1
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Xu J, Liu Y, Wang Q, Tao X, Ni S, Zhang W, Yu L, Pan Y, Wang Y. Electrochemical deoxygenative amination of stabilized alkyl radicals from activated alcohols. Nat Commun 2024; 15:6116. [PMID: 39033147 PMCID: PMC11271281 DOI: 10.1038/s41467-024-50596-3] [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: 05/16/2024] [Accepted: 07/10/2024] [Indexed: 07/23/2024] Open
Abstract
Alkylamine structures represent one of the most functional and widely used in organic synthesis and drug design. However, the general methods for the functionalization of the shielded and deshielded alkyl radicals remain elusive. Here, we report a general deoxygenative amination protocol using alcohol-derived carbazates and nitrobenzene under electrochemical conditions. A range of primary, secondary, and tertiary alkylamines are obtained. This practical procedure can be scaled up through electrochemical continuous flow technique.
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Affiliation(s)
- Jia Xu
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Yilin Liu
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Qing Wang
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Xiangzhang Tao
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Shengyang Ni
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Weigang Zhang
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Lei Yu
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Yi Pan
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China
| | - Yi Wang
- Jiangsu Key Laboratory of Advanced Organic Materials, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, China.
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2
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Alam T, Patel BK. Electrochemical N-Aroylation of Sulfoximines by Using Benzoyl Hydrazines with H 2 Generation. Chemistry 2023:e202303444. [PMID: 37990751 DOI: 10.1002/chem.202303444] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
Developed here is a robust electrochemical cross-coupling reaction between aroyl hydrazine and NH-sulfoximine via concomitant cleavage and formation of C(sp2 )-N bonds with the evolution of H2 and N2 as innocuous by-products. This sustainable protocol avoids the use of toxic reagents and occurs at room temperature. The reaction proceeds via the generation of an aroyl and a sulfoximidoyl radical via anodic oxidation under constant current electrolysis (CCE), affording N-aroylated sulfoximine. The strategy is applied to late-stage sulfoximidation of L-menthol, (-)-borneol, D-glucose, vitamin-E derivatives, and marketed drugs such as probenecid, ibuprofen, flurbiprofen, ciprofibrate, and sulindac. In addition, the present methodology is mild, high functional group tolerance with broad substrate scope and scalable.
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Affiliation(s)
- Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, Guwahati, Assam, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, 781039, Guwahati, Assam, India
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3
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Ren T, Qu R, Song L. Electrochemical Fe-catalysed radical cyclization for the synthesis of oxindoles. Org Biomol Chem 2023; 21:8089-8093. [PMID: 37779504 DOI: 10.1039/d3ob01370g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
We report an efficient and sustainable electrocatalytic approach for the synthesis of 3,3-disubstituted 2-oxindoles bearing ester groups from readily accessible N-arylacrylamides and carbazates. The reaction proceeds through an electrochemical iron-catalyzed radical addition/cyclization sequence with a commercially available iron catalyst and carbazates as alkoxycarbonyl radical precursors. This mild and operationally simple method transforms a wide range of structurally diverse N-arylacrylamides into oxindole derivatives in good yields and can be smoothly scaled up for the preparation of synthetically valuable oxindoles that are key intermediates for the synthesis of natural products.
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Affiliation(s)
- Tianxiang Ren
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, China.
| | - Ruina Qu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, China.
| | - Lu Song
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing, China.
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4
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Synthesis of Ester-Containing Chroman-4-Ones via Cascade Radical Annulation of 2-(Allyloxy)Arylaldehydes with Oxalates under Metal Free Conditions. Int J Mol Sci 2023; 24:ijms24055028. [PMID: 36902464 PMCID: PMC10003100 DOI: 10.3390/ijms24055028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/23/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
A convenient and practical method for the synthesis of bioactive ester-containing chroman-4-ones through the cascade radical cyclization of 2-(allyloxy)arylaldehydes and oxalates is described. The preliminary studies suggest that an alkoxycarbonyl radical might be involved in the current transformation, which was generated via the decarboxylation of oxalates in the presence of (NH4)2S2O8.
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5
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Ogundipe OO, Shoberu A, Xiao M, Zou JP. Copper-Catalyzed Radical Hydrazono-Phosphorylation of Alkenes. J Org Chem 2022; 87:15820-15829. [PMID: 36374155 DOI: 10.1021/acs.joc.2c01832] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
An efficient copper-catalyzed radical hydrazono-phosphorylation of alkenes with hydrazine derivatives and diarylphosphine oxides is described. The reaction provides a general and convenient method toward the synthesis of diverse β-hydrazonophosphine oxides in satisfactory yields. Based on conducted mechanistic experiments, a mechanism involving Ag-catalyzed oxidative generation of phosphinoyl radicals and subsequent addition to alkenes followed by Cu-assisted hydrazonation is proposed. Moreover, the practicability of the reaction is successfully demonstrated by its successful application on a gram scale.
