1
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Lv J, Liang Y, Ouyang Y, Zhang H. Metal-Free ortho C-H Borylation of Thiobenzamides. Org Lett 2024; 26:3709-3714. [PMID: 38691629 DOI: 10.1021/acs.orglett.4c00691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2024]
Abstract
A BBr3-mediated S-directed ortho C-H borylation of thiobenzamides was developed. A variety of ortho-borylated thiobenzamides were obtained in moderate to good yields with a wide functional group tolerance under simple and metal-free conditions. This transformation provided a convenient and practical route to important functionalized thiobenzamides.
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Affiliation(s)
- Jianxing Lv
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, P. R. China
| | - Yixuan Liang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, P. R. China
| | - Yepeng Ouyang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, P. R. China
| | - Hua Zhang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education and Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, P. R. China
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2
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Shlapakov NS, Kobelev AD, Burykina JV, Cheng YZ, You SL, Ananikov VP. Sulfur in Waste-Free Sustainable Synthesis: Advancing Carbon-Carbon Coupling Techniques. Angew Chem Int Ed Engl 2024; 63:e202402109. [PMID: 38421344 DOI: 10.1002/anie.202402109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 03/02/2024]
Abstract
This review explores the pivotal role of sulfur in advancing sustainable carbon-carbon (C-C) coupling reactions. The unique electronic properties of sulfur, as a soft Lewis base with significant mesomeric effect make it an excellent candidate for initiating radical transformations, directing C-H-activation, and facilitating cycloaddition and C-S bond dissociation reactions. These attributes are crucial for developing waste-free methodologies in green chemistry. Our mini-review is focused on existing sulfur-directed C-C coupling techniques, emphasizing their sustainability and comparing state-of-the-art methods with traditional approaches. The review highlights the importance of this research in addressing current challenges in organic synthesis and catalysis. The innovative use of sulfur in photocatalytic, electrochemical and metal-catalyzed processes not only exemplifies significant advancements in the field but also opens new avenues for environmentally friendly chemical processes. By focusing on atom economy and waste minimization, the analysis provides broad appeal and potential for future developments in sustainable organic chemistry.
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Affiliation(s)
- Nikita S Shlapakov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, 119991, Moscow, Russia
| | - Andrey D Kobelev
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, 119991, Moscow, Russia
| | - Julia V Burykina
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, 119991, Moscow, Russia
| | - Yuan-Zheng Cheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, 200032, Shanghai, China
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, 200032, Shanghai, China
| | - Valentine P Ananikov
- Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect, 47, 119991, Moscow, Russia
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3
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Logeswaran R, Jeganmohan M. Dehydrogenative Cross-Coupling of α,β-Unsaturated Compounds with Unactivated Olefins via Co(III) Catalysis. Org Lett 2023; 25:6284-6289. [PMID: 37603494 DOI: 10.1021/acs.orglett.3c02095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/23/2023]
Abstract
An oxidative cross-coupling of α,β-unsaturated compounds with unactivated alkenes via cobalt-catalyzed vinylic C-H activation has been developed. The present catalytic reaction was examined with various differently functionalized unsaturated compounds and unactivated olefins. In these reactions, highly valuable amide functionalized butadienes and indenones were prepared in good to excellent yields. A possible reaction mechanism is proposed involving directed olefinic C-H activation through a base-assisted deprotonation pathway.
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Affiliation(s)
- Ravichandran Logeswaran
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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4
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Zhang J, Liu J, Wang X, Yang X, Ma Y, Fang R, Zhao Q, Szostak M. Ruthenium-Catalyzed C–F Bond Arylation of Polyfluoroarenes: Polyfluorinated Biaryls by Integrated C–F/C–H Functionalization. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04401] [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)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Jiale Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Xiaogang Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Xinkan Yang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Ran Fang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Qun Zhao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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5
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Ilkin VG, Filimonov VO, Seliverstova EA, Novikov MS, Beryozkina TV, Gagarin AA, Belskaya NP, Muthipeedika NJ, Bakulev VA, Dehaen W. Thioisomünchnones versus Acrylamides via Copper-Catalyzed Reaction of Thioamides with Diazocarbonyl Compounds. J Org Chem 2022; 87:12196-12213. [PMID: 36007261 DOI: 10.1021/acs.joc.2c01352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel carbenoid-mediated approach to thioisomünchnones was developed by intermolecular copper-catalyzed reactions of diazoacetamides with aromatic and heteroaromatic thioamides bearing a pyrrolidine moiety. The direction of the reaction can be switched toward 2-amino-2-heteroarylacrylamides by replacing the pyrrolidine with an aniline group or by the use of 2-cyano-2-diazoacetamides. The proposed mechanism and DFT calculations allowed us to rationalize the effect of substituents on the reaction direction. Effective methods were found for the synthesis of previously unknown both 2-heteroarylthioisomünchones and 2-heteroarylacrylamides, based on a wide scope of available reagents with a similar structure. Some of the synthesized thioisomünchnones exhibited multicolor fluorescence in the solid state and solutions.
