1
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Zhang TB, Wang F, Ouyang JY, Luo ZW, Qin JH, Li JH, Ouyang XH. Aryldiazonium-Salt-Triggered Carboxylative Azotization of Pyrroles or Indoles with Polyhalomethanes via Halogen-Atom Transfer (XAT). Org Lett 2024. [PMID: 38175821 DOI: 10.1021/acs.orglett.3c03701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2024]
Abstract
A halogen-atom-transfer (XAT)-based method for carbonylazotization of pyrroles or indoles with aryldiazonium salts and polyhalomethanes via dual C(sp2)-H bond functionalization is described. Using aryldiazonium salts realizes carbonylation/azotization of pyrroles or indoles via polyhalomethyl-radical-mediated and electrophilic substitution, thus providing a green, efficient, and step-economy approach for synthesis of multifunctional pyrroles or indoles from the easily available substrates. Notably, this strategy relies on the use of aryldiazonium salts to extend the well-established iodine atom transfer to bromine or chlorine atom transfer.
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Affiliation(s)
- Tian-Bao Zhang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Fang Wang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jun-Yao Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Zhen-Wei Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jing-Hao Qin
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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2
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Zhang W, Liu T, Ang HT, Luo P, Lei Z, Luo X, Koh MJ, Wu J. Modular and Practical 1,2-Aryl(Alkenyl) Heteroatom Functionalization of Alkenes through Iron/Photoredox Dual Catalysis. Angew Chem Int Ed Engl 2023; 62:e202310978. [PMID: 37699857 DOI: 10.1002/anie.202310978] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/09/2023] [Accepted: 09/11/2023] [Indexed: 09/14/2023]
Abstract
Efficient methods for synthesizing 1,2-aryl(alkenyl) heteroatomic cores, encompassing heteroatoms such as nitrogen, oxygen, sulfur, and halogens, are of significant importance in medicinal chemistry and pharmaceutical research. In this study, we present a mild, versatile and practical photoredox/iron dual catalytic system that enables access to highly privileged 1,2-aryl(alkenyl) heteroatomic pharmacophores with exceptional efficiency and site selectivity. Our approach exhibits an extensive scope, allowing for the direct utilization of a wide range of commodity or commercially available (hetero)arenes as well as activated and unactivated alkenes with diverse functional groups, drug scaffolds, and natural product motifs as substrates. By merging iron catalysis with the photoredox cycle, a vast array of alkene 1,2-aryl(alkenyl) functionalization products that incorporate a neighboring azido, amino, halo, thiocyano and nitrooxy group were secured. The scalability and ability to rapid synthesize numerous bioactive small molecules from readily available starting materials highlight the utility of this protocol.
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Affiliation(s)
- Weigang Zhang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Tao Liu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Hwee Ting Ang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Penghao Luo
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Zhexuan Lei
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Xiaohua Luo
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Ming Joo Koh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Jie Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
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3
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Hernández-Ruiz R, Gómez-Gil S, Pedrosa MR, Suárez-Pantiga S, Sanz R. Direct synthesis of haloaromatics from nitroarenes via a sequential one-pot Mo-catalyzed reduction/Sandmeyer reaction. Org Biomol Chem 2023; 21:7791-7798. [PMID: 37706648 DOI: 10.1039/d3ob01187a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Herein, we report the direct synthesis of a wide variety of functionalized aromatic bromides, chlorides, iodides, and fluorides from nitroarenes in a sequential one-pot operation. This protocol is based on an air- and moisture-tolerant dioxomolybdenum-catalyzed reduction of nitroaromatics, employing pinacol as a reducing agent, which enables subsequent diazotization and halogenation steps. This methodology represents a step-economical, practical, and alternative procedure for synthesizing haloaromatics directly from nitroaromatics.
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Affiliation(s)
- Raquel Hernández-Ruiz
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| | - Sara Gómez-Gil
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| | - María R Pedrosa
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| | - Samuel Suárez-Pantiga
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
| | - Roberto Sanz
- Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Pza. Misael Bañuelos s/n, 09001 Burgos, Spain.
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4
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Lv X, Liu S, Guo Y, Gao L, Zhao L, Zhang J, Rong L. Meerwein Arylation of Aryl(alkyl)idenemalononitriles and Diazonium Salts for the Synthesis of 2-(Aryl(alkyl)/arylmethylene)malononitrile Derivatives. J Org Chem 2023; 88:12421-12431. [PMID: 37563911 DOI: 10.1021/acs.joc.3c01161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/12/2023]
Abstract
A metal-free Meerwein arylation reaction from aryl(alkyl)idenemalononitriles and diazonium salts for the synthesis of 2-(aryl(alkyl)/arylmethylene)malononitrile derivatives under mild conditions was well developed. Different from the general addition reactions between alkenes and diazonium salts, this study performed the traditional coupling reaction for the formation of C(sp2)-C(sp2) bond arylation products. The radical reaction mechanism was well verified in the control experiments. The other advantages of the approach are broad-scope substrates and good group tolerance. Moreover, the obtained products can be readily converted into high-value asymmetric ketones and hydrogenation reactions.
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Affiliation(s)
- Xiaoqing Lv
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Shengjun Liu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Yu Guo
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Lijiu Gao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Liming Zhao
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
| | - Jinpeng Zhang
- Key Lab of Environment and Health, School of Public Health, Xuzhou Medical University, Xuzhou, 221004 Jiangsu, P. R. China
| | - Liangce Rong
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou, 221116 Jiangsu, P. R. China
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5
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Das R, Kundu T, Basumatary J. Visible light mediated organocatalytic dehydrogenative aza-coupling of 1,3-diones using aryldiazonium salts. RSC Adv 2023; 13:3147-3154. [PMID: 36756411 PMCID: PMC9853514 DOI: 10.1039/d2ra07807d] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/03/2023] [Indexed: 01/21/2023] Open
Abstract
An efficient protocol for diazenylation of 1,3-diones under photoredox conditions is presented herein. C-N bond forming Csp3 -H functionalization of cyclic and alkyl diones by unstable aryl diazenyl radicals is achieved through reaction with aryldiazonium tetrafluoroborates by organocatalysts under visible light irradiation. The reaction has wide substrate scope, gives excellent yields, and is also efficient in water as a green solvent. This method provides an easy access to aryldiazenyl derivatives that are useful key starting materials for the synthesis of aza heterocycles as well as potential pharmacophores.
