1
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Chandrasekharan SP, Dhami A, Kumar S, Mohanan K. Recent advances in pyrazole synthesis employing diazo compounds and synthetic analogues. Org Biomol Chem 2022; 20:8787-8817. [DOI: 10.1039/d2ob01918c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This review summarizes the recent developments in the construction of pyrazoles using diazo compounds, nitrile imines and their synthetic equivalents.
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Affiliation(s)
- Sanoop P. Chandrasekharan
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Anamika Dhami
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Sandeep Kumar
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Kishor Mohanan
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
- Academy of Scientific and Innovative Research, Ghaziabad-201002, India
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2
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Sreenivasulu G, Kadiyala V, Raju CE, Sridhar B, Karunakar GV. Gold‐Catalyzed Synthesis of Pyrazolo[1,5‐
a
]pyridines Regioselectively
via
6‐
endo‐dig
Cyclization. ChemistrySelect 2021. [DOI: 10.1002/slct.202102580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gottam Sreenivasulu
- Division of Fluoro and Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India)
| | - Veerabhushanam Kadiyala
- Division of Fluoro and Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India)
| | - Chittala Emmaniel Raju
- Division of Fluoro and Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India)
| | - Balasubramanian Sridhar
- Centre for X-ray Crystallography CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India)
| | - Galla V. Karunakar
- Division of Fluoro and Agrochemicals CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
- Academy of Scientific and Innovative Research Ghaziabad 201002 India)
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3
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Praveen C. Cycloisomerization of π-Coupled Heteroatom Nucleophiles by Gold Catalysis: En Route to Regiochemically Defined Heterocycles. CHEM REC 2021; 21:1697-1737. [PMID: 34061426 DOI: 10.1002/tcr.202100105] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 11/06/2022]
Abstract
Since the dawn of millennium, catalytic gold chemistry is at the forefront to set off diverse organic reactions via unique activation of π-bonded molecules. Within this purview, cycloisomerization of heteroatom nucleophiles linked to a π-system is one of the well recognized chemistry for the construction of numerous heterocyclic cores. Though the rudimentary aspects of this transformation are reviewed by several groups in different timeline, a holistic view on regiochemistry of such reactions went largely overlooked. Hence, this account emphasizes the gold catalyzed regioselective cycloisomerization of structurally distinctive π-connected hetero-nucleophiles leading to different heterocycles documented in the last two decades. From an application perspective, this account also highlights those methodologies which find a role in the total synthesis of natural products. Wherever appropriate, mechanistic details and contributing factors for selectivity are also discussed.
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Affiliation(s)
- Chandrasekar Praveen
- Electrochemical Power Sources Division, Central Electrochemical Research Institute (CSIR Laboratory), Alagappapuram, Karaikudi, 630003, Sivagangai District, Tamil Nadu, India
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4
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Devi Priya D, Nandhakumar M, Mohana Roopan S. Pyrazolo[1,5-a]pyridine: Recent synthetic view on crucial heterocycles. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1805468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Duraipandi Devi Priya
- Department of Chemistry, Chemistry of Heterocycles & Natural Product Research Laboratory, School of Advanced Science, Vellore, Tamilnadu, India
| | | | - Selvaraj Mohana Roopan
- Department of Chemistry, Chemistry of Heterocycles & Natural Product Research Laboratory, School of Advanced Science, Vellore, Tamilnadu, India
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5
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Golovanov AA, Odin IS, Zlotskii SS. Conjugated enynones: preparation, properties and applications in organic synthesis. RUSSIAN CHEMICAL REVIEWS 2019. [DOI: 10.1070/rcr4808] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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6
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Chen F, Chen Y, Cao H, Xu Q, Yu L. Copper-Catalyzed Regioselective and Stereoselective Coupling of Grignard Reagents with Pent-1-en-4-yn-3-yl Benzoates: A Shortcut to ( Z) -1,5-Disubstituted Pent-3-en-1-ynes from Accessible Starting Materials. J Org Chem 2018; 83:14158-14164. [PMID: 30335381 DOI: 10.1021/acs.joc.8b02275] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Copper-catalyzed coupling of Grignard reagents with pent-1-en-4-yn-3-yl benzoates occurs regioselectively at the terminal alkenyl carbon rather than the alkynyl site, leading to the stereoselective formation of unexpected ( Z) -1,5-disubstituted pent-3-en-1-ynes without generation of the initially expected alkenyl allene products. By using easily accessible starting materials, this reaction can provide direct access to thermodynamically unfavorable Z-configured enynes, which widely exist in many bioactive natural products, such as the anti-inflammatory components in henna.
