201
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Wang Z, Cheng J, Ding W, Wang D. C(sp3)–H Amination Catalyzed by Ir(Me)-Porphyrin: A Computational Study. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Zihao Wang
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Junhui Cheng
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Wanjian Ding
- Key Laboratory of Theoretical and Computational Photochemistry, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Dongqi Wang
- State Key Laboratory of Fine Chemicals, Liaoning Key Laboratory for Catalytic Conversion of Carbon Resources, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
- Multidisciplinary Initiative Center, CAS-HKU Joint Laboratory of Metallomics on Health and Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
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202
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Babu SA, Aggarwal Y, Patel P, Tomar R. Diastereoselective palladium-catalyzed functionalization of prochiral C(sp 3)-H bonds of aliphatic and alicyclic compounds. Chem Commun (Camb) 2022; 58:2612-2633. [PMID: 35113087 DOI: 10.1039/d1cc05649b] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We highlight the reported developments of the palladium-catalyzed C-H activation and functionalization of the inactive/unreactive prochiral C(sp3)-H bonds of aliphatic and alicyclic compounds. There exist numerous classical methods for generating contiguous stereogenic centers in a compound with a high degree of stereocontrol. Along similar lines, the Pd(II)-catalyzed, directing group-aided functionalization of inactive prochiral/diastereotopic C(sp3)-H bonds have been exploited to accomplish the stereoselective construction of stereo-arrays in organic compounds. We present a concise discussion on how specific strategies consisting of Pd(II)-catalyzed, directing group-aided C(sp3)-H functionalization have been utilized to generate two or more stereogenic centers in aliphatic and alicyclic compounds.
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Affiliation(s)
- Srinivasarao Arulananda Babu
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Yashika Aggarwal
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Pooja Patel
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
| | - Radha Tomar
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Mohali, Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O., Punjab, 140306, India.
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203
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Su B, Hartwig JF. Development of Chiral Ligands for the Transition‐Metal‐Catalyzed Enantioselective Silylation and Borylation of C−H Bonds. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202113343] [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]
Affiliation(s)
- Bo Su
- State Key Laboratory of Medical Chemical Biology College of Pharmacy Nankai University 38 Tongyan Road, Jinnan District Tianjin 300350 P. R. China
| | - John F. Hartwig
- Department of Chemistry University of California, Berkeley Berkeley CA 94720 USA
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204
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Hu QP, Liu YT, Liu YZ, Pan F. Photoinduced remote regioselective radical alkynylation of unactivated C-H bonds. Chem Commun (Camb) 2022; 58:2295-2298. [PMID: 35075463 DOI: 10.1039/d1cc06885g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A method for the remote regioselective alkynylation of unactivated C(sp3)-H bonds in diverse aliphatic amides by photogenerated amidyl radicals has been developed. The site-selectivity is dominated via a 1,5-hydrogen atom transfer (HAT) process of the amide. Mild reaction conditions and high regioselectivity are demonstrated in this methodology.
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Affiliation(s)
- Qu-Ping Hu
- College of Chemistry and Materials Science, Sichuan Normal University, 5 Jingan Road, Chengdu 610068, P. R. China.
| | - Yu-Tao Liu
- College of Chemistry and Materials Science, Sichuan Normal University, 5 Jingan Road, Chengdu 610068, P. R. China.
| | - Yong-Ze Liu
- College of Chemistry and Materials Science, Sichuan Normal University, 5 Jingan Road, Chengdu 610068, P. R. China.
| | - Fei Pan
- College of Chemistry and Materials Science, Sichuan Normal University, 5 Jingan Road, Chengdu 610068, P. R. China.
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205
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Yamane M, Kanzaki Y, Mitsunuma H, Kanai M. Titanium(IV) Chloride-Catalyzed Photoalkylation via C(sp 3)-H Bond Activation of Alkanes. Org Lett 2022; 24:1486-1490. [PMID: 35166548 DOI: 10.1021/acs.orglett.2c00138] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Despite the sophistication of C-H functionalization as one of the most powerful tools in organic synthesis, methodology for performing hydrogen-atom transfer of unactivated alkanes remains rather scarce. Herein, we describe chlorine radical-catalyzed C(sp3)-H photoalkylation using titanium(IV) chloride via a ligand-to-metal charge transfer process. Enabled by the unique properties of this abundant metal salt, the reaction not only effected the coupling of various alkanes with radical acceptors but also was shown to be applicable to direct photoalkylation of aromatic ketones.
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Affiliation(s)
- Mina Yamane
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yamato Kanzaki
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Harunobu Mitsunuma
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Motomu Kanai
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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206
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Ramesh P, Sreenivasulu C, Kishore DR, Srinivas D, Gorantla KR, Mallik BS, Satyanarayana G. Recyclable Aliphatic Nitrile-Template Enabled Remote meta-C-H Functionalization at Room Temperature. J Org Chem 2022; 87:2204-2221. [PMID: 35143206 DOI: 10.1021/acs.joc.1c02865] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This article describes the development of a new aliphatic nitrile-template-directed remote meta-selective C-H olefin functionalization reaction of arenes. Remarkably, unlike the previous reports, this process is feasible at room temperature and enabled the formation of products with excellent regioselectivity. The present protocol encompasses a broad spectrum of substituted dihydrocinnamic acids and olefins, producing meta-C-H olefinated products (up to 96% yield). In addition, the efficacy of the present method has been showcased by the synthesis of various drug analogues (e.g., cholesterol, estrone, ibuprofen, and naproxen). Significantly, the robustness of meta-olefination was also demonstrated by gram-scale synthesis. The new nitrile-based meta-directing template, in particular, could be easily synthesized in two steps and recycled under mild conditions.
