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Liu X, Hee S, Sapir NG, Li A, Farkruzzaman S, Liu J, Chen Y. n-Bu 4NI/K 2S 2O 8-MEDIATED C-N COUPLING BETWEEN ALDEHYDES AND AMIDES. European J Org Chem 2024; 27:e202400067. [PMID: 39051029 PMCID: PMC11268833 DOI: 10.1002/ejoc.202400067] [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: 01/19/2024] [Indexed: 07/27/2024]
Abstract
n-Bu4NI/K2S2O8 mediated C-N coupling between aldehydes and amides is reported. A strong electronic effect is observed on the aromatic aldehyde substrates. The transformylation from aldehyde to amide takes place exclusively when an aromatic aldehyde bears electron-donating groups at either the ortho or para position of the formyl group, while the cross-dehydrogenative coupling dominates in the absence of these groups. Both the density functional theory (DFT) thermochemistry calculations and experimental data support the proposed single electron transfer mechanism with the formation of an acyl radical intermediate in the cross-dehydrogenative coupling. The n-Bu4NI/K2S2O8 mediated oxidative cyclization between 2-aminobenzamide and aldehydes is also reported, with four quinazolin-4(3H)-ones prepared in 65-99% yields.
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Affiliation(s)
- Xiaochen Liu
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Blvd., Queens, New York, 11367, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Ave., New York, New York 10016, United States
| | - Samual Hee
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Blvd., Queens, New York, 11367, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Ave., New York, New York 10016, United States
| | - Netanel G Sapir
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Blvd., Queens, New York, 11367, United States
| | - Alvin Li
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Blvd., Queens, New York, 11367, United States
| | - Syed Farkruzzaman
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Blvd., Queens, New York, 11367, United States
| | - Jianbo Liu
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Blvd., Queens, New York, 11367, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Ave., New York, New York 10016, United States
| | - Yu Chen
- Department of Chemistry and Biochemistry, Queens College of the City University of New York, 65-30 Kissena Blvd., Queens, New York, 11367, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Ave., New York, New York 10016, United States
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2
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Gu C, Yatabe T, Yamaguchi K, Suzuki K. Photocatalytic aerobic α-oxygenation of amides to imides using a highly durable decatungstate tetraphenylphosphonium salt. Chem Commun (Camb) 2024; 60:4906-4909. [PMID: 38619883 DOI: 10.1039/d4cc01016g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
Decatungstate is a potent photocatalyst for hydrogen atom transfer (HAT) but faces degradation issues when using a typical tetra-n-butylammonium salt. Herein, we employed tetraphenylphosphonium as a countercation to yield a highly durable and efficient HAT photocatalyst, enabling α-oxygenation of amides to their corresponding imides using O2 as an oxidant.
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Affiliation(s)
- Chen Gu
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Takafumi Yatabe
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Kazuya Yamaguchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
| | - Kosuke Suzuki
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
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3
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Sang D, Dong B, Yu K, Tian J. Ferric Chloride-Mediated Transacylation of N-Acylsulfonamides. J Org Chem 2024; 89:2306-2319. [PMID: 38272854 DOI: 10.1021/acs.joc.3c02288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2024]
Abstract
Transacylation of N-acylsulfonamides, which replaces the N-acyl group with a new one, is a challenging and underdeveloped fundamental transformation. Herein, a general method for transacylation of N-acylsulfonamides is presented. The transformation is enabled by coincident catalytic reactivities of FeCl3 for nonhydrolytic deacylation of N-acylsulfonamides and subsequent acylation of the resultant sulfonamides and can be conducted either stepwise or in a one-pot manner. GaCl3 and RuCl3·xH2O are similarly effective for the reaction. This method is mild, efficient, and operationally simple. A variety of functional groups such as halogeno, keto, nitro, cyano, ether, and ester are well tolerated, providing the transacylation products in good to excellent yields.
