1
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Kumar K, Kumar Sahani R, Garai S, Bhattacharya S. Synthesis and structural features of indium(III) furan-2-thiocarboxylates showing efficient catalytic activity toward multicomponent reactions via Knoevenagel condensation. Dalton Trans 2023; 52:17499-17513. [PMID: 37960984 DOI: 10.1039/d3dt02681g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
A series of furan-2-thiocarboxylate complexes of indium(III), Et3NH[In(SCOf)4] (1), iPr2NH2[In(SCOf)4] (2), [In(2,2'-bipy)(SCOf)3] (3a), and [In(1,10-phen)(SCOf)3] (3b), have been synthesized and structurally characterized. Complex 4, [In(TMEDA)(SCOf)(SH)2], was obtained by the partial hydrolysis of [In(TMEDA)(SCOf)3] (3). Heterobimetallic complexes [(SCOf)2In(μ-SCOf)2Cu(PPh3)2] (5) and [(SCOf)2In(μ-SCOf)2Ag(PPh3)2] (6), were also synthesized and characterized. In an attempt to synthesize the binary compound, In(SCOf)3 (7), a thioester fCOSCH2SCOf (8) was obtained serendipitously; thus, a novel convenient approach for thioester synthesis is introduced. The catalytic activities of all the complexes were assessed for Knoevenagel condensation and Knoevenagel initiated MCRs for the synthesis of chromene and imidazopyrimidine derivatives and it was found that complex 2 is a very efficient catalyst (much superior to the previously reported ones).
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Affiliation(s)
- Krishna Kumar
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Raj Kumar Sahani
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Somenath Garai
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
| | - Subrato Bhattacharya
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-221005, India.
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2
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Indium-mediated 1,2-addition of iododifluoromethyl ketones with α, β-unsaturated ketones. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Selvarani V, Kiruthika S, Gayathri A, Pournan L, V.Sudha, Muthukumaran B. Enhanced electrochemical performance of Pt–Sn–In/C nanoparticles for membraneless fuel cells. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01598-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Millán RE, Rodríguez J, Sarandeses LA, Gómez-Bengoa E, Sestelo JP. Indium(III)-Catalyzed Stereoselective Synthesis of Tricyclic Frameworks by Cascade Cycloisomerization Reactions of Aryl 1,5-Enynes. J Org Chem 2021; 86:9515-9529. [PMID: 34170696 DOI: 10.1021/acs.joc.1c00825] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The indium(III)-catalyzed cascade cycloisomerization reaction of 1,5-enynes with pendant aryl nucleophiles is reported. The reaction proceeds in cascade under mild reaction conditions, using InI3 (5 mol %) as a catalyst with a range of 1,5-enynes furnished with aryl groups (phenyl and phenol) at alkene (E and Z isomers) and with terminal and internal alkynes. Using 1-bromo-1,5-enynes, a one-pot sequential indium-catalyzed cycloisomerization and palladium-catalyzed cross-coupling with triorganoindium reagents were developed. The double cyclization is stereospecific and operates via a biomimetic cascade cation-olefin through 1,5-enyne cyclization (6-endo-dig) and subsequent C-C hydroarylation or C-O phenoxycyclization. Density functional theory (DFT) computational studies on 1,5-enynyl aryl ethers support a two-step mechanism where the first stereoselective 1,5-enyne cyclization produces a nonclassical carbocation intermediate that evolves to the tricyclic reaction product through a SEAr mechanism. Using this approach, a variety of tricyclic heterocycles such as benzo[b]chromenes, phenanthridines, xanthenes, and spiroheterocyclic compounds are efficiently synthesized with high atom economy.