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Affiliation(s)
- Olukayode Olamiji Ogundipe
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Adedamola Shoberu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Mei Xiao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Jian-Ping Zou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
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6
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Sarothiya D, Bhawale RT, Kshirsagar UA. Organic-Dye-Catalyzed Visible-Light-Mediated Regioselective C-3 Alkoxycarbonylation of Imidazopyridines by Carbazates. J Org Chem 2022; 87:14915-14922. [PMID: 36210521 DOI: 10.1021/acs.joc.2c01742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
A mild and eco-friendly visible-light-mediated regioselective C-H alkoxycarbonylation of imidazo[1,2-a]pyridine heterocycles using rose bengal as a photoredox catalyst at room temperature has been developed. Biologically important alkoxycarboxylated imidazo[1,2-a]pyridines at the C-3 position as well as coumarins and quinoxalin-2(1H)-ones have been prepared. The present approach has the advantage of having a user- and eco-friendly catalyst, a carbonyl source, as well as extremely mild conditions for direct and regioselective C-H alkoxycarbonylation mediated by visible light as a green energy source.
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Affiliation(s)
- Durgesh Sarothiya
- Department of Chemistry, Indian Institute of Technology Indore, Khandwa Road, Indore 453552, India
| | - Rajesh T Bhawale
- Department of Chemistry, Indian Institute of Technology Indore, Khandwa Road, Indore 453552, India
| | - Umesh A Kshirsagar
- Department of Chemistry, Indian Institute of Technology Indore, Khandwa Road, Indore 453552, India
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7
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Alam T, Rakshit A, Dhara HN, Palai A, Patel BK. Electrochemical Amidation: Benzoyl Hydrazine/Carbazate and Amine as Coupling Partners. Org Lett 2022; 24:6619-6624. [PMID: 36069423 DOI: 10.1021/acs.orglett.2c02626] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An electrochemical amidation of benzoyl hydrazine/carbazate and primary/secondary amine as coupling partners via concomitant cleavage and formation of C(sp2)-N bonds has been achieved. This methodology proceeds under metal-free and exogenous oxidant-free conditions producing N2 and H2 as byproducts. Mechanistic studies reveal the in situ generations of both acyl and N-centered radicals from benzoyl hydrazines and amines. The utility of this protocol is demonstrated through a large-scale, and synthesis of bezafibrate, a hyperlipidemic drug.
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Affiliation(s)
- Tipu Alam
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Amitava Rakshit
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Hirendra Nath Dhara
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Angshuman Palai
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati 781039, India
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8
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Tang Y, Dai K, Xiang X, Yang Y, Li M. Synthesis of ester-functionalized indolo[2,1- a]isoquinolines via iron-catalyzed radical cascade cyclization of 2-aryl- N-acryloyl indoles with carbazates. Org Biomol Chem 2022; 20:5704-5711. [PMID: 35838169 DOI: 10.1039/d2ob00934j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
An FeCl2·4H2O-catalyzed oxidative alkoxycarbonylation/cyclization reaction of 2-aryl-N-acryloyl indoles with carbazates leading to ester-functionalized indolo[2,1-a]isoquinoline derivatives has been developed. The reaction features mild reaction conditions and broad functional group tolerance. Moreover, the ester group could be easily converted to the corresponding free acid and alcohol, and has high potential applications in organic and pharmaceutical synthesis. A radical pathway was proposed to explain this experiment.
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Affiliation(s)
- Yucai Tang
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
| | - Kaiming Dai
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
| | - Xingxian Xiang
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
| | - Yiting Yang
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
| | - Min Li
- College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Changde 415000, China.
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9
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Visible light-induced PPh2Cy/CsI-promoted cascade radical decarboxylative/cyclization of redox-active esters with acrylamides. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132849] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Kong Y, Wei K, Yan G. Radical coupling reactions of hydrazines via photochemical and electrochemical strategies. Org Chem Front 2022. [DOI: 10.1039/d2qo01348g] [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
Hydrazines are versatile building blocks in organic synthesis.
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Affiliation(s)
- Yilin Kong
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Kangning Wei
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
| | - Guobing Yan
- College of Jiyang, Zhejiang A&F University, Zhuji 311800, China
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11
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Wu X, Zhao F, Ji X, Huang H. Visible Light-Assisted Photocatalyst-Free Tandem Sulfonylation/ Cyclization for the Synthesis of Oxindoles. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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12
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Zhang J, Wu M, Ju H, Yang H, Qian B, Ding K, Wu J, Xie M. K2S2O8-mediated acylarylation of unactivated alkenes via acyl radical addition/C–H annulation cascade of N-allyl-indoles with silver cocatalysis. Org Chem Front 2022. [DOI: 10.1039/d1qo01069g] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
A silver-catalyzed, K2S2O8-mediated protocol to access the regioselective acylarylation of unactivated alkenes was reported.