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Affiliation(s)
- Vladimir G Ilkin
- TOS Department, Ural Federal University, Yekaterinburg620002, Russia.,Molecular Design and Synthesis, Department of Chemistry, KU Leuven, B-3001Leuven, Belgium
| | | | | | - Mikhail S Novikov
- Institute of Chemistry, St. Petersburg State University, St. Petersburg199034, Russia
| | | | - Aleksey A Gagarin
- TOS Department, Ural Federal University, Yekaterinburg620002, Russia
| | | | - Nibin Joy Muthipeedika
- Innovation Center for Chemical and Pharmaceutical Technologies, Institute of Chemical Technology, Ural Federal University, Yekaterinburg620002, Russia
| | - Vasiliy A Bakulev
- TOS Department, Ural Federal University, Yekaterinburg620002, Russia
| | - Wim Dehaen
- Molecular Design and Synthesis, Department of Chemistry, KU Leuven, B-3001Leuven, Belgium
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6
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Ban Y, Wang Y, Li H, Wang Y, Li D, Yang J. Thioamide directed iridium(I)-catalyzed C-H arylation of ferrocenes with aryl boronic acids. Org Biomol Chem 2022; 20:5759-5763. [PMID: 35801428 DOI: 10.1039/d2ob00863g] [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 first Ir(I)-catalyzed thioamide-assisted C-H arylation of ferrocenes with aryl boronic acids under base-free mild reaction conditions in the presence of Ag2CO3 as an oxidant with eco-friendly 2-MeTHF as a solvent was developed. This reaction has a wide range of substrates (37 examples) and functional group tolerance (18-94% yields), and provides promising access to aryl thioamide-ferrocene compounds with good yields and regioselectivity.
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Affiliation(s)
- Yan Ban
- School of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, People's Republic of China
| | - Yingxin Wang
- School of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, People's Republic of China
| | - Hao Li
- School of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, People's Republic of China
| | - Yan Wang
- School of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, People's Republic of China
| | - Dianjun Li
- School of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, People's Republic of China.,State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, PR China.
| | - Jinhui Yang
- School of Chemistry and Chemical Engineering, Ningxia University, 489 Helanshan West Road, Yinchuan 750021, People's Republic of China.,State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, PR China.
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7
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Li H, Luo H, Ban Y, Wang Y, Li D, Yang J. Thioamide‐Directed Transition‐metal‐catalyzed C(sp2) –H bond vinylation and arylation of Ferrocenes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hao Li
- Ningxia University State Key Laboratory of High Efficiency Utilization of Coal and Green Chemical Engineering CHINA
| | - Hui Luo
- Ningxia University State Key Laboratory of High Efficiency Utilization of Coal and Green Chemical Engineering CHINA
| | - Yan Ban
- Ningxia University State Key Laboratory of High Efficiency Utilization of Coal and Green Chemical Engineering CHINA
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8
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Li X, Chen M, Xie C, Zhang J. Visible Light-Activated Ruthenium-Catalysed Direct Arylation at Ambient Temperature. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Zhang J, Zhao H, Li G, Zhu X, Shang L, He Y, Liu X, Ma Y, Szostak M. Transamidation of thioamides with nucleophilic amines: thioamide N-C(S) activation by ground-state-destabilization. Org Biomol Chem 2022; 20:5981-5988. [PMID: 35441645 DOI: 10.1039/d2ob00412g] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Thioamides are 'single-atom' isosteres of amide bonds that have found broad applications in organic synthesis, biochemistry and drug discovery. In this New Talent themed issue, we present a general strategy for activation of N-C(S) thioamide bonds by ground-state-destabilization. This concept is outlined in the context of a full study on transamidation of thioamides with nucleophilic amines, and relies on (1) site-selective N-activation of the thioamide bond to decrease resonance and (2) highly chemoselective nucleophilic acyl addition to the thioamide CS bond. The follow-up collapse of the tetrahedral intermediate is favored by the electronic properties of the amine leaving group. The ground-state-destabilization concept of thioamides enables weakening of the N-C(S) bond and rationally modifies the properties of valuable thioamide isosteres for the development of new methods in organic synthesis. We fully expect that in analogy to the burgeoning field of destabilized amides introduced by our group in 2015, the thioamide bond ground-state-destabilization activation concept will find broad applications in various facets of chemical science, including metal-free, metal-catalyzed and metal-promoted reaction pathways.
