1
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Zanakhov TO, Galenko EE, Novikov MS, Khlebnikov AF. Divergent Diazo Approach toward Alkyl 5/4-Hydroxy-3 H-benzo[ e]indole-4/5-carboxylates. J Org Chem 2023; 88:13191-13204. [PMID: 37672038 DOI: 10.1021/acs.joc.3c01413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/07/2023]
Abstract
A divergent diazo approach toward alkyl 5/4-hydroxy-3H-benzo[e]indole-4/5-carboxylates has been developed. The reaction of 1,3-diketones with alkyl 2-diazo-3-oxo-3-(2H-azirin-2-yl)propanoates catalyzed by Co(acac)3 or Ni(acac)2 gives various alkyl 3-(1H-pyrrol-2-yl)-2-diazo-3-oxopropanoate in good yields. The latter undergo Wolff rearrangement followed by the 6π-cyclization of transient ketene to form alkyl 5-hydroxy-3H-benzo[e]indole-4-carboxylates bearing various substituents in positions 1, 2, 7, and 8, as well as derivatives of methyl 4-hydroxy-6H-thieno[2,3-e]indole-5-carboxylates and methyl 5-hydroxy-7H-benzo[c]carbazole-6-carboxylate under thermolysis or Rh2(OAc)4 catalysis. Isomeric benzoindoles, alkyl 4-hydroxy-3H-benzo[e]indole-5-carboxylates, have been prepared by Boc-protection of the pyrrole nitrogen of alkyl 3-(1H-pyrrol-2-yl)-2-diazo-3-oxopropanoates followed by an intramolecular formal carbene insertion into the aromatic C-H bond catalyzed by Cu(OTf)2. The hydroxyl group of alkyl 5/4-hydroxy-3H-benzo[e]indole-4/5-carboxylates, through the formation of the corresponding triflates, allows the introduction of various substituents into the 5/4 position of benzo[e]indoles using the cross-coupling reaction and even form a new heterocyclic backbone, benzo[k]pyrrolo[2,3-i]phenanthridine, via a tandem Suzuki reaction/nucleophilic acyl substitution.
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Affiliation(s)
- Timur O Zanakhov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Naberezhnaya, St. Petersburg 199034, Russia
| | - Ekaterina E Galenko
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Naberezhnaya, St. Petersburg 199034, Russia
| | - Mikhail S Novikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Naberezhnaya, St. Petersburg 199034, Russia
| | - Alexander F Khlebnikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Naberezhnaya, St. Petersburg 199034, Russia
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2
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Sahu S, Banerjee A, Kundu S, Bhattacharyya A, Maji MS. Synthesis of functionalized indoles via cascade benzannulation strategies: a decade's overview. Org Biomol Chem 2022; 20:3029-3042. [PMID: 35332905 DOI: 10.1039/d2ob00187j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Indoles are one of the most prominent aromatic heterocycles in the organic chemistry field. Due to their widespread presence in various natural products, alkaloids, drugs, approved medicines, etc. the synthesis and functionalization of indoles are of great interest. This review emphasizes recent developments and techniques in the domino cascade cyclization process in the last decade starting from the various building blocks. In particular, this review depicts several intriguing benzannulation methods of creating a benzene ring on a pre-existing pyrrole nucleus in an inter/intramolecular fashion under metal-catalyzed/metal-free approaches. Different subsections focus on gradual timely developments in this complementary area and a detailed analysis of the mechanisms and reactivity patterns. As a complementary method, this review gives a significant incentive to various annulation strategies and also gives an overview of the remaining challenges and upcoming possibilities.
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Affiliation(s)
- Samrat Sahu
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Ankush Banerjee
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Samrat Kundu
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Arya Bhattacharyya
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
| | - Modhu Sudan Maji
- Department of Chemistry, Indian Institute of Technology Kharagpur, Kharagpur-721302, India.
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3
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Xie F, Sun Y, Song H, Zhao J, Zhang Z, Duan Y, Chen R. Cascade Reaction of 2-Naphthols and Azirines: One-Pot Synthesis of C-3 Naphthol-Substituted Benzo[ e]indoles. J Org Chem 2021; 86:15631-15639. [PMID: 34643381 DOI: 10.1021/acs.joc.1c02164] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A copper-catalyzed annulation of 3-aryl-2H-azirines with 2-naphthols has been developed for the rapid assembly of C-3-naphthol-substituted benzo[e]indoles in one pot. This cascade reaction was realized through dearomatic nucleophilic ring opening of azirine, intramolecular cyclization, and oxidative cross-dehydrogenative coupling to furnish the important unreported π-expanded naphthol/benzo[e]indole biaryls.