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Affiliation(s)
- Ramón E Millán
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Jaime Rodríguez
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Luis A Sarandeses
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I, Universidad del País Vasco UPV/EHU, 20009 Donostia-San, Sebastián
| | - José Pérez Sestelo
- Centro de Investigacións Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain
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5
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Datta M. Recent Advances of Indium(III) Chloride Catalyzed Reactions in Organic Synthesis. ChemistrySelect 2021. [DOI: 10.1002/slct.202003828] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mrityunjoy Datta
- Department of Chemistry Sarojini Naidu College for Women 30 Jessore Road Kolkata 700028 India
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6
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Glootz K, Barthélemy A, Krossing I. A Simple Homoleptic Gallium(I) Olefin Complex: Mimicking Transition-Metal Chemistry at a Main-Group Metal? Angew Chem Int Ed Engl 2021; 60:208-211. [PMID: 32959513 PMCID: PMC7820946 DOI: 10.1002/anie.202011466] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Indexed: 12/18/2022]
Abstract
The earth-metal olefin complex [GaI (COD)2 ]+ [Al(ORF )4 ]- (COD=1,5-cyclooctadiene; RF =C(CF3 )3 ) constitutes the first homoleptic olefin complex of any main-group metal accessible as a bulk compound. It is straight forward to prepare in good yield and constitutes an olefin complex of a main-group metal that-similar to many transition-metals-may adopt the +1 and +3 oxidation states opening potential applications. Crystallographic-, vibrational- and computational investigations give an insight to the atypical bonding between an olefin and a main-group metal. They are compared to classical transition-metal relatives.
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Affiliation(s)
- Kim Glootz
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF)Universität FreiburgAlbertstr. 2179104FreiburgGermany
| | - Antoine Barthélemy
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF)Universität FreiburgAlbertstr. 2179104FreiburgGermany
| | - Ingo Krossing
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF)Universität FreiburgAlbertstr. 2179104FreiburgGermany
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7
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Glootz K, Barthélemy A, Krossing I. A Simple Homoleptic Gallium(I) Olefin Complex: Mimicking Transition‐Metal Chemistry at a Main‐Group Metal? Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202011466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Kim Glootz
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF) Universität Freiburg Albertstr. 21 79104 Freiburg Germany
| | - Antoine Barthélemy
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF) Universität Freiburg Albertstr. 21 79104 Freiburg Germany
| | - Ingo Krossing
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF) Universität Freiburg Albertstr. 21 79104 Freiburg Germany
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8
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Brandão P, Burke AJ, Pineiro M. A Decade of Indium‐Catalyzed Multicomponent Reactions (MCRs). European J Org Chem 2020. [DOI: 10.1002/ejoc.202000596] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Pedro Brandão
- CQC and Department of Chemistry University of Coimbra 3004‐535 Coimbra Portugal
- Departamento de Química de Évora and LAQV‐REQUIMTE University of Évora 7000‐671 Évora Portugal
| | - Anthony J. Burke
- Departamento de Química de Évora and LAQV‐REQUIMTE University of Évora 7000‐671 Évora Portugal
| | - Marta Pineiro
- CQC and Department of Chemistry University of Coimbra 3004‐535 Coimbra Portugal
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9
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Chaffey DR, Alamillo-Ferrer C, Davies TE, Taylor SH, Tomkinson NCO, Graham AE. Metal Triflate-Promoted Allylic Substitution Reactions of Cinnamyl Alcohol in the Presence of Orthoesters and Acetals. ACS OMEGA 2019; 4:15985-15991. [PMID: 31592469 PMCID: PMC6776978 DOI: 10.1021/acsomega.9b02059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Accepted: 08/22/2019] [Indexed: 06/10/2023]
Abstract
The product distribution of ethers formed from the reaction of cinnamyl alcohol with orthoesters in the presence of indium (III) triflate (InOTf)3 is dependent on both the reaction temperature and catalyst loading. Carrying out the reaction at room temperature under low loadings of the catalyst leads to a facile reaction generating the unexpected secondary allyl ether as the major product. In contrast, carrying out the reaction under higher catalyst loadings at elevated temperatures provides the expected primary linear ether in high yield and with excellent selectivity. The etherification reaction is also effective in the presence of acetals and ketals in place of orthoesters and allows for the development of the procedure to encompass a telescoped etherification protocol in which the acetal is generated in situ.
