1
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Cheng X, Wang L, Liu Y, Wan X, Xiang Z, Li R, Wan X. Molecular Iodine‐Catalysed Reductive Alkylation of Indoles: Late‐Stage Diversification for Bioactive Molecules. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xionglve Cheng
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Lili Wang
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Yide Liu
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Xiao Wan
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Zixin Xiang
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Ruyi Li
- Soochow University College of Chemistry, Chemical Engineering and Materials Science 215123 Suzhou CHINA
| | - Xiaobing Wan
- Soochow University College of Chemistry, Chemical Engineering and Materials Science Renai road 215123 Suzhou CHINA
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2
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Zhang S, Duan YN, Qian Y, Tang W, Zhang R, Wen J, Zhang X. Cobalt-Catalyzed Hydrogenative Transformation of Nitriles. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03461] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Shaoke Zhang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Ya-Nan Duan
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, China
| | - Yu Qian
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Wenyue Tang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Runtong Zhang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Jialin Wen
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
| | - Xumu Zhang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, 1088 Xueyuan Road, Shenzhen 518055, China
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3
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Zhou XY, Chen X. Pd/C-Catalyzed transfer hydrogenation of N-H indoles with trifluoroethanol and tetrahydroxydiboron as the hydrogen source. Org Biomol Chem 2021; 19:548-551. [PMID: 33367398 DOI: 10.1039/d0ob02080j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Under the guidance of the known mechanism of the hydrogenation of indoles and transfer hydrogenation with tetrahydroxydiboron (B2(OH)4), Pd/C catalyzed transfer hydrogenation of N-H indoles with trifluoroethanol and tetrahydroxydiborane as the hydrogen source has been developed. This provides an efficient strategy and catalytic system for the reduction of un-activated N-H indoles, and N-H indolines are obtained with good to excellent yields. In addition, a series of the isotopic labelling experiments were carried out to probe the mechanism.
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Affiliation(s)
- Xiao-Yu Zhou
- School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, 553004, China.
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4
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Noland WE, Novikov AV, Brown CD. Condensation of 2-methylindole with acetophenones: An unexpected formation of 2-arylanilines. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1672745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Wayland E. Noland
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota, USA
| | - Alexei V. Novikov
- Department of Chemistry, University of Minnesota, Minneapolis, Minnesota, USA
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5
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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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6
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Cabrero-Antonino JR, Adam R, Junge K, Beller M. Cobalt-catalysed reductive C-H alkylation of indoles using carboxylic acids and molecular hydrogen. Chem Sci 2017; 8:6439-6450. [PMID: 29163930 PMCID: PMC5632795 DOI: 10.1039/c7sc02117h] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/11/2017] [Indexed: 12/29/2022] Open
Abstract
The direct CH-alkylation of indoles using carboxylic acids is presented for the first time. The catalytic system based on the combination of Co(acac)3 and 1,1,1-tris(diphenylphosphinomethyl)-ethane (Triphos, L1), in the presence of Al(OTf)3 as co-catalyst, is able to perform the reductive alkylation of 2-methyl-1H-indole with a wide range of carboxylic acids. The utility of the protocol was further demonstrated through the C3 alkylation of several substituted indole derivatives using acetic, phenylacetic or diphenylacetic acids. In addition, a careful selection of the reaction conditions allowed to perform the selective C3 alkenylation of some indole derivatives. Moreover, the alkenylation of C2 position of 3-methyl-1H-indole was also possible. Control experiments indicate that the aldehyde, in situ formed from the carboxylic acid hydrogenation, plays a central role in the overall process. This new protocol enables the direct functionalization of indoles with readily available and stable carboxylic acids using a non-precious metal based catalyst and hydrogen as reductant.
