1
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Barman M, Mishra M, Mandal S, Punniyamurthy T. Palladium Catalysis Enabled Sequential C(sp 3)-H/C-C Activation: Access to Vinyl γ-Lactams. Org Lett 2024; 26:3722-3726. [PMID: 38678543 DOI: 10.1021/acs.orglett.4c00710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
A Pd(II)-catalyzed tandem reaction of aliphatic amides with vinylcyclopropanes (VCPs) was accomplished by merging C(sp3)-H and C-C activation. The reaction of VCP revealed alkenylation/cyclization, followed by ring opening via C-C cleavage, delivering vinyl γ-lactams with (E)-selectivity. The role of ligands, site-selectivity, functional group diversity, mechanistic insight, and synthetic utilities are important practical features.
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Affiliation(s)
- Madhab Barman
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
| | - Manmath Mishra
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
| | - Santu Mandal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
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2
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Staronova L, Yamazaki K, Xu X, Shi H, Bickelhaupt FM, Hamlin TA, Dixon DJ. Cobalt-Catalyzed Enantio- and Regioselective C(sp 3 )-H Alkenylation of Thioamides. Angew Chem Int Ed Engl 2024; 63:e202316021. [PMID: 38143241 DOI: 10.1002/anie.202316021] [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: 10/23/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 12/26/2023]
Abstract
An enantioselective cobalt-catalyzed C(sp3 )-H alkenylation of thioamides with but-2-ynoate ester coupling partners employing thioamide directing groups is presented. The method is operationally simple and requires only mild reaction conditions, while providing alkenylated products as single regioisomers in excellent yields (up to 85 %) and high enantiomeric excess [up to 91 : 9 enantiomeric ratio (er), or up to >99 : 1 er after a single recrystallization]. Diverse downstream derivatizations of the products are demonstrated, delivering a range of enantioenriched constructs. Extensive computational studies using density functional theory provide insight into the detailed reaction mechanism, origin of enantiocontrol, and the unusual regioselectivity of the alkenylation reaction.
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Affiliation(s)
- Lucia Staronova
- Department of Chemistry, Chemistry Research Laboratory University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Ken Yamazaki
- Department of Chemistry, Chemistry Research Laboratory University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
- Department of Chemistry and Pharmaceutical Sciences, AIMMS, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ, Amsterdam, The Netherlands
| | - Xing Xu
- Department of Chemistry, Chemistry Research Laboratory University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Heyao Shi
- Department of Chemistry, Chemistry Research Laboratory University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - F Matthias Bickelhaupt
- Department of Chemistry and Pharmaceutical Sciences, AIMMS, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ, Amsterdam, The Netherlands
- Institute of Molecules and Materials, Radboud University, Heyendaalseweg 135, 6525 AJ, Nijmegen, The Netherlands
- Department of Chemical Sciences, University of Johannesburg, Auckland Park, Johannesburg, 2006, South Africa
| | - Trevor A Hamlin
- Department of Chemistry and Pharmaceutical Sciences, AIMMS, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ, Amsterdam, The Netherlands
| | - Darren J Dixon
- Department of Chemistry, Chemistry Research Laboratory University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, UK
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3
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Saha S, Bhattacharyya H, Karjee P, Debnath B, Verma K, Punniyamurthy T. Expedient C-H allylation of sulfoxonium ylides: merging C-H and C-C/C-het bond activation. Chem Commun (Camb) 2023; 59:14173-14176. [PMID: 37955606 DOI: 10.1039/d3cc04507b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
Sulfoxonium ylide chelation-assisted C-H allylation of arenes has been accomplished utilizing strained vinyl carbo/heterocycles as the allyl surrogates via sequential C-H and C-C/het bond activation. Broad substrate scope, Co-catalysis, selectivity, and late-stage drug mutation are the important practical features.
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Affiliation(s)
- Sharajit Saha
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Hemanga Bhattacharyya
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Pallab Karjee
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Bijoy Debnath
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Kshitiz Verma
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
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4
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Mandal S, Paul T, Karjee P, Barman M, Punniyamurthy T. Site-Selective C8-Alkylation of Quinolines with Cyclopropanols: Merging C-H/C-C Bond Activation. Org Lett 2023; 25:7805-7809. [PMID: 37870381 DOI: 10.1021/acs.orglett.3c02972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2023]
Abstract
The site-selective C8-alkylation of quinolines has been accomplished using cyclopropyl alcohols as the alkylating agents and N-oxide as a weak chelating group in the presence of Co(III) catalysis via merging C-H/C-C bond activation. The use of cyclopropanol as the alkyl source, Co catalysis, substrate scope, HRMS analysis of the reaction intermediate, and late-stage mutation of drug molecules/natural products are the important practical features.
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Affiliation(s)
- Santu Mandal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Tripti Paul
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Pallab Karjee
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
| | - Madhab Barman
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India
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5
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Basak S, Paul T, Punniyamurthy T. A redox-neutral weak carbonyl chelation assisted C4-H allylation of indoles with vinylcyclopropanes. Chem Commun (Camb) 2023; 59:11568-11571. [PMID: 37682283 DOI: 10.1039/d3cc03614f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
A weak acyl chelation-assisted distal C4-H allylation of indoles has been accomplished using vinylcyclopropanes as an allylating agent under redox-neutral ruthenium(II) catalysis. The regioselectivity, removable directing group, substrate scope and diastereoselectivity are the important practical features.