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Affiliation(s)
- Fang Xie
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Yajun Sun
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Hanghang Song
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Jie Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Zengpeng Zhang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Yue Duan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
| | - Rao Chen
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, Shandong 273165, China
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4
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Raji Reddy C, Aila M, Subbarao M, Warudikar K, Grée R. Domino Reaction of 2,4-Diyn-1-ols with 1,3-Dicarbonyl Compounds: Direct Access to Aryl/Heteroaryl-Fused Benzofurans and Indoles. Org Lett 2021; 23:4882-4887. [PMID: 34096313 DOI: 10.1021/acs.orglett.1c01615] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A domino propargylation/furanylation (intramolecular exo-dig-cyclization)/benzannulation reaction of 2,4-diyn-1-ols with 1,3-dicarbonyl compounds has been developed for the first time. This provides a novel and effective method for the preparation of aryl/heteroaryl-fused benzofurans from easily accessible starting materials in a single step. The methodology was extended to pyrrolyl-benzannulation to obtain aryl/heteroaryl-fused indoles. Further, application of this approach in the synthesis of eustifoline D and dictyodendrin structural frameworks has been demonstrated.
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Affiliation(s)
- Chada Raji Reddy
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Mounika Aila
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Muppidi Subbarao
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Kamalkishor Warudikar
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - René Grée
- Univ Rennes, CNRS (Institut for Chemical Sciences in Rennes), UMR 6226, 35000 Rennes, France
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5
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Tiekink ERT. Supramolecular architectures sustained by delocalised C–I⋯π(arene) interactions in molecular crystals and the propensity of their formation. CrystEngComm 2021. [DOI: 10.1039/d0ce01677b] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A survey of delocalised C–I⋯π(chelate ring) interactions is presented.
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Affiliation(s)
- Edward R. T. Tiekink
- Research Centre for Crystalline Materials
- School of Science and Technology
- Sunway University
- Bandar Sunway
- Malaysia
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6
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Wang J, Deng YJ, Yan XX, Liu YJ, Ge CP, Yan Y, Chao S, Zhou PX. Synthesis of 3-phosphinoylbenzofurans via electrophilic phosphination cyclization. Org Chem Front 2020. [DOI: 10.1039/c9qo01502g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
An expedient strategy for the synthesis of 3-phosphinoylbenzofurans through a cascade electrophilic phosphination cyclization has been presented.
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Affiliation(s)
- Jia Wang
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Yun-Jing Deng
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Xin-Xin Yan
- College of Pharmacy
- Xinxiang Medical University
- Xinxiang
- China
| | - Yu-Jie Liu
- College of Pharmacy
- Xinxiang Medical University
- Xinxiang
- China
| | - Chun-Po Ge
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Yunhui Yan
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Shujun Chao
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
| | - Ping-Xin Zhou
- School of Basic Medical Sciences
- Xinxiang Medical University
- Xinxiang
- China
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7
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Synthesis of Anthraquinones by Iridium-Catalyzed [2 + 2 + 2] Cycloaddition of a 1,2-Bis(propiolyl)benzene Derivative with Alkynes. INORGANICS 2019. [DOI: 10.3390/inorganics7110138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
[2 + 2 + 2] cycloaddition of a 1,2-bis(propiolyl)benzene derivative with terminal and internal alkynes takes place in the presence of [Ir(cod)Cl]2 (cod = 1,5-cyclooctadiene) combined with bis(diphenylphosphino)ethane (DPPE) to give anthraquinones in 42% to 93% yields with a simple experimental procedure. A fluorenone derivative can also be synthesized by iridium-catalyzed [2 + 2 + 2] cycloaddition of a benzene-linked ketodiyne with an internal alkyne to give a 94% yield.
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8
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Pankova AS, Shestakov AN, Kuznetsov MA. Cyclization of ortho-ethynylbiaryls as an emerging versatile tool for the construction of polycyclic arenes. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4855] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Cyclization and cycloisomerization of ortho-aryl(ethynyl)arenes provide an easy direct access to fused polycyclic aromatic carbo- and heterocycles. This methodology has demonstrated an impressive progress in the recent years. The goal of this review is to give a comprehensive outlook on the synthetic potential, scope, limitations, and mechanistic aspects of the cyclization reactions. The material is arranged according to the activation method that can be used to induce cyclization: pyrolysis, metal catalysis, electrophilic activation, radical induction, base catalysis. Particular attention is paid to the specificity of ortho-ethynylbiaryls with a heterocyclic central core.
