1
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Kundu S, Maji MS. Solution-Phase Late-Stage Chemoselective Photocatalytic Removal of Sulfonyl and Phenacyl Groups in Peptides. Chemistry 2024; 30:e202400033. [PMID: 38345998 DOI: 10.1002/chem.202400033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Indexed: 03/07/2024]
Abstract
Herein, BPC catalyzed visible-light-triggered target-specific late-stage solution phase desulfonylation from tryptophan in oligopeptides is portrayed by overcoming the isolation issue up to octamers. This robust and mild method is highly predictable and chemoselective, tolerating myriad of functional groups in aza-heteroaromatics and peptides. Interestingly, reductive desulfonylation is also amenable to biologically significant reactive histidine and tyrosine side chains, signifying the versatility of the strategy. Additional efficacy of BPC is demonstrated by solution phase phenacyl deprotection from C-terminal in peptides. Furthermore, excellent catalyst loading of 0.5 mol% and recyclability demonstrate the practical utility and applicability of this strategy.
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Affiliation(s)
- Samrat Kundu
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur, 721302, West Bengal, India
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2
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Meyer ME, Doshi A, Polgar WE, Zaveri NT. Discovery and structure-activity relationships (SAR) of a novel class of 2-substituted N-piperidinyl indole-based nociceptin opioid receptor ligands. Bioorg Med Chem 2023; 92:117421. [PMID: 37573822 PMCID: PMC10491432 DOI: 10.1016/j.bmc.2023.117421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/08/2023] [Accepted: 07/19/2023] [Indexed: 08/15/2023]
Abstract
The development of SAR around substituted N-piperidinyl indole-based nociceptin opioid receptor (NOP) ligands led to the discovery of a novel series of 2-substituted N-piperidinyl indoles that provide both selective NOP full agonists and bifunctional NOP full agonists-μ opioid (MOP) receptor partial agonists. 2-substituted N-piperidinyl indoles have improved potency at the NOP receptor and are NOP full agonists, compared to our previously reported 3-substituted N-piperidinyl indoles that are selective NOP partial agonists. SAR in this series of 2-substituted N-piperidinyl indoles shows that 2-substitution versus 3-substitution on the indole moiety affects their intrinsic activity and opioid receptor selectivity. Molecular docking of these 2-substituted N-piperidinyl indoles in an active-state NOP homology model and MOP receptor structures provides a rationale for the differences observed in the binding, functional profiles and selectivity of 2-substituted versus 3-substituted N-piperidinyl indoles.
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Affiliation(s)
- Michael E Meyer
- Astraea Therapeutics, LLC, 320 Logue Ave, Suite 142, Mountain View, CA 94043, USA
| | - Arpit Doshi
- Astraea Therapeutics, LLC, 320 Logue Ave, Suite 142, Mountain View, CA 94043, USA
| | - Willma E Polgar
- Astraea Therapeutics, LLC, 320 Logue Ave, Suite 142, Mountain View, CA 94043, USA
| | - Nurulain T Zaveri
- Astraea Therapeutics, LLC, 320 Logue Ave, Suite 142, Mountain View, CA 94043, USA.
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3
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Islam K, Bhunia BK, Mandal G, Nag B, Jaiswal C, Mandal BB, Kumar A. Room-Temperature, Copper-Free, and Amine-Free Sonogashira Reaction in a Green Solvent: Synthesis of Tetraalkynylated Anthracenes and In Vitro Assessment of Their Cytotoxic Potentials. ACS OMEGA 2023; 8:16907-16926. [PMID: 37214732 PMCID: PMC10193572 DOI: 10.1021/acsomega.3c00732] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 04/20/2023] [Indexed: 05/24/2023]
Abstract
The multifold Sonogashira coupling of a class of aryl halides with arylacetylene in the presence of an equivalent of Cs2CO3 has been accomplished using a combination of Pd(CH3CN)2Cl2 (0.5 mol %) and cataCXium A (1 mol %) under copper-free and amine-free conditions in a readily available green solvent at room temperature. The protocol was used to transform several aryl halides and alkynes to the corresponding coupled products in good to excellent yields. The rate-determining step is likely to involve the oxidative addition of Ar-X. The green protocol provides access to various valuable polycyclic aromatic hydrocarbons (PAHs) with exciting photophysical properties. Among them, six tetraalkynylated anthracenes have been tested for their anticancer properties on the human triple-negative breast cancer (TNBC) cell line MDA-MB-231 and human dermal fibroblasts (HDFs). The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was performed to find out the IC50 concentration and lethal dose. The compounds being intrinsically fluorescent, their cellular localization was checked by live cell fluorescence imaging. 4',6-Diamidino-2-phenylindole (DAPI) and propidium iodide (PI) staining was performed to check apoptosis and necrosis, respectively. All of these studies have shown that anthracene and its derivatives can induce cell death via DNA damage and apoptosis.
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Affiliation(s)
- Khadimul Islam
- Department
of Chemistry, Indian Institute of Technology
Guwahati, Guwahati 781039, Assam, India
| | - Bibhas K. Bhunia
- Biomaterials
and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Gargi Mandal
- Centre
for Nanotechnology, Indian Institute of
Technology Guwahati, Guwahati 781039, Assam, India
| | - Bedabara Nag
- Department
of Chemistry, Indian Institute of Technology
Guwahati, Guwahati 781039, Assam, India
| | - Chitra Jaiswal
- Biomaterials
and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Biman B. Mandal
- Biomaterials
and Tissue Engineering Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
- Centre
for Nanotechnology, Indian Institute of
Technology Guwahati, Guwahati 781039, Assam, India
- Jyoti
and Bhupat Mehta School of Health Sciences and Technology, 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
- Jyoti
and Bhupat Mehta School of Health Sciences and Technology, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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4
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Nishikawa T, Ono Y, Higuchi K, Yamaguchi M, Sugino K, Nakazaki A, Adachi M. A Convergent Synthesis of Tetracyclic Indole Compounds by a Palladium-Catalyzed Cross-Coupling and Tandem Cyclization Reaction. Synlett 2022. [DOI: 10.1055/s-0042-1751396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
AbstractA new strategy for the convergent synthesis of the ABCD ring system of indole terpene alkaloids has been developed based on a Sonogashira coupling of an o-iodoaniline (the A ring) with an alkyne bearing the D ring. After a tandem palladium-catalyzed cyclization, the tetracyclic ABCD ring structure found in the terpene indole alkaloids was obtained in good yield.