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Affiliation(s)
- Ramanand Das
- Department of Chemistry, National Institute of Technology Sikkim Ravangla, South Sikkim PIN 737139 India
| | - Taraknath Kundu
- Department of Chemistry, National Institute of Technology Sikkim Ravangla, South Sikkim PIN 737139 India
| | - Joneswar Basumatary
- Department of Chemistry, Sikkim UniversityTadong, Daragaon, East SikkimGangtokPIN 737102India
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6
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Diesendorf N, Wenisch P, Oppl J, Heinrich MR. Visible-Light-Mediated Radical Arylations Using a Fluorescein-Derived Diazonium Salt: Reactions Proceeding via an Intramolecular Forth and Back Electron Transfer. Org Lett 2023; 25:76-81. [PMID: 36595351 DOI: 10.1021/acs.orglett.2c03877] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Functionalizations of arenes and alkenes via additive-free radical reactions using highly photosensitive, fluorescein-derived diazonium salts are described. The particular properties of the diazonium salts enable unique Meerwein-type carbohydroxylations of non-activated alkenes, which can be rationalized by a reaction mechanism involving forth and back electron transfer from and to the xanthene subunit of the fluorescein moiety.
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Affiliation(s)
- Nina Diesendorf
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Pia Wenisch
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Janina Oppl
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Markus R Heinrich
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany
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7
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Transition-metal free C-N bond formation from alkyl iodides and diazonium salts via halogen-atom transfer. Nat Commun 2022; 13:7961. [PMID: 36575172 PMCID: PMC9794826 DOI: 10.1038/s41467-022-35613-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 12/13/2022] [Indexed: 12/28/2022] Open
Abstract
Construction of C-N bond continues to be one part of the most significant goals in organic chemistry because of the universal applications of amines in pharmaceuticals, materials and agrochemicals. However, E2 elimination through classic SN2 substitution of alkyl halides lead to generation of alkenes as major side-products. Thus, formation of a challenging C(sp3)-N bond especially on tertiary carbon center remains highly desirable. Herein, we present a practical alternative to prepare primary, secondary and tertiary alkyl amines with high efficiency between alkyl iodides and easily accessible diazonium salts. This robust transformation only employs Cs2CO3 promoting halogen-atom transfer (XAT) process under transition-metal-free reaction conditions, thus providing a rapid method to assemble diverse C(sp3)-N bonds. Moreover, diazonium salts served as alkyl radical initiator and amination reagent in the reaction. Mechanism studies suggest this reaction undergo through halogen-atom transfer process to generate active alkyl radical which couples with diazonium cations to furnish final products.
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8
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Govaerts S, Nakamura K, Constantin T, Leonori D. A Halogen-Atom Transfer (XAT)-Based Approach to Indole Synthesis Using Aryl Diazonium Salts and Alkyl Iodides. Org Lett 2022; 24:7883-7887. [PMID: 36268790 DOI: 10.1021/acs.orglett.2c02840] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Indoles are among the most important N-heterocycles in pharmaceuticals. Here, we present an alternative to the classic Fischer indole synthesis based on the radical coupling between aryl diazoniums and alkyl iodides. This iron-mediated strategy features a double role for the aryl diazoniums that sequentially activate the alkyl iodides through halogen-atom transfer and then serve as radical acceptors. The process operates under mild conditions and enables the preparation of densely functionalized indoles.
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Affiliation(s)
- Sebastian Govaerts
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Kento Nakamura
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Timothée Constantin
- Department of Chemistry, University of Manchester, Oxford Road, Manchester M13 9PL, U.K
| | - Daniele Leonori
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, Aachen 52056, Germany
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9
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Cheng XY, Zhang YF, Wang JH, Gu QS, Li ZL, Liu XY. A Counterion/Ligand-Tuned Chemo- and Enantioselective Copper-Catalyzed Intermolecular Radical 1,2-Carboamination of Alkenes. J Am Chem Soc 2022; 144:18081-18089. [PMID: 36153984 DOI: 10.1021/jacs.2c08035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The copper-catalyzed enantioselective intermolecular radical 1,2-carboamination of alkenes with readily accessible alkyl halides is an appealing strategy for producing chiral amine scaffolds. The challenge arises from the easily occurring atom transfer radical addition between alkyl halides and alkenes and the issue of enantiocontrol. We herein describe a radical alkene 1,2-carboamination with sulfoximines in a highly chemo- and enantioselective manner. The key to the success of this process is the conceptual design of a counterion/highly sterically demanded ligand coeffect to promote the ligand exchange of copper(I) with sulfoximines and forge chiral C-N bonds between alkyl radicals and the chiral copper(II) complex. The reaction covers alkenes bearing distinct electronic properties, such as aryl-, heteroaryl-, carbonyl-, and aminocarbonyl-substituted ones, and various radical precursors, including alkyl chlorides, bromides, iodides, and the CF3 source. Facile transformations deliver many chiral amine building blocks of interest in organic synthesis and related areas.