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Affiliation(s)
- Dawn R. Chaffey
- School
of Applied Sciences, University of South
Wales, Pontypridd CF37 4AT, UK
| | - Carla Alamillo-Ferrer
- WestCHEM,
Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, Glasgow G1 1XL, UK
| | - Thomas E. Davies
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Stuart H. Taylor
- Cardiff
Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff CF10 3AT, UK
| | - Nicholas C. O. Tomkinson
- WestCHEM,
Department of Pure and Applied Chemistry, Thomas Graham Building, University of Strathclyde, Glasgow G1 1XL, UK
| | - Andrew E. Graham
- School
of Applied Sciences, University of South
Wales, Pontypridd CF37 4AT, UK
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10
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Xing S, Xia H, Guo J, Zou C, Gao T, Wang K, Zhu B, Pei M, Bai M. Diastereoselective Construction of 2-Aminoindanones via an In(OTf) 3-Catalyzed Domino Reaction. J Org Chem 2019; 84:8984-8997. [PMID: 31250644 DOI: 10.1021/acs.joc.9b00876] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An In(OTf)3-catalyzed domino reaction involving sequential oxidative ring opening of aziridines by using the solvent dimethyl sulfoxide and intramolecular Michael addition has been developed for the modular synthesis of 2-aminoindanone compounds by the formation of one new C═O bond and one new C-C bond. The notable feature of this strategy includes broad substrate scope, excellent trans-diastereoselectivities, highly functionalized products, and mild conditions. The catalyst In(OTf)3 plays an important role in the formation of the indanone ring.
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Affiliation(s)
- Siyang Xing
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Hanyu Xia
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Junshuo Guo
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Chenchen Zou
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Tingxuan Gao
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Kui Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Meiqi Pei
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
| | - Mengpei Bai
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules, Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry, Ministry of Education (Tianjin Normal University), College of Chemistry , Tianjin Normal University , Tianjin 300387 , People's Republic of China
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11
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Das A, Roy H, Ansary I. Microwave-Assisted, One-Pot Three-Component Synthesis of 6-(Pyrrolyl) Coumarin/Quinolone Derivatives Catalyzed by In(III) Chloride. ChemistrySelect 2018. [DOI: 10.1002/slct.201801931] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Arijit Das
- Department of Chemistry; The University of Burdwan; Golapbag Campus, Rajbati; Burdwan-713 104, West Bengal India
| | - Hiren Roy
- Department of Chemistry; The University of Burdwan; Golapbag Campus, Rajbati; Burdwan-713 104, West Bengal India
| | - Inul Ansary
- Department of Chemistry; The University of Burdwan; Golapbag Campus, Rajbati; Burdwan-713 104, West Bengal India
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12
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Jung HJ, Chang C, Yu I, Aluthge DC, Ebrahimi T, Mehrkhodavandi P. Coupling of Epoxides and Lactones by Cationic Indium Catalysts To Form Functionalized Spiro-Orthoesters. ChemCatChem 2018. [DOI: 10.1002/cctc.201800474] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Hyuk-Joon Jung
- Department of Chemistry; University of British Columbia; 2036 Main Mall Vancouver BC V6T 1Z1 Canada
| | - Chen Chang
- Department of Chemistry; University of British Columbia; 2036 Main Mall Vancouver BC V6T 1Z1 Canada
| | - Insun Yu
- Department of Chemistry; University of British Columbia; 2036 Main Mall Vancouver BC V6T 1Z1 Canada
| | - Dinesh C. Aluthge
- Department of Chemistry; University of British Columbia; 2036 Main Mall Vancouver BC V6T 1Z1 Canada
| | - Tannaz Ebrahimi
- Department of Chemistry; University of British Columbia; 2036 Main Mall Vancouver BC V6T 1Z1 Canada
| | - Parisa Mehrkhodavandi
- Department of Chemistry; University of British Columbia; 2036 Main Mall Vancouver BC V6T 1Z1 Canada
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13
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Abe T, Yamada K. Dehydrative Mannich-Type Reaction for the Synthesis of Azepinobisindole Alkaloid Iheyamine A. Org Lett 2018; 20:1469-1472. [DOI: 10.1021/acs.orglett.8b00330] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Takumi Abe
- Faculty of Pharmaceutical
Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
| | - Koji Yamada
- Faculty of Pharmaceutical
Sciences, Health Sciences University of Hokkaido, Ishikari-tobetsu, Hokkaido 0610293, Japan
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14
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Pérez Sestelo J, Sarandeses LA, Martínez MM, Alonso-Marañón L. Indium(iii) as π-acid catalyst for the electrophilic activation of carbon–carbon unsaturated systems. Org Biomol Chem 2018; 16:5733-5747. [DOI: 10.1039/c8ob01426d] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review focuses on indium(iii) as a π-acid for the activation of C–C unsaturated systems (alkynes, alkenes, and allenes) in organic synthesis.