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Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China. .,Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, USA.
| | - Hui Zhao
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Guangchen Li
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, USA.
| | - Xinhao Zhu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Linqin Shang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Yang He
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Xin Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, NJ 07102, USA.
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10
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Ma L, Zhang X, Tuo Y, Zheng QZ. Cp*Rh(III)-Catalyzed Regioselective C(sp 2)-H Mono- and Dialkynylation of Thioamides by Sulfur Coordination. J Org Chem 2022; 87:3691-3700. [PMID: 35138097 DOI: 10.1021/acs.joc.1c02622] [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
An efficient Cp*Rh(III)-catalyzed regioselective C(sp2)-H mono- and dialkynylation of thioamides was described. This reaction was performed under mild conditions in high yields (up to 98%) with a broad substrate scope. Significantly, the versatility of this method was further demonstrated by controlled mono- and dialkynylation. Application of this protocol in the late stage functionalization of two drug molecules (Adapalene and Amoxapine) was also demonstrated.
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Affiliation(s)
- Lin Ma
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Xiaohui Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Yanyan Tuo
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Qing-Zhong Zheng
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.,State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191, China
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11
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Gupta A, Vankar JK, Jadav JP, Gururaja GN. Water Mediated Direct Thioamidation of Aldehydes at Room Temperature. J Org Chem 2022; 87:2410-2420. [PMID: 35133151 DOI: 10.1021/acs.joc.1c02307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A mild, greener approach toward thioamide synthesis has been developed. Its unique features include water-mediated reaction with no input energy, additives, or catalysts as well. The presented protocol is attractive with readily available starting materials and the use of different array amines, along with a scaled-up method. Biologically active molecules such as thionicotinamide and thioisonicotinamide can be synthesized from this procedure.
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Affiliation(s)
- Ankush Gupta
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Jigarkumar K Vankar
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
| | - Jaydeepbhai P Jadav
- School of Chemical Sciences, Central University of Gujarat, Gandhinagar 382030, India
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12
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Xie H, Song JL, Jiang CY, Huang YX, Zeng JY, Liu XG, Zhang SS, Yang F. Thioether-directed Rh(III)-catalyzed peri-selective acyloxylation of arenes. Org Biomol Chem 2022; 20:565-569. [PMID: 34985096 DOI: 10.1039/d1ob02236a] [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
A thioether directed acyloxylation of arenes has been realized via Cp*Rh(III)-catalyzed C-H activation and subsequent coupling with carboxylic acids. This new method showed high functional group compatibility and broad substrate scope. Primary mechanistic studies have been conducted and a tentative reaction mechanism was proposed. It represents the first example of a thioether-directed Cp*Rh(III)-catalyzed C(sp2)-H acyloxylation reaction.
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Affiliation(s)
- Hui Xie
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Jia-Lin Song
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Chun-Yong Jiang
- School of Ethnic Medicine, Guizhou Minzu University, Guiyang, 550025, P. R. China
| | - Yan-Xia Huang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Jun-Yi Zeng
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Xu-Ge Liu
- Key Laboratory of Brain Targeted Nanodrugs of Henan Province, School of Pharmacy, Henan University, Kaifeng, Henan 475004, P. R. China.
| | - Shang-Shi Zhang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
| | - Fan Yang
- Center for Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou, 510006, P. R. China.
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13
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Gao P, Zhang X, Zheng QZ. Cobalt(III)-catalyzed C-H amidation of N, N-dialkyl thiobenzamides by sulfur coordination. Org Biomol Chem 2021; 19:10332-10336. [PMID: 34817486 DOI: 10.1039/d1ob02034j] [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 inexpensive cobalt(III)-catalyzed intermolecular amidation of N,N-dialkyl thiobenzamides with 1,4,2-dioxazol-5-ones via C-H bond activation is described. The reaction proceeds with high functional group tolerance under external oxidant free conditions, providing a straightforward approach for the direct modification of thioamide derivatives, which are prevalent organic motifs found in vital biological and pharmaceutical molecules.