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Affiliation(s)
| | - Yoshiki Ono
- Graduate School of Bioagricultural Sciences, Nagoya University
| | - Keiko Higuchi
- Graduate School of Bioagricultural Sciences, Nagoya University
| | | | - Kumi Sugino
- Graduate School of Bioagricultural Sciences, Nagoya University
| | - Atsuo Nakazaki
- Department of Chemistry and Biological Sciences, Iwate University
| | - Masaatsu Adachi
- Graduate School of Pharmaceutical Sciences, Tohoku University
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5
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Rani M, Utreja D, Sharma S. Role of Indole Derivatives in Agrochemistry: Synthesis and Future Insights. CURR ORG CHEM 2022. [DOI: 10.2174/1385272826666220426103835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Abstract:
Heterocycles constitute a wider class of organic compounds which contribute significantly in every facet of pure and applied chemistry. Indole, one of the bicyclic heterocyclic compounds containing nitrogen atom, witnessed unparalleled biological activity such as antiviral, antibacterial, anticancer, anti-depressant and antifungal activities. Different biological activities exhibited by indole derivatives provide the impulsion to explore its activity against anti-phytopathogenic microbes to save the plants from pests and disease, as food security will once again become a rigid demand. This review mainly focuses on various methods related to the synthesis of indole derivatives and its role in agriculture.
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Affiliation(s)
- Manisha Rani
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Divya Utreja
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Shivali Sharma
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
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6
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Festa A, Raspertov P, Voskressensky L. 2‐(Alkynyl)anilines and derivatives – versatile reagents for heterocyclic synthesis. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alexey Festa
- Peoples' Friendship University of Russia RUSSIAN FEDERATION
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7
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Khandelia T, Ghosh S, Panigrahi P, Shome R, Ghosh SS, Patel BK. Copper(I)-Mediated Cascade Annulation via Dual C-H/C-H Activation: Access to Benzo[ a]carbazolic AEEgens. J Org Chem 2021; 86:16948-16964. [PMID: 34783566 DOI: 10.1021/acs.joc.1c02109] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A Cu(I)-mediated cascade cyclization/annulation of unprotected o-alkynylanilines with maleimides in one pot is developed. The protocol offers sequential formation of one C-N and two C-C bonds to deliver fused benzo[a]carbazoles having free NH skeletons. The annulated products display fluorescence emission in the range of 485-502 nm with a large Stokes shift and fluorescence lifetime of ∼17 ns. The annulated 3aa displays AEE behavior in the ethanol/hexane system and possesses marigold-flower-like morphology at the aggregated state. Cell viability assays enumerate biocompatible AEEgens, while their high intracellular fluorescence depicts cell imaging applicability.
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Affiliation(s)
- Tamanna Khandelia
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwaha, Assam 781039, India
| | - Subhendu Ghosh
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwaha, Assam 781039, India
| | - Pritishree Panigrahi
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwaha, Assam 781039, India
| | - Rajib Shome
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwaha, Assam 781039, India
| | - Siddhartha Sankar Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwaha, Assam 781039, India
| | - Bhisma K Patel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwaha, Assam 781039, India
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8
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Tan E, Montesinos-Magraner M, García-Morales C, Mayans JG, Echavarren AM. Rhodium-catalysed ortho-alkynylation of nitroarenes. Chem Sci 2021; 12:14731-14739. [PMID: 34820088 PMCID: PMC8597868 DOI: 10.1039/d1sc04527j] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 10/11/2021] [Indexed: 12/29/2022] Open
Abstract
The ortho-alkynylation of nitro-(hetero)arenes takes place in the presence of a Rh(iii) catalyst to deliver a wide variety of alkynylated nitroarenes regioselectively. These interesting products could be further derivatized by selective reduction of the nitro group or palladium-catalysed couplings. Experimental and computational mechanistic studies demonstrate that the reaction proceeds via a turnover-limiting electrophilic C-H metalation ortho to the strongly electron-withdrawing nitro group.