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Affiliation(s)
- Perla Ramesh
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | | | - Dakoju Ravi Kishore
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | - Dasari Srinivas
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | - Koteswara Rao Gorantla
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | - Bhabani S Mallik
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
| | - Gedu Satyanarayana
- Department of Chemistry, Indian Institute of Technology, Hyderabad, Sangareddy, Kandi, Telangana 502 285, India
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207
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Sharma R, Yadav RK, Jain M, Joshi J, Chaudhary S. Oxidant-Switched Palladium-Catalyzed Regioselective Mono- versus Bis- ortho-Aroylation of 1-Aryl-1 H-indazoles with Aldehydes via C-H Bond Activation. J Org Chem 2022; 87:2668-2685. [PMID: 35119847 DOI: 10.1021/acs.joc.1c02628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly efficient oxidant-switched palladium-catalyzed regioselective C(sp2)-H/C(sp2)-H cross-dehydrogenative coupling (CDC) for direct mono/bis-ortho-aroylation of substituted 1-phenyl-1H-indazoles 1a-j with various substituted aldehydes 3a-t via C(sp2)-H bond activation has been developed. In this study, Pd-catalyzed chelation-assisted mono- or bis-aroylation of substituted 1-phenyl-1H-indazoles depends on the type of oxidant being used for the CDC reaction. While mono-ortho-aroylation of substituted 1-phenyl-1H-indazole was obtained using dicumylperoxide (DCP) as the oxidant, the bis-ortho-aroylation product has been afforded by the use of tert-butyl hydroperoxide (TBHP). Regardless of the greater activity at the C-3 position of 1H-indazoles, the greater coordinating capacity of the N atom directed the aroylating group to the ortho position, leaving behind the nondirected metalation pathway. The Pd-catalyzed operationally simplified methodology proceeded in the presence of oxidants with either DCP or TBHP in dichloroethane as the solvent at 110 °C for 16 h, which generated a miscellaneous variety of monosubstituted o-benzoyl/acyl-1-aryl-1H-indazoles 4a-t/5a-i and bis-substituted o-benzoyl-1-aryl-1H-indazoles 6a-j in ≤88% yields. The probable mechanistic pathway involves a free radical chelation-assisted approach that could be accomplished by the addition of an in situ-generated oxidant-promoted benzoyl/acyl radical to the ortho position of 1-phenyl-1H-indazoles. A wide range of substrates, a high functional group tolerance, gram-scale synthesis, control/competitive experiments, and a variety of synthetic applications further exemplify the versatility of the developed methodology.
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Affiliation(s)
- Richa Sharma
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Ravi Kant Yadav
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Mukesh Jain
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Jyoti Joshi
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India.,Laboratory of Bioactive Heterocycles and Catalysis, Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli (Transit Campus), Bijnor-Sisendi Road, Near CRPF Base Camp, Sarojini Nagar, Lucknow 226002, India
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208
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Zurakowski JA, Austen BJ, Drover MW. Exterior decorating: Lewis acid secondary coordination spheres for cooperative reactivity. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.01.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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209
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Feng T, Wang S, Liu Y, Liu S, Qiu Y. Electrochemical Desaturative β‐Acylation of Cyclic
N
‐Aryl Amines. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Tian Feng
- State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic Matter College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Siyi Wang
- State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic Matter College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Yin Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic Matter College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Shouzhuo Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic Matter College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
| | - Youai Qiu
- State Key Laboratory and Institute of Elemento-Organic Chemistry Frontiers Science Center for New Organic Matter College of Chemistry Nankai University 94 Weijin Road Tianjin 300071 China
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210
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Dutta U, Maiti D. Emergence of Pyrimidine-Based meta-Directing Group: Journey from Weak to Strong Coordination in Diversifying meta-C-H Functionalization. Acc Chem Res 2022; 55:354-372. [PMID: 35021007 DOI: 10.1021/acs.accounts.1c00629] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
C-H activation has emerged as a powerful transformative synthetic tool to construct complex molecular frameworks, which are ubiquitous in natural products, medicines, dyes, polymers, and many more. However, reactivity and selectivity, arising from the inertness of C-H bonds and their overabundance in organic molecules, are the two major fundamental challenges in developing various carbon-carbon (C-C) and carbon-heteroatom (C-X) bond formation reactions via C-H activation technique. Functional groups with coordinating capacity to the transition metal catalysts, profoundly known as directing groups (DGs), have shown great promise in exerting selective C-H activation, often called site-selective or regioselective transformation of a target molecule. Advent of directing group (DG)-assisted strategies not only has resolved the selectivity issues but also offers a unique solution to the rapid synthesis of complex molecules in a convenient and predictable manner. Our laboratory, in this regard, is fascinated by the prospect of DG-assisted distal C-H functionalization of arenes, in which the target C-H bond is remotely located from the existing directing group. Notably, in opposition to proximal ortho-C-H activation, which proceeded via an energetically favorable five- to seven-membered metallacycle, distal C-H activation remained a formidable challenge as it required formation of a large macrocyclic metallacycle. Therefore, designing a suitable directing template that would maintain the required distance and geometric relationship between the target C-H bond and the appended directing auxiliary in order to ensure the prolific delivery of the metal catalyst to the closest proximity of targeted distal C-H bond was the key to success. In this regard, the Yu group devised an elegant "U-shaped" template for the first time to execute distal meta-C-H activation recruiting a cyano-based directing group. Our initial effort to diversify the scope of meta-C-H functionalization using a cyano-based template led us to realize that the "cyano-based DGs" are intrinsically limited with weak coordinating ability, competitive binding mode (end-on vs side-on), and incompatibility with acidic and basic reaction conditions. In search of a robust directing auxiliary, we were intrigued by the possibility of using the strongly coordinating ability of pyrimidine and quinoline-based DGs.In this Account, we describe our journey from the weakly coordinating cyano-based DG to the strongly coordinating pyrimidine-based DG to achieve diverse meta-C-H functionalization of electronically and sterically unbiased arenes. While some of the functionalizations were achieved by finding suitable reaction conditions, others were led by mechanistic understanding. Notably, initial development in this realm was constrained with short linkers, in which the DG was attached to the arene of interest through 2-4 atoms. In later studies, we demonstrated that the selective meta-C-H activation can be attained even though the DG is 10-atoms away from the targeted arene. More importantly, a transient DG was successfully utilized to deliver meta-C-H olefination of arenes via in situ imine formation, which provided a step-economic route to meta-C-H activation.We hope that this Account will stimulate further template design and will provide a guiding platform for the future development of distal meta-C-H functionalization.