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Affiliation(s)
- Pengpeng Gao
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.
| | - Xiaohui Zhang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China.
| | - Qing-Zhong Zheng
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, National Demonstration Center for Experimental Chemistry Education, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China. .,State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Xue Yuan Rd. 38, Beijing 100191, China
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14
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Dana S, Giri CK, Baidya M. Ruthenium(II)-Catalyzed Regioselective C-H Olefination of Aromatic Ketones and Amides with Allyl Sulfones. Org Lett 2021; 23:6855-6860. [PMID: 34428069 DOI: 10.1021/acs.orglett.1c02424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A Ru(II)-catalyzed cross-dehydrogenative Heck-type olefination of arenes with allyl sulfones leveraging the assistance of weakly coordinating ketone and amide functional groups is reported. It features a distinct reactivity profile in comparison to other allylic congeners, where β-sulfonyl elimination was not detected. The ambiphilic nature of the allyl sulfone side chain has also been demonstrated through intramolecular aza-Michael addition and aldol condensation. Mechanistic studies indicated the involvement of a reversible metalation step, where β-hydride elimination takes place selectively from the benzylic position.
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Affiliation(s)
- Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Chandan Kumar Giri
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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15
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Logeswaran R, Jeganmohan M. Effect of Transition Metals on Chemodivergent Cross-Coupling of Acrylamides with Vinyl Acetate via C-H Activation. Org Lett 2021; 23:5679-5683. [PMID: 34264083 DOI: 10.1021/acs.orglett.1c01797] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel chemodivergent cross-coupling of acrylamides and vinyl acetates has been realized via metal-catalyzed vinylic C-H activation. The selective olefinic C-H vinylation and alkenylation reaction was examined with a variety of differently functionalized acrylamides. The reaction efficiently generates a range of highly synthetically valuable butadienes with good functional group tolerance in good to moderate yields. A possible catalytic reaction mechanism involving the chelation-assisted olefinic C-H activation via an acetate-assisted deprotonation pathway is proposed.
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Affiliation(s)
- Ravichandran Logeswaran
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036 Tamil Nadu, India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036 Tamil Nadu, India
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16
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Mousavi H. A comprehensive survey upon diverse and prolific applications of chitosan-based catalytic systems in one-pot multi-component synthesis of heterocyclic rings. Int J Biol Macromol 2021; 186:1003-1166. [PMID: 34174311 DOI: 10.1016/j.ijbiomac.2021.06.123] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 05/16/2021] [Accepted: 06/16/2021] [Indexed: 12/12/2022]
Abstract
Heterocyclic compounds are among the most prestigious and valuable chemical molecules with diverse and magnificent applications in various sciences. Due to the remarkable and numerous properties of the heterocyclic frameworks, the development of efficient and convenient synthetic methods for the preparation of such outstanding compounds is of great importance. Undoubtedly, catalysis has a conspicuous role in modern chemical synthesis and green chemistry. Therefore, when designing a chemical reaction, choosing and or preparing powerful and environmentally benign simple catalysts or complicated catalytic systems for an acceleration of the chemical reaction is a pivotal part of work for synthetic chemists. Chitosan, as a biocompatible and biodegradable pseudo-natural polysaccharide is one of the excellent choices for the preparation of suitable catalytic systems due to its unique properties. In this review paper, every effort has been made to cover all research articles in the field of one-pot synthesis of heterocyclic frameworks in the presence of chitosan-based catalytic systems, which were published roughly by the first quarter of 2020. It is hoped that this review paper can be a little help to synthetic scientists, methodologists, and catalyst designers, both on the laboratory and industrial scales.
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Affiliation(s)
- Hossein Mousavi
- Department of Organic Chemistry, Faculty of Chemistry, Urmia University, Urmia, Iran.
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17
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Shambhavi CN, Jeganmohan M. Ruthenium(II)-Catalyzed Redox-Neutral C-H Alkylation of Arylamides with Unactivated Olefins. Org Lett 2021; 23:4849-4854. [PMID: 34060852 DOI: 10.1021/acs.orglett.1c01575] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A Ru(II)-catalyzed weak chelating group-aided ortho-C-H alkylation of arylamides with unactivated olefins in a redox-neutral fashion has been demonstrated. The present alkylation reaction was well-suited for various substituted arylamides and unactivated aliphatic alkenes. In this alkylation reaction, pivalic acid plays dual role in which it delivers the proton source in a protonation step and the corresponding acetate moiety deprotonates the ortho-C-H bond of the arylamides.