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Affiliation(s)
- Eric Tan
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
| | - Marc Montesinos-Magraner
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
| | - Cristina García-Morales
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
| | - Joan Guillem Mayans
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology (BIST) Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica, Universitat Rovira i Virgili C/ Marcel·lí Domingo s/n 43007 Tarragona Spain
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9
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Kamble OS, Khatravath M, Dandela R. Applications of Ethynylanilines as Substrates for Construction of Indoles and Indole‐Substituted Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202101437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Omkar S. Kamble
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology Indian oil Odisha Campus, Kharagpur extension Centre, Mouza, Samantpuri Bhubaneswar 751013 Odisha India
| | - Mahender Khatravath
- Department of Chemistry Central university of South Bihar, Gaya SH-7, Panchanpur Road, Karhara, Post Fatehpur, Gaya Bihar 824236 India
| | - Rambabu Dandela
- Department of Industrial and Engineering Chemistry Institute of Chemical Technology Indian oil Odisha Campus, Kharagpur extension Centre, Mouza, Samantpuri Bhubaneswar 751013 Odisha India
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10
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Sujeevan Reddy G, Sandeep Kumar J, Thirupataiah B, Amirul Hossain K, Babu Nallapati S, Bhat Giliyaru V, Chandrashekhar Hariharapura R, Gautham Shenoy G, Pal M. Propargylamines in Pd/Cu-catalyzed tandem coupling-cyclization-N-deprotection in a single pot: Construction of N-unsubstituted vs N-sulfonyl indole ring. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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11
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Xia Z, Huang R, Zhou X, Chai Y, Chen H, Ma L, Yu Q, Li Y, Li W, He Y. The synthesis and bioactivity of pyrrolo[2,3-d]pyrimidine derivatives as tyrosine kinase inhibitors for NSCLC cells with EGFR mutations. Eur J Med Chem 2021; 224:113711. [PMID: 34315040 DOI: 10.1016/j.ejmech.2021.113711] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 07/16/2021] [Accepted: 07/17/2021] [Indexed: 02/05/2023]
Abstract
EGFR mutations are an ongoing challenge in the treatment of NSCLC, and demand continuous updating of EGFR TKI drug candidates. Pyrrolopyrimidines are one group of versatile scaffolds suitable for tailored drug development. However not many precedents of this type of pharmacophore have been investigated in the realm of third generation of covalent EGFR-TKIs. Herein, a series of pyrrolo[2,3-d]pyrimidine derivatives able to block mutant EGFR activity in a covalent manner were synthesized, through optimized Buchwald-Hartwig C-N cross coupling reactions. Their preliminary bioactivity and corresponding inhibitory mechanistic pathways were investigated at molecular and cellular levels. Several compounds exhibited increased biological activity and enhanced selectivity compared to the control compound. Notably, compound 12i selectively inhibits HCC827 cells harboring the EGFR activating mutation with up to 493-fold increased efficacy compared to in normal HBE cells. Augmented selectivity was also confirmed by kinase enzymatic assay, with the test compound selectively inhibiting the T790 M activating mutant EGFRs (IC50 values of 0.21 nM) with up to 104-fold potency compared to the wild-type EGFR (IC50 values of 22 nM). Theoretical simulations provide structural evidence of selective kinase inhibitory activity. Thus, this series of pyrrolo[2,3-d]pyrimidine derivatives could serve as a starting point for the development of new EGFR-TKIs.
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Affiliation(s)
- Zhenqiang Xia
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China
| | - Ridong Huang
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China
| | - Xinglong Zhou
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China
| | - Yingying Chai
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China
| | - Hai Chen
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China
| | - Lingling Ma
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China
| | - Quanwei Yu
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China
| | - Ying Li
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China
| | - Weimin Li
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China.
| | - Yang He
- Department of Respiratory and Critical Care Medicine, Targeted Tracer Research and Development Laboratory, West China Hospital, Sichuan University, Chengdu, Sichuan, 610093, PR China; Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, Sichuan, 610041, PR China; Precision Medicine Research Center, West China Hospital, Sichuan University, Chengdu, Sichuan, 610044, PR China.
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12
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Siciliano S, Cini E, Taddei M, Vinciarelli G. Synthesis of 2-Substitued Indoles via Pd-Catalysed Cyclization in an Aqueous Micellar Medium. Molecules 2021; 26:3917. [PMID: 34206877 PMCID: PMC8271580 DOI: 10.3390/molecules26133917] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 06/21/2021] [Accepted: 06/23/2021] [Indexed: 11/24/2022] Open
Abstract
The synthesis of 2-substituted indoles starting from the corresponding unprotected 2-alkynylanilines was made possible in 3% TPGS-750-M water using Pd(OAc)2 alone as the catalyst. The reaction was sensitive to the heating mode respect to the nature of the starting material as, in many cases, convectional heating was better than microwave dielectric heating. The MW (microwave) delivery mode had also an influence in the formation of by-products and, consequently, product yields. A tandem Sonogashira-cyclisation reaction was also accomplished using Pd(OAc)2/Xphos in the nanomicellar water environment.
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Affiliation(s)
| | | | - Maurizio Taddei
- Dipartimento di Biotecnologie, Chimica e Farmacia, Università degli Studi di Siena, Via A. Moro 2, 53100 Siena, Italy; (S.S.); (E.C.); (G.V.)
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13
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Li S, Wang Z, Xiao H, Bian Z, Wang JJ. Enantioselective synthesis of indole derivatives by Rh/Pd relay catalysis and their anti-inflammatory evaluation. Chem Commun (Camb) 2021; 56:7573-7576. [PMID: 32510073 DOI: 10.1039/d0cc03158e] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
An efficient Rh/Pd relay catalyzed intermolecular and cascade intramolecular hydroamination for the synthesis of exclusive trans 1-indolyl dihydronaphthalenols (up to 88% yield, 99% ee) is described under mild conditions. Moreover, the in silico and in vitro screening showed that the novel 1-indolyl dihydronaphthalenol products are potent lead compounds for treating inflammation disease.
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Affiliation(s)
- Sifeng Li
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China. and School of Chinese Medicine, Hong Kong Baptist University, Hong Kong.
| | - Zihao Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China. and School of Chinese Medicine, Hong Kong Baptist University, Hong Kong.
| | - Haitao Xiao
- School of Pharmaceutical Sciences, Health Science Center, Shenzhen University, Shenzhen 518066, China
| | - Zhaoxiang Bian
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong.
| | - Jun Joelle Wang
- Department of Chemistry, Southern University of Science and Technology, Shenzhen 518055, China.