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Affiliation(s)
- Shubhajit Basak
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Tripti Paul
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
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6
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de Carvalho RL, Diogo EBT, Homölle SL, Dana S, da Silva Júnior EN, Ackermann L. The crucial role of silver(I)-salts as additives in C-H activation reactions: overall analysis of their versatility and applicability. Chem Soc Rev 2023; 52:6359-6378. [PMID: 37655711 PMCID: PMC10714919 DOI: 10.1039/d3cs00328k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Indexed: 09/02/2023]
Abstract
Transition-metal catalyzed C-H activation reactions have been proven to be useful methodologies for the assembly of synthetically meaningful molecules. This approach bears intrinsic peculiarities that are important to be studied and comprehended in order to achieve its best performance. One example is the use of additives for the in situ generation of catalytically active species. This strategy varies according to the type of additive and the nature of the pre-catalyst that is being used. Thus, silver(I)-salts have proven to play an important role, due to the resulting high reactivity derived from the pre-catalysts of the main transition metals used so far. While being powerful and versatile, the use of silver-based additives can raise concerns, since superstoichiometric amounts of silver(I)-salts are typically required. Therefore, it is crucial to first understand the role of silver(I) salts as additives, in order to wisely overcome this barrier and shift towards silver-free systems.
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Affiliation(s)
- Renato L de Carvalho
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais-UFMG, 31270-901, Belo Horizonte, MG, Brazil.
| | - Emilay B T Diogo
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais-UFMG, 31270-901, Belo Horizonte, MG, Brazil.
| | - Simon L Homölle
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
| | - Suman Dana
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
| | - Eufrânio N da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais-UFMG, 31270-901, Belo Horizonte, MG, Brazil.
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
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7
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Mondal B, Hazra S, Chatterjee A, Patel M, Saha J. Fe-Catalyzed Hydroallylation of Unactivated Alkenes with Vinyl Cyclopropanes. Org Lett 2023. [PMID: 37481744 DOI: 10.1021/acs.orglett.3c02105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Catalytic, reductive C-C bond formation between alkenes and vinyl cyclopropane (VCP) through hydrogen atom transfer (MHAT) is developed. Despite VCP's use as probes in radical-clock experiments, translation of this manifold into synthetic methods for accessing elusive C-C bonds remains largely unexplored. This work represents the first foray into this front where the high chemoselectivity of MHAT for alkene over VCP was pivotal for realizing the strategy. This method exhibits a broad scope, high functional group tolerance, and useful applications.
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Affiliation(s)
- Biplab Mondal
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, Lucknow 226014, India
| | - Subhadeep Hazra
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, Lucknow 226014, India
| | - Ayan Chatterjee
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, Lucknow 226014, India
| | - Manveer Patel
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, Lucknow 226014, India
| | - Jaideep Saha
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Mohali 160062, India
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8
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Saha S, Debnath B, Talukdar K, Karjee P, Mandal S, Punniyamurthy T. Cascade C-H Activation/Annulation of Sulfoxonium Ylides with Vinyl Cyclopropanes: Access to Cyclopropane-Fused α-Tetralones. Org Lett 2023; 25:3352-3357. [PMID: 37140969 DOI: 10.1021/acs.orglett.3c00650] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Rh-catalyzed weak and traceless directing-group-assisted cascade C-H activation and annulation of sulfoxonium ylides with vinyl cyclopropanes as a coupling partner have been accomplished to furnish functionalized cyclopropane-fused tetralones at moderate temperature. The C-C bond formation, cyclopropanation, functional group tolerance, late-stage diversifications of drug molecules, and scale-up are the important practical features.
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Affiliation(s)
- Sharajit Saha
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Bijoy Debnath
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Kangkan Talukdar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Pallab Karjee
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
| | - Santu Mandal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India
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9
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Pati BV, Puthalath NN, Banjare SK, Nanda T, Ravikumar PC. Transition metal-catalyzed C-H/C-C activation and coupling with 1,3-diyne. Org Biomol Chem 2023; 21:2842-2869. [PMID: 36917476 DOI: 10.1039/d3ob00238a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
This review provides a broad overview of the recent developments in the field of transition metal-catalyzed C-H/C-C bond activation and coupling with 1,3-diyne for assembling alkynylated heterocycles, bis-heterocycles, and 1,3-enynes. Transition metal-catalyzed inert bond (C-H/C-C) activation has been the focus of attention among synthetic chemists in recent times. Enormous developments have taken place in C-H/C-C bond activation chemistry in the last two decades. In recent years the use of 2π-unsaturated units as coupling partners for the synthesis of heterocycles through C-H/C-C bond activation and annulation sequence has received immense attention. Among the unsaturated units employed for assembling heterocycles, the use of 1,3-diynes has garnered significant attention due to its ability to render bis-heterocycles in a straightforward manner. The C-H bond activation and coupling with 1,3-diyne has been very much explored in recent years. However, the development of strategies for the use of 1,3-diynes in the analogous C-C bond activation chemistry is less explored. Earlier methods employed to assemble bis-heterocycle used heterocycles that were preformed and pre-functionalized via transition metal-catalyzed coupling reactions. The expensive pre-functionalized halo-heterocycles and sensitive and expensive heterocyclic metal reagents limit its broad application. However, the transition metal-catalyzed C-H activation obviates the need for expensive heterocyclic metal reagents and pre-functionalized halo-heterocycles. The C-H bond activation strategy makes use of C-H bonds as functional groups for effecting the transformation. This renders the overall synthetic sequence both step and cost economic. Hence, this strategy of C-H activation and subsequent reaction with 1,3-diyne could be used for the larger-scale synthesis of chemicals in the pharmaceutical industry. Despite these advances, there is still the possibility of exploration of earth-abundant and cost-effective first-row transition metals (Ni, Cu, Mn. Fe, etc.) for the synthesis of bis-heterocycles. Moreover, the Cp*-ligand-free, simple metal-salt-mediated synthesis of bis-heterocycles is also less explored. Thus, more exploration of reaction conditions for the Cp*-free synthesis of bis-heterocycles is called for. We hope this review will inspire scientists to investigate these unexplored domains.
