1
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Shan C, Li R, Wang X. Efficient construction of a β-naphthol library under continuous flow conditions. RSC Adv 2024; 14:2673-2677. [PMID: 38226147 PMCID: PMC10789443 DOI: 10.1039/d3ra08660g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Accepted: 01/04/2024] [Indexed: 01/17/2024] Open
Abstract
A β-naphthol library has been efficiently constructed utilizing a mild continuous flow procedure, relying on a tandem Friedel-Crafts reaction and starting from readily available arylacetyl chloride and alkynes. Multiple functionalized β-naphthols can be acquired within 160 s in generally high yields (up to 83%). Using an electron-rich phenylacetyl chloride derivative (4-OH- or 4-MeO-) provides spirofused triene dione as the primary product. A scale-up preparation affords a throughput of 4.70 g h-1, indicating potential large-scale application. Herein, we present a rapid, reliable, and scalable method to obtain various β-naphthols in the compound library.
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Affiliation(s)
- Chao Shan
- Heze University Heze Shandong Province 274015 China
| | - Ranran Li
- Heze University Heze Shandong Province 274015 China
| | - Xinchao Wang
- Heze University Heze Shandong Province 274015 China
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2
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Bhat MUS, Ganie MA, Shah BA. Metal-Free Tunable 1,2-Difunctionalization of Terminal Alkynes: Synthesis of β-Substituted α,β-Unsaturated Ketones. Chemistry 2023; 29:e202302294. [PMID: 37691543 DOI: 10.1002/chem.202302294] [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: 07/18/2023] [Revised: 08/25/2023] [Accepted: 09/11/2023] [Indexed: 09/12/2023]
Abstract
A metal-free tunable 1,2-difunctionalization of the terminal alkynes showcasing a tandem installation of C-C and C-S bonds has been developed. The key enabling factor for the approach is the use of acetic acid as an acyl source to synthesize β-substituted α,β-unsaturated ketones. The reaction at room temperature leads to the regioselective acylation at the terminal carbon of alkynes, whereas at -78 °C, the acylation occurs at the more substituted carbon.
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Affiliation(s)
- Muneer-Ul-Shafi Bhat
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine (CSIR-IIIM), Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 20002, India
| | - Majid Ahmad Ganie
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine (CSIR-IIIM), Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 20002, India
| | - Bhahwal Ali Shah
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine (CSIR-IIIM), Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 20002, India
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3
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Wang YX, Chen LP, Cao FD, Zhao B, Li ZP, Li XF, Huang LJ. A New Pathway for the Synthesis of Ketones from Aldehydes and Sulfonylhydrazones: Is Diazo the Key Intermediate? Chemistry 2023; 29:e202301569. [PMID: 37394679 DOI: 10.1002/chem.202301569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/29/2023] [Accepted: 06/30/2023] [Indexed: 07/04/2023]
Abstract
A new pathway via a cyclic intermediate for the synthesis of ketones from aldehydes and sulfonylhydrazone derivatives under basic conditions is proposed. Several control experiments were performed along with analysis of the mass spectra and in-situ IR spectra of the reaction mixture. Inspired by the new mechanism, an efficient and scalable method for homologation of aldehydes to ketones was developed. A wide variety of target ketones were obtained in yields of 42-95 % by simply heating the 3-(trifluoromethyl)benzene sulfonylhydrazones (3-(Tfsyl)hydrazone) for 2 h at 110 °C with aldehydes and with K2 CO3 and DMSO as base and solvent, respectively.
