1
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Templ J, Schnürch M. A Guide for Mono-Selective N-Methylation, N-Ethylation, and N-n-Propylation of Primary Amines, Amides, and Sulfonamides and Their Applicability in Late-Stage Modification. Chemistry 2024; 30:e202304205. [PMID: 38353032 DOI: 10.1002/chem.202304205] [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: 12/18/2023] [Indexed: 03/06/2024]
Abstract
This review provides a comprehensive overview of mono-alkylation methodologies targeting crucial nitrogen moieties - amines, amides, and sulfonamides - found in organic building blocks and pharmaceuticals. Emphasizing the intersection of chemical precision with drug discovery, the central challenge addressed is achieving one-pot mono-selective short-chain N-alkylations (methylations, ethylations, and n-propylations), preventing undesired overalkylation. Additionally, sustainable, safe, and benign alternatives to traditional alkylating agents, including alcohols, carbon dioxide, carboxylic acids, nitriles, alkyl phosphates, quaternary ammonium salts, and alkyl carbonates, are explored. This review, categorized by the nature of the alkylating agent, aids researchers in selecting suitable methods for mono-selective N-alkylation.
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Affiliation(s)
- Johanna Templ
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060, Vienna, Austria
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry, TU Wien, Getreidemarkt 9/163, 1060, Vienna, Austria
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2
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Liu Y, Zhou T, Xuan L, Lin Y, Li F, Wang H, Lyu J, Yan Q, Zhou H, Wang W, Chen FE. Visible-Light-Driven C,N-Selective Heteroarylation of N-Fluoroalkyl Hydroxylamine Reagents with Quinoxalin-2(1 H)-ones. Org Lett 2023. [PMID: 37991496 DOI: 10.1021/acs.orglett.3c03594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Herein, we disclose a direct and powerful strategy for the synthesis of highly valuable α-trifluoromethylamine and N-trifluoroethylamine derivatives from a visible-light-promoted C,N-selective heteroarylation of N-trifluoroethyl hydroxylamine reagents with quinoxalin-2(1H)-ones under ambient conditions. The chemoselectivity of the process (trifluoroalkylation or N-trifluoroethylamination) can easily be dictated and modulated by a selection of N-trifluoroethyl hydroxylamine substrates. The key to success is the protecting group on the N atom of hydroxylamine reagents, which can control the process of 1,2-H shift of the in situ-generated N-trifluoroethyl radical. Remarkable features of this method include mild conditions, easy operation, high selectivity, and excellent functional group tolerability. More importantly, the trifluoroalkylated products can be readily derivatized into other interesting imidazo-fused heterocycles that would be of great potential for the exploitation of pharmaceutically relevant molecules.
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Affiliation(s)
- Yang Liu
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Tongyao Zhou
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Liangming Xuan
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Yanchun Lin
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Fuqi Li
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Haifeng Wang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Jian Lyu
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Qiongjiao Yan
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Hui Zhou
- CCNU-uOttawa Joint Research Centre, Key Laboratory of Pesticides & Chemical Biology Ministry of Education, International Joint Research Center for Intelligent Biosensing Technology and Health. College of Chemistry, Central China Normal University (CCNU), Wuhan 430079, P. R. China
| | - Wei Wang
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
| | - Fen-Er Chen
- Pharmaceutical Research Institute, Wuhan Institute of Technology, Wuhan 430205, P. R. China
- Engineering Center of Catalysis and Synthesis for Chiral Molecules, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China
- Shanghai Engineering Center of Industrial Catalysis for Chiral Drugs, Shanghai 200433, P. R. China
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3
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Kamali E, Mohammadkhani A, Pazoki F, Heydari A. Solvent‐Free Choline Derivative Synthesis as a Powerful Organic Synthesis Medium. ChemistrySelect 2023. [DOI: 10.1002/slct.202204642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Affiliation(s)
- Ehsan Kamali
- Chemistry Department Tarbiat Modares University Tehran PO Box: 14155–4838 Iran
| | | | - Farzane Pazoki
- Chemistry Department Tarbiat Modares University Tehran PO Box: 14155–4838 Iran
| | - Akbar Heydari
- Chemistry Department Tarbiat Modares University Tehran PO Box: 14155–4838 Iran
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4
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Chen FF, He XF, Zhu XX, Zhang Z, Shen XY, Chen Q, Xu JH, Turner NJ, Zheng GW. Discovery of an Imine Reductase for Reductive Amination of Carbonyl Compounds with Sterically Challenging Amines. J Am Chem Soc 2023; 145:4015-4025. [PMID: 36661845 DOI: 10.1021/jacs.2c11354] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The synthesis of structurally diverse amines is of fundamental significance in the pharmaceutical industry due to the ubiquitous presence of amine motifs in biologically active molecules. Biocatalytic reductive amination for amine production has attracted great interest owing to its synthetic advantages. Herein, we report the direct synthesis of a wide range of sterically demanding secondary amines, including several important active pharmaceutical ingredients and pharmaceutical intermediates, via reductive amination of carbonyl substrates and bulky amine nucleophiles employing imine reductases. Key to success for this route is the identification of an imine reductase from Penicillium camemberti with unusual substrate specificity and its further engineering, which empowered the accommodation of a broad range of sterically demanding amine nucleophiles encompassing linear alkyl and (hetero)aromatic (oxy)alkyl substituents and the formation of final amine products with up to >99% conversion. The practical utility of the biocatalytic route has been demonstrated by its application in the preparative synthesis of the anti-hyperparathyroidism drug cinacalcet.
