1
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Gao Z, Zhou X, Liu D, Nie B, Lu H, Chen X, Wu J, Li L, Wang X. Phosphine-Catalyzed γ'-Carbon 1,6-Conjugate Addition of α-Succinimide Substituted Allenoates with Para-Quinone Methides: Synthesis of 4-Diarylmethylated 3,4-Disubstituted Maleimides. Molecules 2024; 29:2593. [PMID: 38893468 PMCID: PMC11173458 DOI: 10.3390/molecules29112593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 05/23/2024] [Accepted: 05/30/2024] [Indexed: 06/21/2024] Open
Abstract
In this paper, an interesting γ'-carbon 1,6-conjugate addition for phosphine-catalyzed α-succinimide substituted allenoates has been disclosed. A wide array of substrates was found to participate in the reaction, resulting in the production of diverse 4-diarylmethylated 3,4-disubstituted maleimides with satisfactory to outstanding yields. Furthermore, a plausible mechanism for the reaction was proposed by the investigators.
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Affiliation(s)
| | | | | | | | | | | | | | - Lei Li
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, China; (X.Z.); (D.L.); (B.N.); (H.L.); (X.C.); (J.W.)
| | - Xuekun Wang
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng 252059, China; (X.Z.); (D.L.); (B.N.); (H.L.); (X.C.); (J.W.)
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2
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Adris D, Taskesenligil Y, Akyildiz V, Essiz S, Saracoglu N. Solvent-Mediated Tunable Regiodivergent C6- and N1-Alkylations of 2,3-Disubstituted Indoles with p-Quinone Methides. J Org Chem 2023; 88:3132-3147. [PMID: 36779866 PMCID: PMC9990074 DOI: 10.1021/acs.joc.2c02937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Indium-catalyzed, solvent-enabled regioselective C6- or N1-alkylations of 2,3-disubstituted indoles with para-quinone methides are developed under mild conditions. Notably, highly selective and switchable alkylations were selectively achieved by adjusting the reaction conditions. Moreover, scalability and further transformations of the alkylation products are demonstrated, and this operationally simple methodology is amenable to the late-stage C6-functionalization of the indomethacin drug. The reaction pathways were explained with the support of experimental and density functional theory studies.
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Affiliation(s)
- Douaa Adris
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum 25240, Türkiye
| | - Yunus Taskesenligil
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum 25240, Türkiye
| | - Volkan Akyildiz
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum 25240, Türkiye
| | - Selcuk Essiz
- Department of Medical Services and Techniques, Vocational School of Health Services, Hakkari University, Hakkari 30000, Türkiye
| | - Nurullah Saracoglu
- Department of Chemistry, Faculty of Sciences, Atatürk University, Erzurum 25240, Türkiye
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3
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Roy D, Anas M, Manhas A, Saha S, Kumar N, Panda G. Synthesis, biological evaluation, Structure − Activity relationship studies of quinoline-imidazole derivatives as potent antimalarial agents. Bioorg Chem 2022; 121:105671. [DOI: 10.1016/j.bioorg.2022.105671] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 01/24/2022] [Accepted: 02/07/2022] [Indexed: 12/22/2022]
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4
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Kumar S, Vaishanv NK, Mohanan K. Efficient Construction of 3‐Fluoroalkylated Oxindoles Enabled by Zwitterion Catalysis. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sandeep Kumar
- Central Drug Research Institute Medicinal and Process Chemistry Division Lucknow INDIA
| | | | - Kishor Mohanan
- CSIR-Central Drug Research Institute Medicinal and Process Chemistry Sector-10Jankipuram ExtensionSitapur Road 226031 Lucknow INDIA
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5
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Roy D, Kaul G, Akhir A, Sharma AK, Saha S, Chopra S, Panda G. Discovery and Biological Evaluation of Novel Diarylmethyl Amines Active against Drug Resistant
S. aureus
and
Enterococcus. ChemistrySelect 2022. [DOI: 10.1002/slct.202103904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Deblina Roy
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Department of Chemistry Institute of Science Banaras Hindu University Varanasi 221005 UP India
| | - Grace Kaul
- Division of Microbiology CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi 110001 India
| | - Abdul Akhir
- Division of Microbiology CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
| | - Ashok Kumar Sharma
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
| | - Satyen Saha
- Department of Chemistry Institute of Science Banaras Hindu University Varanasi 221005 UP India
| | - Sidharth Chopra
- Division of Microbiology CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi 110001 India
| | - Gautam Panda
- Medicinal and Process Chemistry Division CSIR-Central Drug Research Institute, Sector 10, Jankipuram Extension Sitapur Road Lucknow 226031 India
- Academy of Scientific and Innovative Research New Delhi 110001 India
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6
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Ranga PK, Ahmad F, Singh G, Tyagi A, Vijaya Anand R. Recent advances in the organocatalytic applications of cyclopropene- and cyclopropenium-based small molecules. Org Biomol Chem 2021; 19:9541-9564. [PMID: 34704583 DOI: 10.1039/d1ob01549d] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The development of novel small molecule-based catalysts for organic transformations has increased noticeably in the last two decades. A very recent addition to this particular research area is cyclopropene- and cyclopropenium-based catalysts. At one point in time, particularly in the mid-20th century, much attention was focused on the structural aspects and physical properties of cyclopropene-based compounds. However, a paradigm shift was observed in the late 20th century, and the focus shifted to the synthetic utility of these compounds. In fact, a wide range of cyclopropene derivatives have been found serving as valuable synthons for the construction of carbocycles, heterocycles and other useful organic compounds. In the last few years, the catalytic applications of cyclopropene/cyclopropenium-based compounds have been uncovered and many synthetic protocols have been developed using cyclopropene-based compounds as organocatalysts. Therefore, the main objective of this review is to highlight recent developments in the catalytic applications of cyclopropene-based small molecules in different areas of organocatalysis such as phase-transfer catalysis (PTC), Brønsted base catalysis, hydrogen-bond donor catalysis, nucleophilic carbene catalysis, and electrophotocatalysis developed within the past two decades.