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Affiliation(s)
- Uttam Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
- Tokyo Tech World Research Hub Initiative (WRHI) Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Tokyo 152-8550 Japan
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211
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Čorić I, Dhankhar J. Introduction to Spatial Anion Control for Direct C–H Arylation. Synlett 2022. [DOI: 10.1055/s-0040-1719860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
AbstractC–H activation of functionally rich molecules without the need for directing groups promises shorter organic syntheses and late-stage diversification of molecules for drug discovery. We highlight recent examples of palladium-catalyzed nondirected functionalization of C–H bonds in arenes as limiting substrates with a focus on the development of the concept of spatial anion control for direct C–H arylation.1 C–H Activation and the CMD Mechanism2 Nondirected C–H Functionalizations of Arenes as Limiting Substrates3 Nondirected C–H Arylation4 Spatial Anion Control for Direct C–H Arylation5 Coordination Chemistry with Spatial Anion Control6 Conclusion
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212
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Computational Study of Key Mechanistic Details for a Proposed Copper (I)-Mediated Deconstructive Fluorination of N-Protected Cyclic Amines. Top Catal 2022; 65:418-432. [PMID: 35197715 DOI: 10.1007/s11244-021-01443-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Using calculations, we show that a proposed Cu(I)-mediated deconstructive fluorination of N-benzoylated cyclic amines with Selectfluor® is feasible and may proceed through: (a) substrate coordination to a Cu(I) salt, (b) iminium ion formation followed by conversion to a hemiaminal, and (c) fluorination involving C-C cleavage of the hemiaminal. The iminium ion formation is calculated to proceed via a F-atom coupled electron transfer (FCET) mechanism to form, formally, a product arising from oxidative addition coupled with electron transfer (OA + ET). The subsequent β-C-C cleavage/fluorination of the hemiaminal intermediate may proceed via either ring-opening or deformylative fluorination pathways. The latter pathway is initiated by opening of the hemiaminal to give an aldehyde, followed by formyl H-atom abstraction by a TEDA2+ radical dication, decarbonylation, and fluorination of the C3-radical center by another equivalent of Selectfluor®. In general, the mechanism for the proposed Cu(I)- mediated deconstructive C-H fluorination of N-benzoylated cyclic amines (LH) by Selectfluor® was calculated to proceed analogously to our previously reported Ag(I)-mediated reaction. In comparison to the Ag(I)-mediated process, in the Cu(I)-mediated reaction the iminium ion formation and hemiaminal fluorination have lower associated energy barriers, whereas the product release and catalyst re-generation steps have higher barriers.
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213
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Abstract
![]()
Late-stage functionalization
of C–H bonds (C–H LSF)
can provide a straightforward approach to the efficient synthesis
of functionalized complex molecules. However, C–H LSF is challenging
because the C–H bond must be functionalized in the presence
of various other functional groups. In this Perspective, we evaluate
aromatic C–H LSF on the basis of four criteria—reactivity,
chemoselectivity, site-selectivity, and substrate scope—and
provide our own views on current challenges as well as promising strategies
and areas of growth going forward.
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Affiliation(s)
- Li Zhang
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
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214
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Buglioni L, Raymenants F, Slattery A, Zondag SDA, Noël T. Technological Innovations in Photochemistry for Organic Synthesis: Flow Chemistry, High-Throughput Experimentation, Scale-up, and Photoelectrochemistry. Chem Rev 2022; 122:2752-2906. [PMID: 34375082 PMCID: PMC8796205 DOI: 10.1021/acs.chemrev.1c00332] [Citation(s) in RCA: 208] [Impact Index Per Article: 104.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Indexed: 02/08/2023]
Abstract
Photoinduced chemical transformations have received in recent years a tremendous amount of attention, providing a plethora of opportunities to synthetic organic chemists. However, performing a photochemical transformation can be quite a challenge because of various issues related to the delivery of photons. These challenges have barred the widespread adoption of photochemical steps in the chemical industry. However, in the past decade, several technological innovations have led to more reproducible, selective, and scalable photoinduced reactions. Herein, we provide a comprehensive overview of these exciting technological advances, including flow chemistry, high-throughput experimentation, reactor design and scale-up, and the combination of photo- and electro-chemistry.