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Affiliation(s)
- Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Manyi Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Hu Ju
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Haitao Yang
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Baiyang Qian
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Ke Ding
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Jiaping Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education), Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241002, China
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13
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Ma X, Sun A, Wang KK. Unexpected ester and phosphonate radical generation by hypervalent iodine compounds for synthesizing 6-phenanthridine derivatives. NEW J CHEM 2022. [DOI: 10.1039/d2nj01186g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An unprecedented elimination of diazomethane process of a diazo group-bearing hypervalent iodine reagent has been described.
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Affiliation(s)
- Xueji Ma
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China
| | - Aili Sun
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China
| | - Kai-Kai Wang
- School of Pharmacy, Key Laboratory of Nano-carbon Modified Film Technology Engineering of Henan Province, Xinxiang University, Xinxiang 453000, P. R. China
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14
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Pounder A, Tam W. Iron-catalyzed domino coupling reactions of π-systems. Beilstein J Org Chem 2021; 17:2848-2893. [PMID: 34956407 PMCID: PMC8685557 DOI: 10.3762/bjoc.17.196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 11/24/2021] [Indexed: 12/26/2022] Open
Abstract
The development of environmentally benign, inexpensive, and earth-abundant metal catalysts is desirable from both an ecological and economic standpoint. Certainly, in the past couple decades, iron has become a key player in the development of sustainable coupling chemistry and has become an indispensable tool in organic synthesis. Over the last ten years, organic chemistry has witnessed substantial improvements in efficient synthesis because of domino reactions. These protocols are more atom-economic, produce less waste, and demand less time compared to a classical stepwise reaction. Although iron-catalyzed domino reactions require a mindset that differs from the more routine noble-metal, homogenous iron catalysis they bear the chance to enable coupling reactions that rival that of noble-metal-catalysis. This review provides an overview of iron-catalyzed domino coupling reactions of π-systems. The classifications and reactivity paradigms examined should assist readers and provide guidance for the design of novel domino reactions.
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Affiliation(s)
- Austin Pounder
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
| | - William Tam
- Guelph-Waterloo Centre for Graduate Work in Chemistry and Biochemistry, Department of Chemistry, University of Guelph, Guelph, Ontario, N1G 2W1, Canada
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15
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Wang YJ, Zhang GY, Shoberu A, Zou JP. Iron-catalyzed oxidative amidation of acylhydrazines with amines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153316] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Wang SN, Zhang GY, Shoberu A, Zou JP. Copper-Catalyzed Coupling of Amines with Carbazates: An Approach to Carbamates. J Org Chem 2021; 86:9067-9075. [PMID: 34139836 DOI: 10.1021/acs.joc.1c01031] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new approach for the preparation of carbamates via the copper-catalyzed cross-coupling reaction of amines with alkoxycarbonyl radicals generated from carbazates is described. This environmentally friendly protocol takes place under mild conditions and is compatible with a wide range of amines, including aromatic/aliphatic and primary/secondary substrates.
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Affiliation(s)
- Song-Ning Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Guo-Yu Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Adedamola Shoberu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
| | - Jian-Ping Zou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Soochow University, 199 Renai Street, Suzhou, Jiangsu 215123, China
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17
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Tang WY, Chen L, Zheng M, Zhan LW, Hou J, Li BD. Photoinduced Oxidative Alkoxycarbonylation of Alkenes with Alkyl Formates. Org Lett 2021; 23:3939-3943. [PMID: 33974437 DOI: 10.1021/acs.orglett.1c01096] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A photoinduced oxidative alkoxycarbonylation of alkenes initiated by intermolecular addition of alkoxycarbonyl radicals has been demonstrated. Employing alkyl formates as alkoxycarbonyl radical sources, a range of α,β-unsaturated esters were obtained with good regioselectivity and E selectivity under ambient conditions.
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Affiliation(s)
- Wan-Ying Tang
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ling Chen
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ming Zheng
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Le-Wu Zhan
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jing Hou
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Bin-Dong Li
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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18
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Chen J, Li JH, Zhu YP, Wang QA. Copper-catalyzed enantioselective arylboronation of activated alkenes leading to chiral 3,3′-disubstituted oxindoles. Org Chem Front 2021. [DOI: 10.1039/d1qo00186h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Copper-catalyzed asymmetric arylboronation of activated alkenes for producing highly enantioenriched 3-boroalkyl oxindoles and incorporating pharmacophores is depicted.