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14
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Fang X, Cao J, Ding W, Jin H, Yu X, Wang S. Copper-Catalyzed Aerobic Oxidative Cyclization of 2-Alkynylanilines with Nitrosoarenes: Synthesis of Organic Solid Mechanoluminescence Compounds of 4-Oxo-4 H-cinnolin-2-ium-1-ide. Org Lett 2021; 23:1228-1233. [PMID: 33522243 DOI: 10.1021/acs.orglett.0c04186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient Cu(I)/DMAP/air system for the one-pot synthesis of 4-oxo-4H-cinnolin-2-ium-1-ides, which are often difficult to prepare by traditional routes from substituted 2-alkynylanilines and nitrosoarenes, was developed. These 4-oxo-4H-cinnolin-2-ium-1-ides have practical applications as mechanoluminescent materials. Preliminary mechanistic experiments were performed, and a plausible mechanism for this tandem process is proposed. The use of an inexpensive copper catalyst and molecular oxygen as the oxygen source and the oxidant make this an attractive green protocol with potential synthetic applications.
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Affiliation(s)
- Xiaolan Fang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
| | - Ji Cao
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
| | - Weijie Ding
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
| | - Huile Jin
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
| | - Xiaochun Yu
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
| | - Shun Wang
- College of Chemistry & Materials Engineering, Wenzhou University, Wenzhou, 325035, P. R. China
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15
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Wang G, Li JC, Zhou YG, Ye ZS. Enantioselective Synthesis of Indole-Fused Bicyclo[3.2.1]octanes via Palladium(II)-Catalyzed Cascade Reaction. Org Lett 2021; 23:802-807. [PMID: 33464091 DOI: 10.1021/acs.orglett.0c04030] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Indole-fused bicyclo[3.2.1]octanes are highly important structural units in natural products and biologically active compounds. However, there has been limited success in the enantioselective synthesis of these skeletons due to the complexity of the structure and the control of the enantioselectivity. Herein an enantioselective construction of indole-fused bicyclo[3.2.1]octanes bearing an all-carbon quaternary bridgehead stereocenter was developed via an aminopalladition-triggered Heck-type reaction. The protocol features mild conditions and good tolerance for a wide range of functional groups. The transformation can also be scaled up to demonstrate its practicability. The mechanistic studies reveal that the formation of an intermediate indol-3-yl palladium species via C-H activation should be ruled out.
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Affiliation(s)
- Gang Wang
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Jin-Chen Li
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
| | - Yong-Gui Zhou
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.,State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, P. R. China
| | - Zhi-Shi Ye
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China
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16
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Kaur J, Utreja D, Ekta, Jain N, Sharma S. Recent Developments in the Synthesis and Antimicrobial Activity of Indole and its Derivatives. Curr Org Synth 2020; 16:17-37. [PMID: 31965921 DOI: 10.2174/1570179415666181113144939] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 10/03/2018] [Accepted: 10/12/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Heterocyclic compounds containing nitrogen have been known to possess a very important role in the field of medicinal chemistry. Indole and its derivatives displayed a wide range of biological properties such as anti-inflammatory, analgesic, anti-microbial, anti-convulsant, antidepressant, anti-diabetic, antihelmintic and anti-allergic activities etc. The diverse biological activities exhibited by compounds containing indole moiety has provided the impetus to explore its anti-microbial activity in order to save the valuable life of patients. OBJECTIVE The review focuses on the advances in the synthesis of indole derivatives and antimicrobial properties exhibited by them. CONCLUSION A great deal of work has been done in order to synthesize indole derivatives and to evaluate antimicrobial potential, as indicated by the review. The information provided in this article may be helpful for the researchers for the development of efficient antimicrobial drugs.
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Affiliation(s)
- Jaskirat Kaur
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Divya Utreja
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Ekta
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Nisha Jain
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
| | - Shivali Sharma
- Department of Chemistry, Punjab Agricultural University, Ludhiana 141004, India
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17
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Nickel-Catalyzed Arylative Additions on 2-Alkynyl-N
-Arylsulfonylanilides to Construct Functionalized Indoles. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901835] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Ling F, Song D, Chen L, Liu T, Yu M, Ma Y, Xiao L, Xu M, Zhong W. Syntheses of N-Alkyl 2-Arylindoles from Saturated Ketones and 2-Arylethynylanilines via Cu-Catalyzed Sequential Dehydrogenation/Aza-Michael Addition/Annulation Cascade. J Org Chem 2020; 85:3224-3233. [DOI: 10.1021/acs.joc.9b03091] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Fei Ling
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Dingguo Song
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Linlin Chen
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Tao Liu
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Mengyao Yu
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yan Ma
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Lian Xiao
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
| | - Min Xu
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, Zhejiang University of Technology, Hangzhou 310014, China
| | - Weihui Zhong
- Key Laboratory for Green Pharmaceutical Technologies and Related Equipment of Ministry of Education, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou 310014, China
- Institute of Pharmaceutical Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
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19
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Yuan S, Zhang DQ, Zhang JY, Yu B, Liu HM. Palladium-Catalyzed Ligand-Free Double Cyclization Reactions for the Synthesis of 3-(1′-Indolyl)-phthalides. Org Lett 2020; 22:814-817. [DOI: 10.1021/acs.orglett.9b04241] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Shuo Yuan
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Dan-Qing Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Jing-Ya Zhang
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Bin Yu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Hong-Min Liu
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
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20
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Yuan B, Wan J, Guo X, Gong Y, Zhang F, Li Q, Wang G, Chen J, He R. Theoretical investigation on the Cu(i)-catalyzed N-carboxamidation of indoles with isocyanates to form indole-1-carboxamides: effects of solvents. NEW J CHEM 2020. [DOI: 10.1039/d0nj01116a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The solvents act as the hydrogen-bond acceptor to facilitate intermolecular addition, and then play the proton-shuttle to assist H1+-shift. The stronger electron-donating property of solvent is favorable for the present Cu(i)-catalyzed reactions.
