett 2019; 21:2025-2028. [DOI: 10.1021/acs.orglett.9b00150] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pratip K. Dutta
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, Gautam Budh Nagar, UP 201314, India
| | - Jyoti Chauhan
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, Gautam Budh Nagar, UP 201314, India
| | | | - Subhabrata Sen
- Department of Chemistry, School of Natural Sciences, Shiv Nadar University, Dadri, Chithera, Gautam Budh Nagar, UP 201314, India
- Department of Chemistry, SRM University-AP, Amaravati, 522502, India
| |
Collapse
|
41
|
Ma X, Dang Y. Mechanistic Study of Manganese-Catalyzed C-H Bond Functionalizations: Factors Controlling the Competition between Hydroarylation and Cyclization. J Org Chem 2019; 84:1916-1924. [PMID: 30633518 DOI: 10.1021/acs.joc.8b02914] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The Mn-catalyzed C-H functionalization of indoles with allenes developed by Rueping and co-workers provides an efficient access to various alkenylated indoles and substituted pyrroloindolones. Herein, we present a systematic computational study to understand the mechanism and origins of substrate-controlled chemoselectivity of the C-H functionalization reactions (hydroarylation vs cascade cyclization). For the disubstituted allene system, the computed mechanism consists of three main phases: C-H activation, allene migratory insertion, and protonation giving the hydroarylation product. All of these steps are feasible, in agreement with the good yield under the mild experimental conditions. On the other hand, for the trisubstituted allene system, hydroarylation is suppressed due to the higher energy barrier for the protonation step arising from the disfavored ligand-substrate steric repulsions between the carboxide ligand and the substituent group in the allene substrate; our computational results demonstrate that, after the allene insertion leading to a seven-membered cyclometalated intermediate, it undergoes a reaction pathway involving sequential "ketone to enol" isomerization, a 1,4-heteroaryl shift, and β-methoxyl elimination giving the pyrroloindolone product. In contrast, this isomerization → heteroaryl shift → β-methoxyl elimination process is unworkable in the disubstituted allene system, because the protonation step takes place more favorably owing to the lack of ligand-substrate steric interactions. The findings taken together give an insight into the role of the ligand-substrate interactions in directing the competitive pathways and differentiating the energies of key transition states by steric repulsions.
Collapse
Affiliation(s)
- Xiaoxiao Ma
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences , Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , People's Republic of China.,School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , People's Republic of China
| | - Yanfeng Dang
- Department of Chemistry and Tianjin Key Laboratory of Molecular Optoelectronic Sciences , Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering , Tianjin 300072 , People's Republic of China
| |
Collapse
|
42
|
Evano G, Theunissen C. Jenseits von Friedel und Crafts: dirigierte Alkylierung von C‐H‐Bindungen in Arenen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201806629] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gwilherm Evano
- Laboratoire de Chimie OrganiqueService de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
| | - Cédric Theunissen
- Laboratoire de Chimie OrganiqueService de Chimie et Physico-Chimie OrganiquesUniversité libre de Bruxelles (ULB) Avenue F.D. Roosevelt 50, CP160/06 1050 Brüssel Belgien
| |
Collapse
|
43
|
Kaplaneris N, Rogge T, Yin R, Wang H, Sirvinskaite G, Ackermann L. Late-Stage Diversification through Manganese-Catalyzed C−H Activation: Access to Acyclic, Hybrid, and Stapled Peptides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201812705] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Nikolaos Kaplaneris
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammanstraße 2 37077 Göttingen Germany
| | - Torben Rogge
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammanstraße 2 37077 Göttingen Germany
| | - Rongxin Yin
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammanstraße 2 37077 Göttingen Germany
| | - Hui Wang
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammanstraße 2 37077 Göttingen Germany
| | - Giedre Sirvinskaite
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammanstraße 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammanstraße 2 37077 Göttingen Germany
| |
Collapse
|
44
|
Kaplaneris N, Rogge T, Yin R, Wang H, Sirvinskaite G, Ackermann L. Late-Stage Diversification through Manganese-Catalyzed C-H Activation: Access to Acyclic, Hybrid, and Stapled Peptides. Angew Chem Int Ed Engl 2019; 58:3476-3480. [PMID: 30565829 DOI: 10.1002/anie.201812705] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Indexed: 12/16/2022]
Abstract
Bioorthogonal C-H allylation with ample scope was accomplished through a versatile manganese(I)-catalyzed C-H activation for the late-stage diversification of structurally complex peptides. The unique robustness of the manganese(I) catalysis manifold was reflected by full tolerance of sensitive functional groups, such as iodides, esters, amides, and OH-free hydroxy groups, thereby setting the stage for the racemization-free synthesis of C-H fused peptide hybrids featuring steroids, drug molecules, natural products, nucleobases, and saccharides.