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Affiliation(s)
- Jiangfei Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- China
- School of Pharmacy
| | - Yan-Ping Zhu
- School of Pharmacy
- Key Laboratory of Molecular Pharmacology and Drug Evaluation
- Ministry of Education
- Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong
- Yantai University
| | - Qiu-An Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- Hunan University
- Changsha 410082
- China
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19
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Xie S, Su L, Mo M, Zhou W, Zhou Y, Dong J. Cu-Catalyzed Oxidative Thioesterification of Aroylhydrazides with Disulfides. J Org Chem 2021; 86:739-749. [PMID: 33301325 DOI: 10.1021/acs.joc.0c02328] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
An alternative thioesterification reaction via copper-catalyzed oxidative coupling of readily available aroylhydrazides with disulfides is developed, in which oxidative expulsion of N2 overcomes the activation barrier between the carboxylic acid derivatives and the products. The reaction produces various thioesters in good to excellent yields with good functional group tolerance. In the reaction, stable and easily available aroylhydrazides are used as acyl sources and the relatively odorless disulfides are used as S sources. Mechanistic investigations demonstrate that the reaction of copper salt and oxidant (NH4)2S2O8 allows for achievement of tandem processes, including deprotonation, free-radical-mediated denitrogenation, and C-S bond formation.
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Affiliation(s)
- Shimin Xie
- Department of Educational Science, Hunan First Normal University, Changsha 410205, China.,College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China.,Key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Lebin Su
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Min Mo
- Department of Educational Science, Hunan First Normal University, Changsha 410205, China
| | - Wang Zhou
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yongbo Zhou
- College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jianyu Dong
- Department of Educational Science, Hunan First Normal University, Changsha 410205, China.,College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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20
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Ji M, Xu L, Luo X, Jiang M, Wang S, Chen JQ, Wu J. Alkoxycarbonyl radicals from alkyloxalyl chlorides: photoinduced synthesis of isoquinolinediones under visible light irradiation. Org Chem Front 2021. [DOI: 10.1039/d1qo01368h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Alkyloxalyl chlorides, generated from alcohols and oxalyl chlorides, are used as alkoxycarbonyl radicals in the reaction of N-acryloyl benzamides under photocatalysis at room temperature.
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Affiliation(s)
- Mingjuan Ji
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou 318000, China
| | - Liang Xu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou 318000, China
| | - Xiangxiang Luo
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou 318000, China
| | - Minghui Jiang
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou 318000, China
| | - Siyu Wang
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou 318000, China
| | - Jian-Qiang Chen
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou 318000, China
| | - Jie Wu
- School of Pharmaceutical and Materials Engineering & Institute for Advanced Studies, Taizhou University, Taizhou 318000, China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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21
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Rana S, Biswas JP, Paul S, Paik A, Maiti D. Organic synthesis with the most abundant transition metal–iron: from rust to multitasking catalysts. Chem Soc Rev 2021; 50:243-472. [DOI: 10.1039/d0cs00688b] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The promising aspects of iron in synthetic chemistry are being explored for three-four decades as a green and eco-friendly alternative to late transition metals. This present review unveils these rich iron-chemistry towards different transformations.
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Affiliation(s)
- Sujoy Rana
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | | | - Sabarni Paul
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Aniruddha Paik
- Department of Chemistry
- University of North Bengal
- Darjeeling
- India
| | - Debabrata Maiti
- Department of Chemistry
- IIT Bombay
- Mumbai-400076
- India
- Tokyo Tech World Research Hub Initiative (WRHI)
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22
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Zheng M, Hou J, Zhan LW, Huang Y, Chen L, Hua LL, Li Y, Tang WY, Li BD. Visible-Light-Driven, Metal-Free Divergent Difunctionalization of Alkenes Using Alkyl Formates. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04332] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Ming Zheng
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Jing Hou
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Le-Wu Zhan
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yan Huang
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Ling Chen
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Li-Li Hua
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Yan Li
- School of Physics and Electronic-Electrical Engineering, Ningxia University, Yinchuan 750021, China
| | - Wan-Ying Tang
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
| | - Bin-Dong Li
- College of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
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23
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Qiao S, Qian PC, Chen F, Cheng J. Iron-catalyzed radical cascade 6- endo cyclization of dienes towards fused nitrogen heterocycles initiated by an alkoxycarbonyl radical. Org Biomol Chem 2020; 18:7086-7089. [PMID: 32910128 DOI: 10.1039/d0ob01438a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An iron-catalyzed radical cascade cyclization of dienes initiated by an alkoxycarbonyl radical has been developed in the presence of (NH4)2S2O8, leading to a series of fused nitrogen heterocyclic compounds under relatively mild reaction conditions. The reaction is triggered by the addition of an alkyoxycarbonyl radical derived from the cleavage of alkoxyformyl hydrazide. Afterward, the formed nucleophilic radical preferred addition to the electron-neutral vinyl rather than the electron-deficient vinyl, followed by cascade 6-endo cyclization and further radical cyclization.