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Affiliation(s)
- Bedadyuti Vedvyas Pati
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Nitha Nahan Puthalath
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Shyam Kumar Banjare
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Tanmayee Nanda
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Ponneri C Ravikumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
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10
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Mandal S, Karjee P, Saha S, Punniyamurthy T. Directed C8-H allylation of quinoline N-oxides with vinylcyclopropanes via sequential C-H/C-C activation. Chem Commun (Camb) 2023; 59:2823-2826. [PMID: 36799135 DOI: 10.1039/d2cc06646g] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The Rh(III)-catalyzed C8-allylation of quinoline N-oxides has been accomplished using vinylcyclopropanes as an allyl source with excellent diastereoselectivity at room temperature. The C-H/C-C activation, substrate scope and natural product mutation are the important practical features.
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Affiliation(s)
- Santu Mandal
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Pallab Karjee
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
| | - Sharajit Saha
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India.
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11
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Cobalt(III)-catalyzed asymmetric ring-opening of 7-oxabenzonorbornadienes via indole C-H functionalization. Nat Commun 2023; 14:1094. [PMID: 36841798 PMCID: PMC9968317 DOI: 10.1038/s41467-023-36723-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/13/2023] [Indexed: 02/26/2023] Open
Abstract
Asymmetric ring-opening of 7-oxabenzonorbornadienes is achieved via Co-catalyzed indole C-H functionalization. The utilization of chiral Co-catalyst consisting of a binaphthyl-derived trisubstituted cyclopentadienyl ligand resulted in high yields (up to 99%) and excellent enantioselectivity (>99% ee) for the target products with tolerance for diverse functional groups. Opposite diastereoselectivities are obtained with chiral Co-catalyst or Cp*CoI2CO. Combined experimental and computational studies suggest β-oxygen elimination being the selectivity-determining step of the reaction. Meanwhile, the reactions of 7-azabenzonorbornadiene could also be executed in a diastereodivergent manner.
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12
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Keshri SK, Madhavan S, Kapur M. Catalyst-Controlled Chemodivergent Reactivity of Vinyl Cyclopropanes: A Selective Approach toward Indoles and Aniline Derivatives. Org Lett 2022; 24:9043-9048. [DOI: 10.1021/acs.orglett.2c03680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Santosh Kumar Keshri
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462066, MP, India
| | - Suchithra Madhavan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462066, MP, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal, 462066, MP, India
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13
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Ma C, Li C, Bai J, Xiao J, Zhai Y, Guo Y, Ma S. Rhodium-Catalyzed Intermolecular Stereoselective Allylation of Indoles with Allenes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chaoyan Ma
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, People’s Republic of China
| | - Can Li
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Jiahui Bai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Junzhe Xiao
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Yizhan Zhai
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Yinlong Guo
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
| | - Shengming Ma
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai, 200032, People’s Republic of China
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, People’s Republic of China
- Research Center for Molecular Recognition and Synthesis, Department of Chemistry, Fudan University, 220 Handan Lu, Shanghai 200433, People’s Republic of China
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14
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Mishra DR, Panda BS, Nayak S, Panda J, Mohapatra S. Recent Advances in the Synthesis of 5‐Membered
N
‐Heterocycles via Rhodium Catalysed Cascade Reactions. ChemistrySelect 2022. [DOI: 10.1002/slct.202200531] [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]
Affiliation(s)
- Deepak R. Mishra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Bhabani S. Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Sabita Nayak
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Jasmine Panda
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
| | - Seetaram Mohapatra
- Organic Synthesis Laboratory Department of Chemistry Ravenshaw University Cuttack 753003 Odisha India
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15
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16
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Penner PM, Green JR. Generation and Reactions of ε-Carbonyl Cations via Group 13 Catalysis. Molecules 2022; 27:3078. [PMID: 35630554 PMCID: PMC9146154 DOI: 10.3390/molecules27103078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/02/2022] [Accepted: 05/06/2022] [Indexed: 11/17/2022] Open
Abstract
The generation of ε-carbonyl cations and their reactions with nucleophiles is accomplished readily without transition metal cation stabilization, using the ε-bromide dienoate or dienone starting materials and GaCl3 or InCl3 catalysis. Arene nucleophiles are somewhat more straightforward than allyltrimethylsilane, but allyltrimethylsilane and propiophenone trimethysilyl enol ether each react successfully with InCl3 catalysis. The viability of these cations is supported by DFT calculations.
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Affiliation(s)
| | - James R. Green
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, ON N9B 3P4, Canada;
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17
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Jardim GAM, de Carvalho RL, Nunes MP, Machado LA, Almeida LD, Bahou KA, Bower JF, da Silva Júnior EN. Looking deep into C-H functionalization: the synthesis and application of cyclopentadienyl and related metal catalysts. Chem Commun (Camb) 2022; 58:3101-3121. [PMID: 35195128 DOI: 10.1039/d1cc07040a] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Metal catalyzed C-H functionalization offers a versatile platform for methodology development and a wide variety of reactions now exist for the chemo- and site-selective functionalization of organic molecules. Cyclopentadienyl-metal (CpM) complexes of transition metals and their correlative analogues have found widespread application in this area, and herein we highlight several key applications of commonly used transition-metal Cp-type catalysts. In addition, an understanding of transition metal Cp-type catalyst synthesis is important, particularly where modifications to the catalyst structure are required for different applications, and a summary of this aspect is given.