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Affiliation(s)
- José Pérez Sestelo
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - Luis A. Sarandeses
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - M. Montserrat Martínez
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química
- Universidade da Coruña
- E-15071 A Coruña
- Spain
| | - Lorena Alonso-Marañón
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química
- Universidade da Coruña
- E-15071 A Coruña
- Spain
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15
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Roy R, Saha S. Scope and advances in the catalytic propargylic substitution reaction. RSC Adv 2018; 8:31129-31193. [PMID: 35548716 PMCID: PMC9085608 DOI: 10.1039/c8ra04481c] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 08/27/2018] [Indexed: 11/26/2022] Open
Abstract
Nucleophilic displacement of the propargylic alcohol is one of the sought-after methods in the current scenario. The highly nucleophilic alkyne functional moiety along with its considerably acidic terminal hydrogen atom allows the propargylic unit to play a crucial role in organic synthesis by offering a handle for further synthetic transformations. Until 2000, the most fundamental propargylic substitution reaction was the Nicolas reaction, a multi-step transformation, developed in 1972, which involved cobalt as a stoichiometric promoter. Therefore, the direct catalytic substitution of propargylic alcohols was a highly desirable method for development. The pioneering work on the Ru-catalyzed propargylic substitution reaction in 2000 encouraged many researchers to develop several novel catalytic propargylic substitution reactions, which have made rapid progress since then. The purpose of this review is to emphasise the involvement of diverse types of Lewis acid, transition metal and Brønsted acid catalysts in the propargylic substitution reaction and provide an updated summary of the recent developments in this field. The selected examples presented here are the most significant and relevant ones and we believe that this will help the readers to comprehend the scope of the propargylic substitution reaction with diverse types of catalysts and will envisage the scientific community for the future developments in this field. Direct nucleophilic displacement of the alpha-hydroxy of the propargylic alcohol is one of the sought-after methods in the current scenario. An updated summary of the recent developments in this field is presented here.![]()
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Affiliation(s)
| | - Satyajit Saha
- Department of Dyestuff Technology
- ICT Mumbai
- Mumbai
- India
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16
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Shaikh RR, Pornpraprom S, D’Elia V. Catalytic Strategies for the Cycloaddition of Pure, Diluted, and Waste CO2 to Epoxides under Ambient Conditions. ACS Catal 2017. [DOI: 10.1021/acscatal.7b03580] [Citation(s) in RCA: 413] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Rafik Rajjak Shaikh
- Department of Materials Science
and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Payupnai, Wangchan, Rayong 21210, Thailand
| | - Suriyaporn Pornpraprom
- Department of Materials Science
and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Payupnai, Wangchan, Rayong 21210, Thailand
| | - Valerio D’Elia
- Department of Materials Science
and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology (VISTEC), 555 Moo 1, Payupnai, Wangchan, Rayong 21210, Thailand
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17
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Li Z, Thiery G, Lichtenthaler MR, Guillot R, Krossing I, Gandon V, Bour C. Catalytic Use of Low-Valent Cationic Gallium(I) Complexes as π-Acids. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701081] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhilong Li
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| | - Guillaume Thiery
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| | - Martin R. Lichtenthaler
- Department of Chemistry; University of California, Berkeley; USA
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Albert-Ludwigs-Universität Freiburg; Albertstr. 21 79104 Freiburg Germany
| | - Régis Guillot
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| | - Ingo Krossing
- Institut für Anorganische und Analytische Chemie and Freiburger Materialforschungszentrum (FMF); Albert-Ludwigs-Universität Freiburg; Albertstr. 21 79104 Freiburg Germany
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
| | - Christophe Bour
- Institut de Chimie Moléculaire et des Matériaux d'Orsay; CNRS UMR 8182; Université Paris-Sud; Université Paris-Saclay; Bâtiment 420 91405 Orsay cedex France