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Affiliation(s)
- Fei-Fei Chen
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xue-Feng He
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xin-Xin Zhu
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Zhi Zhang
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xin-Yuan Shen
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Qi Chen
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jian-He Xu
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Nicholas J Turner
- School of Chemistry, Manchester Institute of Biotechnology, University of Manchester, 131 Princess Street, Manchester M1 7DN, U.K
| | - Gao-Wei Zheng
- State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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5
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Iridium-catalyzed reductive amination of carboxylic acids. J Catal 2023. [DOI: 10.1016/j.jcat.2023.01.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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6
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Li YN, Zhou MX, Wu JB, Wang Z, Zeng YF. Tandem reduction and trifluoroethylation of quinolines and quinoxalines with trifluoroacetic acid and trimethylamine borane. Org Biomol Chem 2022; 20:9613-9617. [PMID: 36420677 DOI: 10.1039/d2ob01923j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
A metal-free tandem reduction and N-trifluoroethylation of quinolines and quinoxalines has been developed. It provided a convenient route to access trifluoroethylated tetrahydroquinolines and tetrahydroquinoxalines. This one-pot method avoids the purification process of the intermediate. Mechanistically, the in situ-generated boryl acetal species reacted with tetrahydroquinolines to generate iminiums followed by reduction to give the target compounds.
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Affiliation(s)
- Yi-Na Li
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Ming-Xi Zhou
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Jin-Bo Wu
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Zhen Wang
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
| | - Yao-Fu Zeng
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China.
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7
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Tang JT, Gan Y, Li X, Ye B. Regioselective reductive transamination of peptidic amides enabled by a dual Zr(IV)–H catalysis. Chem 2022. [DOI: 10.1016/j.chempr.2022.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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8
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Zeng YF, Zhou MX, Li YN, Wu X, Guo Y, Wang Z. Switchable Reductive N-Trifluoroethylation and N-Trifluoroacetylation of Indoles with Trifluoroacetic Acid and Trimethylamine Borane. Org Lett 2022; 24:7440-7445. [PMID: 36173131 DOI: 10.1021/acs.orglett.2c03011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The metal-free reductive N-trifluoroethylation and N-trifluoroacetylation of indoles have been developed. Bench stable and inexpensive trimethylamine borane and trifluoroacetic acid (TFA) were utilized as the reductive and fluorinating reagents, respectively. These transformations were switchable on the basis of altering the loading of trimethylamine borane and TFA. Preliminary experiments indicated indoline was the common intermediate in these two transformations.
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Affiliation(s)
- Yao-Fu Zeng
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Ming-Xi Zhou
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Yi-Na Li
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Xin Wu
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Yu Guo
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Zhen Wang
- School of Pharmaceutical Science, Hunan Provincial Key Laboratory of Tumor Microenvironment Responsive Drug Research, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
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9
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Wang L, Sa R, Wei Y, Ma X, Lu C, Huang H, Fron E, Liu M, Wang W, Huang S, Hofkens J, Roeffaers MBJ, Wang Y, Wang J, Long J, Fu X, Yuan R. Near‐Infrared Light‐Driven Photoredox Catalysis by Transition‐Metal‐Complex Nanodots. Angew Chem Int Ed Engl 2022; 61:e202204561. [DOI: 10.1002/anie.202204561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Lele Wang
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Rongjian Sa
- Institute of Oceanography Ocean College Minjiang University Fuzhou 350108 P. R. China
| | - Yingcong Wei
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Xiongfeng Ma
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Chenggang Lu
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Haowei Huang
- cMACS, Faculty of Bioscience Engineering KU Leuven Celestijnenlaan 200F 3001 Heverlee Belgium
| | - Eduard Fron
- Department of Chemistry, Faculty of Sciences KU Leuven Celestijnenlaan 200F 3001 Heverlee Belgium
| | - Ming Liu
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Wei Wang
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Shuping Huang
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Johan Hofkens
- Department of Chemistry, Faculty of Sciences KU Leuven Celestijnenlaan 200F 3001 Heverlee Belgium
| | - Maarten B. J. Roeffaers
- cMACS, Faculty of Bioscience Engineering KU Leuven Celestijnenlaan 200F 3001 Heverlee Belgium
| | - Yan‐jie Wang
- School of Environment & Civil Engineering Dongguan University of Technology Dongguan 523808 (P. R. China)
| | - Junhui Wang
- State Key Laboratory of Molecular Reaction Dynamics and Collaborative Innovation Center of Chemistry for Energy Materials (iChEM) Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116023 China
| | - Jinlin Long
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Xianzhi Fu
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