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Affiliation(s)
- Jose R Cabrero-Antonino
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany .
| | - Rosa Adam
- 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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7
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Di Gregorio G, Mari M, Bartoccini F, Piersanti G. Iron-Catalyzed Direct C3-Benzylation of Indoles with Benzyl Alcohols through Borrowing Hydrogen. J Org Chem 2017; 82:8769-8775. [DOI: 10.1021/acs.joc.7b01603] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Giovanni Di Gregorio
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Michele Mari
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Francesca Bartoccini
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
| | - Giovanni Piersanti
- Department of Biomolecular
Sciences, University of Urbino “Carlo Bo”, P.zza Rinascimento
6, 61029 Urbino, Pesaro and Urbino (PU), Italy
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8
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Kilic H, Bayindir S, Erdogan E, Agopcan Cinar S, Konuklar FAS, Bali SK, Saracoglu N, Aviyente V. Bismuth nitrate-promoted disproportionative condensation of indoles with cyclohexanone: a new-type azafulvenium reactivity of indole. NEW J CHEM 2017. [DOI: 10.1039/c7nj01987d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The bismuth nitrate-promoted disproportionative condensation of indoles with cyclohexanone in one pot, to yield C3-cyclohexyl substituted indoles and 1,3-di(1H-indol-3-yl)benzene derivatives is reported for the first time.
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Affiliation(s)
- H. Kilic
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey
| | - S. Bayindir
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey
| | - E. Erdogan
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey
| | - S. Agopcan Cinar
- Department of Chemistry
- Faculty of Arts and Sciences
- Boğaziçi University
- Istanbul
- Turkey
| | | | - S. K. Bali
- Department of Chemistry
- Faculty of Arts and Sciences
- Boğaziçi University
- Istanbul
- Turkey
| | - N. Saracoglu
- Department of Chemistry
- Faculty of Sciences
- Atatürk University
- Erzurum
- Turkey
| | - V. Aviyente
- Department of Chemistry
- Faculty of Arts and Sciences
- Boğaziçi University
- Istanbul
- Turkey
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9
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Nomiyama S, Hondo T, Tsuchimoto T. Easy Access to a Library of Alkylindoles: Reductive Alkylation of Indoles with Carbonyl Compounds and Hydrosilanes under Indium Catalysis. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500502] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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10
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Xiu J, Yi W. Radical-based regioselective cross-coupling of indoles and cycloalkanes. Catal Sci Technol 2016. [DOI: 10.1039/c5cy01907a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An investigation on regiochemistry of radical functionalization of indoles using cycloalkanes through di-tert-butyl peroxide (DTBP)-promoted C(sp3)–H activation was conducted. A wide range of indoles bearing substituents at different position was functionalized directly with simple cycloalkanes in moderate to high regioselctivity.
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Affiliation(s)
- Jianmin Xiu
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
| | - Wenbin Yi
- School of Chemical Engineering
- Nanjing University of Science and Technology
- Nanjing 210094
- People's Republic of China
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11
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Ramana DV, Vinayak B, Dileepkumar V, Murty USN, Chowhan LR, Chandrasekharam M. Hydrophobically directed, catalyst-free, multi-component synthesis of functionalized 3,4-dihydroquinazolin-2(1H)-ones. RSC Adv 2016. [DOI: 10.1039/c6ra00381h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A one-pot three-component reaction of o-formyl carbamate, a primary amine, a nucleophile (1H-indole or 2-napthol) in water generated a variety of functionalised 3,4-dihydroquinazolin-2(1H)-one derivatives.