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Affiliation(s)
- Binfang Yuan
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Jingwei Wan
- Department of Criminal Science and Technology
- Railway Police College
- Zhengzhou
- China
| | - Xiaogang Guo
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Yongmi Gong
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Fulan Zhang
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Qing Li
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Guangzhao Wang
- Key Laboratory of Micro Nano Optoelectronic Devices and Intelligent Perception Systems
- Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing
- School of Electronic Information Engineering
- Yangtze Normal University
- Chongqing 408100
| | - Jinyang Chen
- Chongqing Key Laboratory of Inorganic Special Functional Materials
- College of Chemistry and Chemical Engineering
- Yangtze Normal University
- Chongqing 408100
- China
| | - Rongxing He
- College of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- China
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21
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Peng L, Li K, Xie C, Li S, Xu D, Qin W, Yan H. Organocatalytic Asymmetric Annulation of
ortho
‐Alkynylanilines: Synthesis of Axially Chiral Naphthyl‐C2‐indoles. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908961] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Chuandong Xie
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Shan Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Da Xu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
- Key Laboratory of Biorheological Science and TechnologyMinistry of EducationCollege of BioengineeringChongqing University Chongqing 400044 China
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22
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Peng L, Li K, Xie C, Li S, Xu D, Qin W, Yan H. Organocatalytic Asymmetric Annulation of
ortho
‐Alkynylanilines: Synthesis of Axially Chiral Naphthyl‐C2‐indoles. Angew Chem Int Ed Engl 2019; 58:17199-17204. [DOI: 10.1002/anie.201908961] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 08/27/2019] [Indexed: 12/23/2022]
Affiliation(s)
- Lei Peng
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Kai Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Chuandong Xie
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Shan Li
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Da Xu
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Wenling Qin
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
| | - Hailong Yan
- Chongqing Key Laboratory of Natural Product Synthesis and Drug ResearchChemical Biology Research CenterSchool of Pharmaceutical SciencesChongqing University Chongqing 401331 P. R. China
- Key Laboratory of Biorheological Science and TechnologyMinistry of EducationCollege of BioengineeringChongqing University Chongqing 400044 China
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23
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Li W, Usman M, Wu LY, Liu WB. Synthesis of 2,3-Ring Fused Pyrroles via Cu-Catalyzed 5- exo-dig Annulation of Alkyne-Tethered Enaminones. J Org Chem 2019; 84:15754-15763. [PMID: 31696709 DOI: 10.1021/acs.joc.9b02672] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A copper-catalyzed annulation of alkyne-tethered enaminones for the synthesis of 2,3-ring fused pyrroles is reported. The 5-exo-dig cyclization/olefin migration reaction delivers the multisubstituted pyrroles in 59-99% yields with 16 examples. This strategy features easily available starting materials, mild reaction conditions, and a cheap ligand-free copper catalyst. The atom-economic transformation provides a simple access to a variety of synthetic useful pyrroles and their derivatives.
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Affiliation(s)
- Weishuang Li
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China.,Sauvage Center for Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China
| | - Muhammad Usman
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China.,Sauvage Center for Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China
| | - Lin-Yang Wu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China.,Sauvage Center for Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China
| | - Wen-Bo Liu
- Engineering Research Center of Organosilicon Compounds & Materials, Ministry of Education, College of Chemistry and Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China.,Sauvage Center for Molecular Sciences , Wuhan University , Wuhan , Hubei 430072 , China
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24
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Jain P, Utreja D, Sharma P. An efficacious synthesis of N‐1–, C‐3–substituted indole derivatives and their antimicrobial studies. J Heterocycl Chem 2019. [DOI: 10.1002/jhet.3799] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Palak Jain
- Department of ChemistryPunjab Agricultural University Ludhiana India
| | - Divya Utreja
- Department of ChemistryPunjab Agricultural University Ludhiana India
| | - Poonam Sharma
- Department of Plant Breeding and GeneticsPunjab Agricultural University Ludhiana India
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25
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Chen J, Hu L, Wang H, Liu L, Yuan B. Copper(I)-Catalyzed N
-Carboxamidation of Indoles with Isocyanates: Facile and General Method for the Synthesis of Indole-1-carboxamides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900487] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jinyang Chen
- Chongqing Key Laboratory of Inorganic Special Functional Materials; College of Chemistry and Chemical Engineering; Yangtze Normal University; Fuling, Chongqing 408000 P. R. China
| | - Li Hu
- Chongqing Key Laboratory of Inorganic Special Functional Materials; College of Chemistry and Chemical Engineering; Yangtze Normal University; Fuling, Chongqing 408000 P. R. China
| | - Haiying Wang
- Chongqing Key Laboratory of Inorganic Special Functional Materials; College of Chemistry and Chemical Engineering; Yangtze Normal University; Fuling, Chongqing 408000 P. R. China
| | - Lingrong Liu
- Chongqing Key Laboratory of Inorganic Special Functional Materials; College of Chemistry and Chemical Engineering; Yangtze Normal University; Fuling, Chongqing 408000 P. R. China
| | - Binfang Yuan
- Chongqing Key Laboratory of Inorganic Special Functional Materials; College of Chemistry and Chemical Engineering; Yangtze Normal University; Fuling, Chongqing 408000 P. R. China
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26
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27
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Rong Z, Gao K, Zhou L, Lin J, Qian G. Facile synthesis of 2-substituted benzo[b]furans and indoles by copper-catalyzed intramolecular cyclization of 2-alkynyl phenols and tosylanilines. RSC Adv 2019; 9:17975-17978. [PMID: 35520559 PMCID: PMC9064688 DOI: 10.1039/c9ra01260e] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 04/19/2019] [Indexed: 01/22/2023] Open