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Affiliation(s)
- Shanshan Qiao
- School of Petrochemical Engineering, and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Peng-Cheng Qian
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Fan Chen
- Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Jiang Cheng
- School of Petrochemical Engineering, and Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China. and Institute of New Materials & Industry Technology, College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
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24
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Li X, Xu J, Li Y, Kramer S, Skrydstrup T, Lian Z. Silylcarboxylic Acids as Bifunctional Reagents: Application in Palladium‐Catalyzed External‐CO‐Free Carbonylative Cross‐Coupling Reactions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000586] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Xiong Li
- Department of Dermatology State Key Laboratory of Biotherapy and Cancer Center West China Hospital and West China School of Pharmacy Sichuan University Chengdu 610041 People's Republic of China
| | - Jie Xu
- Department of Dermatology State Key Laboratory of Biotherapy and Cancer Center West China Hospital and West China School of Pharmacy Sichuan University Chengdu 610041 People's Republic of China
| | - Yue Li
- Department of Dermatology State Key Laboratory of Biotherapy and Cancer Center West China Hospital and West China School of Pharmacy Sichuan University Chengdu 610041 People's Republic of China
| | - Søren Kramer
- Department of Chemistry Technical University of Denmark 2800 Kgs. Lyngby Denmark
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center Interdisciplinary Nanoscience Center (iNANO) and Department of Chemistry Aarhus University Gustav WiedsVej 14 8000 Aarhus C Denmark
| | - Zhong Lian
- Department of Dermatology State Key Laboratory of Biotherapy and Cancer Center West China Hospital and West China School of Pharmacy Sichuan University Chengdu 610041 People's Republic of China
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25
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Yogesh Kumar GR, Begum NS. Palladium-Catalyzed Oxidative C-H Alkoxycarbonylation of Arenes with Alkylcarbazates Directed by N-Heterocyclic Substituents. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
| | - Noor Shahina Begum
- Department of Studies in Chemistry; Bangalore University; Jnana Bharathi Campus Bangalore 560056 Karnataka India
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26
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Chu X, Wu Y, Lu H, Yang B, Ma C. Copper-Catalyzed Direct Carbamoylation of Quinoxalin-2(1H
)-ones with Hydrazinecarboxamides Under Mild Conditions. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901858] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xianglong Chu
- school of Chemistry and Chemical Engineering; Shandong University; 250100 Jinan P.R. China
| | - Yujuan Wu
- school of Chemistry and Chemical Engineering; Shandong University; 250100 Jinan P.R. China
| | - Haigen Lu
- school of Chemistry and Chemical Engineering; Shandong University; 250100 Jinan P.R. China
| | - Bingchuan Yang
- School of Chemistry and Chemical Engineering; Liaocheng University; 252059 Liaocheng P.R. China
| | - Chen Ma
- school of Chemistry and Chemical Engineering; Shandong University; 250100 Jinan P.R. China
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27
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Yogesh Kumar GR, Begum NS, Mohammed Imran K. Mn-mediated oxidative radical cyclization of 2-(azidomethyl)phenyl isocyanides with carbazate: access to quinazoline-2-carboxylates. NEW J CHEM 2020. [DOI: 10.1039/d0nj00479k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mn-TBHP mediated oxidative radical cyclization of 2-(azidomethyl)phenyl isocyanides using methyl carbazate has been described.
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Affiliation(s)
| | - Noor Shahina Begum
- Department of Studies in Chemistry
- Bangalore University
- Jnana Bharathi Campus
- Bangalore 560056
- India
| | - Khan Mohammed Imran
- Department of Studies in Chemistry
- Bangalore University
- Jnana Bharathi Campus
- Bangalore 560056
- India
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28
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Yuan Z, Chen S, Weng Z. Copper-catalyzed synthesis of trifluoromethylated bis(indolyl)arylmethanes from 2-arylindoles and 2,2,2-trifluoroacetohydrazide. Org Chem Front 2020. [DOI: 10.1039/c9qo01131e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A copper-catalyzed synthesis of trifluoromethylated bis(indolyl)arylmethanes via reaction of 2-arylindoles with 2,2,2-trifluoroacetohydrazide was developed.
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Affiliation(s)
- Zihang Yuan
- State Key Laboratory of Photocatalysis on Energy and Environment
- and Key Laboratory of Molecule Synthesis and Function Discovery
- College of Chemistry
- Fuzhou University
- Fuzhou
| | - Shouxiong Chen
- State Key Laboratory of Photocatalysis on Energy and Environment
- and Key Laboratory of Molecule Synthesis and Function Discovery
- College of Chemistry
- Fuzhou University
- Fuzhou
| | - Zhiqiang Weng
- State Key Laboratory of Photocatalysis on Energy and Environment
- and Key Laboratory of Molecule Synthesis and Function Discovery
- College of Chemistry
- Fuzhou University
- Fuzhou
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29
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Ke Q, Yan G, Yu J, Wu X. Recent advances in the direct functionalization of quinoxalin-2(1H)-ones. Org Biomol Chem 2019; 17:5863-5881. [PMID: 31157814 DOI: 10.1039/c9ob00782b] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The direct C3-functionalization of quinoxalin-2(1H)-ones via C-H bond activation has recently attracted considerable attention, due to their diverse biological activities and chemical properties. This review will focus on the recent achievements, mainly including arylation, alkylation, acylation, alkoxycarbonylation, amination, amidation and phosphonation of quinoxalin-2(1H)-ones. Their mechanisms are also discussed.