The bibliography includes 257 references.
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9
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Martins GM, do Carmo G, Morel AF, Kaufman TS, Silveira CC. A Convenient and Atom-Economic One-Pot Selenium-Chloride-Mediated Synthesis of 2-Arylselenopheno[2,3-b
]indoles and Their Antifungal Activity. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Guilherme M. Martins
- Departamento de Química; Universidade Federal de Santa Maria; Santa Maria 97105-900, RS Brazil
| | - Gabriele do Carmo
- Departamento de Química; Universidade Federal de Santa Maria; Santa Maria 97105-900, RS Brazil
| | - Ademir F. Morel
- Departamento de Química; Universidade Federal de Santa Maria; Santa Maria 97105-900, RS Brazil
| | - Teodoro S. Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR); Suipacha 531 S2002LRK Rosario Argentina
| | - Claudio C. Silveira
- Departamento de Química; Universidade Federal de Santa Maria; Santa Maria 97105-900, RS Brazil
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10
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Supantanapong N, Chuangsoongnern P, Tummatorn J, Thongsornkleeb C, Ruchirawat S. One-pot sequential synthesis of 3-carbonyl-4-arylbenzo[f]indole and 3-carbonyl-4-arylnaphthofuran fluorophores. Org Chem Front 2019. [DOI: 10.1039/c8qo01182f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A robust synthetic method for the construction of valuable fluorophores, 3-carbonyl-4-arylbenzo[f]indoles and 3-carbonyl-4-arylnaphthofurans, has been developed. The strategy involved a one-pot domino process to achieve the products in moderate to excellent yields.
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Affiliation(s)
- N. Supantanapong
- Program on Chemical Biology
- Chulabhorn Graduate Institute
- Center of Excellence on Environmental Health and Toxicology (EHT)
- Ministry of Education
- Laksi
| | - P. Chuangsoongnern
- Laboratory of Medicinal Chemistry
- Chulabhorn Research Institute
- Laksi
- Thailand
| | - J. Tummatorn
- Program on Chemical Biology
- Chulabhorn Graduate Institute
- Center of Excellence on Environmental Health and Toxicology (EHT)
- Ministry of Education
- Laksi
| | - C. Thongsornkleeb
- Program on Chemical Biology
- Chulabhorn Graduate Institute
- Center of Excellence on Environmental Health and Toxicology (EHT)
- Ministry of Education
- Laksi
| | - S. Ruchirawat
- Program on Chemical Biology
- Chulabhorn Graduate Institute
- Center of Excellence on Environmental Health and Toxicology (EHT)
- Ministry of Education
- Laksi
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11
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Okitsu T, Nakahigashi H, Sugihara R, Fukuda I, Tsuji S, In Y, Wada A. Silyl Group-Directed 6-exo-dig Iodocyclization of Homopropargylic Carbamates and Amides. Chemistry 2018; 24:18638-18642. [PMID: 30311697 DOI: 10.1002/chem.201804794] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Indexed: 12/21/2022]
Abstract
Iodocyclization of silyl group-substituted homopropargylic carbamates and amides proceeded via 6-exo-dig mode to afford 6-vinylene-4,5-dihydro-1,3-oxazines in moderate to quantitative yields. This is the first report for silyl group-solely directed iodocyclization of alkynes utilizing the β-silyl effect. Under these mild reaction conditions, various functionalities such as secondary alcohol, acetal, urea, and sulfide were tolerated.