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Affiliation(s)
- Daggupati V. Ramana
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
| | - B. Vinayak
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
| | - V. Dileepkumar
- Biology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
| | - U. S. N. Murty
- Biology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
| | - L. Raju Chowhan
- School of Chemical Sciences
- Central University of Gujarat
- Gandhinagar-382030
- India
| | - M. Chandrasekharam
- I&PC Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
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12
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Wang L, Chen Y, Xiao J. Alkylideneindoleninium Ions and Alkylideneindolenines: Key Intermediates for the Asymmetric Synthesis of 3-Indolyl Derivatives. ASIAN J ORG CHEM 2014. [DOI: 10.1002/ajoc.201402093] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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13
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A highly efficient route to C-3 alkyl-substituted indoles via a metal-free transfer hydrogenation. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.064] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Chen S, Liao Y, Zhao F, Qi H, Liu S, Deng GJ. Palladium-Catalyzed Direct Arylation of Indoles with Cyclohexanones. Org Lett 2014; 16:1618-21. [DOI: 10.1021/ol500231c] [Citation(s) in RCA: 82] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Shanping Chen
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yunfeng Liao
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- School of Chemistry & Chemical Engineering, Hunan Institute of Engineering, Xiangtan 411104, China
| | - Feng Zhao
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Hongrui Qi
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Saiwen Liu
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key
Laboratory of Environmentally Friendly Chemistry and Application of
Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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15
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Siddalingamurthy E, Mahadevan KM, Masagalli JN, Harishkumar HN. Mild, efficient Fischer indole synthesis using 2,4,6-trichloro-1,3,5-triazine (TCT). Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.157] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Putra AE, Takigawa K, Tanaka H, Ito Y, Oe Y, Ohta T. Transition-Metal-Catalyzed Regioselective Alkylation of Indoles with Alcohols. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300744] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Han X, Wu J. Redox Chain Reaction-Indole and Pyrrole Alkylation with Unactivated Secondary Alcohols. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209810] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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18
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Han X, Wu J. Redox Chain Reaction-Indole and Pyrrole Alkylation with Unactivated Secondary Alcohols. Angew Chem Int Ed Engl 2013; 52:4637-40. [DOI: 10.1002/anie.201209810] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Revised: 02/05/2013] [Indexed: 11/10/2022]
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19
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Righi M, Topi F, Bartolucci S, Bedini A, Piersanti G, Spadoni G. Synthesis of tryptamine derivatives via a direct, one-pot reductive alkylation of indoles. J Org Chem 2012; 77:6351-7. [PMID: 22724919 DOI: 10.1021/jo3010028] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient, one-pot reductive alkylation of indoles with N-protected aminoethyl acetals in the presence of TES/TFA is reported. It represents the first general method for the direct synthesis of tryptamine derivatives from indoles and nitrogen-functionalized acetals. This convergent and versatile approach employs safe and inexpensive reagents, proceeds under mild conditions, and tolerates several functional groups. The new procedure was efficiently applied to a gram-scale synthesis of both luzindole, a reference MT2-selective melatonin receptor antagonist, and melatonin.
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Affiliation(s)
- Marika Righi
- Department of Biomolecular Sciences, University of Urbino, Piazza Rinascimento 6, 61029 Urbino (PU), Italy
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20
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Cao LL, Li XN, Meng FY, Jiang GF. Pd-catalyzed addition of boronic acids to vinylogous imines: a convenient approach to 3-sec-alkyl substituted indoles. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.056] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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21
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Barbero M, Cadamuro S, Cauda F, Dughera S, Gervasio G, Venturello P. Preparation and Characterization of Aryl or Heteroaryl(3-indolyl)methylium o-Benzenedisulfonimides. J Org Chem 2012; 77:4278-87. [DOI: 10.1021/jo300099y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Margherita Barbero
- Dipartimento di Chimica, Università di Torino, Via P. Giuria 7, 10125
Torino, Italy
| | - Silvano Cadamuro
- Dipartimento di Chimica, Università di Torino, Via P. Giuria 7, 10125
Torino, Italy
| | - Fabrizio Cauda
- Dipartimento di Chimica, Università di Torino, Via P. Giuria 7, 10125
Torino, Italy
| | - Stefano Dughera
- Dipartimento di Chimica, Università di Torino, Via P. Giuria 7, 10125
Torino, Italy
| | - Giuliana Gervasio
- Dipartimento
di Chimica e CrisDi (Centro Interdipartimentale di Cristallografia
Diffrattometrica), Università di Torino, Via P. Giuria 7, 10125 Torino, Italy
| | - Paolo Venturello
- Dipartimento di Chimica, Università di Torino, Via P. Giuria 7, 10125
Torino, Italy
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22
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Affiliation(s)
- Morteza Shiri
- Department of Chemistry, Faculty of Science, Alzahra University, Vanak, Tehran, Iran.
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23
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Liang X, Li S, Su W. Highly stereoselective imidazolethiones mediated Friedel–Crafts alkylation of indole derivatives. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2011.11.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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24
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Cao LL, Ye ZS, Jiang GF, Zhou YG. Rhodium-Catalyzed Addition of Boronic Acids to Vinylogous Imines Generatedin situfrom Sulfonylindoles. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201100577] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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