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Affiliation(s)
- Xian-Yan Cheng
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yu-Feng Zhang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jia-Huan Wang
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qiang-Shuai Gu
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhong-Liang Li
- Academy for Advanced Interdisciplinary Studies and Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xin-Yuan Liu
- Shenzhen Grubbs Institute and Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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10
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Zhang J, Chen J, Zhai Y, Yu J, Pan C. Three‐Component Vicinal Sulfonamination of Alkynes toward 3‐Sulfonylindoles via the Insertion of Sulfur Dioxide. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jie Zhang
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University Changzhou 213164 P. R. China
| | - Jian Chen
- Jiangsu LtestingTechnology Co., Ltd. Wuxi 214142 P. R. China
| | - Yongheng Zhai
- Jiangsu LtestingTechnology Co., Ltd. Wuxi 214142 P. R. China
| | - Jin‐Tao Yu
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University Changzhou 213164 P. R. China
| | - Changduo Pan
- School of Petrochemical Engineering Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology Changzhou University Changzhou 213164 P. R. China
- School of Chemical and Environmental Engineering Jiangsu University of Technology Changzhou 213001 P. R. China
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11
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Bary G, Jamil MI, Arslan M, Ghani L, Ahmed W, Ahmad H, Zaman G, Ayub K, Sajid M, Ahmad R, Huang D, Liu F, Wang Y. Regio- and stereoselective functionalization of alkenes with emphasis on mechanistic insight and sustainability concerns. JOURNAL OF SAUDI CHEMICAL SOCIETY 2021. [DOI: 10.1016/j.jscs.2021.101260] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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12
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Tang HJ, Zhang B, Xue F, Feng C. Visible-Light-Induced Meerwein Fluoroarylation of Styrenes. Org Lett 2021; 23:4040-4044. [PMID: 33949871 DOI: 10.1021/acs.orglett.1c01249] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An unprecedented approach for assembling a broad range of 1,2-diarylethane derivatives with fluorine-containing fully substituted carbon centers was developed. The protocol features straightforward operation, proceeds under metal-free condition, and accommodates a large variety of synthetically useful functionalities. The critical aspect to the success of this novel transformation lies in using aryldiazonium salts as both aryl radical progenitor and also as single electron acceptor which elegantly enables a radical-polar crossover manifold.
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Affiliation(s)
- Hai-Jun Tang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Bin Zhang
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
| | - Fei Xue
- Institute of Material Physics & Chemistry, College of Science, Nanjing Forestry University, Nanjing 210037, China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing 211816, P. R. China
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13
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Mo F, Qiu D, Zhang L, Wang J. Recent Development of Aryl Diazonium Chemistry for the Derivatization of Aromatic Compounds. Chem Rev 2021; 121:5741-5829. [DOI: 10.1021/acs.chemrev.0c01030] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Fanyang Mo
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China
- School of Materials Science and Engineering, Peking University, Beijing 100871, China
| | - Di Qiu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, College of Chemistry, Tianjin Normal University, Tianjin 300387, China
| | - Lei Zhang
- Department of Energy and Resources Engineering, College of Engineering, Peking University, Beijing 100871, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
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14
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Shen J, Xu J, Zhu Q, Zhang P. Hypervalent iodine(iii)-promoted rapid cascade reaction for the synthesis of unsymmetric azo compounds. Org Biomol Chem 2021; 19:3119-3123. [PMID: 33885564 DOI: 10.1039/d1ob00219h] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A rapid three-component cascade reaction for the synthesis of unsymmetric azo compounds via a radical activation strategy has been reported. Various aryldiazonium salts and unactivated alkenes are well compatible, providing the corresponding products in good to excellent yields. This strategy gives an efficient and practical solution for the synthesis of unsymmetric azo compounds with two C-N bond formation. A free radical pathway mechanism is advised for this transformation.
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Affiliation(s)
- Jiabin Shen
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou, China.
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15
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Shen J, Xu J, He L, Ouyang Y, Huang L, Li W, Zhu Q, Zhang P. Photoinduced Rapid Multicomponent Cascade Reaction of Aryldiazonium Salts with Unactivated Alkenes and TMSN3. Org Lett 2021; 23:1204-1208. [DOI: 10.1021/acs.orglett.0c04148] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jiabin Shen
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 311121, China
| | - Jun Xu
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Lei He
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Yani Ouyang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Lin Huang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Wanmei Li
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
| | - Qing Zhu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 311121, China
| | - Pengfei Zhang
- College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 311121, China
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16
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Altmann L, Zantop V, Wenisch P, Diesendorf N, Heinrich MR. Visible Light Promoted, Catalyst-Free Radical Carbohydroxylation and Carboetherification under Mild Biomimetic Conditions. Chemistry 2021; 27:2452-2462. [PMID: 33006177 PMCID: PMC7898656 DOI: 10.1002/chem.202004234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Indexed: 11/25/2022]
Abstract
Metal and catalyst-free carbohydroxylations and carboetherifications at room temperature have been achieved by a combination of beneficial factors including high aryl diazonium concentration and visible light irradiation. The acceleration of the reaction by visible light irradiation is particularly remarkable against the background that neither the aryldiazonium salt nor the alkene show absorptions in the respective range of wavelength. These observations point to weak charge transfer interactions between diazonium salt and alkene, which are nevertheless able to considerably influence the reaction course. As highly promising perspective, many more aryldiazonium-based radical arylations might benefit from simple light irradiation without requiring a photocatalyst or particular additive.
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Affiliation(s)
- Lisa‐Marie Altmann
- Department of Chemistry and Pharmacy, Pharmaceutical ChemistryFriedrich-Alexander-Universität Erlangen-NürnbergNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Viviane Zantop
- Department of Chemistry and Pharmacy, Pharmaceutical ChemistryFriedrich-Alexander-Universität Erlangen-NürnbergNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Pia Wenisch
- Department of Chemistry and Pharmacy, Pharmaceutical ChemistryFriedrich-Alexander-Universität Erlangen-NürnbergNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Nina Diesendorf
- Department of Chemistry and Pharmacy, Pharmaceutical ChemistryFriedrich-Alexander-Universität Erlangen-NürnbergNikolaus-Fiebiger-Str. 1091058ErlangenGermany
| | - Markus R. Heinrich
- Department of Chemistry and Pharmacy, Pharmaceutical ChemistryFriedrich-Alexander-Universität Erlangen-NürnbergNikolaus-Fiebiger-Str. 1091058ErlangenGermany
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17
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Tao M, Li W, Zhang J. Pd/Xiang-Phos-catalyzed enantioselective intermolecular carboheterofunctionalization of norbornene and norbornadiene. Chem Commun (Camb) 2020; 56:13125-13128. [PMID: 33005910 DOI: 10.1039/d0cc04996d] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A highly enantioselective Pd/Xiang-Phos-catalyzed carbohetero-functionalization of norbornene is described, giving a direct access to various chiral norbornane-fused dihydrofurans and dihydro-pyrroles. This synthetic methodology provides the first example of asymmetric carboetherification of norbornene, and also tolerates norbornadiene well.
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Affiliation(s)
- Mengna Tao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 N. Zhongshan Road, Shanghai 200062, P. R. China.