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Affiliation(s)
- Guilherme A M Jardim
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais - UFMG, Belo Horizonte, 31270-901, MG, Brazil. .,Centre for Excellence for Research in Sustainable Chemistry (CERSusChem), Department of Chemistry, Federal University of São Carlos, UFSCar, 13565-905, Brazil
| | - Renato L de Carvalho
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais - UFMG, Belo Horizonte, 31270-901, MG, Brazil.
| | - Mateus P Nunes
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais - UFMG, Belo Horizonte, 31270-901, MG, Brazil.
| | - Luana A Machado
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais - UFMG, Belo Horizonte, 31270-901, MG, Brazil. .,Department of Chemistry, Fluminense Federal University, Niteroi, 24020-141, RJ, Brazil
| | - Leandro D Almeida
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais - UFMG, Belo Horizonte, 31270-901, MG, Brazil.
| | - Karim A Bahou
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
| | - John F Bower
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
| | - Eufrânio N da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais - UFMG, Belo Horizonte, 31270-901, MG, Brazil.
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18
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Zhang H, Sun MC, Yang D, Li T, Song MP, Niu JL. Cobalt(II)-Catalyzed Activation of C(sp3)–H Bonds: Organic Oxidant Enabled Selective Functionalization. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05250] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- He Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Meng-Chan Sun
- 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
| | - Tong Li
- 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
| | - Jun-Long Niu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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19
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Ramachandran K, Anbarasan P. Cobalt-catalyzed multisubstituted allylation of the chelation-assisted C-H bond of (hetero)arenes with cyclopropenes. Chem Sci 2021; 12:13442-13449. [PMID: 34777763 PMCID: PMC8528013 DOI: 10.1039/d1sc03476f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Accepted: 09/14/2021] [Indexed: 12/04/2022] Open
Abstract
Cyclopropenes are highly strained three-membered carbocycles, which offer unique reactivity in organic synthesis. Herein, Cp*CoIII-catalyzed ring-opening isomerization of cyclopropenes to cobalt vinylcarbene has been utilized for the synthesis of multisubstituted allylarenes via directing group-assisted functionalization of C-H bonds of arenes and heteroarenes. Employing this methodology, various substituents can be introduced at all three carbons of the allyl moiety with high selectivity. The important highlights are excellent functional group tolerance, multisubstituted allylation, high selectivity, gram scale synthesis, removable directing group, and synthesis of cyclopenta[b]indoles. In addition, a potential cobaltocycle intermediate was identified and a plausible mechanism is also proposed.
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Affiliation(s)
- Kuppan Ramachandran
- Department of Chemistry, Indian Institute of Technology Madras Chennai 600036 India https://home.iitm.ac.in/anbarasansp/
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras Chennai 600036 India https://home.iitm.ac.in/anbarasansp/
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20
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Ghorai J, Kesavan A, Anbarasan P. Cp*Co(III)-catalyzed C2-thiolation and C2,C3-dithiolation of substituted indoles with N-(arylthio)succinimide. Chem Commun (Camb) 2021; 57:10544-10547. [PMID: 34553717 DOI: 10.1039/d1cc03760a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A general and efficient Cp*CoIII-catalyzed C2-thiolation and C2,C3-dithiolation of indole derivatives has been achieved employing N-(aryl/alkylthio)succinimide as a thiolating reagent. This external oxidant-free method utilizes only catalytic amounts of additive and tolerates various functional groups to afford various thiolated products in good yields. Control experiments revealed the importance of the Cp*CoIII-catalyst for both C2- and C3-thiolation.
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Affiliation(s)
- Jayanta Ghorai
- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, India.
| | - Arunachalam Kesavan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, India.
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai - 600036, India.
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21
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Kim YL, Park SA, Choi SM, Park JU, Kim JH. Co III-Catalyzed C-H Alkenylation and Allylation with Cyclopropenes via Sequential C-H/C-C Bond Activation. Org Lett 2021; 23:6674-6679. [PMID: 34474571 DOI: 10.1021/acs.orglett.1c02219] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An atom-economical strategy for the C-H alkenylation and C-H allylation of arenes by employing cyclopropenes as versatile alkenylating and allylating reagents is reported, catalyzed by cobalt. The Co-catalyzed C-H alkenylation process involves sequential C-H and C-C bond cleavage. Under the optimized conditions, broad-ranging alkenylated (hetero)arenes were synthesized with complete (E)-stereoselectivity (up to 91%). The consecutive C-H allylation proved viable under basic conditions via double-bond migration of the initially generated alkenyl (hetero)arenes, thus leading to allylated (hetero)arenes with high stereoselectivity of olefin (E/Z ratio = 91:9 to 100:0).