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Affiliation(s)
- Laura Buglioni
- Micro
Flow Chemistry and Synthetic Methodology, Department of Chemical Engineering
and Chemistry, Eindhoven University of Technology, Het Kranenveld, Bldg 14—Helix, 5600 MB, Eindhoven, The Netherlands
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Fabian Raymenants
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Aidan Slattery
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Stefan D. A. Zondag
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
| | - Timothy Noël
- Flow
Chemistry Group, van ’t Hoff Institute for Molecular Sciences
(HIMS), Universiteit van Amsterdam (UvA), Science Park 904, 1098 XH, Amsterdam, The Netherlands
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215
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Chen L, Wang Z, Wang Y, Hao L, Xu X, Wu G, Ji Y. Rhodium(III)-catalyzed cascade C-H functionalization/annulation of sulfoximines with iodonium ylides for the synthesis of cyclohexanone-1,2-benzothiazines. Org Biomol Chem 2022; 20:887-894. [PMID: 35018957 DOI: 10.1039/d1ob02110a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A highly efficient Rh(III)-catalyzed cascade C-H activation/annulation of sulfoximines with iodonium ylides under metal-oxidant-free conditions has been reported. The fused cyclohexanone-1,2-benzothiazine scaffold is readily achieved with a one-pot process in this reaction. This protocol exhibits good functional group tolerance and moderate to excellent yields. Additionally, the olefination of the target product illustrates the promising usefulness of this strategy.
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Affiliation(s)
- Lu Chen
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Zhichao Wang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Yangyang Wang
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Liqiang Hao
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Xiaobo Xu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Gaorong Wu
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
| | - Yafei Ji
- Engineering Research Center of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
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216
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Cammarota RC, Liu W, Bacsa J, Davies HML, Sigman MS. Mechanistically Guided Workflow for Relating Complex Reactive Site Topologies to Catalyst Performance in C–H Functionalization Reactions. J Am Chem Soc 2022; 144:1881-1898. [DOI: 10.1021/jacs.1c12198] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ryan C. Cammarota
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
| | - Wenbin Liu
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - John Bacsa
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Huw M. L. Davies
- Department of Chemistry, Emory University, 1515 Dickey Drive, Atlanta, Georgia 30322, United States
| | - Matthew S. Sigman
- Department of Chemistry, University of Utah, 315 South 1400 East, Salt Lake City, Utah 84112, United States
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217
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Li F, Pei C, Koenigs RM. Photokatalytische gem‐Difluorolefinierungsreaktionen durch eine formale C−C‐Kupplungs/Defluorierungsreaktion mit Diazoacetaten. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Fang Li
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 52074 Aachen Deutschland
| | - Chao Pei
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 52074 Aachen Deutschland
| | - Rene M. Koenigs
- RWTH Aachen University Institute of Organic Chemistry Landoltweg 1 52074 Aachen Deutschland
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218
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Bhagat KK, Biswas JP, Dutta S, Maiti D. Catalytic C−H Activation
via
Four‐Membered Metallacycle Intermediate. Helv Chim Acta 2022. [DOI: 10.1002/hlca.202100192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kanhaiya Kumar Bhagat
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Jyoti Prasad Biswas
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Subhabrata Dutta
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay, Powai Mumbai 400076 India
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219
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Synthesis of C‐Oligosaccharides through Versatile C(sp3)–H Glycosylation of Glycosides. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202114993] [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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220
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Yang X, Wu C, Su W, Yu J. Mechanochemical C−X/C−H Functionalization: An Alternative Strategy Access to Pharmaceuticals. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101440] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xinjie Yang
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Chongyang Wu
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Weike Su
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
| | - Jingbo Yu
- Zhejiang University of Technology Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals Chaowang Road 18# 310014 Hangzhou CHINA
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221
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Anugu N, Thunga S, Golla S, Kokatla HP. Iodine Catalyzed C2‐H Formamidation of Quinoline
N
‐Oxides using Isocyanides: A Metal‐Free Approach. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202100883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Naveenkumar Anugu
- Department of Chemistry National Institute of Technology Warangal Warangal Telangana 506004 India
| | - Sanjeeva Thunga
- Department of Chemistry National Institute of Technology Warangal Warangal Telangana 506004 India
| | - Sivaparwathi Golla
- Department of Chemistry National Institute of Technology Warangal Warangal Telangana 506004 India
| | - Hari Prasad Kokatla
- Department of Chemistry National Institute of Technology Warangal Warangal Telangana 506004 India
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222
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Zhou X, Yeung C, Kwok Chan WT, Law G. Diastereoselective Bidirectional C(
sp
3
)−H Bond Functionalization of Piperazine Compounds. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiao‐Le Zhou
- State Key Laboratory of Chemical Biology and Drug Discovery Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong SAR People's Republic of China
- Present address: Beijing University of Chemical Technology People's Republic of China
| | - Chi‐Tung Yeung
- State Key Laboratory of Chemical Biology and Drug Discovery Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong SAR People's Republic of China
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518000 People's Republic of China
| | - Wesley Ting Kwok Chan
- State Key Laboratory of Chemical Biology and Drug Discovery Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong SAR People's Republic of China
| | - Ga‐Lai Law
- State Key Laboratory of Chemical Biology and Drug Discovery Department of Applied Biology and Chemical Technology The Hong Kong Polytechnic University, Hung Hom Kowloon Hong Kong SAR People's Republic of China
- The Hong Kong Polytechnic University Shenzhen Research Institute Shenzhen 518000 People's Republic of China
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223
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Koranne A, Kurrey K, Kumar P, Gupta S, Jha VK, Ravi R, Sahu PK, Anamika, Jha AK. Metal catalyzed C–H functionalization on triazole rings. RSC Adv 2022; 12:27534-27545. [PMID: 36276020 PMCID: PMC9516561 DOI: 10.1039/d2ra05697f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 09/19/2022] [Indexed: 12/02/2022] Open
Abstract
The present review covers advancement in the area of C–H functionalization on triazole rings, by utilizing various substrates with palladium or copper as catalysts, and resulting in the development of various substituted 1,2,3- and 1,2,4-triazoles. Synthesis of these substituted compounds is necessary from the perspective of pharmaceutical, medicinal, and materials chemistry. The present review covers advancement in the area of C–H functionalization on triazole rings, by utilizing various substrates with palladium or copper as catalysts, and resulting in the development of various substituted 1,2,3- and 1,2,4-triazoles.![]()
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Affiliation(s)
- Anushka Koranne
- Govt. Shivnath Science College, Gaurav Path, Rajnandgaon 491441, Chhattisgarh, India
| | - Khushboo Kurrey
- Govt. Shivnath Science College, Gaurav Path, Rajnandgaon 491441, Chhattisgarh, India
| | - Prashant Kumar
- Govt. Shivnath Science College, Gaurav Path, Rajnandgaon 491441, Chhattisgarh, India
| | - Sangeeta Gupta
- Govt. Shivnath Science College, Gaurav Path, Rajnandgaon 491441, Chhattisgarh, India
| | | | | | | | - Anamika
- Jawaharlal Nehru University, New Delhi, India
| | - Abadh Kishor Jha
- Govt. Shivnath Science College, Gaurav Path, Rajnandgaon 491441, Chhattisgarh, India
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224
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Ghosh T, Bhakta S. Nickel-Catalyzed Hydroarylation Reaction: A Useful Tool in Organic Synthesis. Org Chem Front 2022. [DOI: 10.1039/d2qo00826b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article describes the recent advances in the field of nickel-catalyzed hydroarylation reaction of alkenes, alkynes, and arenes. All reactions proceeded either through internal hydride transfer or in presence of...