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Affiliation(s)
- Qiumin Ke
- Department of Chemistry, Lishui University, No. 1, Xueyuan Road, Lishui City 323000, Zhejiang Province, P. R. China.
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30
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Budai B, Leclair A, Wang Q, Zhu J. Copper-Catalyzed 1,2-Methoxy Methoxycarbonylation of Alkenes with Methyl Formate. Angew Chem Int Ed Engl 2019; 58:10305-10309. [PMID: 31106517 DOI: 10.1002/anie.201904263] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 05/06/2019] [Indexed: 01/05/2023]
Abstract
Reported here is a copper-catalyzed 1,2-methoxy methoxycarbonylation of alkenes by an unprecedented use of methyl formate as a source of both the methoxy and the methoxycarbonyl groups. This reaction transforms styrene and its derivatives into value-added β-methoxy alkanoates and cinnamates, as well as medicinally important five-membered heterocycles, such as functionalized tetrahydrofurans, γ-lactones, and pyrrolidines. A ternary β-diketiminato-CuI -styrene complex, fully characterized by NMR spectroscopy and X-ray crystallographic analysis, is capable of catalyzing the same transformation. These findings suggest that pre-coordination of electron-rich alkenes to copper might play an important role in accelerating the addition of nucleophilic radicals to electron-rich alkenes, and could have general implications in the design of novel radical-based transformations.
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Affiliation(s)
- Balázs Budai
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Alexandre Leclair
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural Products, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304, 1015, Lausanne, Switzerland
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31
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Budai B, Leclair A, Wang Q, Zhu J. Copper‐Catalyzed 1,2‐Methoxy Methoxycarbonylation of Alkenes with Methyl Formate. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904263] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Balázs Budai
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Alexandre Leclair
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Qian Wang
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
| | - Jieping Zhu
- Laboratory of Synthesis and Natural ProductsInstitute of Chemical Sciences and EngineeringEcole Polytechnique Fédérale de Lausanne, EPFL-SB-ISIC-LSPN, BCH 5304 1015 Lausanne Switzerland
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32
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Metal-free C3-alkoxycarbonylation of quinoxalin-2(1H)-ones with carbazates as ecofriendly ester sources. Sci China Chem 2019. [DOI: 10.1007/s11426-018-9446-1] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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33
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Yu Y, Zheng P, Wu Y, Ye X. Electrochemical cobalt-catalyzed C-H or N-H oxidation: a facile route to synthesis of substituted oxindoles. Org Biomol Chem 2019; 16:8917-8921. [PMID: 30427366 DOI: 10.1039/c8ob02485e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Two comparable protocols for the electrochemical cobalt-catalyzed C-H/N-H oxidation have been exploited for the synthesis of substituted oxindoles via radical pathways. The electrochemical cobalt-catalyzed system was demonstrated to be efficient and eco-friendly and avoided the use of stoichiometric oxidants to afford the arylation or alkylation products in good yields at room temperature.
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Affiliation(s)
- Yue Yu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China.
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34
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Li X, Han MY, Wang B, Wang L, Wang M. Visible-light-induced deboronative alkylarylation of acrylamides with organoboronic acids. Org Biomol Chem 2019; 17:6612-6619. [DOI: 10.1039/c9ob01023h] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A visible-light-induced deboronative alkylarylation of acrylamides with boronic acids was developed via a tandem reaction process.
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Affiliation(s)
- Xuezhi Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Man-Yi Han
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Bin Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
- State Key Laboratory of Organometallic Chemistry
| | - Min Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
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35
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Yu H, Xuan P, Lin J, Jiao M. Copper(I)-catalyzed synthesis of 3,3-disubstituted isoindolin-1-ones from enamides via cascade radical addition and cyclization. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.09.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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36
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Yu H, Jiao M, Fang X, Xuan P. Regioselective Radical Ring Closure of Tertiary Enamides to the Synthesis of Trifluoroethyl‐containing
N
‐Acyl Isoindoline and
N
‐Acyl Tetrahydroisoquinoline Derivatives. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800686] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hui Yu
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and SustainabilityTongji University 1239 Siping Road Shanghai 200092 People's Republic of China
| | - Mingdong Jiao
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and SustainabilityTongji University 1239 Siping Road Shanghai 200092 People's Republic of China
| | - Xiaowei Fang
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and SustainabilityTongji University 1239 Siping Road Shanghai 200092 People's Republic of China
| | - Pengfei Xuan
- School of Chemical Science and Engineering, Shanghai Key Lab of Chemical Assessment and SustainabilityTongji University 1239 Siping Road Shanghai 200092 People's Republic of China
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37
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Yoshinaga K, Tsubaki N, Murata Y, Noda Y, Nishikata T. Ppm Cu Catalyst Enables tert-Alkylation Followed by C-H Cyclization To Synthesize Substituted Oxindoles. ACS OMEGA 2018; 3:9020-9026. [PMID: 31459034 PMCID: PMC6645334 DOI: 10.1021/acsomega.8b01397] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 08/01/2018] [Indexed: 06/10/2023]
Abstract
In this paper, we established highly efficient Cu-catalyzed tandem tert-alkylation C-H cyclization of α-bromocarbonyls and methacrylamides to produce substituted oxindoles. The maximum turnover number was up to 48 000 with reasonable yield. Although the catalyst loadings were very low, the reaction was not involving radical chain reaction. The resulting oxindoles were able to transform into aza-multicyclic compound via a reduction.