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18
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Ahmed W, Zhang S, Feng X, Yu X, Yamamoto Y, Bao M. Cooperative Catalysis of Copper, Silver, and Brønsted Acid for Three‐Component Carboamination of Arylalkenes with Allylic Alcohols and Nitriles. ChemCatChem 2020. [DOI: 10.1002/cctc.202000842] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Waqar Ahmed
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116023 P. R. China
| | - Sheng Zhang
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116023 P. R. China
| | - Xiujuan Feng
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116023 P. R. China
| | - Xiaoqiang Yu
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116023 P. R. China
| | - Yoshinori Yamamoto
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116023 P. R. China
- Research Organization of Science and Technology Ritsumeikan University Kusatsu, Shiga 525-8577 Japan
| | - Ming Bao
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116023 P. R. China
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19
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Cardinale L, Neumeier M, Majek M, Jacobi von Wangelin A. Aryl Pyrazoles from Photocatalytic Cycloadditions of Arenediazonium. Org Lett 2020; 22:7219-7224. [DOI: 10.1021/acs.orglett.0c02514] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Luana Cardinale
- Department of Chemistry, University of Hamburg, Martin Luther King Pl 6, 20146 Hamburg, Germany
| | - Michael Neumeier
- Department of Chemistry, University of Hamburg, Martin Luther King Pl 6, 20146 Hamburg, Germany
| | - Michal Majek
- Department of Organic Chemistry, Comenius University, Mlynská dolina, Ilkovičova 6, 84215 Bratislava, Slovakia
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20
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Tao M, Tu Y, Liu Y, Wu H, Liu L, Zhang J. Pd/Xiang-Phos-catalyzed enantioselective intermolecular carboheterofunctionalization under mild conditions. Chem Sci 2020; 11:6283-6288. [PMID: 32953024 PMCID: PMC7473404 DOI: 10.1039/d0sc01391a] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2020] [Accepted: 05/29/2020] [Indexed: 01/01/2023] Open
Abstract
A mild and practical Pd/Xiang-Phos-catalyzed enantioselective intermolecular carboheterofunctionalization reaction of 2,3-dihydrofurans is developed, leading to various optically active fused furoindolines and tetrahydrofurobenzofurans. The key to this transformation is employing two newly modified N-Me-Xiang-Phos ligands ((S, R S)- N-Me-X4/X5) as chiral ligands under mild conditions. Moreover, this synthetic methodology can be efficiently applied to a variety of complex polysubstituted heterocycles with high chemo-, regio-, and enantio-selectivities via introducing diverse substituents on furan rings, which were hard to access by other routes.
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Affiliation(s)
- Mengna Tao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , P. R. China .
| | - Youshao Tu
- College of Chemistry and Life Science , Advanced Institute of Materials Science , Changchun University of Technology , 2055 Yanan Street , Changchun , 130012 , P. R. China
| | - Yu Liu
- College of Chemistry and Life Science , Advanced Institute of Materials Science , Changchun University of Technology , 2055 Yanan Street , Changchun , 130012 , P. R. China
| | - Haihong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , P. R. China .
| | - Lu Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes , School of Chemistry and Molecular Engineering , East China Normal University , 3663 N. Zhongshan Road , Shanghai 200062 , P. R. China .
| | - Junliang Zhang
- Department of Chemistry , Fudan University , 2005 Songhu Road , Shanghai 200438 , P. R. China .
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , CAS , 345 Lingling Road , Shanghai 200032 , P. R. China
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21
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Lu Z, Hennis O, Gentry J, Xu B, Hammond GB. Base-Promoted Radical Azofluoromethylation of Unactivated Alkenes. Org Lett 2020; 22:4383-4388. [PMID: 32400165 DOI: 10.1021/acs.orglett.0c01395] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The base-induced reaction of aryl diazonium salts with commercially available CF3SO2Na/CF2HSO2Na allows for the generation of the corresponding diazene radicals along with fluoromethyl radicals. The addition of fluoromethyl radicals to alkenes with subsequent diazene trapping provides the azofluoromethylation products in good to excellent yields. This metal-free method under mild reaction conditions has broad functional group compatibility and is applicable in the late-stage modification of various natural products and bioactive molecules.
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Affiliation(s)
- Zhichao Lu
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Olivia Hennis
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Joseph Gentry
- Williams College, Williamstown, Massachusetts 01267, United States
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
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22
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Angnes RA, Potnis C, Liang S, Correia CRD, Hammond GB. Photoredox-Catalyzed Synthesis of Alkylaryldiazenes: Formal Deformylative C-N Bond Formation with Alkyl Radicals. J Org Chem 2020; 85:4153-4164. [PMID: 32056435 DOI: 10.1021/acs.joc.9b03341] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Diazenes are valuable compounds that have found broad applicability because of their optical and biological properties. We report the synthesis of alkylaryldiazenes via formal, photoredox-catalyzed, deformylative C-N bond formation. The procedure employs dihydropyridines for the generation of alkyl radicals, which are then trapped by diazonium salts and reduced to the corresponding diazenes. Control experiments were performed to confirm the involvement of radicals in the mechanism. The reaction can be carried out at room temperature and employs readily available reagents; the mild conditions allowed the use of highly functionalized substrates. There was no observed tautomerization of the diazenes to the corresponding arylhydrazones.
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Affiliation(s)
- Ricardo A Angnes
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States.,Chemistry Institute, University of Campinas, C.P. 6154, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Chinmay Potnis
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Shengzong Liang
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
| | - Carlos Roque D Correia
- Chemistry Institute, University of Campinas, C.P. 6154, CEP 13083-970 Campinas, São Paulo, Brazil
| | - Gerald B Hammond
- Department of Chemistry, University of Louisville, Louisville, Kentucky 40292, United States
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23
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Abstract
Vicinal alkene carboamination is a highly efficient and practical synthetic strategy for the straightforward preparation of diverse and valuable amine derivatives starting from simple compounds. During the last decade that approach has found continuous research interests and various practical methods have been developed using transition-metal catalysis. Driven by the renaissance of synthetic radical chemistry, intermolecular radical alkene carboamination comprising a C-C bond and a C-N bond forming step has been intensively investigated recently culminating in novel strategies and improved protocols which complement existing methodologies. Radical alkene carboamination can be achieved via three different reaction modes. Such cascades can proceed through N-radical addition to an alkene with subsequent C-C bond formation leading to 2,1-carboamination products. Alternatively, the C-C bond can be installed prior to the C-N bond via initial C-radical addition to the alkene with subsequent β-amination resulting in 1,2-carboamination. The third mode comprises initial single electron oxidation of the alkene to the corresponding alkene radical cation that gets trapped by an N-nucleophile and the cascade is terminated by radical C-C bond formation. In this review, the three different conceptual approaches will be discussed and examples from the recent literature will be presented. Further, the reader will get insights into the mechanism of the different transformations.