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Affiliation(s)
- Ye Lim Kim
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Sun-A Park
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Seoung-Mi Choi
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Jong-Un Park
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK21 FOUR), Research Institute of Natural Science, Gyeongsang National University, 52828, Jinju, Korea
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22
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Basuli S, Sahu S, Saha S, Maji MS. Cp*Co(III)‐Catalyzed Dehydrative C2‐Prenylation of Pyrrole and Indole with Allyl Alcohols. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100811] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Suchand Basuli
- Department of Chemistry Indian Institute of Technology Kharagpur West Bengal 721302 India
| | - Samrat Sahu
- Department of Chemistry Indian Institute of Technology Kharagpur West Bengal 721302 India
| | - Shuvendu Saha
- Department of Chemistry Indian Institute of Technology Kharagpur West Bengal 721302 India
| | - Modhu Sudan Maji
- Department of Chemistry Indian Institute of Technology Kharagpur West Bengal 721302 India
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23
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Herbort JH, Lalisse RF, Hadad CM, RajanBabu TV. Cationic Co(I) Catalysts for Regiodivergent Hydroalkenylation of 1,6-Enynes. An Uncommon cis-β-C-H Activation Leads to Z-Selective Coupling of Acrylates. ACS Catal 2021; 11:9605-9617. [PMID: 34745711 DOI: 10.1021/acscatal.1c02530] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Two intermolecular hydroalkenylation reactions of 1,6-enynes are presented which yield substituted 5-membered carbo- and -heterocycles. This reactivity is enabled by a cationic bis-diphenylphosphinopropane (DPPP)CoI species which forms a cobaltacyclopentene intermediate by oxidative cyclization of the enyne. This key species interacts with alkenes in distinct fashion, depending on the identity of the coupling partner to give regiodivergent products. Simple alkenes undergo insertion reactions to furnish 1,3-dienes whereby one of the alkenes is tetrasubstituted. When acrylates are employed as coupling partners, the site of intermolecular C-C formation shifts from the alkyne to the alkene motif of the enyne, yielding Z-substituted-acrylate derivatives. Computational studies provide support for our experimental observations and show that the turnover-limiting steps in both reactions are the interactions of the alkenes with the cobaltacyclopentene intermediate via either a 1,2-insertion in the case of ethylene, or an unexpected β-C-H activation in the case of most acrylates. Thus, the H syn to the ester is activated through the coordination of the acrylate carbonyl to the cobaltacycle intermediate, which explains the uncommon Z-selectivity and regiodivergence. Variable time normalization analysis (VTNA) of the kinetic data reveals a dependance upon the concentration of cobalt, acrylate, and activator. A KIE of 2.1 was observed with methyl methacrylate in separate flask experiments, indicating that C-H cleavage is the turnover-limiting step in the catalytic cycle. Lastly, a Hammett study of aryl-substituted enynes yields a ρ value of -0.4, indicating that more electron-rich substituents accelerate the rate of the reaction.
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Affiliation(s)
- James H. Herbort
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Remy F. Lalisse
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - Christopher M. Hadad
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
| | - T. V. RajanBabu
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States
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24
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Assembly of Highly Functionalized Allylic Sulfones via a Stereoselective Pd‐Catalyzed Sequential C−C/C−S Cleavage and C−S Formation Process. ChemistrySelect 2021. [DOI: 10.1002/slct.202101190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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Jiang Z, Huang J, Zeng Y, Hu F, Xia Y. Rhodium Catalyzed Regioselective C−H Allylation of Simple Arenes via C−C Bond Activation of
Gem
‐difluorinated Cyclopropanes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zhong‐Tao Jiang
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy Sichuan University Chengdu 610041 China
| | - Jiangkun Huang
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy Sichuan University Chengdu 610041 China
| | - Yaxin Zeng
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy Sichuan University Chengdu 610041 China
| | - Fangdong Hu
- School of Chemistry and Chemical Engineering Linyi University Linyi 276005 China
| | - Ying Xia
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy Sichuan University Chengdu 610041 China
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26
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Jiang ZT, Huang J, Zeng Y, Hu F, Xia Y. Rhodium Catalyzed Regioselective C-H Allylation of Simple Arenes via C-C Bond Activation of Gem-difluorinated Cyclopropanes. Angew Chem Int Ed Engl 2021; 60:10626-10631. [PMID: 33599074 DOI: 10.1002/anie.202016258] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/05/2021] [Indexed: 01/13/2023]
Abstract
Herein, we report a rhodium catalyzed directing-group free regioselective C-H allylation of simple arenes. Readily available gem-difluorinated cyclopropanes can be employed as highly reactive allyl surrogates via a sequence of C-C and C-F bond activation, providing allyl arene derivatives in good yields with high regioselectivity under mild conditions. The robust methodology enables facile late-stage functionalization of complex bioactive molecules. The high efficiency of this reaction is also demonstrated by the high turnover number (TON, up to 1700) of the rhodium catalyst on gram-scale experiments. Preliminary success on kinetic resolution of this transformation is achieved, providing a promising access to enantio-enriched gem-difluorinated cyclopropanes.
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Affiliation(s)
- Zhong-Tao Jiang
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China
| | - Jiangkun Huang
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China
| | - Yaxin Zeng
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China
| | - Fangdong Hu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi, 276005, China
| | - Ying Xia
- West China School of Public Health and West China Fourth Hospital, and State Key Laboratory of Biotherapy, Sichuan University, Chengdu, 610041, China
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27
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Zhang ZZ, Liao G, Chen HM, Shi BF. Thioamide-Directed Cp*Co(III)-Catalyzed C-H Allylation of Ferrocenes. Org Lett 2021; 23:2626-2631. [PMID: 33711894 DOI: 10.1021/acs.orglett.1c00533] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Herein, the first Cp*Co(III)-catalyzed C-H allylation of ferrocene thioamides with allyl carbonates has been developed. This reaction is compatible with a wide range of functional groups, providing various allylated ferrocene derivatives in up to 90% yields. In addition, the C-H allylation protocol is also compatible with the use of vinylcyclopropanes as allylating reagents by merging C-H and C-C activation into one catalytic system. Mechanistic studies revealed that the thiocarbonyl-directing group plays a vital role in C-H activation.