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Affiliation(s)
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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Adamczyk-Woźniak A, Gozdalik JT, Kaczorowska E, Durka K, Wieczorek D, Zarzeczańska D, Sporzyński A. (Trifluoromethoxy)Phenylboronic Acids: Structures, Properties, and Antibacterial Activity. Molecules 2021; 26:molecules26072007. [PMID: 33916124 PMCID: PMC8036725 DOI: 10.3390/molecules26072007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 03/24/2021] [Accepted: 03/27/2021] [Indexed: 12/20/2022] Open
Abstract
Three isomers of (trifluoromethoxy)phenylboronic acids were studied in the context of their physicochemical, structural, antimicrobial and spectroscopic properties. They were characterized by 1H, 13C, 11B and 19F NMR spectroscopy. The acidity of all the isomers was evaluated by both spectrophotometric and potentiometric titrations. The introduction of the -OCF3 group influences the acidity, depending, however, on the position of a substituent, with the ortho isomer being the least acidic. Molecular and crystal structures of ortho and para isomers were determined by the single crystal XRD method. Hydrogen bonded dimers are the basic structural motives of the investigated molecules in the solid state. In the case of the ortho isomer, intramolecular hydrogen bond with the -OCF3 group is additionally formed, weaker, however, than that in the analogous -OCH3 derivative, which has been determined by both X-Ray measurements as well as theoretical DFT calculations. Docking studies showed possible interactions of the investigated compounds with LeuRS of Escherichia coli. Finally, the antibacterial potency of studied boronic acids in vitro were evaluated against Escherichia coli and Bacillus cereus.
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Affiliation(s)
- Agnieszka Adamczyk-Woźniak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
- Correspondence:
| | - Jan T. Gozdalik
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
| | - Ewa Kaczorowska
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
| | - Krzysztof Durka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
| | - Dorota Wieczorek
- Faculty of Chemistry, University of Opole, Oleska 48, 45-052 Opole, Poland;
| | - Dorota Zarzeczańska
- Faculty of Chemistry, University of Gdańsk, Wita Stwosza 63, 80-308 Gdańsk, Poland;
| | - Andrzej Sporzyński
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, 00-664 Warsaw, Poland; (J.T.G.); (E.K.); (K.D.)
- Faculty of Agriculture and Forestry, University of Warmia and Mazury, Oczapowskiego 8, 10-719 Olsztyn, Poland;
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Jin HS, Du YZ, Zhao QY, Zhao LM. Ru( ii)-Catalyzed C–H activation/annulation reactions of N-aryl-pyrazolidinones with sulfoxonium ylides: synthesis of cinnoline-fused pyrazolidinones. Org Chem Front 2021. [DOI: 10.1039/d1qo01001h] [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
The first Ru(ii)-catalyzed cascade C–H activation/annulation reactions of N-aryl-pyrazolidinones with sulfoxonium ylides are reported.
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Affiliation(s)
- Hai-Shan Jin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Ya-Zhen Du
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Qing-Yang Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Li-Ming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
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Xie H, Zhong M, Wang XT, Wu JQ, Cai YQ, Liu J, Shu B, Che T, Zhang SS. Cp*Ir(iii)- and Cp*Rh(iii)-catalyzed C(sp2)–H amination of arenes using thioethers as directing groups. Org Chem Front 2021. [DOI: 10.1039/d0qo01353f] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A mild and selective Cp*Ir(iii)- and Cp*Rh(iii)-catalyzed direct C(sp2)–H amination of arenes and three types of nitrene precursor reagents is reported, with the assistance of a thioether directing group.
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Affiliation(s)
- Hui Xie
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Mei Zhong
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Xiao-Tong Wang
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Jia-Qiang Wu
- School of Biotechnology and Health Sciences
- Wuyi University
- Jiangmen 529020
- China
| | - Yan-Qu Cai
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
| | - Jidan Liu
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou 510006
- People's Republic of China
| | - Bing Shu
- School of Pharmacy
- Guangdong Pharmaceutical University
- Guangzhou
- PR China
| | - Tong Che
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
- Jiangxi Chinese Medicine Science Center of DICP
| | - Shang-Shi Zhang
- Center for Drug Research and Development
- Guangdong Pharmaceutical University
- Guangzhou
- China
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21
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Zhang J, Liu Z, Yin Z, Yang X, Ma Y, Szostak R, Szostak M. Preference of cis-Thioamide Structure in N-Thioacyl-N-methylanilines. Org Lett 2020; 22:9500-9505. [DOI: 10.1021/acs.orglett.0c03512] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Zhulin Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Zheng Yin
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Xiufang Yang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Roman Szostak
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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