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38
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Yu H, Xuan P, Jiao M, Lin J. Synthesis of 1,1-Disubstituted N
-Acyl Tetrahydroisoquinolines from Enamides by Cascade Radical Addition and Cyclization. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800748] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hui Yu
- School of Chemical Science and Engineering; Shanghai Key Lab of Chemical Assessment and Substainability; Tongji University; 1239 Siping Road 200092 Shanghai P. R. China
| | - Pengfei Xuan
- School of Chemical Science and Engineering; Shanghai Key Lab of Chemical Assessment and Substainability; Tongji University; 1239 Siping Road 200092 Shanghai P. R. China
| | - Mingdong Jiao
- School of Chemical Science and Engineering; Shanghai Key Lab of Chemical Assessment and Substainability; Tongji University; 1239 Siping Road 200092 Shanghai P. R. China
| | - Jingbo Lin
- School of Chemical Science and Engineering; Shanghai Key Lab of Chemical Assessment and Substainability; Tongji University; 1239 Siping Road 200092 Shanghai P. R. China
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39
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40
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He ZY, Guo JY, Tian SK. Copper-Catalyzed Oxidative Carbamoylation of N
-Arylacrylamides with Hydrazinecarboxamides Leading to 2-(Oxindol-3-yl)acetamides. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800012] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Zeng-Yang He
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry; University of Science and Technology of China; Hefei, Anhui 230026 People's Republic of China
| | - Jing-Yu Guo
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry; University of Science and Technology of China; Hefei, Anhui 230026 People's Republic of China
| | - Shi-Kai Tian
- Hefei National Laboratory for Physical Sciences at the Microscale, Center for Excellence in Molecular Synthesis, and Department of Chemistry; University of Science and Technology of China; Hefei, Anhui 230026 People's Republic of China
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41
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Zhang MZ, Luo N, Long RY, Gou XT, Shi WB, He SH, Jiang Y, Chen JY, Chen T. Transition-Metal-Free Oxidative Aminooxyarylation of Alkenes: Annulations toward Aminooxylated Oxindoles. J Org Chem 2018; 83:2369-2375. [DOI: 10.1021/acs.joc.7b02740] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ming-Zhong Zhang
- School
of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Na Luo
- School
of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Rui-Yang Long
- School
of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Xian-Tao Gou
- School
of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Wen-Bing Shi
- School
of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Shu-Hua He
- School
of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Yong Jiang
- School
of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Jin-Yang Chen
- School
of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, China
| | - Tieqiao Chen
- State
Key Laboratory of Marine Resource Utilization in South China Sea,
College of Materials and Chemical Engineering, Hainan University, Haikou 570100, China
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42
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Cui Z, Du DM. Decarboxylative Synthesis of Functionalized Oxindoles via An Iron-Initiated Radical Chain Process and Application in Constructing Diverse Fused-Indoline Heterocycles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700976] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhihao Cui
- School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 People's Republic of China
| | - Da-Ming Du
- School of Chemistry and Chemical Engineering; Beijing Institute of Technology; Beijing 100081 People's Republic of China
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43
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Li X, Fang X, Zhuang S, Liu P, Sun P. Photoredox Catalysis: Construction of Polyheterocycles via Alkoxycarbonylation/Addition/Cyclization Sequence. Org Lett 2017; 19:3580-3583. [PMID: 28656766 DOI: 10.1021/acs.orglett.7b01553] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel visible-light-induced cascade reaction for the preparation of ester-functionalized polyheterocycles was developed under metal-free conditions, which was initiated by an intermolecular radical addition to a carbon-carbon double bond of N-arylacrylamide derivatives using alkyl carbazate as the ester source followed by cyano-mediated cyclization. The desired phenanthridine derivative products were isolated in moderate to high yields with broad substrate scope.