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Affiliation(s)
- Dayong Sang
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Bingqian Dong
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Kangkang Yu
- College of Biotechnology, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Juan Tian
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
- Hubei Provincial Key Laboratory of Drug Synthesis and Optimization, Jingmen, Hubei 448000, P. R. China
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4
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Huo HF, Liu D, Bao A, Muschin T, Bai C, Bao YS. Mesoporous Carbon-Supported Pd Nanoparticles in the Metallic State-Catalyzed Acylation of Amides with Aryl Esters via C-O Activation. ACS OMEGA 2022; 7:12779-12786. [PMID: 35474796 PMCID: PMC9026098 DOI: 10.1021/acsomega.1c07342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 03/24/2022] [Indexed: 06/14/2023]
Abstract
Carbon, an abundant, inexpensive, and nonmetallic material, is an inimitable support in heterogeneous catalysis, and variable carbonaceous materials have been utilized to support metal nanoparticle catalysts. We developed an efficient and stable heterogeneous catalyst with highly dispersed metallic palladium nanoparticles embedded in an ordered pore channel of mesoporous carbon and first applied the catalyst to construct imides from amides using aryl esters as an acylation reagent via C-O activation. The catalyst represents excellent catalytic performance and could be reused and recycled five times without any significant decrease in activity. The heterogeneous nature of metallic state palladium was proven to be the active center in the acylation reaction.
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5
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Sang D, Dong B, Liu Y, Tian J. Chemoselective Cleavage of Acylsulfonamides and Sulfonamides by Aluminum Halides. J Org Chem 2022; 87:3586-3595. [PMID: 35157468 DOI: 10.1021/acs.joc.1c03133] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The chemoselective cleavage of C-N bonds of amides, sulfonamides, and acylsulfonamides by aluminum halides is described. AlCl3 and AlI3 display complementary reactivities toward N-alkyl and N-acyl moieties. N-Alkylacylsulfonamides, secondary N-(tert-butyl)sulfonamides, and tertiary N-(tert-butyl)amides undergo N-dealkylation upon treatments with AlI3 generated in situ from aluminum and iodine in acetonitrile. In contrast, AlCl3 preferentially cleaves N-acyl groups of tertiary and secondary sulfonamides.
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Affiliation(s)
- Dayong Sang
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Bingqian Dong
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China.,School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, Hubei 430205, P. R. China
| | - Yunfeng Liu
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
| | - Juan Tian
- College of Chemical Engineering and Pharmacy, Jingchu University of Technology, Jingmen, Hubei 448000, P. R. China
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6
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Li J, Yao J, Chen L, Zou D, Walsh PJ, Liang G. Chemoselective acylation of N-acylglutarimides with N-acylpyrroles and aryl esters under transition-metal-free conditions. Org Chem Front 2021. [DOI: 10.1039/d1qo00992c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The imide moiety is a well-known structural motif in bioactive compounds and a useful building block in a variety of processes.
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Affiliation(s)
- Jie Li
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
- Department of Pharmacy, School of Medicine, Zhejiang University City College, No. 48, Huzhou Road, Hangzhou 310015, P. R. China
| | - Jiaqi Yao
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
- Department of Pharmacy, School of Medicine, Zhejiang University City College, No. 48, Huzhou Road, Hangzhou 310015, P. R. China
| | - Lingfeng Chen
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
| | - Dong Zou
- Department of Pharmacy, School of Medicine, Zhejiang University City College, No. 48, Huzhou Road, Hangzhou 310015, P. R. China
| | - Patrick J. Walsh
- Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA
| | - Guang Liang
- School of Pharmaceutical Sciences, Hangzhou Medical College, Hangzhou, Zhejiang 311399, China
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7
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Shukla P, Asati A, Bhardiya SR, Singh M, Rai VK, Rai A. Metal-free C-H Activation over Graphene Oxide toward Direct Syntheses of Structurally Different Amines and Amides in Water. J Org Chem 2020; 85:15552-15561. [PMID: 33146530 DOI: 10.1021/acs.joc.0c02219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Unprecedented metal-free synthesis of a variety of amines and amides is reported via amination of C(sp3)-H and C(sp2)-H bonds. The strategy involves graphene-oxide/I2-catalyzed nitrene insertion using PhINTs as a nitrene (NT) source in water at room temperature. A wide range of structurally different substrates, viz., cyclohexane, cyclic ethers, arenes, alkyl aromatic systems, and aldehydes/ketones, having an α-phenyl ring have been employed successfully to afford the corresponding nitrene insertion product in good yield, albeit low in few cases. The envisaged method has superiority over others in terms of its operational simplicity, metal-free catalysis, use of water as a solvent, ambient reaction conditions, and reusability of the catalyst.