Collapse
Affiliation(s)
- Nikolaos Kaplaneris
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| | - Torben Rogge
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| | - Rongxin Yin
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| | - Hui Wang
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| | - Giedre Sirvinskaite
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammanstraße 2, 37077, Göttingen, Germany
| |
Collapse
|
45
|
Liu B, Yuan Y, Hu P, Zheng G, Bai D, Chang J, Li X. Mn(i)-Catalyzed nucleophilic addition/ring expansion via C–H activation and C–C cleavage. Chem Commun (Camb) 2019; 55:10764-10767. [PMID: 31432805 DOI: 10.1039/c9cc05973c] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The Mn(i)-Catalyzed C–H alkenylation/carbonyl addition/retro-Aldol cascade was realized leading to the convenient synthesis of seven- or eight-membered carbocycles.
Collapse
Affiliation(s)
- Bingxian Liu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
| | - Yin Yuan
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
| | - Panjie Hu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
| | - Guangfan Zheng
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University (SNNU)
- Xi’an 710062
- China
| | - Dachang Bai
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
| |
Collapse
|
46
|
Kumar GS, Khot NP, Kapur M. Oxazolinyl‐Assisted Ru(II)‐Catalyzed C−H Functionalization Based on Carbene Migratory Insertion: A One‐Pot Three‐Component Cascade Cyclization. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801362] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Gangam Srikanth Kumar
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066, MP India
| | - Nandkishor Prakash Khot
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066, MP India
| | - Manmohan Kapur
- Department of ChemistryIndian Institute of Science Education and Research Bhopal Bhopal Bypass Road, Bhauri Bhopal 462066, MP India
| |
Collapse
|
47
|
Wang Z, Zhu L, Zhong K, Qu L, Bai R, Lan Y. Mechanistic Insights into Manganese (I)‐Catalyzed Chemoselective Hydroarylations of Alkynes: A Theoretical Study. ChemCatChem 2018. [DOI: 10.1002/cctc.201801301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zheyuan Wang
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 P.R. China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 P.R. China
| | - Kangbao Zhong
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 P.R. China
| | - Ling‐Bo Qu
- College of Chemistry and Molecular Engineering Zhengzhou University Zhengzhou 450001 P.R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 P.R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering Chongqing University Chongqing 400030 P.R. China
- College of Chemistry and Molecular Engineering Zhengzhou University Zhengzhou 450001 P.R. China
| |
Collapse
|
48
|
Liang Y, Steinbock R, Yang L, Ackermann L. Continuous Visible‐Light Photoflow Approach for a Manganese‐Catalyzed (Het)Arene C−H Arylation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805644] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yu‐Feng Liang
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Ralf Steinbock
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Long Yang
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| |
Collapse
|
49
|
Liang YF, Steinbock R, Yang L, Ackermann L. Continuous Visible-Light Photoflow Approach for a Manganese-Catalyzed (Het)Arene C-H Arylation. Angew Chem Int Ed Engl 2018; 57:10625-10629. [PMID: 29882633 DOI: 10.1002/anie.201805644] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 06/06/2018] [Indexed: 11/12/2022]
Abstract
Manganese photocatalysts enabled versatile room-temperature C-H arylation reactions by means of continuous visible-light photoflow, thus allowing for efficient C-H arylations in 30 minutes with ample scope. The robustness of the manganese-catalyzed photoflow strategy was shown by visible light-induced gram-scale synthesis, clearly outperforming the batch performance.
Collapse
Affiliation(s)
- Yu-Feng Liang
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Ralf Steinbock
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Long Yang
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Göttingen, Germany
| |
Collapse
|
50
|
Tang Z, Mai S, Zhou Y, Song Q. Divergent synthesis of α-aryl ketones/esters via rhodium-catalyzed selective deesterification and decarbonylation of diazo compounds. Org Chem Front 2018. [DOI: 10.1039/c8qo00619a] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A rhodium-catalyzed selective deesterification, decarbonylation and dual C–H activation of diazo compounds is presented.
Collapse
Affiliation(s)
- Zhonghe Tang
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Shaoyu Mai
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Yao Zhou
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
| |
Collapse
|