Abstract
A catalytic amount of CuCl and Cs2CO3 was employed to synthesize a variety of 2-substituted benzo[b]furans and indoles by an intramolecular cyclization of 2-alkynyl phenols and tosylanilines. This protocol features mild conditions, high yields and broad substrate scope, which makes it a practical method for the synthesis of 2-substituted benzo[b]furans and indoles. A facile and inexpensive copper-catalyzed method was developed for the synthesis of 2-substituted benzo[b]furans and indoles.![]()
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Affiliation(s)
- Zhouting Rong
- College of Biological and Environmental Sciences
- Zhejiang Wanli University
- Ningbo 315100
- People's Republic of China
| | - Kexin Gao
- College of Biological and Environmental Sciences
- Zhejiang Wanli University
- Ningbo 315100
- People's Republic of China
| | - Lei Zhou
- College of Biological and Environmental Sciences
- Zhejiang Wanli University
- Ningbo 315100
- People's Republic of China
| | - Jianyuan Lin
- College of Biological and Environmental Sciences
- Zhejiang Wanli University
- Ningbo 315100
- People's Republic of China
| | - Guoying Qian
- College of Biological and Environmental Sciences
- Zhejiang Wanli University
- Ningbo 315100
- People's Republic of China
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28
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Sujeevan Reddy G, Babu Nallapati S, Sri Saranya P, Sridhar B, Bhat Giliyaru V, Chandrashekhar Hariharapura R, Gautham Shenoy G, Pal M. Propargylamine (secondary) as a building block in indole synthesis involving ultrasound assisted Pd/Cu-catalyzed coupling-cyclization method: Unexpected formation of (pyrazole)imine derivatives. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.11.037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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29
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Zhao X, Li Q, Xu J, Wang D, Zhang-Negrerie D, Du Y. Cascade Synthesis of Benzothieno[3,2-b]indoles under Oxidative Conditions Mediated by CuBr and tert-Butyl Hydroperoxide. Org Lett 2018; 20:5933-5937. [DOI: 10.1021/acs.orglett.8b02614] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiaoyuan Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Qiao Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jun Xu
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Donghua Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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30
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Hasegawa E, Nagakura Y, Izumiya N, Matsumoto K, Tanaka T, Miura T, Ikoma T, Iwamoto H, Wakamatsu K. Visible Light and Hydroxynaphthylbenzimidazoline Promoted Transition-Metal-Catalyst-Free Desulfonylation of N-Sulfonylamides and N-Sulfonylamines. J Org Chem 2018; 83:10813-10825. [DOI: 10.1021/acs.joc.8b01536] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Eietsu Hasegawa
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Yuto Nagakura
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Norihiro Izumiya
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Keisuke Matsumoto
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Tsukasa Tanaka
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Tomoaki Miura
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Tadaaki Ikoma
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
- Center for Coordination of Research Facilities, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Hajime Iwamoto
- Department of Chemistry, Faculty of Science, Niigata University, 8050 Ikarashi-2, Nishi-ku, Niigata 950-2181, Japan
| | - Kan Wakamatsu
- Department of Chemistry, Faculty of Science, Okayama University of Science, 1-1 Ridaicho, Kita-ku, Okayama 700-0005, Japan
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31
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Ogunlana AA, Zou J, Bao X. Computational insights into the mechanisms of Ru-catalyzed cycloisomerization of 2-ethynylaniline and 2-(2-propynyl)tosylanilide: The role of pyridine in assisting the metal-vinylidene formation. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.03.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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32
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33
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Hasegawa E, Izumiya N, Miura T, Ikoma T, Iwamoto H, Takizawa SY, Murata S. Benzimidazolium Naphthoxide Betaine Is a Visible Light Promoted Organic Photoredox Catalyst. J Org Chem 2018. [PMID: 29537851 DOI: 10.1021/acs.joc.8b00282] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Benzimidazolium naphthoxide (-ONap-BI+) was first synthesized and utilized as an unprecedented betaine photoredox catalyst. Photoexcited state of -ONap-BI+ generated by visible light irradiation catalyzes the reductive deiodination as well as desulfonylation reactions in which 1,3-dimethyl-2-phenylbenzimidazoline (Ph-BIH) cooperates with as an electron and hydrogen atom donor. Significant solvent effects on the reaction progress were discovered, and specific solvation toward imidazolium and naphthoxide moieties of -ONap-BI+ was proposed.
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Affiliation(s)
- Eietsu Hasegawa
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Norihiro Izumiya
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Tomoaki Miura
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Tadaaki Ikoma
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan.,Center for Coordination of Research Facilities , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Hajime Iwamoto
- Department of Chemistry, Faculty of Science , Niigata University , 8050 Ikarashi-2 , Nishi-ku, Niigata 950-2181 , Japan
| | - Shin-Ya Takizawa
- Department of Basic Science, Graduate School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902 , Japan
| | - Shigeru Murata
- Department of Basic Science, Graduate School of Arts and Sciences , The University of Tokyo , 3-8-1 Komaba , Meguro-ku, Tokyo 153-8902 , Japan
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34
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Seath CP, Wilson KL, Campbell A, Mowat JM, Watson AJB. Synthesis of 2-BMIDA 6,5-bicyclic heterocycles by Cu(i)/Pd(0)/Cu(ii) cascade catalysis of 2-iodoaniline/phenols. Chem Commun (Camb) 2018; 52:8703-6. [PMID: 27331350 DOI: 10.1039/c6cc04554e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A one-pot cascade reaction for the synthesis of 2-BMIDA 6,5-bicyclic heterocycles has been developed using Cu(i)/Pd(0)/Cu(ii) catalysis. 2-Iodoanilines and phenols undergo a Cu(i)/Pd(0)-catalyzed Sonogashira reaction with ethynyl BMIDA followed by in situ Cu(ii)-catalyzed 5-endo-dig cyclization to generate heterocyclic scaffolds with a BMIDA functional group in the 2-position. The method provides efficient access to borylated indoles, benzofurans, and aza-derivatives, which can be difficult to access through alternative methods.