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Affiliation(s)
- Yue-Xing Wang
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering, Qingdao University of Science and Technology, 266042, Qingdao, Shandong, P. R. China
| | - Li-Ping Chen
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering, Qingdao University of Science and Technology, 266042, Qingdao, Shandong, P. R. China
| | - Feng-de Cao
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering, Qingdao University of Science and Technology, 266042, Qingdao, Shandong, P. R. China
| | - Bin Zhao
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering, Qingdao University of Science and Technology, 266042, Qingdao, Shandong, P. R. China
| | - Zhen-Peng Li
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering, Qingdao University of Science and Technology, 266042, Qingdao, Shandong, P. R. China
| | - Xiu-Fen Li
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering, Qingdao University of Science and Technology, 266042, Qingdao, Shandong, P. R. China
| | - Long-Jiang Huang
- State Key Laboratory Base for Eco-Chemical Engineering College of Chemical Engineering, Qingdao University of Science and Technology, 266042, Qingdao, Shandong, P. R. China
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, 100050, Beijing, P. R. China
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4
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Borra S, Kim HY, Oh K. One-Pot Tandem Nickel-Catalyzed α-Vinyl Aldol Reaction and Cycloaddition Approach to [1,2,3]Triazolo[1,5- a]quinolines. Org Lett 2023; 25:288-292. [PMID: 36580377 DOI: 10.1021/acs.orglett.2c04188] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A one-pot tandem approach to [1,2,3]triazolo[1,5-a]quinolines was developed from (E)-β-chlorovinyl ketones and 2-azidoaryl carbonyls using a sequence of α-vinyl aldol and azide-alkyne cycloaddition reactions. In particular, the intramolecular azide-alkyne cycloaddition of allenol intermediates was readily promoted by a synergistic action of NEt3 and nickel catalysts. Given that the [1,2,3]triazolo[1,5-a]quinolines are useful synthetic precursors to α-diazoimines through ring-chain isomerization process, the subsequent denitrogenative transformations should provide ready access to valuable heterocyclic compounds.
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Affiliation(s)
- Satheesh Borra
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Hun Young Kim
- Department of Global Innovative Drugs, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
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5
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Nguyen MT, Le N, Nguyen HT, Luong TDV, Nguyen VKT, Kawazoe Y, Tran PH, Pham-Tran NN. Mechanism of Friedel-Crafts Acylation Using Metal Triflate in Deep Eutectic Solvents: An Experimental and Computational Study. ACS OMEGA 2023; 8:271-278. [PMID: 36643563 PMCID: PMC9835085 DOI: 10.1021/acsomega.2c03944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
In this paper, we develop a method for Friedel-Crafts acylation using metal triflate in deep eutectic solvents. Various metal triflates were tested and provided good to excellent yields of corresponding ketone products. The density functional theory calculation revealed the metal effects on the formation of active intermediate acylium triflate as well as the acidic condition. The metal triflate in the deep eutectic solvent can be recovered and reused with a little loss in the catalytic activity.
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Affiliation(s)
- Minh-Tam
Thi Nguyen
- Faculty
of Chemistry, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Nghia Le
- Faculty
of Chemistry, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
- Institute
for Computational Science and Technology (ICST), Quang Trung Software City, Ho Chi Minh City 700000, Vietnam
| | - Hai Truong Nguyen
- Faculty
of Chemistry, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Tram Diem Vu Luong
- Faculty
of Chemistry, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Van Kieu Thuy Nguyen
- Faculty
of Chemistry, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Yoshiyuki Kawazoe
- New
Industry Creation Hatchery Center, Tohoku
University, Sendai 980-8579, Japan
- Department
of Physics and Nanotechnology, SRM Institute
of Science and Technology, Kattankulathur 603203, Tamil Nadu, India
- School of
Physics, Suranaree University of Technology, 111 University Venue Muang, Nakhon Ratchasima 30000, Thailand
| | - Phuong Hoang Tran
- Faculty
of Chemistry, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
| | - Nguyen-Nguyen Pham-Tran
- Faculty
of Chemistry, University of Science, Ho Chi Minh City 700000, Vietnam
- Vietnam
National University, Ho Chi
Minh City 700000, Vietnam
- Institute
for Computational Science and Technology (ICST), Quang Trung Software City, Ho Chi Minh City 700000, Vietnam
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6
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Bhatt D, Kim HY, Oh K. Cu(OTf)2‐Catalyzed Aerobic Cycloisomerization of Alkenyl Sulfones to Furans Using (E)‐β‐Chlorovinyl Ketones and Sodium Sulfinates. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Divya Bhatt
- Chung-Ang University KOREA (THE REPUBLIC OF)
| | | | - Kyungsoo Oh
- Chung-Ang University KOREA (THE REPUBLIC OF)
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7
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Kochetkov KA, Bystrova NA, Pavlov PA, Oshchepkov MS, Oshchepkov AS. Microfluidic Asymmetrical Synthesis and Chiral Analysis. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.08.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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8
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Borra S, Chae S, Kim HY, Oh K. Continuous Flow Synthesis of 1,4-Benzothiazines Using Ambivalent Reactivity of ( E)-β-Chlorovinyl Ketones: A Point of Reaction Control Enabled by Flow Chemistry. Org Lett 2022; 24:5287-5292. [PMID: 35848887 DOI: 10.1021/acs.orglett.2c01865] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A continuous flow system to 1,4-benzothiazines was developed using the point of reaction control, where the ambivalent (E)-β-chlorovinyl ketones and 2,2'-dithiodianilines were confined in a diffusion controlled flow setting. The successful segregation of reactive chemical species in a flow setting allowed more defined reaction pathways that are not feasible in traditional batch reaction conditions. The point of reaction control in flow systems helps to execute the reactions often plagued with the concurrent generation of multiple chemical species.