| | - Rusheng Yuan
- State Key Laboratory of Photocatalysis on Energy and Environment College of Chemistry Fuzhou University Fuzhou 350108 P. R. China
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10
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Wang L, Sa R, Wei Y, Ma X, Lu C, Huang H, Fron E, Liu M, Wang W, Huang S, Hofkens J, Roeffaers MBJ, Wang YJ, Wang J, Long J, Fu X, Yuan R. Near‐Infrared Light‐Driven Photoredox Catalysis by Transition‐Metal‐Complex Nanodots. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lele Wang
- Fuzhou University College of Chemistry CHINA
| | | | | | | | | | - Haowei Huang
- KU Leuven: Katholieke Universiteit Leuven Faculty of Bioscience Engineering BELGIUM
| | - Eduard Fron
- KU Leuven: Katholieke Universiteit Leuven Faculty of Bioscience Engineering BELGIUM
| | - Ming Liu
- Fuzhou University College of Chemistry CHINA
| | - Wei Wang
- Fuzhou University College of Chemistry CHINA
| | | | - Johan Hofkens
- KU Leuven: Katholieke Universiteit Leuven Faculty of Bioscience Engineering BELGIUM
| | | | - Yan-jie Wang
- Dongguan University of Technology School of Environment & Civil Engineering CHINA
| | - Junhui Wang
- Dalian Institute of Chemical Physics State Key Laboratory of Catalysis State Key Laboratory of Molecular Reaction Dynamics and Collaborative Innovation Center of Chemistry for Energy Materials CHINA
| | - Jinlin Long
- Fuzhou University College of Chemistry CHINA
| | - Xianzhi Fu
- Fuzhou University College of Chemistry CHINA
| | - Rusheng Yuan
- Fuzhou University College of Chemistry 350002 Fuzhou CHINA
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11
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Xu D, Lin X, Li QY, Zhang SN, Xia SY, Zhai GY, Chen JS, Li XH. Boosting Mass Exchange between Pd/NC and MoC/NC Dual Junctions via Electron Exchange for Cascade CO 2 Fixation. J Am Chem Soc 2022; 144:5418-5423. [PMID: 35230846 DOI: 10.1021/jacs.1c12986] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Merging existing catalysts together as a cascade catalyst may achieve "one-pot" synthesis of complex but functional molecules by simplifying multistep reactions, which is the blueprint of sustainable chemistry with low pollutant emission and consumption of energy and materials only when the smooth mass exchange between different catalysts is ensured. Effective strategies to facilitate the mass exchange between different active centers, which may dominate the final activity of various cascade catalysts, have not been reached until now, even though charged interfaces due to work function driven electron exchange have been widely observed. Here, we successfully constructed mass (reactants and intermediates) exchange paths between Pd/N-doped carbon and MoC/N-doped carbon induced by interfacial electron exchange to trigger the mild and cascade methylation of amines using CO2 and H2. Theoretical and experimental results have demonstrated that the mass exchange between electron-rich MoC and electron-deficient Pd could prominently improve the production of N,N-dimethyl tertiary amine, which results in a remarkably high turnover frequency value under mild conditions, outperforming the state-of-the-art catalysts in the literature by a factor of 5.9.
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Affiliation(s)
- Dong Xu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Xiu Lin
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Qi-Yuan Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Shi-Nan Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Si-Yuan Xia
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Guang-Yao Zhai
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Jie-Sheng Chen
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
| | - Xin-Hao Li
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
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12
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Wang J, Liu S, Huang Y, Xu XH, Qing FL. Photoredox catalyzed C-H trifluoroethylamination of heteroarenes. Chem Commun (Camb) 2022; 58:1346-1349. [PMID: 34986214 DOI: 10.1039/d1cc06688a] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The first C-H trifluoroethylamination of heteroarenes with previously unknown N-trifluoroethyl hydroxylamine reagents was achieved under photoredox catalyzed conditions. In the presence of an iridium(III) photoredox catalyst, a variety of heteroarenes, such as indoles, benzofurans, and benzothiophenes, were smoothly converted to the trifluoroethylaminated products in moderate to high yields and with excellent regioselectivity.
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Affiliation(s)
- Juan Wang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China.
| | - Shuai Liu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China.
| | - Yangen Huang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China.
| | - Xiu-Hua Xu
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China.
| | - Feng-Ling Qing
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, 2999 North Renmin Lu, Shanghai 201620, China. .,Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Science, Chinese Academy of Science, 345 Lingling Lu, Shanghai 200032, China
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13
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Wang A, Xie Y, Wang J, Shi D, Yu H. Atom-economic amide synthesis by using an iron-substituted polyoxometalate catalyst. Chem Commun (Camb) 2022; 58:1127-1130. [PMID: 34981100 DOI: 10.1039/d1cc05417a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report an efficient and economical amidation strategy by using a polyoxometalate-based iron catalyst that affords the corresponding amide products in good yields. All of the aliphatic, aromatic and heterocyclic substrates are produced in high yields without additional base or organic ligands. Most importantly, the first example of heterogeneous iron(III)-catalyzed formation of the diamides is developed.