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18
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Aguirre-Díaz LM, Reinares-Fisac D, Iglesias M, Gutiérrez-Puebla E, Gándara F, Snejko N, Monge MÁ. Group 13th metal-organic frameworks and their role in heterogeneous catalysis. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.12.003] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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19
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Compain G, Sikk L, Massi L, Gal JF, Duñach E. Bond Strength and Reactivity Scales for Lewis Superacid Adducts: A Comparative Study with In(OTf)3and Al(OTf)3. Chemphyschem 2017; 18:683-691. [DOI: 10.1002/cphc.201601389] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Indexed: 01/09/2023]
Affiliation(s)
- Guillaume Compain
- Institut de Chimie de Nice, UMR 7272; Université Côte D'Azur, CNRS; 06108 Nice France
| | - Lauri Sikk
- Institut de Chimie de Nice, UMR 7272; Université Côte D'Azur, CNRS; 06108 Nice France
| | - Lionel Massi
- Institut de Chimie de Nice, UMR 7272; Université Côte D'Azur, CNRS; 06108 Nice France
| | - Jean-François Gal
- Institut de Chimie de Nice, UMR 7272; Université Côte D'Azur, CNRS; 06108 Nice France
| | - Elisabet Duñach
- Institut de Chimie de Nice, UMR 7272; Université Côte D'Azur, CNRS; 06108 Nice France
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20
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Satheeshkumar R, Sayin K, Kaminsky W, Rajendra Prasad KJ. Synthesis, spectral analysis and quantum chemical studies on molecular geometry, chemical reactivity of 7-chloro-9-(2′-chlorophenyl)-2,3-dihydroacridin-4(1H)-one and 7-chloro-9-(2′-fluorophenyl)-2,3-dihydroacridin-4(1H)-one. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.08.080] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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21
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Iron(II) N-heterocyclic carbene complexes in catalytic one-pot Wittig reactions: Mechanistic insights. J Catal 2016. [DOI: 10.1016/j.jcat.2016.09.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Jamal Z, Teo YC, Lim GS. Direct alkenylation of alkylazaarenes with aldehydes through C(sp3)–H functionalization under catalytic InCl3 activation. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.03.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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23
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Selvi T, Srinivasan K. Boron Trifluoride-Promoted Indium(III) Triflate-Catalyzed Sequential One-Pot Synthesis of (1,2-Diaryl-2-oxoethyl)malonates fromtrans-2-Aryl-3-nitrocyclopropane-1,1-dicarboxylates and Activated Arenes. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500143] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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24
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Michelet B, Colard-Itté JR, Thiery G, Guillot R, Bour C, Gandon V. Dibromoindium(iii) cations as a π-Lewis acid: characterization of [IPr·InBr2][SbF6] and its catalytic activity towards alkynes and alkenes. Chem Commun (Camb) 2015; 51:7401-4. [DOI: 10.1039/c5cc00740b] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Jamal Z, Teo YC. Indium-catalyzed C(sp3)–H functionalization of 2-methylazaarenes through direct benzylic addition to trifluoromethyl ketones. RSC Adv 2015. [DOI: 10.1039/c4ra17182a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The application of InCl3 for the catalytic C(sp3)–H functionalization of 2-methylazaarenes leading to trifluoromethylated alcohols in up to 99% yield.
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Affiliation(s)
- Zaini Jamal
- Natural Sciences and Science Education
- National Institute of Education
- Nanyang Technological University
- Singapore 637616
- Singapore
| | - Yong-Chua Teo
- Natural Sciences and Science Education
- National Institute of Education
- Nanyang Technological University
- Singapore 637616
- Singapore
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26
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Thirupathaiah B, Seo S. Indium triflate-catalyzed stereoselective tandem intramolecular conjugate addition of secondary amines to α,β-bisenones. Chem Commun (Camb) 2015; 51:4216-9. [DOI: 10.1039/c4cc10016f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an indium triflate-catalyzed stereoselective intramolecular tandem conjugate addition of secondary amines to α,β-bisenones to afford a 1,2,3-trisubstituted six-membered ring bearing diketone substituents in good to excellent yields at room temperature.