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Affiliation(s)
- Satheesh Borra
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Soyeon Chae
- Department of Global Innovative Drugs, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Hun Young Kim
- Department of Global Innovative Drugs, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
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9
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Bhatt D, Chae S, Kim HY, Oh K. One-Pot Synthesis of N-Hydroxypyrroles via Soft α-Vinyl Enolization of ( E)-β-Chlorovinyl Ketones: A Traceless Arylsulfinate Mediator Strategy. Org Lett 2022; 24:2636-2640. [PMID: 35385289 DOI: 10.1021/acs.orglett.2c00649] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
A traceless arylsulfinate mediator strategy has been developed to switch the reaction course of β-chlorovinyl ketones with N-hydroxyamine. The soft α-vinyl enolization of (E)-β-chlorovinyl ketones was conducted in the presence of sodium arylsulfinate to give transient alkenyl sulfones that in turn reacted with NH2OH to give novel access to N-hydroxypyrroles. The mechanistic studies revealed the initial formation of oxazine intermediates that rearranged to thermodynamically stable aromatic products, N-hydroxypyrroles, under microwave-assisted heating conditions.
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Affiliation(s)
- Divya Bhatt
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Soyeon Chae
- Department of Global Innovative Drugs, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Hun Young Kim
- Department of Global Innovative Drugs, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
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10
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Harnedy J, Hareram MD, Tizzard GJ, Coles SJ, Morrill LC. Electrochemical oxidative Z-selective C(sp 2)-H chlorination of acrylamides. Chem Commun (Camb) 2021; 57:12643-12646. [PMID: 34762080 DOI: 10.1039/d1cc05824j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
An electrochemical method for the oxidative Z-selective C(sp2)-H chlorination of acrylamides has been developed. This catalyst and organic oxidant free method is applicable across various substituted tertiary acrylamides, and provides access to a broad range of synthetically useful Z-β-chloroacrylamides in good yields (22 examples, 73% average yield). The orthogonal derivatization of the products was demonstrated through chemoselective transformations and the electrochemical process was performed on gram scale in flow.
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Affiliation(s)
- James Harnedy
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.
| | - Mishra Deepak Hareram
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.
| | - Graham J Tizzard
- UK National Crystallographic Service, Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Simon J Coles
- UK National Crystallographic Service, Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK
| | - Louis C Morrill
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.
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11
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Hammer AS, Leonov AI, Bell NL, Cronin L. Chemputation and the Standardization of Chemical Informatics. JACS AU 2021; 1:1572-1587. [PMID: 34723260 PMCID: PMC8549037 DOI: 10.1021/jacsau.1c00303] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Indexed: 05/11/2023]
Abstract
The explosion in the use of machine learning for automated chemical reaction optimization is gathering pace. However, the lack of a standard architecture that connects the concept of chemical transformations universally to software and hardware provides a barrier to using the results of these optimizations and could cause the loss of relevant data and prevent reactions from being reproducible or unexpected findings verifiable or explainable. In this Perspective, we describe how the development of the field of digital chemistry or chemputation, that is the universal code-enabled control of chemical reactions using a standard language and ontology, will remove these barriers allowing users to focus on the chemistry and plug in algorithms according to the problem space to be explored or unit function to be optimized. We describe a standard hardware (the chemical processing programming architecture-the ChemPU) to encompass all chemical synthesis, an approach which unifies all chemistry automation strategies, from solid-phase peptide synthesis, to HTE flow chemistry platforms, while at the same time establishing a publication standard so that researchers can exchange chemical code (χDL) to ensure reproducibility and interoperability. Not only can a vast range of different chemistries be plugged into the hardware, but the ever-expanding developments in software and algorithms can also be accommodated. These technologies, when combined will allow chemistry, or chemputation, to follow computation-that is the running of code across many different types of capable hardware to get the same result every time with a low error rate.