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225
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Tan DX, Han FS. The application of C–H bond functionalization in the total syntheses of indole natural products. Org Chem Front 2022. [DOI: 10.1039/d1qo01636a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The recent advances in total synthesis of indole natural products focusing on the application of C–H bond functionalization are summarized.
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Affiliation(s)
- Dong-Xing Tan
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, China
| | - Fu-She Han
- CAS Key Lab of High-Performance Synthetic Rubber and its Composite Materials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun, Jilin 130022, China
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226
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Huang M, Tang J, Li N, Kim JK, Gong M, Zhang J, Li Y, Wu Y. A simple approach to C3-ethoxycarbonylmethylation of thiophenes/furans with diethyl bromomalonate. Org Biomol Chem 2022; 20:6459-6463. [DOI: 10.1039/d2ob00835a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient method to produce C3-malonated products was developed via a visible-light-induced radical reaction of 2-substituted thiophenes/furans with diethyl bromomalonate. The C3-ethoxycarbonylmethylation of 2-substituted thiophenes/furans exhibited broad substrate...
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227
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Shi W, Yang C, Guo L, Xia W. Photo-induced decarboxylative hydroacylation of α-oxocarboxylic acids with terminal alkynes by radical addition–translocation–cyclization in water. Org Chem Front 2022. [DOI: 10.1039/d2qo01424f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A photo-induced radical addition–translocation–cyclization (RATC) reaction of terminal alkynes and α-oxocarboxylic acids using water as the reaction medium is reported herein.
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Affiliation(s)
- Wei Shi
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Chao Yang
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Lin Guo
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
| | - Wujiong Xia
- State Key Lab of Urban Water Resource and Environment, School of Science, Harbin Institute of Technology (Shenzhen), Shenzhen, 518055, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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228
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Yue B, Wu X, Zhu C. Recent Advances in Vinyl Radical-Mediated Hydrogen Atom Transfer. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202108027] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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229
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Li Y, Liu Y, Hao D, Li C, Liu Y, Gu Y, Vaccaro L, Liu P. Cu-catalyzed direct C1–H trifluoromethylation of pyrrolo[1,2-a]quinoxalines. Tetrahedron 2022. [DOI: 10.1016/j.tet.2021.132610] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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230
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Yang X, Guo X, Yuan X, Chen B. K 2S 2O 8-promoted rearrangement of nitrones for the synthesis of benzo[ d]oxazoles. Org Chem Front 2022. [DOI: 10.1039/d2qo00680d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An efficient route for the synthesis of valuable benzoxazoles has been developed through self-oxidative cyclization with N–O bond cleavage.
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Affiliation(s)
- Xueying Yang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou, Gansu, China
| | - Xin Guo
- School of Chemistry and Chemical Engineering, North Minzu University, Yinchuan, China
| | - Xinglong Yuan
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou, Gansu, China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, Department of Chemistry, Lanzhou University, Lanzhou, Gansu, China
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231
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Liu Y, Zhu R, Liu C, Zhang D. Key role of a π–π complex in diaryl cross-coupling between aryldiazonium salts and arylboronic acids using photosensitizer-free gold/photoredox catalysis. Org Chem Front 2022. [DOI: 10.1039/d1qo01464a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In a new mechanism for photosensitizer-free visible-light-mediated gold-catalyzed cross-coupling, the π–π complex between aryldiazonium salts and arylboronic acids acts as a photoinitiator.