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Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraße 40, 48149 Münster, Germany.
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24
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Altmann LM, Fürst MCD, Gans EI, Zantop V, Pratsch G, Heinrich MR. Aryl Radical Selectivity in Biphasic Systems. Org Lett 2020; 22:479-482. [PMID: 31904970 DOI: 10.1021/acs.orglett.9b04237] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Aryl radicals generated in the aqueous phase of biphasic mixtures have-regardless of a comparably low polarity- a strong preference to react with aromatic substrates in the aqueous phase and not to undergo phase-transfer into a lipophilic phase, independent from the presence of a surfactant. These results represent an important prerequisite toward future studies in biological systems, which typically consist of various compartments of either hydrophilic or lipophilic character.
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Affiliation(s)
- Lisa-Marie Altmann
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
| | - Michael C D Fürst
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
| | - Eva I Gans
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
| | - Viviane Zantop
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
| | - Gerald Pratsch
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
| | - Markus R Heinrich
- Department of Chemistry and Pharmacy, Pharmaceutical Chemistry , Friedrich-Alexander-Universität Erlangen-Nürnberg , Nikolaus-Fiebiger-Strasse 10 , 91058 Erlangen , Germany
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25
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Abdelwahab AB, El-Sawy ER, Kirsch G. Iron powder and tin/tin chloride as new reducing agents of Meerwein arylation reaction with unexpected recycling to anilines. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1704786] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Ahmed B. Abdelwahab
- Laboratoire Lorrain de Chimie Moléculaire (L.2.C.M.), Université de Lorraine, Metz, France
- Chemistry of Natural Compounds Department, National Research Centre, Dokki-Cairo, Egypt
- Plant Advanced Technologies (PAT), Vandoeuvre-lès-Nancy, France
| | - Eslam R. El-Sawy
- Laboratoire Lorrain de Chimie Moléculaire (L.2.C.M.), Université de Lorraine, Metz, France
- Chemistry of Natural Compounds Department, National Research Centre, Dokki-Cairo, Egypt
| | - Gilbert Kirsch
- Laboratoire Lorrain de Chimie Moléculaire (L.2.C.M.), Université de Lorraine, Metz, France
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26
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Wang M, Tang BC, Xiang JC, Chen XL, Ma JT, Wu YD, Wu AX. Aryldiazonium Salts Serve as a Dual Synthon: Construction of Fully Substituted Pyrazoles via Rongalite-Mediated Three-Component Radical Annulation Reaction. Org Lett 2019; 21:8934-8937. [DOI: 10.1021/acs.orglett.9b03212] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Miao Wang
- College of Chemistry and Chemical Engineering, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471022, P. R. China
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei Wuhan 430079, P. R. China
| | - Bo-Cheng Tang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei Wuhan 430079, P. R. China
| | - Jia-Chen Xiang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei Wuhan 430079, P. R. China
| | - Xiang-Long Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei Wuhan 430079, P. R. China
| | - Jin-Tian Ma
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei Wuhan 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Hubei Wuhan 430079, P. R. China
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27
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Yu XY, Xiao WJ, Chen JR. Synthesis of Trisubstituted 1,2,4-Triazoles from Azlactones and Aryldiazonium Salts by a Cycloaddition/Decarboxylation Cascade. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901467] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xiao-Ye Yu
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology; Ministry of Education, College of Chemistry; Central China Normal University; 152 Luoyu Road 430079 Wuhan Hubei China
| | - Wen-Jing Xiao
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology; Ministry of Education, College of Chemistry; Central China Normal University; 152 Luoyu Road 430079 Wuhan Hubei China
| | - Jia-Rong Chen
- CCNU-uOttawa Joint Research Centre, Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, Key Laboratory of Pesticides & Chemical Biology; Ministry of Education, College of Chemistry; Central China Normal University; 152 Luoyu Road 430079 Wuhan Hubei China
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28
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Yang L, Li H, Du Y, Cheng K, Qi C. Visible Light‐Catalyzed Decarboxylative Alkynylation of Arenediazonium Salts with Alkynyl Carboxylic Acids: Direct Access to Aryl Alkynes by Organic Photoredox Catalysis. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900603] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Liangfeng Yang
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals ProcessShaoxing University 312000 Shaoxing People's Republic of China
| | - Haifeng Li
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals ProcessShaoxing University 312000 Shaoxing People's Republic of China
| | - Yijun Du
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals ProcessShaoxing University 312000 Shaoxing People's Republic of China
| | - Kai Cheng
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals ProcessShaoxing University 312000 Shaoxing People's Republic of China
| | - Chenze Qi
- Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals ProcessShaoxing University 312000 Shaoxing People's Republic of China
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29
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Jimoh AA, Hosseyni S, Ye X, Wojtas L, Hu Y, Shi X. Gold redox catalysis for cyclization/arylation of allylic oximes: synthesis of isoxazoline derivatives. Chem Commun (Camb) 2019; 55:8150-8153. [PMID: 31241086 PMCID: PMC6641983 DOI: 10.1039/c9cc02830g] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Base-assisted diazonium activation has been employed to promote gold(i)/(iii) redox catalysis toward allylic oxime cyclization/aryl coupling. Functional isoxazolines were prepared with good to excellent yields, while the alternative photoactivation method provided trace amounts of the isoxazoline products. This study further broadens the scope of gold redox chemistry.
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Affiliation(s)
- Abiola Azeez Jimoh
- Department of Chemistry, University of South Florida, Tampa, FL 33620, USA.