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Affiliation(s)
- Fenglin Chen
- Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou 225009 , China.,School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou 225002 , China.,School of Chemistry and Chemical Engineering , Nanjing University , Nanjing 210093 , China
| | - Yanjiao Chen
- Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou 225009 , China.,School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou 225002 , China
| | - Hongen Cao
- Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou 225009 , China.,School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou 225002 , China
| | - Qing Xu
- School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou 225002 , China
| | - Lei Yu
- Jiangsu Key Laboratory of Zoonosis , Yangzhou University , Yangzhou 225009 , China.,School of Chemistry and Chemical Engineering , Yangzhou University , Yangzhou 225002 , China
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7
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Obulesu O, Murugesh V, Harish B, Suresh S. Tandem Aza Michael Addition-Vinylogous Nitroaldol Condensation: Construction of Highly Substituted N-Fused 3-Nitropyrazolopyridines. J Org Chem 2018; 83:6454-6465. [PMID: 29779367 DOI: 10.1021/acs.joc.8b00746] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A base-mediated tandem aza-Michael addition-vinylogous nitroaldol condensation has been described between 3,5-dialkyl 4-nitropyrazoles and alkynyl ketones/aldehydes. This transition metal-free atom economical transformation occurred via C-N and C═C bond formations in one step with the elimination of water. The construction of a variety of highly substituted N-fused 3-nitropyrazolopyridine derivatives has been demonstrated with good yields. Good to excellent regioselectivities have been achieved with unsymmetrically substituted 4-nitropyrazoles.
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Affiliation(s)
- Owk Obulesu
- Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology (CSIR-IICT) , Hyderabad 500 007 , India.,Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110 025 , India
| | - V Murugesh
- Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology (CSIR-IICT) , Hyderabad 500 007 , India.,Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110 025 , India
| | - Battu Harish
- Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology (CSIR-IICT) , Hyderabad 500 007 , India.,Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110 025 , India
| | - Surisetti Suresh
- Organic and Biomolecular Chemistry Division , CSIR-Indian Institute of Chemical Technology (CSIR-IICT) , Hyderabad 500 007 , India.,Academy of Scientific and Innovative Research (AcSIR) , New Delhi 110 025 , India
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8
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Asai S, Kato M, Monguchi Y, Sajiki H, Sawama Y. Phosphate-Mediated Enyne Synthesis from Allenols. ChemistrySelect 2017. [DOI: 10.1002/slct.201601789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Shota Asai
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Maho Kato
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Yasunari Monguchi
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Hironao Sajiki
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
| | - Yoshinari Sawama
- Laboratory of Organic Chemistry; Gifu Pharmaceutical University; 1-25-4 Daigaku-nishi Gifu 501-1196 Japan
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9
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Lee YJ, Heo HG, Oh CH. Syntheses of 2,2′-bibenzo[7]annulenes by double Au-catalyzed sequential activation of propargylic carboxylates. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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10
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Wu HC, Chu JH, Li CW, Hwang LC, Wu MJ. Palladium-Catalyzed Regioselective Arylation of Pyrazolo[1,5-a]pyridines via C–H Activation and Synthetic Applications on P38 Kinase Inhibitors. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00988] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hung-Chou Wu
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 804
| | - Jean-Ho Chu
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 804
| | - Chin-Wei Li
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 804
| | - Long-Chih Hwang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 804
| | - Ming-Jung Wu
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 804
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 804
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11
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Debrouwer W, Heugebaert TSA, Roman BI, Stevens CV. Homogeneous Gold-Catalyzed Cyclization Reactions of Alkynes withN- andS-Nucleophiles. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500520] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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12
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Braganza JF, Bernier L, Botrous I, Collins MR, Li B, McAlpine I, Ninkovic S, Ren S, Sach N, Tran-Dubé M, Zeng Q, Zheng B. Improved cyclization conditions to prepare 6-substituted pyrazolo[1,5- a ]pyridines and pyrazolo[1,5- a ]pyrazines using catalytic Ag(I) and Au(III) salts. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.08.050] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Huang L, Arndt M, Gooßen K, Heydt H, Gooßen LJ. Late Transition Metal-Catalyzed Hydroamination and Hydroamidation. Chem Rev 2015; 115:2596-697. [DOI: 10.1021/cr300389u] [Citation(s) in RCA: 739] [Impact Index Per Article: 82.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Liangbin Huang
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Matthias Arndt
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Käthe Gooßen
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Heinrich Heydt
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Lukas J. Gooßen
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
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14
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Synthesis of 5-cyanopyrazolo[1,5-a]pyridine derivatives via tandem reaction and their optical properties. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2014.11.124] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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15
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Mohan DC, Ravi C, Rao SN, Adimurthy S. Copper-mediated synthesis of pyrazolo[1,5-a]pyridines through oxidative linkage of C–C/N–N bonds. Org Biomol Chem 2015; 13:3556-60. [DOI: 10.1039/c5ob00018a] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Copper-mediated synthesis of pyrazolo[1,5-a]pyridine-3-carboxylates through oxidative linkage of C–C and N–N bonds under mild reaction conditions with broad substrate scope is described.