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Affiliation(s)
- Yanhong Liu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Rongxiu Zhu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Chengbu Liu
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
| | - Dongju Zhang
- Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, Institute of Theoretical Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P. R. China
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232
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Xu S, Nishimura K, Saito K, Hirano K, Miura M. Palladium-catalysed C–H arylation of benzophospholes with aryl halides. Chem Sci 2022; 13:10950-10960. [PMID: 36320684 PMCID: PMC9491221 DOI: 10.1039/d2sc04311d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 08/30/2022] [Indexed: 12/03/2022] Open
Abstract
A palladium-catalysed C–H arylation of benzophospholes with aryl halides has been developed. The reaction with aryl iodides and bromides proceeds well even under phosphine ligand-free Pd(OAc)2 catalysis whereas the Pd(PCy3)2 is effective for the coupling with less reactive aryl chlorides. The optimal conditions are also applicable to the double arylations with organic dihalides and annulation reaction with ortho-dihalogenated benzenes, making the corresponding benzophosphole-based acceptor–donor–acceptor-type molecules and highly condensed heteroacene-type molecules of potent interest in materials chemistry. Although there are many reports of catalytic C–H functionalisations of related benzoheteroles such as indoles, benzothiophenes, and benzofurans, this is the first successful example of the catalytic direct C–H transformation of benzophospholes, to the best of our knowledge. The preliminary optoelectronic properties of some newly synthesized benzophosphole derivatives are also investigated. A palladium-catalysed C–H arylation of benzophospholes with aryl halides has been developed to form the corresponding acceptor–donor–acceptor-type molecules and highly condensed heteroacene-type molecules of potent interest in material chemistry.![]()
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Affiliation(s)
- Shibo Xu
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University Suita Osaka 565-0871 Japan
| | - Kazutoshi Nishimura
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita Osaka 565-0871 Japan
| | - Kosuke Saito
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita Osaka 565-0871 Japan
| | - Koji Hirano
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University Suita Osaka 565-0871 Japan
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University Suita Osaka 565-0871 Japan
| | - Masahiro Miura
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University Suita Osaka 565-0871 Japan
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233
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Wu JX, Yao QX, Duan WZ, Li DC, Huang XQ, Dou JM, Wang HW. Rh III-Catalyzed heteroarylation of N-2,6-difluorophenyl arylamides with heteroaryl boronate esters. Org Chem Front 2022. [DOI: 10.1039/d1qo01868j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
An efficient strategy to aryl-heteroaryl formation via RhIII-catalyzed C–H heteroarylation of arenes with N-heterocyclic boronates has been disclosed.
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Affiliation(s)
- Jia-Xue Wu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Qing-Xia Yao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Wen-Zeng Duan
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Da-Cheng Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Xian-Qiang Huang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Jian-Min Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
| | - Huai-Wei Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China
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234
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Sasmal S, Prakash G, Dutta U, Laskar R, Lahiri GK, Maiti D. Directing Group Assisted Rhodium Catalyzed meta-CH Alkynylation of Arenes. Chem Sci 2022; 13:5616-5621. [PMID: 35694332 PMCID: PMC9116288 DOI: 10.1039/d2sc00982j] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/08/2022] [Indexed: 11/21/2022] Open
Abstract
Site-selective C-H alkynylation of arenes to produce aryl alkynes is a highly desirable transformation due to its prevalence in various natural products, drug molecules and in material sciences. To ensure...
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Affiliation(s)
- Sheuli Sasmal
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Gaurav Prakash
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Uttam Dutta
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | - Ranjini Laskar
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
| | | | - Debabrata Maiti
- IIT Bombay, Department of Chemistry Powai Mumbai 400076 India
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235
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Britton L, Docherty JH, Sklyaruk J, Cooney J, Nichol GS, Dominey AP, Thomas SP. Iron-catalysed alkene and heteroarene H/D exchange by reversible protonation of iron-hydride intermediates. Chem Sci 2022; 13:10291-10298. [PMID: 36277640 PMCID: PMC9473494 DOI: 10.1039/d2sc03802a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 08/08/2022] [Indexed: 11/21/2022] Open
Abstract
The iron-catalysed C(sp2)–H bond H/D exchange reaction using CD3OD is reported for both heterocycles and alkenes. Characterisation of the key C–H metallation intermediates provided evidence for reversible protonation of the iron hydride catalyst.
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Affiliation(s)
- Luke Britton
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, UK
| | - Jamie H. Docherty
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, UK
| | - Jan Sklyaruk
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, UK
| | - Jessica Cooney
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, UK
| | - Gary S. Nichol
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, UK
| | | | - Stephen P. Thomas
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh EH9 3FJ, UK
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236
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Long J, Ding C, Yin G. Nickel/Brønsted acid dual-catalyzed regioselective C–H bond allylation of phenols with 1,3-dienes. Org Chem Front 2022. [DOI: 10.1039/d2qo00637e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A nickel/Brønsted acid dual-catalyzed C-H bond ortho-allylation of phenols with 1,3-dienes has been developed. This methodology is readily applicable to the modification of complex pharmaceutical molecules.
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Affiliation(s)
- Jiao Long
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Chao Ding
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
| | - Guoyin Yin
- The Institute for Advanced Studies, Wuhan University, Wuhan 430072, China
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237
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Prajapati R, Gola AK, Kumar A, Jaiswal S, Tadigoppula N. o-Acetoxylation of oxo-benzoxazines via C–H activation by palladium( ii)/aluminium oxide. NEW J CHEM 2022. [DOI: 10.1039/d2nj00134a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Direct activation of sp2 C–H bonds by a palladium catalyst has received significant attention in organic chemistry.
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Affiliation(s)
- Ramanand Prajapati
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, U.P., India
| | - Ajay Kant Gola
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, U.P., India
| | - Amrendra Kumar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, U.P., India
| | - Shubham Jaiswal
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, U.P., India
| | - Narender Tadigoppula
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow, 226031, U.P., India
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238
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Liu J, Xin Y, Bai Y, She W, Wang J, Li G. A self-assembly solvothermal synthesis of SiMoV n@[Cu 6O(TZI) 3(H 2O) 6] 4· nH 2O for the efficient selective oxidation of various alkylbenzenes. NEW J CHEM 2022. [DOI: 10.1039/d2nj00308b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of SiMoVn@rht-MOF-1 were isolated via a one-pot self-assembly solvothermal synthesis, exhibiting effective catalytic activity and excellent recyclability.