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12
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Gambacorta G, Sharley JS, Baxendale IR. A comprehensive review of flow chemistry techniques tailored to the flavours and fragrances industries. Beilstein J Org Chem 2021; 17:1181-1312. [PMID: 34136010 PMCID: PMC8182698 DOI: 10.3762/bjoc.17.90] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/22/2021] [Indexed: 12/28/2022] Open
Abstract
Due to their intrinsic physical properties, which includes being able to perform as volatile liquids at room and biological temperatures, fragrance ingredients/intermediates make ideal candidates for continuous-flow manufacturing. This review highlights the potential crossover between a multibillion dollar industry and the flourishing sub-field of flow chemistry evolving within the discipline of organic synthesis. This is illustrated through selected examples of industrially important transformations specific to the fragrances and flavours industry and by highlighting the advantages of conducting these transformations by using a flow approach. This review is designed to be a compendium of techniques and apparatus already published in the chemical and engineering literature which would constitute a known solution or inspiration for commonly encountered procedures in the manufacture of fragrance and flavour chemicals.
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Affiliation(s)
- Guido Gambacorta
- Department of Chemistry, University of Durham, Stockton Road, Durham, DH1 3LE, United Kingdom
| | - James S Sharley
- Department of Chemistry, University of Durham, Stockton Road, Durham, DH1 3LE, United Kingdom
| | - Ian R Baxendale
- Department of Chemistry, University of Durham, Stockton Road, Durham, DH1 3LE, United Kingdom
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13
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Chen FJ, Hua Z, Chen J, Chen J, Lee D, Xia Y. One-Pot Synthesis of (Z)-β-Halovinyl Ketones via the Cascade of Sonogashira Coupling and Hydrohalogenation. Front Chem 2021; 8:621545. [PMID: 33968892 PMCID: PMC8100659 DOI: 10.3389/fchem.2020.621545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 12/03/2020] [Indexed: 11/29/2022] Open
Abstract
Herein, we report an efficient method for the synthesis of (Z)-β-halovinyl ketones through a one-pot Sonogashira coupling and hydrohalogenation reaction promoted by palladium-copper catalyst and Brønsted acid. The ynone intermediates are generated in situ from readily available acid chlorides and terminal alkynes at room temperature, which are directly converted to (Z)-β-halovinyl ketones by treating with triflic acid. This method avoids the use of an external halogen source and features broad substrate scope, high yield, and good to excellent stereoselectivity.
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Affiliation(s)
- Fa-Jie Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China.,Department of Chemistry, University of Illinois at Chicago, Chicago, IL, United States
| | - Zhenguo Hua
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Jianhui Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Jiajia Chen
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, Chicago, IL, United States
| | - Yuanzhi Xia
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, China
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14
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Jiang G, Yang G, Liu X, Wang S, Ji F. Palladium-catalyzed sequential acylation/annulation of indoles with acyl chlorides using primary amine as the directing group. NEW J CHEM 2021. [DOI: 10.1039/d0nj04406g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient, palladium(ii)-catalyzed, C(sp2)–H acylation/annulation of indoles with acyl chlorides for the synthesis of substituted indolo[1,2-a]quinazolines is reported.