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Affiliation(s)
- Aiping Wang
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China.
| | - Ya Xie
- School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, P. R. China
| | - Jingjing Wang
- Laboratoire d' Electrochimie et de Chimie Physique du Corps Solide, Institut de Chimie, UMR CNRS 7177, Université de Strasbourg, 67081 Strasbourg cedex, France
| | - Da Shi
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China.
| | - Han Yu
- School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. China. .,Key Lab of Organic Optoelectronics & Molecular Engineering of Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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14
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Li J, Huang C, Li C. Deoxygenative Functionalizations of Aldehydes, Ketones and Carboxylic Acids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jianbin Li
- Department of Chemistry FRQNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Chia‐Yu Huang
- Department of Chemistry FRQNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
| | - Chao‐Jun Li
- Department of Chemistry FRQNT Centre for Green Chemistry and Catalysis McGill University 801 Sherbrooke St. W. Montreal Quebec H3A 0B8 Canada
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15
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Li W, Yan F, Cai S, Ding L, Li B, Zhang B, Zhang Y, Zhu L. Platinum nanoparticles as recyclable heterogeneous catalyst for selective methylation of amines and imines with formic acid: Indirect utilization of CO2. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Wang C, Ji X, Deng GJ, Huang H. Copper-catalyzed three-component N-alkylation of quinazolinones and azoles. Org Biomol Chem 2022; 20:1200-1204. [DOI: 10.1039/d1ob02333k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu-catalyzed three-component N-alkylated coupling reaction of N-heteroarenes with methyl ketones and one carbon source has been developed. Using methyl ketones as alkylation reagent and DMPA (N,N’-dimethylpropionamide) as one carbon...
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17
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Li J, Li CJ, Huang CY. Deoxygenative Functionalizations of Aldehydes, Ketones and Carboxylic Acids. Angew Chem Int Ed Engl 2021; 61:e202112770. [PMID: 34780098 DOI: 10.1002/anie.202112770] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Indexed: 11/12/2022]
Abstract
Conversion of carbonyl compounds, including aldehydes, ketones and carboxylic acids, into functionalized alkanes via deoxygenation would be highly desirable from a sustainability perspective and very enabling in chemical synthesis. This review covers the recent methodology development in carbonyl and carboxyl deoxygenative functionalizations, highlighting some typical and significant contributions in this field. These advances will be categorized based on types of bond formation, and in each part, selected examples will be discussed from their generalized mechanistic perspectives. Four summarized reactivity modes of aldehydes and ketones during the deoxygenation, namely, bis-electrophile, carbenoid, bis-nucleophile and alkyl radical, are presented, while the carboxylic acids are deoxygenated mainly via activated carbonyl or acetal intermediates.
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Affiliation(s)
| | - Chao-Jun Li
- McGill University, Chemistry, 801 Sherbrooke St. West, H3A0B8, Montreal, CANADA
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18
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Dong C, Huang L, Guan Z, Huang C, He Y. Visible‐Light‐Mediated Aerobic Oxidative C(
sp
3
)−C(
sp
3
) Bond Cleavage of Morpholine Derivatives Using 4CzIPN as a Photocatalyst. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100455] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Chun‐Lin Dong
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 People's Republic of China
| | - Lan‐Qian Huang
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 People's Republic of China
| | - Zhi Guan
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 People's Republic of China
| | - Chu‐Sheng Huang
- Guangxi Teachers Education University Nanning 530001 People's Republic of China
| | - Yan‐Hong He
- Key Laboratory of Applied Chemistry of Chongqing Municipality School of Chemistry and Chemical Engineering Southwest University Chongqing 400715 People's Republic of China
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19
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20
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Wei D, Netkaew C, Wu J, Darcel C. Iron‐catalyzed hydrosilylation of diacids in the presence of amines: a new route to cyclic amines. ChemCatChem 2020. [DOI: 10.1002/cctc.202000881] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Duo Wei
- Univ Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Chakkrit Netkaew
- Univ Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Jiajun Wu
- Univ Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
| | - Christophe Darcel
- Univ Rennes, CNRS, ISCR Institut des Sciences Chimiques de Rennes) UMR 6226 F-35000 Rennes France
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21
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Affiliation(s)
- Renat Kadyrov
- Institute of Inorganic ChemistryAcademy of Sciences of the Czech Republic 25068 Řež Czech Republic
- Evonik Resource Efficiency GmbH Rodenbacher Chaussee 4 63457 Hanau Germany
| | - Konrad Moebus
- Evonik Resource Efficiency GmbH Rodenbacher Chaussee 4 63457 Hanau Germany
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22
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Lu C, Qiu Z, Xuan M, Huang Y, Lou Y, Zhu Y, Shen H, Lin B. Direct
N‐
Alkylation/Fluoroalkylation of Amines Using Carboxylic Acids via Transition‐Metal‐Free Catalysis. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000679] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Chunlei Lu
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
- Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Zetian Qiu
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Maojie Xuan
- School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 People's Republic of China
| | - Yan Huang
- School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 People's Republic of China
| | - Yongjia Lou
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Yiling Zhu
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Hao Shen
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
| | - Bo‐Lin Lin
- School of Physical Science and Technology (SPST) ShanghaiTech University Shanghai 201210 People's Republic of China
- Shanghai Institute of Organic Chemistry Chinese Academy of Sciences Shanghai 200032 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
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23
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Stoll EL, Tongue T, Andrews KG, Valette D, Hirst DJ, Denton RM. A practical catalytic reductive amination of carboxylic acids. Chem Sci 2020; 11:9494-9500. [PMID: 34123174 PMCID: PMC8161228 DOI: 10.1039/d0sc02271c] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/12/2020] [Indexed: 01/01/2023] Open
Abstract
We report reductive alkylation reactions of amines using carboxylic acids as nominal electrophiles. The two-step reaction exploits the dual reactivity of phenylsilane and involves a silane-mediated amidation followed by a Zn(OAc)2-catalyzed amide reduction. The reaction is applicable to a wide range of amines and carboxylic acids and has been demonstrated on a large scale (305 mmol of amine). The rate differential between the reduction of tertiary and secondary amide intermediates is exemplified in a convergent synthesis of the antiretroviral medicine maraviroc. Mechanistic studies demonstrate that a residual 0.5 equivalents of carboxylic acid from the amidation step is responsible for the generation of silane reductants with augmented reactivity, which allow secondary amides, previously unreactive in zinc/phenylsilane systems, to be reduced.