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Affiliation(s)
- Jiabin Liu
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, Heilongjiang, China
| | - Yuxiang Xin
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, Heilongjiang, China
| | - Yiyang Bai
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, Heilongjiang, China
| | - Wei She
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, Heilongjiang, China
| | - Jing Wang
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, Heilongjiang, China
| | - Gaungming Li
- Key Laboratory of Functional Inorganic Material Chemistry (MOE), School of Chemistry and Materials Science, Heilongjiang University, Harbin, 150080, Heilongjiang, China
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239
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Shi Y, Bai W, Mu W, Li J, Yu J, Lian B. Research Progress on Density Functional Theory Study of Palladium-Catalyzed C—H Functionalization to Form C—X (X=O, N, F, I, …) Bonds. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202110027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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240
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Zhou Y, Li Z, Hu M, Yan Z, Lin S. Oxidation of Sulfides with SO 2F 2/H 2O 2/Base. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202111022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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241
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242
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Jung DW, Hong SC. Combinations of dual-function azide-containing crosslinkers with C-H insertion capabilities for polymeric elastomers with improved adhesion properties. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2021.110906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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243
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Hou X, Kaplaneris N, Yuan B, Frey J, Ohyama T, Messinis AM, Ackermann L. Ruthenaelectro-Catalyzed C–H Acyloxylation for Late-Stage Tyrosine and Oligopeptide Diversification. Chem Sci 2022; 13:3461-3467. [PMID: 35432858 PMCID: PMC8943857 DOI: 10.1039/d1sc07267f] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 02/09/2022] [Indexed: 11/25/2022] Open
Abstract
Ruthenaelectro(ii/iv)-catalyzed intermolecular C–H acyloxylations of phenols have been developed by guidance of experimental, CV and computational insights. The use of electricity bypassed the need for stoichiometric chemical oxidants. The sustainable electrocatalysis strategy was characterized by ample scope, and its unique robustness enabled the late-stage C–H diversification of tyrosine-derived peptides. Ruthenaelectro(ii/iv)-catalyzed intermolecular C–H acyloxylations of oligopeptides have been developed by the guidance of key experimental, CV and computational insights.![]()
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Affiliation(s)
- Xiaoyan Hou
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Nikolaos Kaplaneris
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Binbin Yuan
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Johanna Frey
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
| | - Tsuyoshi Ohyama
- 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
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Germany
- German Center for Cardiovascular Research (DZHK) Potsdamer Straße 58 10785 Berlin Germany
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244
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Wang HW, Wu JX, Li DC, Qiao YH, Yao QX, Sun WC, Dou JM. The synthesis of aryl-heteroaryl derivatives via the Rh III-catalyzed heteroarylation of arenes and heteroaromatic boronates. Org Biomol Chem 2021; 20:686-693. [PMID: 34951443 DOI: 10.1039/d1ob02201f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient RhIII-catalyzed strategy for constructing aryl-heteroaryl derivatives with removable ketoxime ether auxiliaries via direct C-H heteroarylation based on arenes and heteroaromatic boronates has been disclosed. This protocol could tolerate various pyridine, pyrimidine, pyrazole, thiophene, and furan heteroaromatic boronates well, providing the desired products with high reactivities and excellent regioselectivity. The easy synthetic accessibility may offer potential for application in the synthesis of heterocyclic drug molecules containing aryl-heteroaryl motifs.
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Affiliation(s)
- Huai-Wei Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Jia-Xue Wu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Da-Cheng Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Yu-Han Qiao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Qing-Xia Yao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Wen-Can Sun
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Jian-Min Dou
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, China.
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245
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Yue H, Zhu C, Huang L, Dewanji A, Rueping M. Advances in allylic and benzylic C-H bond functionalization enabled by metallaphotoredox catalysis. Chem Commun (Camb) 2021; 58:171-184. [PMID: 34882164 DOI: 10.1039/d1cc06285a] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Metallaphoto-catalysis has been established as a robust platform for efficient construction of a range of chemical bonds. Moreover, transformation of native functionalities such as C(sp3)-H bonds to produce functional molecules represents one of the most attractive strategies in organic synthesis. Merging two powerful methodologies, metallaphoto-catalyzed benzylic and allylic C(sp3)-H bond functionalizations provide a series of general and mild approaches for diversification of alkylbenzenes and alkenes.
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Affiliation(s)
- Huifeng Yue
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
| | - Chen Zhu
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
| | - Long Huang
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Abhishek Dewanji
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Magnus Rueping
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
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246
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Zhang Y, Yu W, Zhao C, Yan J. Dimensional Reduction of
Eu‐Based Metal‐Organic
Framework as Catalysts for Oxidation Catalysis of C(sp
3
)–H Bond. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yin Zhang
- Junior Education Department Changsha Normal University Changsha Hunan 410100 China
| | - Wei‐Dong Yu
- College of Science, Hunan University of Technology and Business Changsha Hunan 410000 China
- College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410000 China
| | - Cai‐Feng Zhao
- Hunan Institute of Nuclear Agricultural Science and Space Breeding, Hunan Academy of Agricultural Science Changsha Hunan 410000 China
| | - Jun Yan
- College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410000 China
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247
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Liu B, Romine AM, Rubel CZ, Engle KM, Shi BF. Transition-Metal-Catalyzed, Coordination-Assisted Functionalization of Nonactivated C(sp 3)-H Bonds. Chem Rev 2021; 121:14957-15074. [PMID: 34714620 PMCID: PMC8968411 DOI: 10.1021/acs.chemrev.1c00519] [Citation(s) in RCA: 186] [Impact Index Per Article: 62.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Transition-metal-catalyzed, coordination-assisted C(sp3)-H functionalization has revolutionized synthetic planning over the past few decades as the use of these directing groups has allowed for increased access to many strategic positions in organic molecules. Nonetheless, several challenges remain preeminent, such as the requirement for high temperatures, the difficulty in removing or converting directing groups, and, although many metals provide some reactivity, the difficulty in employing metals outside of palladium. This review aims to give a comprehensive overview of coordination-assisted, transition-metal-catalyzed, direct functionalization of nonactivated C(sp3)-H bonds by covering the literature since 2004 in order to demonstrate the current state-of-the-art methods as well as the current limitations. For clarity, this review has been divided into nine sections by the transition metal catalyst with subdivisions by the type of bond formation. Synthetic applications and reaction mechanism are discussed where appropriate.