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30
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Kurandina D, Yadagiri D, Rivas M, Kavun A, Chuentragool P, Hayama K, Gevorgyan V. Transition-Metal- and Light-Free Directed Amination of Remote Unactivated C(sp 3)-H Bonds of Alcohols. J Am Chem Soc 2019; 141:8104-8109. [PMID: 31046256 PMCID: PMC6873700 DOI: 10.1021/jacs.9b04189] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Due to the great value of amino alcohols, new methods for their synthesis are in high demand. Abundant aliphatic alcohols represent the ideal feedstock for the method development toward this important motif. To date, transition-metal-catalyzed approaches for the directed remote amination of alcohols have been well established. Yet, they have certain disadvantages such as the use of expensive catalysts and limited scope. Very recently, transition-metal-free visible-light-induced radical approaches have emerged as new powerful tools for directed remote amination of alcohols. Relying on 1,5-HAT reactivity, these methods are limited to β - or δ-amination only. Herein, we report a novel transition-metal- and visible-light-free room-temperature radical approach for remote β -, γ-, and δ-C(sp3)-N bond formation in aliphatic alcohols using mild basic conditions and readily available diazonium salt reagents.
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Affiliation(s)
| | | | | | - Aleksei Kavun
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Rm. 4500, Chicago, Illinois 60607, United States
| | - Padon Chuentragool
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Rm. 4500, Chicago, Illinois 60607, United States
| | - Keiichi Hayama
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Rm. 4500, Chicago, Illinois 60607, United States
| | - Vladimir Gevorgyan
- Department of Chemistry, University of Illinois at Chicago, 845 W. Taylor Street, Rm. 4500, Chicago, Illinois 60607, United States
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31
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Zhang Y, Huang C, Lin X, Hu Q, Hu B, Zhou Y, Zhu G. Modular Synthesis of Alkylarylazo Compounds via Iron(III)-Catalyzed Olefin Hydroamination. Org Lett 2019; 21:2261-2264. [PMID: 30869900 DOI: 10.1021/acs.orglett.9b00540] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel Fe-catalyzed olefin hydroamination with aryldiazo sulfones for accessing alkylarylazo compounds has been successfully developed. Aryldiazo sulfones are used as radical acceptors, and N-N double bonds will be regenerated when an arene sulfonyl group leaves. The reaction features mild reaction conditions and a broad substrate scope, allowing access to many azo compounds that would be difficult or perhaps impossible to access using other methods.
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Affiliation(s)
- Yan Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials , Zhejiang Normal University , 688 Yingbin Road , Jinhua 321004 , China
| | - Chenchao Huang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials , Zhejiang Normal University , 688 Yingbin Road , Jinhua 321004 , China
| | - Xinru Lin
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials , Zhejiang Normal University , 688 Yingbin Road , Jinhua 321004 , China
| | - Qi Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials , Zhejiang Normal University , 688 Yingbin Road , Jinhua 321004 , China
| | - Boyue Hu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials , Zhejiang Normal University , 688 Yingbin Road , Jinhua 321004 , China
| | - Yulu Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials , Zhejiang Normal University , 688 Yingbin Road , Jinhua 321004 , China
| | - Gangguo Zhu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials , Zhejiang Normal University , 688 Yingbin Road , Jinhua 321004 , China
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32
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Zhang L, Kong X, Liu S, Zhao Z, Yu Q, Wang W, Wang Y. Succinimide-Promoted Malonylamination of Alkenes with Amines and Iodonium Ylides via Trapping of Transient Aminium Radical Cations. Org Lett 2019; 21:2923-2926. [DOI: 10.1021/acs.orglett.9b00983] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Liang Zhang
- School of Chemistry and Chemical Engineering, Key Laboratory of the Colloid and Interface Chemistry, Shandong University, Jinan 250100, China
| | - Xiangjin Kong
- School of Chemistry and Chemical Engineering, Key Laboratory of the Colloid and Interface Chemistry, Shandong University, Jinan 250100, China
| | - Shuya Liu
- School of Chemistry and Chemical Engineering, Key Laboratory of the Colloid and Interface Chemistry, Shandong University, Jinan 250100, China
| | - Zhiguo Zhao
- School of Chemistry and Chemical Engineering, Key Laboratory of the Colloid and Interface Chemistry, Shandong University, Jinan 250100, China
| | - Qun Yu
- School of Chemistry and Chemical Engineering, Key Laboratory of the Colloid and Interface Chemistry, Shandong University, Jinan 250100, China
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of the Colloid and Interface Chemistry, Shandong University, Jinan 250100, China
| | - Yao Wang
- School of Chemistry and Chemical Engineering, Key Laboratory of the Colloid and Interface Chemistry, Shandong University, Jinan 250100, China
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33
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Xu R, Cai C. Three-component difluoroalkylamination of alkenes mediated by photoredox and iron cooperative catalysis. Org Biomol Chem 2019; 17:8541-8545. [DOI: 10.1039/c9ob01815h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A new three-component difluoroalkylamination of alkenes mediated by photoredox and iron cooperative catalysis has been developed with a broad substrate scope.
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Affiliation(s)
- Rui Xu
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
| | - Chun Cai
- Chemical Engineering College
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
- Key Laboratory of Organofluorine Chemistry
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34
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Jiang H, Studer A. Transition-Metal-Free Three-Component Radical 1,2-Amidoalkynylation of Unactivated Alkenes. Chemistry 2018; 25:516-520. [PMID: 30403422 DOI: 10.1002/chem.201805490] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Indexed: 11/10/2022]
Abstract
A transition-metal-free radical 1,2-amidoalkynylation of unactivated alkenes is presented. α-Amido-oxy acids were used as amidyl radical precursors, which were oxidized by an organic photoredox catalyst (4CzlPN). The electrophilic N-radicals chemoselectively reacted with various aliphatic alkenes and the adduct radicals were then trapped by ethynylbenziodoxolone (EBX) reagents to eventually provide the amidoalkynylation products. These transformations, which were conducted under practical and mild conditions, showed high functional group tolerance and broad substrate scope. Mechanistic studies supported the radical nature of these cascades.