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Affiliation(s)
- Prashant Shukla
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110 067, India
| | - Ambika Asati
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495 009, India
| | - Smita R Bhardiya
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495 009, India
| | - Manorama Singh
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495 009, India
| | - Vijai K Rai
- Department of Chemistry, Guru Ghasidas Vishwavidyalaya, Bilaspur, Chhattisgarh 495 009, India
| | - Ankita Rai
- School of Physical Sciences, Jawaharlal Nehru University, New Delhi 110 067, India
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8
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Zhang X, Cui T, Zhao X, Liu P, Sun P. Electrochemical Difunctionalization of Alkenes by a Four‐Component Reaction Cascade Mumm Rearrangement: Rapid Access to Functionalized Imides. Angew Chem Int Ed Engl 2020; 59:3465-3469. [DOI: 10.1002/anie.201913332] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/22/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Xiaofeng Zhang
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ting Cui
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Xin Zhao
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ping Liu
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Peipei Sun
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
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9
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Zhang X, Cui T, Zhao X, Liu P, Sun P. Electrochemical Difunctionalization of Alkenes by a Four‐Component Reaction Cascade Mumm Rearrangement: Rapid Access to Functionalized Imides. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Xiaofeng Zhang
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ting Cui
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Xin Zhao
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Ping Liu
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
| | - Peipei Sun
- School of Chemistry and Materials ScienceJiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution ControlJiangsu Collaborative Innovation Center of Biomedical Functional MaterialsNanjing Normal University Nanjing 210023 P. R. China
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10
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Xu Q, Zheng B, Pan L, Liu Q, Li Y. Practical Synthesis of β-Ketothioesters by Acid-Catalyzed Hydrolysis of Ketene N,S
-Acetals with Amino as the Leaving Group. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900634] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Qi Xu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Baihui Zheng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Ling Pan
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Qun Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
| | - Yifei Li
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis; Department of Chemistry; Northeast Normal University; 130024 Changchun China
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11
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Dahiya A, Ali W, Alam T, Patel BK. A cascade synthesis of S-allyl benzoylcarbamothioates via Mumm-type rearrangement. Org Biomol Chem 2018; 16:7787-7791. [PMID: 30324952 DOI: 10.1039/c8ob02293c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A catalyst and solvent free synthesis of S-allyl benzoylcarbamothioates has been achieved from the in situ generated benzoylcarbonimidothioates obtained by reacting MBH alcohols with aroyl isothiocyanates. An intramolecular thia-Michael addition of the in situ generated adduct triggers a Mumm-type rearrangement leading to a stereoselective synthesis of highly functionalised S-allyl benzoylcarbamothioates.
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Affiliation(s)
- Anjali Dahiya
- Department of Chemistry, Indian Institute of Technology Guwahati, 781 039, Assam, India.
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12
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Digwal CS, Yadav U, Ramya PVS, Sana S, Swain B, Kamal A. Vanadium-Catalyzed Oxidative C(CO)–C(CO) Bond Cleavage for C–N Bond Formation: One-Pot Domino Transformation of 1,2-Diketones and Amidines into Imides and Amides. J Org Chem 2017; 82:7332-7345. [DOI: 10.1021/acs.joc.7b00950] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chander Singh Digwal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, India
| | - Upasana Yadav
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, India
| | - P. V. Sri Ramya
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, India
| | - Sravani Sana
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, India
| | - Baijayantimala Swain
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, India
| | - Ahmed Kamal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Balanagar, Hyderabad 500037, India
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Saikia I, Borah AJ, Phukan P. Use of Bromine and Bromo-Organic Compounds in Organic Synthesis. Chem Rev 2016; 116:6837-7042. [PMID: 27199233 DOI: 10.1021/acs.chemrev.5b00400] [Citation(s) in RCA: 283] [Impact Index Per Article: 35.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Bromination is one of the most important transformations in organic synthesis and can be carried out using bromine and many other bromo compounds. Use of molecular bromine in organic synthesis is well-known. However, due to the hazardous nature of bromine, enormous growth has been witnessed in the past several decades for the development of solid bromine carriers. This review outlines the use of bromine and different bromo-organic compounds in organic synthesis. The applications of bromine, a total of 107 bromo-organic compounds, 11 other brominating agents, and a few natural bromine sources were incorporated. The scope of these reagents for various organic transformations such as bromination, cohalogenation, oxidation, cyclization, ring-opening reactions, substitution, rearrangement, hydrolysis, catalysis, etc. has been described briefly to highlight important aspects of the bromo-organic compounds in organic synthesis.