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Affiliation(s)
- Takashi Okitsu
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Hikaru Nakahigashi
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Ryosuke Sugihara
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Ikki Fukuda
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Saki Tsuji
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
| | - Yasuko In
- Department of Physical Chemistry, Osaka University of Pharmaceutical Sciences, 4-20-1 Nasahara, Takatsuki, Osaka, 569-1094, Japan
| | - Akimori Wada
- Laboratory of Organic Chemistry for Life Science, Kobe Pharmaceutical University, 4-19-1 Motoyamakita-machi, Higashinada-ku, Kobe, 658-8558, Japan
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12
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Yadav D, Shukla G, Ansari MA, Srivastava A, Singh MS. Chemoselective one-pot access to benzo[e]indole-4,5-diones and naphtho[2,1-b]thiophene-4,5-diones via copper-catalyzed oxidative [3 + 2] annulation of α-oxoketene N,S-acetals/β-ketothioamides with α-/β-naphthols. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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13
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Bettanin L, Saba S, Doerner CV, Franco MS, Godoi M, Rafique J, Braga AL. NH4I-catalyzed chalcogen(S/Se)-functionalization of 5-membered N-heteroaryls under metal-free conditions. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.05.084] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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14
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Clarke AK, Lynam JM, Taylor RJK, Unsworth WP. “Back-to-Front” Indole Synthesis Using Silver(I) Catalysis: Unexpected C-3 Pyrrole Activation Mode Supported by DFT. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00745] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Aimee K. Clarke
- University of York, Heslington, York, YO10 5DD, United Kingdom
| | - Jason M. Lynam
- University of York, Heslington, York, YO10 5DD, United Kingdom
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15
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Rafique J, Saba S, Franco MS, Bettanin L, Schneider AR, Silva LT, Braga AL. Direct, Metal-free C(sp2
)−H Chalcogenation of Indoles and Imidazopyridines with Dichalcogenides Catalysed by KIO3. Chemistry 2018; 24:4173-4180. [DOI: 10.1002/chem.201705404] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Jamal Rafique
- Departamento de Química; Universidade Federal de Santa Catarina; Florianopolis 88040-900 SC Brazil
| | - Sumbal Saba
- Departamento de Química; Universidade Federal de Santa Catarina; Florianopolis 88040-900 SC Brazil
| | - Marcelo S. Franco
- Departamento de Química; Universidade Federal de Santa Catarina; Florianopolis 88040-900 SC Brazil
| | - Luana Bettanin
- Departamento de Química; Universidade Federal de Santa Catarina; Florianopolis 88040-900 SC Brazil
| | - Alex R. Schneider
- Departamento de Química; Universidade Federal de Santa Catarina; Florianopolis 88040-900 SC Brazil
| | - Lais T. Silva
- Departamento de Química; Universidade Federal de Santa Catarina; Florianopolis 88040-900 SC Brazil
| | - Antonio L. Braga
- Departamento de Química; Universidade Federal de Santa Catarina; Florianopolis 88040-900 SC Brazil
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16
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Wei J, Liu L, Tang DN, Wu CP, Zhao XJ, Hao WJ, Jiang B. Microwave-assisted Three-component Reactions for Regioselective Synthesis of Functionalized Benzo[e
]indoles. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2962] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Jing Wei
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
| | - Lei Liu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
| | - Dan-Ni Tang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
| | - Cui-Ping Wu
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
| | - Xiao-Juan Zhao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
| | - Wen-Juan Hao
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
| | - Bo Jiang
- Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, School of Chemistry and Materials Science; Jiangsu Normal University; Xuzhou Jiangsu 221116 People's Republic of China
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17
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Padilha G, Iglesias BA, Back DF, Kaufman TS, Silveira CC. Synthesis of Chromeno[4,3-b]pyrrol-4(1H)-ones, from β-Nitroalkenes and 4-Phenylaminocoumarins, under Solvent-free Conditions. ChemistrySelect 2017. [DOI: 10.1002/slct.201700114] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Gustavo Padilha
- Departamento de Química; Universidade Federal de Santa Maria (UFSM); 97105-900 Santa Maria, RS Brazil
| | - Bernardo A. Iglesias
- Departamento de Química; Universidade Federal de Santa Maria (UFSM); 97105-900 Santa Maria, RS Brazil
| | - Davi F. Back
- Departamento de Química; Universidade Federal de Santa Maria (UFSM); 97105-900 Santa Maria, RS Brazil
| | - Teodoro S. Kaufman
- Instituto de Química Rosario and Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario; IQUIR (CONICET-UNR), Suipacha 531 (2000); Rosario Argentina
| | - Claudio C. Silveira
- Departamento de Química; Universidade Federal de Santa Maria (UFSM); 97105-900 Santa Maria, RS Brazil
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18
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Mancuso R, Pomelli CC, Malafronte F, Maner A, Marino N, Chiappe C, Gabriele B. Divergent syntheses of iodinated isobenzofuranones and isochromenones by iodolactonization of 2-alkynylbenzoic acids in ionic liquids. Org Biomol Chem 2017; 15:4831-4841. [DOI: 10.1039/c7ob00962c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
2-Alkynylbenzoic acids can be divergently iodocyclized to either isobenzofuranones or isochromenones by changing the nature of the ionic liquid medium.