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Affiliation(s)
- Heng Jiang
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraß 40, 48149, Münster, Germany
| | - Armido Studer
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität, Corrensstraß 40, 48149, Münster, Germany
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35
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Abrams R, Lefebvre Q, Clayden J. Transition Metal Free Cycloamination of Prenyl Carbamates and Ureas Promoted by Aryldiazonium Salts. Angew Chem Int Ed Engl 2018; 57:13587-13591. [DOI: 10.1002/anie.201809323] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Indexed: 12/19/2022]
Affiliation(s)
- Roman Abrams
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Quentin Lefebvre
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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36
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Abrams R, Lefebvre Q, Clayden J. Transition Metal Free Cycloamination of Prenyl Carbamates and Ureas Promoted by Aryldiazonium Salts. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Roman Abrams
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Quentin Lefebvre
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
| | - Jonathan Clayden
- School of Chemistry; University of Bristol; Cantock's Close Bristol BS8 1TS UK
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37
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38
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Li H, Wu X, Hao W, Li H, Zhao Y, Wang Y, Lian P, Zheng Y, Bao X, Wan X. [3 + 2] Cycloaddition of Nitrile Ylides with Diazonium Salts: Copper-Catalyzed One-Pot Synthesis of Fully Substituted 1,2,4-Triazoles. Org Lett 2018; 20:5224-5227. [PMID: 30146886 DOI: 10.1021/acs.orglett.8b02172] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A novel [3 + 2] cycloaddition between nitrile ylides and diazonium salts was well-established. This copper-catalyzed three-component reaction was distinguished by mild conditions, ready availability, and operational simplicity, thus opening access to 1,2,4-triazoles with a diverse set of substitution patterns.
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Affiliation(s)
- Huihuang Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Xueli Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Weiwei Hao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Haiyan Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Yanwei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Yaxiong Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Pengcheng Lian
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Yonggao Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science , Soochow University , Suzhou 215123 , People's Republic of China
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39
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Wang DJ, Chen BY, Wang YQ, Zhang XW. Ruthenium-Catalyzed Direct Transformation of Alkenyl Oximes to 5-Cyanated Isoxazolines: A Cascade Approach Based on Non-Stabilized Radical Intermediate. European J Org Chem 2018. [DOI: 10.1002/ejoc.201701651] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Dan-Jun Wang
- National Engineering Research Center for Carbohydrate Synthesis; Jiangxi Normal University; 330022 Nanchang China
| | - Bei-Yi Chen
- National Engineering Research Center for Carbohydrate Synthesis; Jiangxi Normal University; 330022 Nanchang China
| | - Yi-Qi Wang
- National Engineering Research Center for Carbohydrate Synthesis; Jiangxi Normal University; 330022 Nanchang China
| | - Xiao-Wei Zhang
- National Engineering Research Center for Carbohydrate Synthesis; Jiangxi Normal University; 330022 Nanchang China
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40
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Naveen N, Sengupta S, Chandrasekaran S. Metal-Free S-Arylation of Cysteine Using Arenediazonium Salts. J Org Chem 2018; 83:3562-3569. [DOI: 10.1021/acs.joc.7b03160] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Naganaboina Naveen
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, Karnataka India 560012
| | - Saumitra Sengupta
- Department of Organic Chemistry, Indian Institute of Science, Bangalore, Karnataka India 560012
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41
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Abstract
Copper-catalyzed intermolecular carboamination of alkenes with α-halocarbonyls and amines is presented with 42 examples. Electron rich, electron poor, and internal styrenes, as well as α-olefins, are functionalized with α-halocarbonyls and aryl or aliphatic amines. Mechanistic investigations suggest the reaction is proceeding through addition of a carbon-centered radical across an olefin followed by oxidation to form a 5-membered oxocarbenium intermediate and subsequent nucleophilic ring opening to forge the C-N bond.
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Affiliation(s)
- Samuel N Gockel
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Travis L Buchanan
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Kami L Hull
- Department of Chemistry, University of Illinois at Urbana-Champaign , 600 South Mathews Avenue, Urbana, Illinois 61801, United States
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42
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Monzón DM, Santos T, Pinacho-Crisóstomo F, Martín VS, Carrillo R. Mild-Base-Promoted Arylation of (Hetero)Arenes with Anilines. Chem Asian J 2018; 13:325-333. [DOI: 10.1002/asia.201701585] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/19/2017] [Indexed: 01/14/2023]
Affiliation(s)
- Diego M. Monzón
- Departamento de Química Orgánica; Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO); Universidad de La Laguna; Avda. Astrofísico Fco. Sánchez 2, Apdo. Correos 456 38200- La Laguna S/C. de Tenerife Spain
| | - Tanausú Santos
- Departamento de Química Orgánica; Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO); Universidad de La Laguna; Avda. Astrofísico Fco. Sánchez 2, Apdo. Correos 456 38200- La Laguna S/C. de Tenerife Spain
| | - F. Pinacho-Crisóstomo
- Departamento de Química Orgánica; Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO); Universidad de La Laguna; Avda. Astrofísico Fco. Sánchez 2, Apdo. Correos 456 38200- La Laguna S/C. de Tenerife Spain
| | - Víctor S. Martín
- Departamento de Química Orgánica; Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO); Universidad de La Laguna; Avda. Astrofísico Fco. Sánchez 2, Apdo. Correos 456 38200- La Laguna S/C. de Tenerife Spain
| | - Romen Carrillo
- Departamento de Química Orgánica; Instituto Universitario de Bio-Orgánica “Antonio González” (IUBO); Universidad de La Laguna; Avda. Astrofísico Fco. Sánchez 2, Apdo. Correos 456 38200- La Laguna S/C. de Tenerife Spain
- Instituto de Productos Naturales y Agrobiología; Consejo Superior de Investigaciones Científicas (IPNA-CSIC); Avda. Astrofísico Fco. Sánchez 3 38206- La Laguna S/C. de Tenerife Spain
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43
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Carrillo-Arcos UA, Porcel S. Gold promoted arylative cyclization of alkynoic acids with arenediazonium salts. Org Biomol Chem 2018; 16:1837-1842. [DOI: 10.1039/c7ob02447a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Arylgold(iii) species generated from arenediazonium salts and Au(i) under thermal conditions promote the arylative cyclization of alkynoic acids leading to tetrasubstituted lactones.