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Affiliation(s)
- Darapaneni Chandra Mohan
- Academy of Scientific & Innovative Research
- CSIR–Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Chitrakar Ravi
- Academy of Scientific & Innovative Research
- CSIR–Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Sadu Nageswara Rao
- Academy of Scientific & Innovative Research
- CSIR–Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
| | - Subbarayappa Adimurthy
- Academy of Scientific & Innovative Research
- CSIR–Central Salt & Marine Chemicals Research Institute
- Bhavnagar-364 002
- India
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16
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Arigela RK, Samala S, Mahar R, Shukla SK, Kundu B. Synthesis of Triazolo Isoquinolines and Isochromenes from 2-Alkynylbenzaldehyde via Domino Reactions under Transition-Metal-Free Conditions. J Org Chem 2013; 78:10476-84. [DOI: 10.1021/jo401929q] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
| | | | | | | | - Bijoy Kundu
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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17
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Synthesis of 1,5-diphenylpent-3-en-1-yne derivatives utilizing an aqueous B-alkyl Suzuki cross coupling reaction. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.07.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Oh CH, Kim JH, Piao L, Yu J, Kim SY. Gold carbenes from substituted propargyl acetates: intramolecular ene-type reactions to 2-acetoxynaphthalene derivatives. Chemistry 2013; 19:10501-5. [PMID: 23794486 DOI: 10.1002/chem.201301384] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Indexed: 11/09/2022]
Affiliation(s)
- Chang Ho Oh
- Department of Chemistry and Research Institute for Natural Science, Hanyang University, Sungdong-Gu, Seoul 133-791, Korea
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19
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Hoashi Y, Takai T, Kotani E, Koike T. Synthesis of pyrazolo[1,5-a]pyridines by thermal intramolecular cyclization. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.02.078] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Kloeckner U, Finkbeiner P, Nachtsheim BJ. Iodide-catalyzed halocyclization/cycloaddition/elimination cascade reaction. J Org Chem 2013; 78:2751-6. [PMID: 23373844 DOI: 10.1021/jo302676g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
An iodocyclization reaction of o-alkynylphenyl carboxaldehydes is reported that is truly catalytic with respect to the electrophilic iodine source. With a combination of tetrabutylammonium iodide (TBAI), Oxone as non-nucleophilic and easy to handle co-oxidant, and fluorinated protic solvents, highly substituted 1-naphthalenones could be prepared in high yields of up to 91%.
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Affiliation(s)
- Ulrich Kloeckner
- Institute of Organic Chemistry, Eberhard Karls University Tuebingen, Auf der Morgenstelle 18, D-72076 Tuebingen, Germany
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21
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Fustero S, Bello P, Miró J, Sánchez-Roselló M, Maestro MA, González J, del Pozo C. Gold catalyzed stereoselective tandem hydroamination-formal aza-Diels-Alder reaction of propargylic amino esters. Chem Commun (Camb) 2013; 49:1336-8. [PMID: 23303342 DOI: 10.1039/c2cc37796a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A gold-catalyzed tandem intramolecular hydroamination-formal aza-Diels-Alder reaction of propargylic amino esters is described. The overall process leads to the formation of a tetracyclic framework as a single diastereoisomer, with the creation of four bonds and five stereocenters.
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Affiliation(s)
- Santos Fustero
- Dept. de Química Orgánica, Universidad de Valencia, E-46100, Burjassot, Spain.
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22
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Li YJ, Huang HM, Ju J, Jia JH, Han L, Ye Q, Yu WB, Gao JR. Iodine mediated reaction of quinones and N-substituted amino esters to 2-substituted benzo[f]isoindole-4,9-diones. RSC Adv 2013. [DOI: 10.1039/c3ra44095h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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23
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Ling L, Chen J, Song J, Zhang Y, Li X, Song L, Shi F, Li Y, Wu C. From N-benzoylpyridinium imides to pyrazolo[1,5-a]pyridines: a mechanistic discussion on a stoichiometric Cu protocol. Org Biomol Chem 2013; 11:3894-902. [DOI: 10.1039/c3ob40448j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Batchu H, Bhattacharyya S, Batra S. Iodine-Mediated Intramolecular Electrophilic Aromatic Cyclization in Allylamines: A General Route to Synthesis of Quinolines, Pyrazolo[4,3-b]pyridines, and Thieno[3,2-b]pyridines. Org Lett 2012; 14:6330-3. [DOI: 10.1021/ol303109m] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Harikrishna Batchu
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, PO Box 173, Lucknow 226001, India
| | - Soumya Bhattacharyya
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, PO Box 173, Lucknow 226001, India
| | - Sanjay Batra
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, PO Box 173, Lucknow 226001, India
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