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Affiliation(s)
- Guangbin Jiang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Guang Yang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Xinqiang Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Shoucai Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
| | - Fanghua Ji
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Function Materials
- College of Chemistry and Bioengineering
- Guilin University of Technology
- Guilin 541004
- People's Republic of China
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15
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Kasakado T, Hyodo M, Furuta A, Kamardine A, Ryu I, Fukuyama T. Flow
Friedel–Crafts
alkylation of
1‐adamantanol
with arenes using
HO‐SAS
as an immobilized acid catalyst. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.202000518] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Takayoshi Kasakado
- Organization for Research Promotion Osaka Prefecture University Sakai Japan
| | - Mamoru Hyodo
- Organization for Research Promotion Osaka Prefecture University Sakai Japan
| | - Akihiro Furuta
- Department of Chemistry Graduate School of Science, Osaka Prefecture University Sakai Japan
| | - Aina Kamardine
- Department of Chemistry Graduate School of Science, Osaka Prefecture University Sakai Japan
| | - Ilhyong Ryu
- Organization for Research Promotion Osaka Prefecture University Sakai Japan
- Department of Applied Chemistry National Chiao Tung University Hsinchu Taiwan
| | - Takahide Fukuyama
- Department of Chemistry Graduate School of Science, Osaka Prefecture University Sakai Japan
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16
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Chen MY, Pannecoucke X, Jubault P, Besset T. Pd-Catalyzed Selective Chlorination of Acrylamides at Room Temperature. Org Lett 2020; 22:7556-7561. [PMID: 32941046 DOI: 10.1021/acs.orglett.0c02750] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this Letter, the transition-metal-catalyzed chlorination of alkenes is reported. In the presence of the commercially available and inexpensive N-chlorosuccinimide and without additive, the Pd-catalyzed chlorination of acrylamides by C-H bond activation was developed at room temperature under air. Under these mild reaction conditions, the versatility of the methodology was demonstrated as an array of acrylamides was functionalized to selectively provide the corresponding difficult-to-synthesize chlorinated olefins as a single Z stereoisomer. Mechanistic studies were conducted to get insights into the reaction mechanism, and post-functionalization reactions further demonstrated the synthetic utility of the approach toward the access to high value-added chlorinated compounds.
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Affiliation(s)
- Mu-Yi Chen
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Xavier Pannecoucke
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Philippe Jubault
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Tatiana Besset
- Normandie Université, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
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17
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Patil DV, Kim HY, Oh K. Visible Light-Promoted Friedel–Crafts-Type Chloroacylation of Alkenes to β-Chloroketones. Org Lett 2020; 22:3018-3022. [DOI: 10.1021/acs.orglett.0c00788] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Dilip V. Patil
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Hun Young Kim
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, Graduate School of Pharmaceutical Sciences, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
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18
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Kim HY, Oh K. Divergent Reaction Pathways of β‐Chlorovinyl Ketones: Microwave‐Assisted Thermal Nazarov Cyclization versus Cycloisomerization via Soft Vinyl Enolization. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901399] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hun Young Kim
- Center for Metareceptome Research, Graduate School of Pharmaceutical SciencesChung-Ang University 84 Heukseok-ro, Dongjak Seoul 06974 Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, Graduate School of Pharmaceutical SciencesChung-Ang University 84 Heukseok-ro, Dongjak Seoul 06974 Republic of Korea
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19
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Orsy G, Fülöp F, Mándity IM. Direct amide formation in a continuous-flow system mediated by carbon disulfide. Catal Sci Technol 2020. [DOI: 10.1039/d0cy01603a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We report a direct flow-based synthesis of amides. The developed approach is prominently simple and various aliphatic and aromatic amides were synthetized with excellent yields. The technology is considerably robust and easy scale-up was carried out.
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Affiliation(s)
- György Orsy
- Institute of Pharmaceutical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
- MTA TTK Lendület Artificial Transporter Research Group
| | - Ferenc Fülöp
- Institute of Pharmaceutical Chemistry
- University of Szeged
- H-6720 Szeged
- Hungary
- Research Group of Stereochemistry of the Hungarian Academy of Sciences
| | - István M. Mándity
- MTA TTK Lendület Artificial Transporter Research Group
- Institute of Materials and Environmental Chemistry
- Research Center for Natural Sciences
- Hungarian Academy of Sciences
- 1117 Budapest
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20
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Koo H, Kim HY, Oh K. Continuous Flow Synthesis of Isoxazoles via Vinyl Azides from Friedel–Crafts Acylation of Alkynes: A Modulated Troubleshooting Optimization Approach. Org Lett 2019; 21:10063-10068. [DOI: 10.1021/acs.orglett.9b04010] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Hyungmo Koo
- Center for Metareceptome Research, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Hun Young Kim
- Center for Metareceptome Research, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
| | - Kyungsoo Oh
- Center for Metareceptome Research, College of Pharmacy, Chung-Ang University, 84 Heukseok-ro, Dongjak, Seoul 06974, Republic of Korea
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