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Affiliation(s)
| | - Arun Jyoti Borah
- Department of Chemistry, Gauahti University , Guwahati-781014, Assam, India
| | - Prodeep Phukan
- Department of Chemistry, Gauahti University , Guwahati-781014, Assam, India
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15
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Copper-Catalyzed Synthesis of Imides from Aldehydes or Alcohols and Amine Hydrochloride Salts. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403624] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Fard MA, Khalili Najafabadi B, Hesari M, Workentin MS, Corrigan JF. New polydentate trimethylsilyl chalcogenide reagents for the assembly of polyferrocenyl architectures. Chemistry 2014; 20:7037-47. [PMID: 24806828 DOI: 10.1002/chem.201400185] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Indexed: 01/18/2023]
Abstract
A series of polychalcogenotrimethylsilane complexes Ar(CH2ESiMe3)n, (Ar = aryl; E = S, Se; n = 2, 3, and 4) can be prepared from the corresponding polyorganobromide and M[ESiMe3] (M = Na, Li). These represent the first examples of the incorporation of such a large number of reactive -ESiMe3 moieties onto an organic molecular framework. They are shown to be convenient reagents for the preparation of the polyferrocenylseleno- and thioesters from ferrocenoyl chloride. The synthesis, structures, and spectroscopic properties of the new silyl chalcogen complexes 1,4-(Me3SiECH2)2(C6Me4) (E = S, 1; E = Se, 2), 1,3,5-(Me3SiECH2)3(C6Me3) (E = S, 3; E = Se, 4) and 1,2,4,5-(Me3SiECH2)4(C6H2) (E = S, 5; E = Se, 6) and the polyferrocenyl chalcogenoesters [1,4-{FcC(O)ECH2}2(C6Me4)] (E = S, 7; E = Se, 8), [1,3,5-{FcC(O)ECH2}3(C6Me3)] (E = S, 9; E = Se, 10) and [1,2,4,5-{FcC(O)ECH2}4(C6H2)] (E = S, 11 illustrated; E = Se, 12) are reported. The new polysilylated reagents and polyferrocenyl chalcogenoesters have been characterized by multinuclear NMR spectroscopy ((1)H, (13)C, (77)Se), electrospray ionization mass spectrometry and, for complexes 1, 2, 3, 4, 7, 8, and 11, single-crystal X-ray diffraction. The cyclic voltammograms of complexes 7-11 are presented.
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Affiliation(s)
- Mahmood Azizpoor Fard
- Department of Chemistry, The University of Western Ontario, London, ON, N6A 5B7 (Canada), Fax: (+1)519-661-3022
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Murakami K, Imoto J, Matsubara H, Yoshida S, Yorimitsu H, Oshima K. Copper-Catalyzed Extended Pummerer Reactions of Ketene Dithioacetal Monoxides with Alkynyl Sulfides and Ynamides with an Accompanying Oxygen Rearrangement. Chemistry 2013; 19:5625-30. [DOI: 10.1002/chem.201204072] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2012] [Revised: 12/29/2012] [Indexed: 11/06/2022]
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19
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Khodaei MM, Nazari E. n-Butylammonium carboxylates/Tf2O: ionic liquid based systems for the synthesis of unsymmetrical imides via a Ritter-type reaction. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.03.121] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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20
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Carbonylative formation of N-acetyl-2,6-difluorobenzamide through N–H bond activation of 2,6-difluorobenzamide with Ni(II) complex supported with phosphine ligands. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.04.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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22
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Chang JWW, Ton TMU, Tania S, Taylor PC, Chan PWH. Practical copper(I)-catalysed amidation of aldehydes. Chem Commun (Camb) 2009; 46:922-4. [PMID: 20107651 DOI: 10.1039/b918588g] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The direct synthesis of amides by insertion into the C-H bond of aldehydes is shown to be a practical procedure through application of cheap, readily available catalysts generated in situ from copper(i) halides and pyridine.
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Affiliation(s)
- Joyce Wei Wei Chang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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