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Affiliation(s)
- Zhuo-Zhuo Zhang
- School of Food and Biological Engineering, Chengdu University, Chengdu, Sichuan 610106, China
| | - Gang Liao
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Hao-Ming Chen
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310027, China.,Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, 450001, China
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28
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Cobalt-catalyzed C H activation of N-carbamoyl indoles or benzamides with maleimides: Synthesis of imidazo[1,5-a]indole- or isoindolone-incorporated spirosuccinimides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152872] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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29
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30
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Mo J, Messinis AM, Oliveira JCA, Demeshko S, Meyer F, Ackermann L. Iron-Catalyzed Triazole-Enabled C–H Activation with Bicyclopropylidenes. ACS Catal 2021. [DOI: 10.1021/acscatal.0c04748] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jiayu Mo
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Antonis M. Messinis
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Serhiy Demeshko
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
| | - Franc Meyer
- Institut für Anorganische Chemie, Georg-August-Universität Göttingen, Tammannstraße 4, 37077 Göttingen, Germany
- WISCh (Wöhler-Research Institute for Sustainable Chemistry), 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
- WISCh (Wöhler-Research Institute for Sustainable Chemistry), Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
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31
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Bai D, Liu S, Chen J, Yu Y, Wang M, Chang J, Lan Y, Li X. Mechanistic studies on nickel-catalyzed enantioselective [3 + 2] annulation for γ-butenolide synthesis via C–C activation of diarylcyclopropenones. Org Chem Front 2021. [DOI: 10.1039/d1qo00322d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Detailed mechanistic studies on Ni-catalyzed C–C activation of cyclopropenones, and enantioselective [3 + 2] annulation with α-CF3 enones or 1,2-diones toward the efficient synthesis of γ-butenolides.
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Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Song Liu
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
- Chongqing Key Laboratory of Environmental Materials and Remediation Technologies
| | - Junyan Chen
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Yanjiang Yu
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Manman Wang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
| | - Yu Lan
- School of Chemistry and Chemical Engineering
- Chongqing University
- Chongqing 400030
- China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation
- School of Chemistry and Chemical Engineering
- Henan Normal University
- Xinxiang 453007
- China
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32
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Kumar P, Nagtilak PJ, Kapur M. Transition metal-catalyzed C–H functionalizations of indoles. NEW J CHEM 2021. [DOI: 10.1039/d1nj01696b] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This review summarises a wide range of transformations on the indole skeleton, including arylation, alkenylation, alkynylation, acylation, nitration, borylation, and amidation, using transition-metal catalyzed C–H functionalization as the key step.
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Affiliation(s)
- Pravin Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Prajyot Jayadev Nagtilak
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India
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33
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Azizollahi H, García-López JA. Recent Advances on Synthetic Methodology Merging C-H Functionalization and C-C Cleavage. Molecules 2020; 25:E5900. [PMID: 33322116 PMCID: PMC7764206 DOI: 10.3390/molecules25245900] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/09/2020] [Accepted: 12/10/2020] [Indexed: 02/08/2023] Open
Abstract
The functionalization of C-H bonds has become a major thread of research in organic synthesis that can be assessed from different angles, for instance depending on the type of catalyst employed or the overall transformation that is carried out. This review compiles recent progress in synthetic methodology that merges the functionalization of C-H bonds along with the cleavage of C-C bonds, either in intra- or intermolecular fashion. The manuscript is organized in two main sections according to the type of substrate in which the cleavage of the C-C bond takes place, basically attending to the scission of strained or unstrained C-C bonds. Furthermore, the related research works have been grouped on the basis of the mechanistic aspects of the different transformations that are carried out, i.e.,: (a) classic transition metal catalysis where organometallic intermediates are involved; (b) processes occurring via radical intermediates generated through the use of radical initiators or photochemically; and (c) reactions that are catalyzed or mediated by suitable Lewis or Brønsted acid or bases, where molecular rearrangements take place. Thus, throughout the review a wide range of synthetic approaches show that the combination of C-H and C-C cleavage in single synthetic operations can serve as a platform to achieve complex molecular skeletons in a straightforward manner, among them interesting carbo- and heterocyclic scaffolds.
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Affiliation(s)
- Hamid Azizollahi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran
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34
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Liu S, Jiang H, Liu W, Zhu X, Hao XQ, Song MP. Ruthenium-Catalyzed C(sp 2)-H Bond Bisallylation with Imidazopyridines as Directing Groups. J Org Chem 2020; 85:15167-15182. [PMID: 33140953 DOI: 10.1021/acs.joc.0c02029] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A Ru(II)-catalyzed bisallylation of imidazopyridines with vinylcyclopropanes or vinyl cyclic carbonate has been successfully realized. Notably, pharmacophore imidazopyridine was utilized as an intrinsic directing group, which gave access to value-added bisallylated products in high yields via double tandem C-H and C-C/C-O activation. The current methodology was featured with broad substrate scope, good functional group compatibility, and operational simplicity.