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Affiliation(s)
- Xuanxuan Li
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
| | - Xinxin Fang
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
| | - Shengyi Zhuang
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
| | - Ping Liu
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
| | - Peipei Sun
- School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, Nanjing Normal University , Nanjing 210023, China
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44
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Gualandi A, Mengozzi L, Cozzi PG. Iron-Promoted Radical Reactions: Current Status and Perspectives. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700151] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Andrea Gualandi
- Dipartimento di Chimica “G. Ciamician”; ALMA MATER STUDIORUM Università di Bologna; Via Selmi 2 40126 Bologna Italy
| | - Luca Mengozzi
- Dipartimento di Chimica “G. Ciamician”; ALMA MATER STUDIORUM Università di Bologna; Via Selmi 2 40126 Bologna Italy
| | - Pier Giorgio Cozzi
- Dipartimento di Chimica “G. Ciamician”; ALMA MATER STUDIORUM Università di Bologna; Via Selmi 2 40126 Bologna Italy
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45
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Biswas P, Paul S, Guin J. Aerobic Radical-Cascade Alkylation/Cyclization of α,β-Unsaturated Amides: an Efficient Approach to Quaternary Oxindoles. Angew Chem Int Ed Engl 2016; 55:7756-60. [DOI: 10.1002/anie.201603809] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Promita Biswas
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
| | - Subhasis Paul
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
| | - Joyram Guin
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
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46
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Biswas P, Paul S, Guin J. Aerobic Radical-Cascade Alkylation/Cyclization of α,β-Unsaturated Amides: an Efficient Approach to Quaternary Oxindoles. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603809] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Promita Biswas
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
| | - Subhasis Paul
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
| | - Joyram Guin
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur Kolkata- 700032 India
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47
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Ji W, Tan H, Wang M, Li P, Wang L. Photocatalyst-free hypervalent iodine reagent catalyzed decarboxylative acylarylation of acrylamides with α-oxocarboxylic acids driven by visible-light irradiation. Chem Commun (Camb) 2016; 52:1462-5. [PMID: 26649450 DOI: 10.1039/c5cc08253f] [Citation(s) in RCA: 108] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A hypervalent iodine(iii) reagent catalyzed carbonylarylation of acrylamides with α-oxocarboxylic acids driven by visible-light without a photoredox catalyst has been developed. The reactions generate the corresponding products in good yields at room temperature. Experiments indicate that a blue LED (450-455 nm) is the most effective energy for the cleavage of the oxygen-iodine bond to initiate the reaction. Mechanistic studies further demonstrate that the reaction undergoes a cascade decarboxylative radical addition/cyclization process along with releasing CO2 and H2.
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Affiliation(s)
- Wangqin Ji
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Hui Tan
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Min Wang
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China.
| | - Lei Wang
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China. and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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48
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Wei F, Wei L, Zhou L, Tung CH, Ma Y, Xu Z. Divergent Synthesis of 3,3-Disubstituted Oxindoles Initiated by Palladium-Catalyzed Intramolecular Arylation of Unsaturated Amides. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600235] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Fang Wei
- Key Lab for Colloid and Interface Chemistry of Education Ministry; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Lei Wei
- Key Lab for Colloid and Interface Chemistry of Education Ministry; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Ling Zhou
- Department of Chemistry and Biochemistry; Miami University; Oxford OH 45056 USA
| | - Chen-Ho Tung
- Key Lab for Colloid and Interface Chemistry of Education Ministry; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Yudao Ma
- Key Lab for Colloid and Interface Chemistry of Education Ministry; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
| | - Zhenghu Xu
- Key Lab for Colloid and Interface Chemistry of Education Ministry; School of Chemistry and Chemical Engineering; Shandong University; Jinan 250100 People's Republic of China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; Shanghai 200032 PR China
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49
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Slutskyy Y, Overman LE. Generation of the Methoxycarbonyl Radical by Visible-Light Photoredox Catalysis and Its Conjugate Addition with Electron-Deficient Olefins. Org Lett 2016; 18:2564-7. [PMID: 27186995 DOI: 10.1021/acs.orglett.6b00895] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Visible-light photoredox-catalyzed fragmentation of methyl N-phthalimidoyl oxalate allows the direct construction of a 1,4-dicarbonyl structural motif by a conjugate addition of the methoxycarbonyl radical to reactive Michael acceptors. The regioselectivity of the addition of this alkoxyacyl radical species to electron-deficient olefins is heavily influenced by the electronic nature of the acceptor, behavior similar to that exhibited by nucleophilic alkyl radicals.
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Affiliation(s)
- Yuriy Slutskyy
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | - Larry E Overman
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
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50
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Gao Y, Lu W, Liu P, Sun P. Iron-Catalyzed Regioselective Alkoxycarbonylation of Imidazoheterocycles with Carbazates. J Org Chem 2016; 81:2482-7. [DOI: 10.1021/acs.joc.6b00046] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yongyuan Gao
- College of Chemistry and
Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle
Processes and Pollution Control, Jiangsu Collaborative Innovation
Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Weiye Lu
- College of Chemistry and
Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle
Processes and Pollution Control, Jiangsu Collaborative Innovation
Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Ping Liu
- College of Chemistry and
Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle
Processes and Pollution Control, Jiangsu Collaborative Innovation
Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
| | - Peipei Sun
- College of Chemistry and
Materials Science, Jiangsu Provincial Key Laboratory of Material Cycle
Processes and Pollution Control, Jiangsu Collaborative Innovation
Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing 210023, China
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