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Affiliation(s)
| | - SungYong Seo
- Department of Chemistry
- Pukyong National University
- Busan
- Republic of Korea
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27
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Affiliation(s)
- Chang-Liang Sun
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Green Chemistry Center, Peking University , 202 Chengfu Road, 098#, Beijing 100871, China
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28
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Borah P, Naidu PS, Majumder S, Bhuyan PJ. Microwave-assisted one-pot multi-component reaction: synthesis of novel and highly functionalized 3-(pyranyl)- and 3-(dihydropyridinyl)indole derivatives. Mol Divers 2014; 18:759-67. [DOI: 10.1007/s11030-014-9533-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Accepted: 06/16/2014] [Indexed: 11/30/2022]
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29
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Salmasan RM, Manabe Y, Kitawaki Y, Chang TC, Fukase K. Efficient Glycosylation Using In(OTf)3 as a Lewis Acid: Activation of N-Phenyltrifluoroacetimidate or Thioglycosides with Halogenated Reagents or PhIO. CHEM LETT 2014. [DOI: 10.1246/cl.140167] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University
| | - Yuriko Kitawaki
- Department of Chemistry, Graduate School of Science, Osaka University
| | - Tsung-Che Chang
- Department of Chemistry, Graduate School of Science, Osaka University
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University
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30
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Kumar GS, Zeller M, Frasso MA, Prasad KJR. InCl3Promoted Synthesis of Pyrano[3,2-h]quinolines via Microwave Irradiation. J Heterocycl Chem 2014. [DOI: 10.1002/jhet.2067] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Matthias Zeller
- Department of Chemistry; Youngstown State University; One University Plaza Youngstown OH 44555 USA
| | - Michael A. Frasso
- Department of Chemistry; Youngstown State University; One University Plaza Youngstown OH 44555 USA
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31
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Microwave assisted InCl3 mediated regioselective synthesis of highly functionalized indolylpyran under solvent-free condition and its chemical transformation to indolyltriazolylpyran hybrids. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.04.104] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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32
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Sivagurunathan GS, Ramalingam K, Rizzoli C. Continuous Shape Measure of electronic effect free steric distortions in tris(dithiocarbamato)indium(III): Synthesis, spectral, electrochemical, single crystal X-ray structural investigations and BVS calculations on tris(dithiocarbamato)indium(III) complexes. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.01.032] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Kamalraja J, Murugasan P, Perumal PT. InCl3-mediated eco-friendly three-component domino reaction for synthesis of highly functionalized triazolylspiroxindolinopyrans and triazolylpyrans under solvent-free conditions. RSC Adv 2014. [DOI: 10.1039/c4ra01524j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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34
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Mack R, Askins G, Lowry J, Hurley N, Reeves PC. Indium(III) triflate — a catalyst for greener aromatic alkylation reactions. CAN J CHEM 2013. [DOI: 10.1139/cjc-2013-0290] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An environmentally friendly method for alkylating aromatic compounds with simple alcohols in the presence of a catalytic amount of indium(III) triflate is reported. Ionic liquids are used as solvents and energy-efficient heating is provided by microwave radiation. Good yields are obtained with benzyl, secondary, and tertiary alcohols. Simple primary alcohols are not effective alkylating agents under these conditions. With tertiary alcohols, activated aromatic compounds such as toluene and anisole must be used to obtain good yields. The catalyst, which is immobilized in a water-insoluble ionic liquid, can be easily recycled without significant loss of activity.