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Affiliation(s)
- Shuang Liu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Hui Jiang
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Wannian Liu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xinju Zhu
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Xin-Qi Hao
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
| | - Mao-Ping Song
- College of Chemistry, Zhengzhou University, No. 100 of Science Road, Zhengzhou, Henan 450001, P. R. China
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35
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Ghosh P, Kwon NY, Kim S, Han S, Lee SH, An W, Mishra NK, Han SB, Kim IS. C−H Methylation of Iminoamido Heterocycles with Sulfur Ylides**. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010958] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Prithwish Ghosh
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Na Yeon Kwon
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Saegun Kim
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Sangil Han
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Suk Hun Lee
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Won An
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | | | - Soo Bong Han
- Division of Bio & Drug Discovery Korea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry University of Science and Technology Daejeon 34113 Republic of Korea
| | - In Su Kim
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
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36
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Ghosh P, Kwon NY, Kim S, Han S, Lee SH, An W, Mishra NK, Han SB, Kim IS. C−H Methylation of Iminoamido Heterocycles with Sulfur Ylides**. Angew Chem Int Ed Engl 2020; 60:191-196. [DOI: 10.1002/anie.202010958] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 09/01/2020] [Indexed: 12/12/2022]
Affiliation(s)
- Prithwish Ghosh
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Na Yeon Kwon
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Saegun Kim
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Sangil Han
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Suk Hun Lee
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | - Won An
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
| | | | - Soo Bong Han
- Division of Bio & Drug Discovery Korea Research Institute of Chemical Technology Daejeon 34114 Republic of Korea
- Department of Medicinal and Pharmaceutical Chemistry University of Science and Technology Daejeon 34113 Republic of Korea
| | - In Su Kim
- School of Pharmacy Sungkyunkwan University Suwon 16419 Republic of Korea
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37
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Yang Z, Yue Q, Yang M, Zhang H, Cui X. Ru(II)-Catalyzed Tunable Cascade Reaction via C–H/C–C Bond Cleavage. J Org Chem 2020; 85:12960-12970. [DOI: 10.1021/acs.joc.0c01614] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zi Yang
- Department Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Qi Yue
- Department Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Mengqi Yang
- Department Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Hong Zhang
- Department Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Xiuling Cui
- Department Engineering Research Centre of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, Key Laboratory of Precision Medicine and Molecular Diagnosis of Fujian Universities, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
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38
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Yang J, Mori Y, Yamanaka M, Yoshikai N. Cobalt‐Catalyzed Intramolecular Hydroacylation Involving Cyclopropane Cleavage. Chemistry 2020; 26:8302-8307. [DOI: 10.1002/chem.202001223] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/09/2020] [Indexed: 11/06/2022]
Affiliation(s)
- Junfeng Yang
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
- Department of ChemistryFudan University 2005 Songhu Road Shanghai 2000438 P.R. China
| | - Yuto Mori
- Department of ChemistryFaculty of ScienceRikkyo University 3–41-1 Nishi-Ikebukuro, Toshima-ku Tokyo 171-8501 Japan
| | - Masahiro Yamanaka
- Department of ChemistryFaculty of ScienceRikkyo University 3–41-1 Nishi-Ikebukuro, Toshima-ku Tokyo 171-8501 Japan
| | - Naohiko Yoshikai
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Singapore 637371 Singapore
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39
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Kim YL, Park SA, Kim JH. Cobalt-Catalyzed Direct C(sp2
)-H Alkylation with Unactivated Alkenes. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000565] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ye Lim Kim
- Department of Chemistry (BK21 Plus).; Institution Research Institute of Natural Science; Gyeongsang National University; 52828 Jinju Korea
| | - Sun-a Park
- Department of Chemistry (BK21 Plus).; Institution Research Institute of Natural Science; Gyeongsang National University; 52828 Jinju Korea
| | - Ju Hyun Kim
- Department of Chemistry (BK21 Plus).; Institution Research Institute of Natural Science; Gyeongsang National University; 52828 Jinju Korea
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40
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Chen C, Wang H, Sun Y, Cui J, Xie J, Shi Y, Yu S, Hong X, Lu Z. Iron-Catalyzed Asymmetric Hydrosilylation of Vinylcyclopropanes via Stereospecific C-C Bond Cleavage. iScience 2020; 23:100985. [PMID: 32240952 PMCID: PMC7115165 DOI: 10.1016/j.isci.2020.100985] [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: 01/14/2020] [Revised: 02/06/2020] [Accepted: 03/10/2020] [Indexed: 11/17/2022] Open
Abstract
An iron-catalyzed highly anti-Markovnikov selective, enantioselective hydrosilylation of vinylcyclopropanes with PhSiH3 was reported for the preparation of valuable chiral allylic silanes via stereospecific C-C bond cleavage. Simultaneously, difficultly prepared chiral VCPs could be also obtained with moderate to excellent enantioselectivity via this kinetic resolution pathway. The chiral Z-allylic silanes could be converted to various chiral allylic derivatives. A possible mechanism via an iron-silyl species was proposed based on experimental and computational studies. Iron-catalyzed 1,5-hydrosilylation of VCPs via C-C bond cleavage was first established Chiral allyl silanes and chiral VCPs were obtained with high enantioselectivity Various chiral allylic derivatives were delivered from chiral Z-allylic silanes A possible mechanism via an iron-silyl species was proposed
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Affiliation(s)
- Chenhui Chen
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Hongliang Wang
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yufeng Sun
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jiayan Cui
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jianbo Xie
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Yang Shi
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Shijia Yu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China.
| | - Zhan Lu
- Department of Chemistry, Zhejiang University, Hangzhou, Zhejiang 310058, China.
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41
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Zhu C, Kuniyil R, Jei BB, Ackermann L. Domino C–H Activation/Directing Group Migration/Alkyne Annulation: Unique Selectivity by d6-Cobalt(III) Catalysts. ACS Catal 2020. [DOI: 10.1021/acscatal.9b05413] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Cuiju Zhu
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Rositha Kuniyil
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077 Göttingen, Germany
| | - Becky B. Jei
- 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
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42
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Bai D, Yu Y, Guo H, Chang J, Li X. Nickel(0)‐Catalyzed Enantioselective [3+2] Annulation of Cyclopropenones and α,β‐Unsaturated Ketones/Imines. Angew Chem Int Ed Engl 2020; 59:2740-2744. [DOI: 10.1002/anie.201913130] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/29/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Yanjiang Yu
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Haiming Guo
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
- School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
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43
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Bai D, Yu Y, Guo H, Chang J, Li X. Nickel(0)‐Catalyzed Enantioselective [3+2] Annulation of Cyclopropenones and α,β‐Unsaturated Ketones/Imines. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913130] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Dachang Bai
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Yanjiang Yu
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Haiming Guo
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Junbiao Chang
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
| | - Xingwei Li
- Henan Key Laboratory of Organic Functional Molecule and Drug InnovationCollaborative Innovation Center of Henan Province for Green Manufacturing of Fine ChemicalsKey Laboratory of Green Chemical Media and ReactionsMinistry of EducationSchool of Chemistry and Chemical EngineeringHenan Normal University Xinxiang 453007 China
- School of Chemistry and Chemical EngineeringShaanxi Normal University (SNNU) Xi'an 710062 China
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44
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Han JF, Guo P, Zhang XG, Liao JB, Ye KY. Recent advances in cobalt-catalyzed allylic functionalization. Org Biomol Chem 2020; 18:7740-7750. [PMID: 32940308 DOI: 10.1039/d0ob01581d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Unlike many other state-of-the-art transition-metal-catalyzed allylic substitutions, cobalt-catalyzed allylic substitution has received much less attention from synthetic chemists for a long time despite the fact that cobalt is an earth-abundant, low-cost and thus much more sustainable option as either a reagent or a catalyst in organic synthesis. Recently, there has been an upsurge in the use of cobalt catalysis in allylic functionalization reactions, including allylic substitution, nucleophilic allylation, and Heck-type allylic functionalization, to construct synthetically significant building blocks featuring a double bond available for diverse downstream synthetic manipulations. This review highlights the current development of cobalt catalysis in allylic functionalization with an in-depth discussion of the reaction scope and mechanistic insights.