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Affiliation(s)
- Bin Liu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Andrew M. Romine
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Camille Z. Rubel
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States.,Corresponding Author- (K. M. E.); (B.-F. S.)
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China,Corresponding Author- (K. M. E.); (B.-F. S.)
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248
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Zhao P, Guo Y, Luan X. Total Synthesis of Dalesconol A by Pd(0)/Norbornene-Catalyzed Three-Fold Domino Reaction and Pd(II)-Catalyzed Trihydroxylation. J Am Chem Soc 2021; 143:21270-21274. [PMID: 34894686 DOI: 10.1021/jacs.1c12118] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Herein, we describe a concise total synthesis of dalesconol A through a "polycyclization/oxidation" approach. In the polycyclization stage, a Pd(0)/NBE-catalyzed 3-fold domino reaction and a subsequent intramolecular Michael addition have been utilized for the one-step assembly of the heptacyclic molecular skeleton. In the late stage of oxidation state adjustments, a stepwise sequence including site-selective benzylic oxidation, Pd(II)-catalyzed oxime ether directed trihydroxylation, and desaturation has been adopted to introduce the oxygen functionalities and furnish the synthesis of dalesconol A. With the advantage of the late-stage amidation of three C-H bonds in a single step, the amino analogue of dalesconol A has also been obtained with high efficiency.
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Affiliation(s)
- Ping Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, People's Republic of China
| | - Yun Guo
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, People's Republic of China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, People's Republic of China.,State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, People's Republic of China
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249
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Bera A, Kabadwal LM, Bera S, Banerjee D. Recent advances on non-precious metal-catalyzed C-H functionalization of N-heteroarenes. Chem Commun (Camb) 2021; 58:10-28. [PMID: 34874036 DOI: 10.1039/d1cc05899a] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
N-Heteroarenes are widely used for numerous medicinal applications, lifesaving drugs and show utmost importance as intermediates in chemical synthesis. This feature article highlights the recent advances, from 2015 to August 2021, on sp2 and sp3 C-H bond functionalization reactions of various N-heteroarenes catalyzed by non-precious transition metals (Mn, Co, Fe, Ni, etc.). The salient features of the report are: (i) the development of newer catalysis for Csp2-H activation of N-heteroarenes and categorized into alkylation, alkenylation, borylation, cyanation, and annulation reactions, (ii) recent advances on Csp3-H bond functionalization of N-heteroarenes considering newer approaches for alkylation as well as alkenylation processes, and (iii) synthetic applications and practical utility of the catalytic protocols utilized for late-stage drug development; (iv) scope for the development of newer catalytic protocols along with mechanistic studies and detail mechanistic findings of various important processes.
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Affiliation(s)
- Atanu Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Lalit Mohan Kabadwal
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Sourajit Bera
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
| | - Debasis Banerjee
- Department of Chemistry, Laboratory of Catalysis and Organic Synthesis, Indian Institute of Technology Roorkee, Roorkee-247667, Uttarakhand, India.
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250
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Dong YJ, Zhu B, Liang YJ, Guan W, Su ZM. Origin and Regioselectivity of Direct Hydrogen Atom Transfer Mechanism of C(sp 3)-H Arylation by [W 10O 32] 4-/Ni Metallaphotoredox Catalysis. Inorg Chem 2021; 60:18706-18714. [PMID: 34823352 DOI: 10.1021/acs.inorgchem.1c02118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Polyoxometalates (POMs) have a broad array of applied platforms with well-characterized catalysis including photocatalysis to achieve aliphatic C(sp3)-H bond functionalization. However, the reaction mechanism of POMs in organic transformation remains unknown due to the complexity of POM structures. Here, a challenging [W10O32]4-/Ni metallaphotoredox-catalyzed C(sp3)-H arylation of alkane has been investigated by density functional theory (DFT) calculations. The calculation revealed that the superficial active center located in bridged oxygen of *[W10O32]4- is responsible for the abstraction of a foreign hydrogen atom and the activation of a C(sp3)-H bond. Furthermore, we discussed this activated process using the direct activation model of the C(sp3)-H σ-bond to deepen our mechanistic understanding of POM mediated C-H bond activation via the hydrogen atom transfer (HAT) pathway. Specifically, comparing three common mechanisms for nickel catalysis inducing by Ni0, NiI, and NiII to construct a C-C bond, the nickel catalytic cycle induced by the NiI active catalyst is profitable in kinetics and thermodynamics. Finally, a radical mechanism merging the ([W10O32]4--*[W10O32]4--[HW10O32]4--[W10O32]4-) decatungstate reductive quenching cycle, ([HW10O32]4--[H2W10O32]4--[HW10O32]4-) electron relay, and (NiI-NiII-NiI-NiIII-NiI) nickel catalytic cycle is proposed to be favorable. We hope that this work would provide a better understanding of the unique catalytic activity of decatungstate anions for the direct functionalization of the C(sp3)-H bond.
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Affiliation(s)
- Yu-Jiao Dong
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Bo Zhu
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Yu-Jie Liang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Wei Guan
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China
| | - Zhong-Min Su
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun 130024, People's Republic of China.,College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
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