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Affiliation(s)
- Ryan Mack
- Department of Chemistry and Biochemistry, Abilene Christian University, Abilene, TX 79699, USA
| | - Grant Askins
- Department of Chemistry and Biochemistry, Abilene Christian University, Abilene, TX 79699, USA
| | - Jacob Lowry
- Department of Chemistry and Biochemistry, Abilene Christian University, Abilene, TX 79699, USA
| | - Nathan Hurley
- Department of Chemistry and Biochemistry, Abilene Christian University, Abilene, TX 79699, USA
| | - Perry C. Reeves
- Department of Chemistry and Biochemistry, Abilene Christian University, Abilene, TX 79699, USA
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35
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Herrmann JM, König B. Reductive Deoxygenation of Alcohols: Catalytic Methods Beyond Barton-McCombie Deoxygenation. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300657] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Lakshmi NV, Kiruthika SE, Perumal P. Multicomponent assembly of 2-amino-4-substituted 4H-chromenes using cyclic Michael donors. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0552] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
An efficient one-pot synthesis has been disclosed to access a series of 2-amino-4-substituted 4H-chromenes from salicylaldehyde, malononitrile, and a few cyclic nucleophiles using indium trichloride as a catalyst. This methodology affords high yields of products in a shorter reaction time.
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Affiliation(s)
- Neelakandan Vidhya Lakshmi
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - Selvarangam E. Kiruthika
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
| | - P.T. Perumal
- Organic Chemistry Division, CSIR-Central Leather Research Institute, Adyar, Chennai, 600020 Tamilnadu, India
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37
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Patil VD, Thakur JS, Mhatre S, Gole M, Jaiswal A. Synthesis and Characterization of Nanocrystalline In2O3 and Its Efficacy as a Catalyst for the One Pot Synthesis of Amidoalkyl Naphthols. ACTA ACUST UNITED AC 2013. [DOI: 10.1080/15533174.2012.740749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Jyotsna S. Thakur
- a Department of Chemistry , C.K. Thakur College , New Panvel(w) , India
| | - Shramesha Mhatre
- a Department of Chemistry , C.K. Thakur College , New Panvel(w) , India
| | - Medha Gole
- a Department of Chemistry , C.K. Thakur College , New Panvel(w) , India
| | - Aarti Jaiswal
- a Department of Chemistry , C.K. Thakur College , New Panvel(w) , India
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38
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Kuimov VA, Liao P, Chiou L, You H, Fang C, Liu CW. Unexpected One‐Electron Oxidation of a Secondary Phosphite Selenide Cp(CO)
2
FeP(Se)(O
i
Pr)
2
by GaCl
3
and InCl
3
– Rare Examples of Di‐ and Triselenide Formation. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201322] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Vladimir A. Kuimov
- A. E. Favorsky Irkutsk Institute of Chemistry, Siberian Branch of the Russian Academy of Sciences, 1 Favorsky Str., 664033 Irkutsk, Russian Federation
| | - Ping‐Kuei Liao
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan 97401, R.O.C., Fax: +886‐3‐8633570, http://faculty.ndhu.edu.tw/~cwl/index.htm
| | - Ling‐Song Chiou
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan 97401, R.O.C., Fax: +886‐3‐8633570, http://faculty.ndhu.edu.tw/~cwl/index.htm
| | - Hong‐Chih You
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan 97401, R.O.C., Fax: +886‐3‐8633570, http://faculty.ndhu.edu.tw/~cwl/index.htm
| | - Ching‐Shiang Fang
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan 97401, R.O.C., Fax: +886‐3‐8633570, http://faculty.ndhu.edu.tw/~cwl/index.htm
| | - C. W. Liu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan 97401, R.O.C., Fax: +886‐3‐8633570, http://faculty.ndhu.edu.tw/~cwl/index.htm
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39
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Shen ZL, Wang SY, Chok YK, Xu YH, Loh TP. Organoindium Reagents: The Preparation and Application in Organic Synthesis. Chem Rev 2012; 113:271-401. [DOI: 10.1021/cr300051y] [Citation(s) in RCA: 194] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Zhi-Liang Shen
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological
University, Singapore 637371
| | - Shun-Yi Wang
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological
University, Singapore 637371
| | - Yew-Keong Chok
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological
University, Singapore 637371
| | - Yun-He Xu
- Department
of Chemistry, University
of Science and Technology of China, Hefei 230026, P. R. China
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological
University, Singapore 637371
| | - Teck-Peng Loh
- Department
of Chemistry, University
of Science and Technology of China, Hefei 230026, P. R. China
- Division of Chemistry and Biological
Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological