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Affiliation(s)
- Emma L Stoll
- School of Chemistry, GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham 6 Triumph Road Nottingham NG7 2GA UK
| | - Thomas Tongue
- School of Chemistry, GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham 6 Triumph Road Nottingham NG7 2GA UK
| | - Keith G Andrews
- School of Chemistry, GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham 6 Triumph Road Nottingham NG7 2GA UK
| | | | - David J Hirst
- GlaxoSmithKline Gunnels Wood Road Stevenage SG1 2NY UK
| | - Ross M Denton
- School of Chemistry, GlaxoSmithKline Carbon Neutral Laboratories for Sustainable Chemistry, University of Nottingham 6 Triumph Road Nottingham NG7 2GA UK
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24
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Nogues C, Argouarch G. Rhodium‐Catalyzed Direct Reductive Amination of Aldehydes and Ketones with Hydrosilanes. ChemistrySelect 2020. [DOI: 10.1002/slct.202001002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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25
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First used of Alkylbenzimidazole-Cobalt(II) complexes as a catalyst for the N-Alkylation of amines with alcohols under solvent-free medium. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121285] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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26
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Omprakash Rathi J, Subray Shankarling G. Recent Advances in the Protection of Amine Functionality: A Review. ChemistrySelect 2020. [DOI: 10.1002/slct.202000764] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jyoti Omprakash Rathi
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
| | - Ganapati Subray Shankarling
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
- Department of Dyestuff TechnologyInstitute of Chemical Technology N. P. Marg, Matunga (E) Mumbai 400 019 India
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27
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Arora V, Dutta M, Das K, Das B, Srivastava HK, Kumar A. Solvent-Free N-Alkylation and Dehydrogenative Coupling Catalyzed by a Highly Active Pincer-Nickel Complex. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00233] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Vinay Arora
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Moumita Dutta
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Kanu Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Babulal Das
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Hemant Kumar Srivastava
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
- National Institute of Pharmaceutical Education and Research Guwahati, Guwahati 781101, Assam, India
| | - Akshai Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
- Center for Nanotechnology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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28
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Tamura S, Sugawara A, Sato E, Sato F, Sato K, Kawano T. New approach for induction of alkyl moiety to aliphatic amines by NaBH(OAc)3 with carboxylic acid. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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29
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Zhang C, Liang Z, Lu F, Jia X, Zhang G, Hu ML. Base-mediated cascade amidination/N-alkylation of amines by alcohols. Chem Commun (Camb) 2020; 56:10489-10492. [DOI: 10.1039/d0cc04831c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient base mediated N-alkylation with nitriles as a water acceptor was described, providing a convenient method to construct the different substituted diamino compounds, 15N labeled amine molecules and could scaled up to 1 mol scale.
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Affiliation(s)
- Chunyan Zhang
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- Shandong Key Laboratory of Biochemical Analysis
- Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong
- College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology
| | - Zuyu Liang
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- Shandong Key Laboratory of Biochemical Analysis
- Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong
- College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology
| | - Fenghong Lu
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- Shandong Key Laboratory of Biochemical Analysis
- Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong
- College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology
| | - Xiaofei Jia
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- Shandong Key Laboratory of Biochemical Analysis
- Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong
- College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology
| | - Guoying Zhang
- Key Laboratory of Sensor Analysis of Tumor Marker
- Ministry of Education
- Shandong Key Laboratory of Biochemical Analysis
- Key Laboratory of Analytical Chemistry for Life Science in Universities of Shandong
- College of Chemistry and Molecular Engineering. Qingdao University of Science and Technology
| | - Mao-Lin Hu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- P. R. China
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30
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Subaramanian M, Midya SP, Ramar PM, Balaraman E. General Synthesis of N-Alkylation of Amines with Secondary Alcohols via Hydrogen Autotransfer. Org Lett 2019; 21:8899-8903. [DOI: 10.1021/acs.orglett.9b02990] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Murugan Subaramanian
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
| | - Siba P. Midya
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
| | - Palmurukan M. Ramar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
| | - Ekambaram Balaraman
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Tirupati, Tirupati − 517507, India
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31
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Das K, Nandi PG, Islam K, Srivastava HK, Kumar A. N-Alkylation of Amines Catalyzed by a Ruthenium-Pincer Complex in the Presence of in situ Generated Sodium Alkoxide. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901310] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kanu Das
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039 Assam India
| | - Pran Gobinda Nandi
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039 Assam India
| | - Khadimul Islam
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039 Assam India
| | - Hemant Kumar Srivastava
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039 Assam India
| | - Akshai Kumar
- Department of Chemistry; Indian Institute of Technology Guwahati; Guwahati - 781039 Assam India
- Centre for Nanotechnology; Indian Institute of Technology Guwahati; Guwahati - 781039 Assam India
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32
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Zhao B, Wang M, Shi Z. Single-Electron-Transfer-Induced C(sp 3)-N Couplings via C-C Bond Cleavage of Cycloketoxime Esters. J Org Chem 2019; 84:10145-10159. [PMID: 31313585 DOI: 10.1021/acs.joc.9b01338] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A practical single-electron-transfer-induced selective C(sp3)-N coupling of cycloketoximes with anilines via C-C bond cleavage under copper-catalytic and synergetic photoredox/copper-catalytic reaction systems has been uncovered. These two powerful and simple protocols demonstrated excellent selectivity and good functional group compatibility without any base or ligand control. Preliminary mechanistic experiments indicated that a radical-mediated process was involved in these transformations.