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Affiliation(s)
- Raffaella Mancuso
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC)
- Department of Chemistry and Chemical Technologies
- University of Calabria
- 87036 Arcavacata di Rende (CS)
- Italy
| | | | - Francesco Malafronte
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC)
- Department of Chemistry and Chemical Technologies
- University of Calabria
- 87036 Arcavacata di Rende (CS)
- Italy
| | - Asif Maner
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC)
- Department of Chemistry and Chemical Technologies
- University of Calabria
- 87036 Arcavacata di Rende (CS)
- Italy
| | - Nadia Marino
- Department of Chemical Sciences
- University of Padova
- 35131 Padova
- Italy
| | | | - Bartolo Gabriele
- Laboratory of Industrial and Synthetic Organic Chemistry (LISOC)
- Department of Chemistry and Chemical Technologies
- University of Calabria
- 87036 Arcavacata di Rende (CS)
- Italy
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19
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Raju P, Mohanakrishnan AK. Synthetic Approach to Dictyodendrins: A Facile Synthesis of Pyrrolo[2,3-c]carbazole, Pyrrolodibenzothiophene, and Benzo[e]indole. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600674] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Potharaju Raju
- Department of Organic Chemistry; University of Madras; Guindy Campus 600025 Chennai Tamil Nadu India
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Synthesis and preliminary evaluation of 3-thiocyanato-1H-indoles as potential anticancer agents. Eur J Med Chem 2016; 118:21-6. [DOI: 10.1016/j.ejmech.2016.04.039] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 04/14/2016] [Accepted: 04/15/2016] [Indexed: 12/19/2022]
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Aguilar E, Sanz R, Fernández-Rodríguez MA, García-García P. 1,3-Dien-5-ynes: Versatile Building Blocks for the Synthesis of Carbo- and Heterocycles. Chem Rev 2016; 116:8256-311. [PMID: 27410164 DOI: 10.1021/acs.chemrev.6b00181] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
1,3-Dien-5-ynes have been extensively used as starting materials for the synthesis of a wide number of different carbo- and heterocycles. The aim of this review is to give an overview of their utility in organic synthesis, highlighting the variety of compounds that can be directly accessed from single reactions over these systems. Thus, cycloaromatization processes are initially commented, followed by reactions directed toward the syntheses of five-membered rings, other carbocycles and, finally, heterocycles. The diverse methodologies that have been developed for the synthesis of each of these types of compounds from 1,3-dien-5-ynes are presented, emphasizing the influence of the reaction conditions and the use of additional reagents in the outcome of the transformations.
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Affiliation(s)
- Enrique Aguilar
- Instituto Universitario de Química Organometálica "Enrique Moles", Departamento de Química Orgánica e Inorgánica, Universidad de Oviedo , C/Julián Clavería 8, 33006 Oviedo, Spain
| | - Roberto Sanz
- Departamento de Química, Área de Química Orgánica, Facultad de Ciencias, Universidad de Burgos , Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Manuel A Fernández-Rodríguez
- Departamento de Química, Área de Química Orgánica, Facultad de Ciencias, Universidad de Burgos , Pza. Misael Bañuelos s/n, 09001 Burgos, Spain
| | - Patricia García-García
- Departamento de Química Orgánica y Química Inorgánica, Universidad de Alcalá , 28871 Alcalá de Henares, Madrid, Spain
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Yuan J, Wu XY, Sha F. Direct Assembly of Benzo[e]indoles by Diels-Alder Reaction of Arynes and 2-Vinylpyrroles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600334] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jing Yuan
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 200237 Shanghai P. R. China
| | - Xin-Yan Wu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 200237 Shanghai P. R. China
| | - Feng Sha
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; East China University of Science and Technology; 200237 Shanghai P. R. China
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Jung Y, Kim I. Synthesis of 6-Aryl-5-iodobenzo[e]pyrido[1,2-a]indoles by 6-endo-digIodocyclization. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201500423] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Youngeun Jung
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences; Yonsei University; 85 Songdogwahak-ro, Yeonsu-gu Incheon 21983 Republic of Korea
| | - Ikyon Kim
- College of Pharmacy and Yonsei Institute of Pharmaceutical Sciences; Yonsei University; 85 Songdogwahak-ro, Yeonsu-gu Incheon 21983 Republic of Korea
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