University, Singapore 637371
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40
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41
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Smith BM, Kubczyk TM, Graham AE. Indium(III) triflate catalysed transacetalisation reactions of diols and triols under solvent-free conditions. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.048] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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42
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Seetham Naidu P, Borah P, Bhuyan PJ. Synthesis of some novel functionalized dihydropyrido[2,3-d]pyrimidines via an one-pot three-component reaction catalysed by InCl3. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.05.102] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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43
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Gao B, Xie M, Sun A, Hu X, Ding X, Liu X, Lin L, Feng X. Probing the Mechanism of the Asymmetric Aminolysis of meso-Epoxides Catalyzed by a Proline-Based N,N′-Dioxide-Indium Tris(triflate) Complex. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200142] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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44
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Chanda T, Verma RK, Singh MS. InCl3-Driven Regioselective Synthesis of Functionalized/Annulated Quinolines: Scope and Limitations. Chem Asian J 2012; 7:778-87. [DOI: 10.1002/asia.201100872] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2011] [Indexed: 11/11/2022]
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45
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Abedi A, Safari N, Amani V, Khavasi HR. Indium(III) complexes containing bithiazole derivatives, chloride, methanol, and dimethyl sulfoxide: X‐ray studies, spectroscopic characterization, and thermal analyses. J COORD CHEM 2012. [DOI: 10.1080/00958972.2011.653638] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Affiliation(s)
- Anita Abedi
- a Department of Chemistry , North Tehran Branch, Islamic Azad University , Tehran , Iran
| | - Nasser Safari
- b Department of Chemistry , Shahid Beheshti University, G. C., Evin , Tehran 983963113 , Iran
| | - Vahid Amani
- b Department of Chemistry , Shahid Beheshti University, G. C., Evin , Tehran 983963113 , Iran
| | - Hamid Reza Khavasi
- b Department of Chemistry , Shahid Beheshti University, G. C., Evin , Tehran 983963113 , Iran
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46
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Verma RK, Verma GK, Shukla G, Singh MS. InCl3 catalyzed domino route to 2H-chromene-2-ones via [4 + 2] annulation of 2-hydroxyarylaldehydes with α-oxoketene dithioacetal under solvent-free conditions. RSC Adv 2012. [DOI: 10.1039/c2ra00987k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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47
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Abstract
5-Phenyl-1-H tetrazole was synthesized by catalytic [3+2] cycloaddition with benzonitrile and sodium azide. Indium trichloride was used as an efficient catalyst.
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48
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Rampon DS, Giovenardi R, Silva TL, Rambo RS, Merlo AA, Schneider PH. Chalcogenoacetylenes Obtained by Indium(III) Catalysis: Dual Catalytic Activation of Diorgano Dichalcogenides and Csp-H Bonds. European J Org Chem 2011. [DOI: 10.1002/ejoc.201101245] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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49
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Using In(III) as a promoter for glycosylation. Carbohydr Res 2011; 347:142-6. [PMID: 22094006 DOI: 10.1016/j.carres.2011.10.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2011] [Revised: 10/03/2011] [Accepted: 10/10/2011] [Indexed: 11/21/2022]
Abstract
InCl(3), InBr(3), and In(OTf)(3) were tested as promoters in the preparation of glycosides from trichloroacetimidate precursors. A range of protecting groups and of alcohol acceptors were used to determine the versatility of these promoters. Disaccharide formation was demonstrated. In most cases, the In(III) compounds were shown to promote glycosylation better than the widely used promoter BF(3)·OEt(2).
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50
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Qiu WW, Surendra K, Yin L, Corey EJ. Selective formation of six-membered oxa- and carbocycles by the In(III)-activated ring closure of acetylenic substrates. Org Lett 2011; 13:5893-5. [PMID: 21992657 DOI: 10.1021/ol202621g] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fifteen examples are disclosed of efficient In(III)-catalyzed six-membered ring closure leading to bi-, tri-, and tetracyclic products.
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Affiliation(s)
- Wen-Wei Qiu
- Department of Chemistry and Chemical Biology, Harvard University Cambridge, Massachusetts 02138, USA
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