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Affiliation(s)
- Ciaran P Seath
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, UK.
| | - Kirsty L Wilson
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, UK.
| | - Angus Campbell
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, UK.
| | - Jenna M Mowat
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, UK.
| | - Allan J B Watson
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral St., Glasgow, G1 1XL, UK.
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35
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Jillella R, Oh DH, Oh CH. Gold-catalyzed tandem reaction of 2-alkynylanilines followed by 1,6-conjugate addition to p-quinone methides: efficient access to unsymmetrical diarylindolylmethanes. NEW J CHEM 2018. [DOI: 10.1039/c8nj03955k] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
A simple, mild, efficient and chemoselective catalytic method for the straightforward synthesis of an interesting class of 2-aryl/alkyl-substituted-3-diaryl indolyl methanes in high yield is reported.
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Affiliation(s)
- Raveendra Jillella
- Department of Chemistry and Research Institute of Natural Science
- Hanyang University
- Seoul 04763
- South Korea
| | - Dong hwan Oh
- Department of Chemistry and Research Institute of Natural Science
- Hanyang University
- Seoul 04763
- South Korea
| | - Chang Ho Oh
- Department of Chemistry and Research Institute of Natural Science
- Hanyang University
- Seoul 04763
- South Korea
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36
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Jillella R, Oh CH. Copper-catalyzed tandem reaction of 2-alkynylanilines with benzoquinones: efficient access to 3-indolylquinones. RSC Adv 2018; 8:22122-22126. [PMID: 35541709 PMCID: PMC9081399 DOI: 10.1039/c8ra03712d] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/04/2018] [Indexed: 11/21/2022] Open
Abstract
A simple, mild, catalytic and efficient method for the straightforward synthesis of an interesting class of 2-aryl/alkyl-substituted-3-indolyl quinones in good to high yields is reported for the first time. This atom-efficient method proceeds via copper-catalyzed one-pot sequential intramolecular hydroamination (C–N bond formation) of 2-alkynylanilines followed by oxidative C–C coupling with benzoquinones. Copper-catalyzed domino cyclization of 2-alkynylanilines followed by C–C bond formation with quinones is an efficient method of accessing 3-indolyl quinones.![]()
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Affiliation(s)
- Raveendra Jillella
- Department of Chemistry and Research Institute of Natural Science
- Hanyang University
- Seoul 04763
- South Korea
| | - Chang Ho Oh
- Department of Chemistry and Research Institute of Natural Science
- Hanyang University
- Seoul 04763
- South Korea
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37
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Bujok R, Wiszniewski M, Cmoch P, Wróbel Z. A general and convenient method for the synthesis of 2,4-dinitrobenzyl ketones. Almost unlimited access to 2-substituted 6-nitroindoles from 2,4-dinitrotoluene and aldehydes. NEW J CHEM 2018. [DOI: 10.1039/c7nj04919f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Starting from 2,4-dinitrotoluene and aldehydes, 2-substituted 6-nitroindoles with alkyl, cycloalkyl, aryl and heteroaryl (thienyl, furyl, pyridyl) substituents in the 2-position of the indole ring were synthesized. This methodology can be used for synthesis of indoles with non-racemic substituents.
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Affiliation(s)
- Robert Bujok
- Institute of Organic Chemistry, Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Marcin Wiszniewski
- Faculty of Chemistry, Warsaw University of Technology
- 00-664 Warsaw
- Poland
| | - Piotr Cmoch
- Institute of Organic Chemistry, Polish Academy of Sciences
- 01-224 Warsaw
- Poland
| | - Zbigniew Wróbel
- Institute of Organic Chemistry, Polish Academy of Sciences
- 01-224 Warsaw
- Poland
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38
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Saito K, Yoshida M, Uekusa H, Doi T. Facile Synthesis of Pyrrolyl 4-Quinolinone Alkaloid Quinolactacide by 9-AJ-Catalyzed Tandem Acyl Transfer-Cyclization of o-Alkynoylaniline Derivatives. ACS OMEGA 2017; 2:4370-4381. [PMID: 31457730 PMCID: PMC6641763 DOI: 10.1021/acsomega.7b00793] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Accepted: 07/24/2017] [Indexed: 06/10/2023]
Abstract
The synthesis of pyrrolyl 4-quinolinone alkaloid, quinolactacide, and its analogues was successfully achieved using 9-azajulolidine (9-AJ)-catalyzed tandem acyl transfer-regioselective cyclization of N,N-diacyl-o-alkynoylaniline derivatives. In addition, this organocatalytic reaction was successfully utilized for the synthesis of a variety of 3-acyl-4-quinolinones in moderate-to-good yields. Mechanistic studies, including a time course nuclear magnetic resonance (NMR) experiment, indicated that the 1,4-addition of 9-AJ to an ynone system can be considered to be the rate-determining step in this quinolinone synthesis.