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Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China.,College of Science , Nanjing Forestry University , Nanjing 210037 , China
| | - Minyan Wang
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
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33
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Trillo P, Adolfsson H. Direct Catalytic Reductive N-Alkylation of Amines with Carboxylic Acids: Chemoselective Enamine Formation and further Functionalizations. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01974] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Paz Trillo
- Department of Chemistry, Umeå University, KBC3, Linnaeus väg 10, SE-90187 Umeå, Sweden
| | - Hans Adolfsson
- Department of Chemistry, Umeå University, KBC3, Linnaeus väg 10, SE-90187 Umeå, Sweden
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34
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Emayavaramban B, Chakraborty P, Sundararaju B. Cobalt-Catalyzed Reductive Alkylation of Amines with Carboxylic Acids. CHEMSUSCHEM 2019; 12:3089-3093. [PMID: 30418691 DOI: 10.1002/cssc.201802144] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 11/12/2018] [Indexed: 06/09/2023]
Abstract
Direct reductive alkylation of amines with carboxylic acid is carried out by using an inexpensive, air-stable cobalt/triphos catalytic system with molecular hydrogen as the reductant. This efficient synthetic method proceeds through reduction and condensation, followed by reduction of the in situ-generated imine into the amine in a green catalytic process.
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Affiliation(s)
- Balakumar Emayavaramban
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India
| | - Priyanka Chakraborty
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, 208 016, India
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35
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Xuan M, Lu C, Liu M, Lin BL. Air-Tolerant Direct Thiol Esterification with Carboxylic Acids Using Hydrosilane via Simple Inorganic Base Catalysis. J Org Chem 2019; 84:7694-7701. [PMID: 31140282 DOI: 10.1021/acs.joc.9b00500] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Direct thioesterification of carboxylic acids with thiols using nontoxic activation agents is highly desirable. Herein, an efficient and practical protocol using safe and inexpensive industrial waste polymethylhydrosiloxane as the activation agent and K3PO4 with 18-crown-6 as a catalyst is described. Various functional groups on carboxylic acid and thiol substituents can be tolerated by the present system to afford thioesters in yields of 19-100%.
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Affiliation(s)
- Maojie Xuan
- School of Chemical and Environmental Engineering , Shanghai Institute of Technology , Shanghai 201418 , People's Republic of China.,School of Physical Science and Technology (SPST) , ShanghaiTech University , Shanghai 201210 , People's Republic of China
| | - Chunlei Lu
- School of Physical Science and Technology (SPST) , ShanghaiTech University , Shanghai 201210 , People's Republic of China.,Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China
| | - Meina Liu
- School of Chemical and Environmental Engineering , Shanghai Institute of Technology , Shanghai 201418 , People's Republic of China
| | - Bo-Lin Lin
- School of Physical Science and Technology (SPST) , ShanghaiTech University , Shanghai 201210 , People's Republic of China.,Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , Shanghai 200032 , People's Republic of China
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36
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Yang L, Zhang JY, Duan XH, Gao P, Jiao J, Guo LN. Copper-Catalyzed Cyanoalkylation of Amines via C–C Bond Cleavage: An Approach for C(sp3)–N Bond Formations. J Org Chem 2019; 84:8615-8629. [DOI: 10.1021/acs.joc.9b01084] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Lin Yang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jia-Yu Zhang
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Xin-Hua Duan
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Pin Gao
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Jiao Jiao
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
| | - Li-Na Guo
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Materials Chemistry, and MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, China
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37
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Catalytic Reductive N‐Alkylations Using CO
2
and Carboxylic Acid Derivatives: Recent Progress and Developments. Angew Chem Int Ed Engl 2019; 58:12820-12838. [DOI: 10.1002/anie.201810121] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Indexed: 12/12/2022]
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38
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Cabrero‐Antonino JR, Adam R, Beller M. Katalytische reduktive N‐Alkylierungen unter Verwendung von CO
2
und Carbonsäurederivaten: Aktuelle Entwicklungen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201810121] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jose R. Cabrero‐Antonino
- Leibniz-Institut für Katalyse Homogeneous Catalysis Albert-Einstein-Straße 29a Rostock 18059 Deutschland
- Instituto de Tecnología Química, Universitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC) Avda. de los Naranjos s/n València 46022 Spanien
| | - Rosa Adam
- Leibniz-Institut für Katalyse Homogeneous Catalysis Albert-Einstein-Straße 29a Rostock 18059 Deutschland
- Instituto de Tecnología Química, Universitat Politécnica de València-Consejo Superior Investigaciones Científicas (UPV-CSIC) Avda. de los Naranjos s/n València 46022 Spanien
| | - Matthias Beller
- Leibniz-Institut für Katalyse Homogeneous Catalysis Albert-Einstein-Straße 29a Rostock 18059 Deutschland
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39
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Yao W, Fang H, He Q, Peng D, Liu G, Huang Z. A BEt 3-Base Catalyst for Amide Reduction with Silane. J Org Chem 2019; 84:6084-6093. [PMID: 31012321 DOI: 10.1021/acs.joc.9b00277] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reported herein is the development of a simple but practical catalytic system for the selective reduction of amides with hydrosilane or hydrosiloxane. Low-cost and readily available triethylborane (1.0 M in THF), in combination with a catalytic amount of an alkali metal base, was found to catalyze the reduction of all three amide classes (tertiary, secondary, and primary amides) to form amines under mild conditions. In addition, the selective transformation of secondary amides to aldimines and primary amides to nitriles can also be achieved by using a proper combination of BEt3 and base. The scope of these BEt3-base-catalyzed amide hydrosilylation reactions has been explored in depth. Preliminary results of mechanistic studies suggest a modified Piers' silane Si-H···B activation mode wherein the hydride abstraction by BEt3 is promoted by the coordination of an alkoxide or hydroxide anion to the Si center.