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Affiliation(s)
- Jun-Fa Han
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China.
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45
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Wang Q, Shi L, Liu S, Zhi C, Fu LR, Zhu X, Hao XQ, Song MP. Solvent-free and room temperature microwave-assisted direct C7 allylation of indolines via sequential C–H and C–C activation. RSC Adv 2020; 10:10883-10887. [PMID: 35492909 PMCID: PMC9050424 DOI: 10.1039/d0ra02016h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 03/04/2020] [Indexed: 01/08/2023] Open
Abstract
A Ru or Rh-catalyzed efficient and atom-economic C7 allylation of indolines with vinylcyclopropanes was developed via sequential C–H and C–C activation. A wide range of substrates were well tolerated to afford the corresponding allylated indolines in high yields and E/Z selectivities under microwave irradiation. The obtained allylated indolines could further undergo transformations to afford various value-added chemicals. Importantly, this reaction proceeded at room temperature under solvent-free conditions. A Ru or Rh-catalyzed direct C7 allylation of indolines with vinylcyclopropanes via sequential C–H/C–C activation under microwave irradiation has been disclosed.![]()
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Affiliation(s)
- Qiuling Wang
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Linlin Shi
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Shuang Liu
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Changlei Zhi
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Lian-Rong Fu
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Xinju Zhu
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Xin-Qi Hao
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P. R. China
| | - Mao-Ping Song
- College of Chemistry
- Zhengzhou University
- Zhengzhou
- P. R. China
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46
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Kumar M, Raziullah, Khan AA, Ahmad A, Dutta HS, Kant R, Koley D. Cu(II)-Mediated Cross-Dehydrogenative Coupling of Indolines with Sulfonamides, Carboxamides, and Amines. J Org Chem 2019; 84:13624-13635. [PMID: 31566988 DOI: 10.1021/acs.joc.9b01893] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A facile and efficient Cu-mediated protocol for the cross-dehydrogenative coupling of indoline with sulfonamides, carboxamides, and anilines is reported. The reaction takes place through Cu-mediated C7-H activation via a 6-membered metallacycle to afford the amide and amine derivatives in good yields with a wide range of functional group tolerance. The importance of the protocol has been demonstrated by synthesizing the antiproliferative agent, ER-67836.
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Affiliation(s)
- Mohit Kumar
- Academy of Scientific and Innovative Research , New Delhi 110001 , India
| | | | - Afsar Ali Khan
- Academy of Scientific and Innovative Research , New Delhi 110001 , India
| | | | | | | | - Dipankar Koley
- Academy of Scientific and Innovative Research , New Delhi 110001 , India
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47
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Xu L, Liu K, Duan X. Iron‐Catalyzed Room Temperature Cross‐Couplings of Bromophenols with Aryl Grignard Reagents. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900839] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Li‐Chen Xu
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
| | - Kun‐Ming Liu
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
| | - Xin‐Fang Duan
- College of ChemistryBeijing Normal University Beijing 100875 People's Republic of China
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48
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Shah TA, De PB, Pradhan S, Banerjee S, Punniyamurthy T. Exploiting Strained Rings in Chelation Guided C−H Functionalization: Integration of C−H Activation with Ring Cleavage. Chem Asian J 2019; 14:4520-4533. [DOI: 10.1002/asia.201901067] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/17/2019] [Indexed: 02/01/2023]
Affiliation(s)
- Tariq A. Shah
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Pinaki Bhusan De
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Sourav Pradhan
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
| | - Sonbidya Banerjee
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039 India
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49
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Tanaka R, Tanimoto I, Kojima M, Yoshino T, Matsunaga S. Imidate as the Intact Directing Group for the Cobalt-Catalyzed C–H Allylation. J Org Chem 2019; 84:13203-13210. [DOI: 10.1021/acs.joc.9b01972] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ryo Tanaka
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Iku Tanimoto
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Masahiro Kojima
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Tatsuhiko Yoshino
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
| | - Shigeki Matsunaga
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan
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50
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Hu Z, Hu XQ, Zhang G, Gooßen LJ. Ring-Opening Ortho-C–H Allylation of Benzoic Acids with Vinylcyclopropanes: Merging Catalytic C–H and C–C Activation Concepts. Org Lett 2019; 21:6770-6773. [DOI: 10.1021/acs.orglett.9b02393] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Zhiyong Hu
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Xiao-Qiang Hu
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Guodong Zhang
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
| | - Lukas J. Gooßen
- Lehrstuhl für Organische Chemie I, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany
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