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Affiliation(s)
| | - Susana Porcel
- Instituto de Química
- Universidad Nacional Autónoma de México
- 04510 México D.F
- Mexico
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44
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Ouyang XH, Cheng J, Li JH. 1,2-Diarylation of alkenes with aryldiazonium salts and arenes enabled by visible light photoredox catalysis. Chem Commun (Camb) 2018; 54:8745-8748. [DOI: 10.1039/c8cc04526g] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Visible light-driven three-component alkene 1,2-diarylation with aryldiazonium salts and arenes involving aryl C(sp2)–H functionalization is described.
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Affiliation(s)
- Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jiang Cheng
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- Changzhou University
- Changzhou 213164
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Applied Organic Chemistry
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45
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Koziakov D, Wu G, Jacobi von Wangelin A. Aromatic substitutions of arenediazonium salts via metal catalysis, single electron transfer, and weak base mediation. Org Biomol Chem 2018; 16:4942-4953. [DOI: 10.1039/c8ob00591e] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Radical aromatic substitutions of arenediazonium salts can be initiated by various methods. The recent developments of weak base-mediated protocols provide great advantages over conventional metal-mediated or photoredox reactions by their operational simplicity, price, hazard potential and scalability.
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Affiliation(s)
- Denis Koziakov
- Institute of Organic Chemistry
- University of Regensburg
- Germany
| | - Guojiao Wu
- Dept. of Chemistry
- University of Hamburg
- 20146 Hamburg
- Germany
| | - Axel Jacobi von Wangelin
- Institute of Organic Chemistry
- University of Regensburg
- Germany
- Dept. of Chemistry
- University of Hamburg
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46
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Youn SW, Yoo HJ, Lee EM, Lee SY. Metal-Free One-Pot Synthesis of (Tetrahydro)Quinolines through Three-Component Assembly of Arenediazonium Salts, Nitriles, and Styrenes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701451] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Material Design; Hanyang University; Seoul 04763 Korea
| | - Huen Ji Yoo
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Material Design; Hanyang University; Seoul 04763 Korea
| | - Eun Mi Lee
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Material Design; Hanyang University; Seoul 04763 Korea
| | - Seo Young Lee
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Material Design; Hanyang University; Seoul 04763 Korea
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47
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Qian B, Chen S, Wang T, Zhang X, Bao H. Iron-Catalyzed Carboamination of Olefins: Synthesis of Amines and Disubstituted β-Amino Acids. J Am Chem Soc 2017; 139:13076-13082. [PMID: 28857555 DOI: 10.1021/jacs.7b06590] [Citation(s) in RCA: 119] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bo Qian
- State
Key Laboratory of Structural Chemistry, Key Laboratory of Coal to
Ethylene Glycol and Its Related Technology, Fujian Institute of Research
on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
| | - Shaowei Chen
- State
Key Laboratory of Structural Chemistry, Key Laboratory of Coal to
Ethylene Glycol and Its Related Technology, Fujian Institute of Research
on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
| | - Ting Wang
- Lab
of Computational Chemistry and Drug Design, Key Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, People’s Republic of China
| | - Xinhao Zhang
- Lab
of Computational Chemistry and Drug Design, Key Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, People’s Republic of China
| | - Hongli Bao
- State
Key Laboratory of Structural Chemistry, Key Laboratory of Coal to
Ethylene Glycol and Its Related Technology, Fujian Institute of Research
on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
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48
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Zhu N, Wang T, Ge L, Li Y, Zhang X, Bao H. γ-Amino Butyric Acid (GABA) Synthesis Enabled by Copper-Catalyzed Carboamination of Alkenes. Org Lett 2017; 19:4718-4721. [PMID: 28862865 DOI: 10.1021/acs.orglett.7b01969] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nengbo Zhu
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
State Key Laboratory of Structural Chemistry, Fujian Institute of
Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
| | - Ting Wang
- Lab
of Computational Chemistry and Drug Design, Key Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, People’s Republic of China
| | - Liang Ge
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
State Key Laboratory of Structural Chemistry, Fujian Institute of
Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
| | - Yajun Li
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
State Key Laboratory of Structural Chemistry, Fujian Institute of
Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
| | - Xinhao Zhang
- Lab
of Computational Chemistry and Drug Design, Key Laboratory of Chemical
Genomics, Peking University Shenzhen Graduate School, Shenzhen 518055, People’s Republic of China
| | - Hongli Bao
- Key
Laboratory of Coal to Ethylene Glycol and Its Related Technology,
State Key Laboratory of Structural Chemistry, Fujian Institute of
Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou, Fujian 350002, People’s Republic of China
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49
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Dong B, Peng H, Motika SE, Shi X. Gold Redox Catalysis through Base-Initiated Diazonium Decomposition toward Alkene, Alkyne, and Allene Activation. Chemistry 2017; 23:11093-11099. [PMID: 28603854 PMCID: PMC5671776 DOI: 10.1002/chem.201701970] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Indexed: 12/28/2022]
Abstract
The discovery of photoassisted diazonium activation toward gold(I) oxidation greatly extended the scope of gold redox catalysis by avoiding the use of a strong oxidant. Some practical issues that limit the application of this new type of chemistry are the relative low efficiency (long reaction time and low conversion) and the strict reaction condition control that is necessary (degassing and inert reaction environment). Herein, an alternative photofree condition has been developed through Lewis base induced diazonium activation. With this method, an unreactive AuI catalyst was used in combination with Na2 CO3 and diazonium salts to produce a AuIII intermediate. The efficient activation of various substrates, including alkyne, alkene and allene was achieved, followed by rapid AuIII reductive elimination, which yielded the C-C coupling products with good to excellent yields. Relative to the previously reported photoactivation method, our approach offered greater efficiency and versatility through faster reaction rates and broader reaction scope. Challenging substrates such as electron rich/neutral allenes, which could not be activated under the photoinitiation conditions (<5 % yield), could be activated to subsequently yield the desired coupling products in good to excellent yield.
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Affiliation(s)
- Boliang Dong
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Haihui Peng
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Stephen E Motika
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
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50
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