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Affiliation(s)
- Wubing Yao
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Huaquan Fang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Qiaoxing He
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China.,School of Physical Science and Technology , Shanghai Tech University , Shanghai 201210 , China
| | - Dongjie Peng
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Guixia Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Zheng Huang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China.,School of Physical Science and Technology , Shanghai Tech University , Shanghai 201210 , China
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40
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Ebule R, Mudshinge S, Nantz MH, Mashuta MS, Hammond GB, Xu B. A 5 + 1 Protic Acid Assisted Aza-Pummerer Approach for Synthesis of 4-Chloropiperidines from Homoallylic Amines. J Org Chem 2019; 84:3249-3259. [PMID: 30758961 DOI: 10.1021/acs.joc.8b03162] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We report that HCl·DMPU induces the formation of (thiomethyl)methyl carbenium ion from DMSO under mild conditions. Homoallylic amines react with this electrophile to generate 4-chloropiperidines in good yields. The method applies to both aromatic and aliphatic amines. The use of HCl·DMPU as both non-nucleophilic base and chloride source constitutes an environmentally benign alternative for piperidine formation. The reaction has a broad substrate scope, and the conditions offer good chemical yields with high functional group tolerance and scalability.
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Affiliation(s)
- Rene Ebule
- Department of Chemistry , University of Louisville , Louisville , Kentucky 40292 , United States
| | - Sagar Mudshinge
- Department of Chemistry , University of Louisville , Louisville , Kentucky 40292 , United States
| | - Michael H Nantz
- Department of Chemistry , University of Louisville , Louisville , Kentucky 40292 , United States
| | - Mark S Mashuta
- Department of Chemistry , University of Louisville , Louisville , Kentucky 40292 , United States
| | - Gerald B Hammond
- Department of Chemistry , University of Louisville , Louisville , Kentucky 40292 , United States
| | - Bo Xu
- College of Chemistry, Chemical Engineering and Biotechnology , Donghua University , 2999 North Renmin Lu , Shanghai 201620 , China
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41
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Ramsden JI, Heath RS, Derrington SR, Montgomery SL, Mangas-Sanchez J, Mulholland KR, Turner NJ. Biocatalytic N-Alkylation of Amines Using Either Primary Alcohols or Carboxylic Acids via Reductive Aminase Cascades. J Am Chem Soc 2019; 141:1201-1206. [DOI: 10.1021/jacs.8b11561] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jeremy I. Ramsden
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Rachel S. Heath
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Sasha R. Derrington
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Sarah L. Montgomery
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Juan Mangas-Sanchez
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
| | - Keith R. Mulholland
- Chemical Development, AstraZeneca, Silk Road Business Park, Macclesfield SK10 2NA, United Kingdom
| | - Nicholas J. Turner
- School of Chemistry, University of Manchester, Manchester Institute of Biotechnology, 131 Princess Street, Manchester M1 7DN, United Kingdom
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42
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Cui Y, Lu T, Shi Z, Feng J. Dehydroxylated amination accompanied by 1,2-sulfur immigration. Org Chem Front 2019. [DOI: 10.1039/c8qo01211c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A sulfur neighbouring-group participation N-alkylation method is presented, which enables the simultaneous C–O cleavage, C–S immigration and C–N formation performed in a metal free system.
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Affiliation(s)
- Yong Cui
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Tao Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Zhihao Shi
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing 210009
- PR China
| | - Jie Feng
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing 210009
- PR China
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43
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Sorribes I, Lemos SCS, Martín S, Mayoral A, Lima RC, Andrés J. Palladium doping of In2O3 towards a general and selective catalytic hydrogenation of amides to amines and alcohols. Catal Sci Technol 2019. [DOI: 10.1039/c9cy02128k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first general heterogeneous hydrogenation of amides to amines and alcohols is performed under additive-free conditions and without product de-aromatization by applying a Pd-doped In2O3 catalyst.