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Affiliation(s)
- Koya Saito
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-Aoba,
Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Masahito Yoshida
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-Aoba,
Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Hidehiro Uekusa
- Department
of Chemistry, School of Science, Tokyo Institute
of Technology, Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Takayuki Doi
- Graduate
School of Pharmaceutical Sciences, Tohoku
University, 6-3 Aza-Aoba,
Aramaki, Aoba-ku, Sendai 980-8578, Japan
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39
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Facile synthesis of indoles by K 2 CO 3 catalyzed cyclization reaction of 2-ethynylanilines in water. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2016.07.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Li H, Cheng P, Jiang L, Yang JL, Zu L. Bio-Inspired Fragmentations: Rapid Assembly of Indolones, 2-Quinolinones, and (−)-Goniomitine. Angew Chem Int Ed Engl 2017; 56:2754-2757. [PMID: 28128515 DOI: 10.1002/anie.201611830] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Revised: 01/15/2017] [Indexed: 01/01/2023]
Affiliation(s)
- Haokun Li
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Peng Cheng
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
| | - Long Jiang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Jin-Liang Yang
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
| | - Liansuo Zu
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
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41
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Li H, Cheng P, Jiang L, Yang JL, Zu L. Bio-Inspired Fragmentations: Rapid Assembly of Indolones, 2-Quinolinones, and (−)-Goniomitine. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611830] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Haokun Li
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Peng Cheng
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
| | - Long Jiang
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
| | - Jin-Liang Yang
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
| | - Liansuo Zu
- School of Pharmaceutical Sciences; Tsinghua University; Beijing 100084 China
- Collaborative Innovation Center for Biotherapy; West China Medical School; Sichuan University; Chengdu 610041 China
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42
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Chung MC, Chan YH, Chang WJ, Hou DR. Synthesis of 2,3-dihydro-1H-pyrroles by intramolecular cyclization of N-(3-butynyl)-sulfonamides. Org Biomol Chem 2017; 15:3783-3790. [DOI: 10.1039/c7ob00528h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hydroamination of 3-butynamine derivatives to give non-aromatic 2,3-dihydropyrroles was achieved by using PdCl2 or AuCl as the catalyst.
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Affiliation(s)
- Min-Ching Chung
- Department of Chemistry
- National Central University
- Jhong-li
- Taiwan
| | - Yung-Hsiang Chan
- Department of Chemistry
- National Central University
- Jhong-li
- Taiwan
| | - Wen-Jung Chang
- Department of Chemistry
- National Central University
- Jhong-li
- Taiwan
| | - Duen-Ren Hou
- Department of Chemistry
- National Central University
- Jhong-li
- Taiwan
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43
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Visible light-promoted reductive transformations of various organic substances by using hydroxyaryl-substituted benzimidazolines and bases. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.05.078] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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44
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Minami H, Kanayama T, Tanaka R, Okamoto N, Sueda T, Yanada R. Regioselective Arylative Ring-Closing Reaction of 2-Alkynylphenyl Derivatives: Formation of Arylated Benzoxazin-2-ones, Benzoxazin-2-amines and 2,3-Disubstituted Indoles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201601162] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Hideki Minami
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Takuya Kanayama
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Reishi Tanaka
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Noriko Okamoto
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Takuya Sueda
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
| | - Reiko Yanada
- Faculty of Pharmaceutical Sciences; Hiroshima International University; 5-1-1 Hirokoshingai 737-0112 Kure, Hiroshima Japan
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45
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Li G, Zhou G, Zhang-Negrerie D, Du Y, Huang J, Zhao K. Palladium(II) Acetate-Catalyzed Dual C-H Functionalization and C-C Bond Formation: A Domino Reaction for the Synthesis of Functionalized (E)-Bisindole-2-ones from Diarylbut-2-ynediamides. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600767] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Guangchen Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
| | - Guangshuai Zhou
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
| | - Jianhui Huang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300072 People's Republic of China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology; Tianjin University; Tianjin 300072 People's Republic of China
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46
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Zhang X, Zhou G, Zhang Y, Zhang-Negrerie D, Du Y, Zhao K. Ring-Contraction Disproportionation/Spirocyclization Cascade Reaction of Isochromeno[4,3-b]indol-5(11H)-ones: Synthesis of N-Unsubstituted Spirocycles. J Org Chem 2016; 81:11397-11403. [DOI: 10.1021/acs.joc.6b01957] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiang Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Guangshuai Zhou
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yong Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Daisy Zhang-Negrerie
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Kang Zhao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
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47
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48
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Yu J, Zhang-Negrerie D, Du Y. Cu(OAc)2-Mediated Cascade Annulation of Diarylalkyne Sulfonamides through Dual C–N Bond Formation: Synthesis of 5,10-Dihydroindolo[3,2-b]indoles. Org Lett 2016; 18:3322-5. [DOI: 10.1021/acs.orglett.6b01343] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junchao Yu
- School
of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Daisy Zhang-Negrerie
- School
of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Yunfei Du
- School
of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
- Collaborative
Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, P. R. China
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49
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Asymmetric Assisted Tandem Catalysis: Hydroamination followed by Asymmetric Friedel-Crafts Reaction from a Single ChiralN,N,N′,N′-Tetradentate Pyridylmethylamine-Based Ligand. ChemCatChem 2016. [DOI: 10.1002/cctc.201600604] [Citation(s) in RCA: 16] [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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50
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Ikeda A, Omote M, Kusumoto K, Komori M, Tarui A, Sato K, Ando A. A dramatic enhancing effect of InBr3 towards the oxidative Sonogashira cross-coupling reaction of 2-ethynylanilines. Org Biomol Chem 2016; 14:2127-33. [PMID: 26782816 DOI: 10.1039/c5ob02558c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The addition of InBr3 to the oxidative Sonogashira cross-coupling reaction of 2-ethynylaniline with (E)-trimethyl(3,3,3-trifluoroprop-1-enyl)silane led to a dramatic increase in the reactivity to afford the corresponding 1,3-enynes bearing a trifluoromethyl group on their terminal sp(2) carbon. The subsequent cyclization of these 1,3-enynes under palladium catalysis provides access to the corresponding indoles bearing a 3,3,3-trifluoroprop-1-enyl group at their 2-position.
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Affiliation(s)
- A Ikeda
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - M Omote
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - K Kusumoto
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - M Komori
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - A Tarui
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - K Sato
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
| | - A Ando
- Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan.
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