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Affiliation(s)
- Iván Sorribes
- Departament de Química Física i Analítica
- Universitat Jaume I
- 12071 Castelló
- Spain
| | | | - Santiago Martín
- Departamento de Química Física
- Facultad de Ciencias
- Instituto de Ciencias de Materiales de Aragón (ICMA)
- Universidad de Zaragoza-CSIC
- 50009 Zaragoza
| | - Alvaro Mayoral
- Center for High-resolution Electron Microscopy (CħEM)
- School of Physical Science and Technology
- ShanghaiTech University
- Shanghai
- China
| | - Renata C. Lima
- Instituto de Química
- Universidade Federal de Uberlândia
- Uberlândia
- Brazil
| | - Juan Andrés
- Departament de Química Física i Analítica
- Universitat Jaume I
- 12071 Castelló
- Spain
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44
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Hu B, Jiang YY, Liu P, Zhang RX, Zhang Q, Liu TT, Bi S. The mechanism and structure–activity relationship of amide bond formation by silane derivatives: a computational study. Org Biomol Chem 2019; 17:9232-9242. [DOI: 10.1039/c9ob01605h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The detailed reaction mechanism and structure–activity relationship of substrates in silane reagent-mediated amide bond formation reactions are clarified.
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Affiliation(s)
- Ben Hu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Yuan-Ye Jiang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Peng Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Rui-Xue Zhang
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Qi Zhang
- Institute of Industry & Equipment Technology
- Hefei University of Technology
- Hefei 230009
- People's Republic of China
| | - Tian-Tian Liu
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
| | - Siwei Bi
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- People's Republic of China
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45
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Şahin N, Özdemir N, Gürbüz N, Özdemir İ. Novel N
-Alkylbenzimidazole-Ruthenium (II) complexes: Synthesis and catalytic activity of N-alkylating reaction under solvent-free medium. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4704] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Neslihan Şahin
- Department of Basic Education; University of Cumhuriyet Faculty of Education; 58140 Sivas Turkey
- Department of Chemistry, University; University of İnönü Faculty of Science and Art; 44280 Malatya Turkey
- University of İnönü Catalysis Research and Application Center; 44280 Malatya Turkey
| | - Namık Özdemir
- Faculty of Education; University of Ondokuz Mayıs Department of Mathematics and Science Education; 55139 Samsun Turkey
| | - Nevin Gürbüz
- Department of Chemistry, University; University of İnönü Faculty of Science and Art; 44280 Malatya Turkey
- University of İnönü Catalysis Research and Application Center; 44280 Malatya Turkey
| | - İsmail Özdemir
- Department of Chemistry, University; University of İnönü Faculty of Science and Art; 44280 Malatya Turkey
- University of İnönü Catalysis Research and Application Center; 44280 Malatya Turkey
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46
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Chen H, Yan L, Wei H. Mechanism of Boron-Catalyzed N-Alkylation of Primary and Secondary Arylamines with Ketones Using Silanes under “Wet” Conditions. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00405] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Hongcai Chen
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory for NSLSCS, Nanjing Normal University, Nanjing 210097, China
| | - Lina Yan
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory for NSLSCS, Nanjing Normal University, Nanjing 210097, China
| | - Haiyan Wei
- Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Jiangsu Provincial Key Laboratory for NSLSCS, Nanjing Normal University, Nanjing 210097, China
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47
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Qiao C, Yao XY, Liu XF, Li HR, He LN. Efficient Iron-Catalyzed Reductive N-Alkylation of Aromatic Amines with Carboxylic Acid and Phenylsilane. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800420] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Chang Qiao
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Xiang-Yang Yao
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Xiao-Fang Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Hong-Ru Li
- College of Pharmacy and Tianjin Key Laboratory of Molecular Drug Research; Nankai University; Tianjin 300353 China
| | - Liang-Nian He
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
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48
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Liu W, Sahoo B, Spannenberg A, Junge K, Beller M. Tailored Cobalt-Catalysts for Reductive Alkylation of Anilines with Carboxylic Acids under Mild Conditions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201806132] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Weiping Liu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Basudev Sahoo
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
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49
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Liu W, Sahoo B, Spannenberg A, Junge K, Beller M. Tailored Cobalt-Catalysts for Reductive Alkylation of Anilines with Carboxylic Acids under Mild Conditions. Angew Chem Int Ed Engl 2018; 57:11673-11677. [PMID: 30019810 DOI: 10.1002/anie.201806132] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Indexed: 11/09/2022]
Abstract
The first cobalt-catalyzed hydrogenative N-methylation and alkylation of amines with readily available carboxylic acid feedstocks as alkylating agents and H2 as ideal reductant is described. Combination of tailor-made triphos ligands with cobalt(II) tetrafluoroborate significantly improved the efficiency, thus promoting the reaction under milder conditions. This novel protocol allows for a broad substrate scope with good functional group tolerance, even in the presence of reducible alkenes, esters, and amides.
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Affiliation(s)
- Weiping Liu
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Basudev Sahoo
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Straße 29a, 18059, Rostock, Germany
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50
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Qiao C, Liu XF, Fu HC, Yang HP, Zhang ZB, He LN. Directly Bridging Indoles to 3,3′-Bisindolylmethanes by Using Carboxylic Acids and Hydrosilanes under Mild Conditions. Chem Asian J 2018; 13:2664-2670. [DOI: 10.1002/asia.201800766] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 06/11/2018] [Indexed: 01/14/2023]
Affiliation(s)
- Chang Qiao
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Xiao-Fang Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Hong-Chen Fu
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Hao-Peng Yang
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Zhi-Bo Zhang
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Liang-Nian He
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
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