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Affiliation(s)
- Pavit K Ranga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
| | - Feroz Ahmad
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
| | - Gurdeep Singh
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
| | - Akshi Tyagi
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, S.A.S Nagar, Manauli (PO), Punjab - 140306, India.
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7
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Wu G, Li T, Liu F, Zhao Y, Ma S, Tang S, Xie X, She X. Thiourea catalyzed 1,6-conjugate addition of indoles to para-quinone methides. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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8
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Ranga PK, Ahmad F, Nager P, Rana PS, Vijaya Anand R. Bis(amino)cyclopropenium Ion as a Hydrogen-Bond Donor Catalyst for 1,6-Conjugate Addition Reactions. J Org Chem 2021; 86:4994-5010. [PMID: 33721500 DOI: 10.1021/acs.joc.0c02940] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The catalytic application of the bis(amino)cyclopropenium ion has been investigated in conjugate addition reactions. The hydrogen atom, which is attached to the cyclopropene ring of bis(amino)cyclopropenium salts, is moderately acidic and can potentially serve as a hydrogen-bond donor catalyst in some organic transformations. This hypothesis has been successfully realized in the 1,6-conjugate addition reactions of p-quinone methides with various nucleophiles such as indole, 2-naphthol, thiols, phenols, and so forth. The spectroscopic studies (NMR and UV-vis) as well as the deuterium isotope labeling studies clearly revealed that the hydrogen atom (C-H) that is present in the cyclopropene ring of the catalyst is indeed solely responsible for catalyzing these transformations. In addition, these studies also strongly indicate that the C-H hydrogen of the cyclopropene ring activates the carbonyl group of the p-quinone methide through hydrogen bonding.
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Affiliation(s)
- Pavit Kumar Ranga
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, Manauli (P.O.), S. A. S. Nagar, Punjab 140306, India
| | - Feroz Ahmad
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, Manauli (P.O.), S. A. S. Nagar, Punjab 140306, India
| | - Prashant Nager
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, Manauli (P.O.), S. A. S. Nagar, Punjab 140306, India
| | - Prabhat Singh Rana
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, Manauli (P.O.), S. A. S. Nagar, Punjab 140306, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Sector 81, Knowledge City, Manauli (P.O.), S. A. S. Nagar, Punjab 140306, India
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9
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Li H, Liu D, Chen L, Xu H, Lu H. Alkoxylation of para-Quinone Methides via Bismuth Complex Catalyzed 1,6-Addition Reactions of Alcohols. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202103018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Kumaran S, Prabhakaran M, Mariyammal N, Parthasarathy K. Catalyst-free 1,6-conjugate addition of indoles and 4-hydroxycoumarins to para-quinone methides: synthesis of unsymmetrical triarylmethanes. Org Biomol Chem 2020; 18:7837-7841. [PMID: 32996543 DOI: 10.1039/d0ob01789b] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalyst-free 1,6-conjugate addition of indoles and 4-hydroxycoumarins to para-quinone methides is reported. This protocol allowed us to access a range of unsymmetrical triarylmethanes in good to excellent yields. The outlined procedure is operationally simple, efficient, atom and step economical. The synthesized heterocyclic triarylmethanes were further converted into highly substituted indoloisoquinolines and pyranochromenones via metal-catalyzed C-H activation/annulation.
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Affiliation(s)
- Subramani Kumaran
- Department of Organic Chemistry, University of Madras, Guindy Campus, Tamil Nadu, Chennai 600025, India.
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11
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Lima CGS, Pauli FP, Costa DCS, de Souza AS, Forezi LSM, Ferreira VF, de Carvalho da Silva F. para
-Quinone Methides as Acceptors in 1,6-Nucleophilic Conjugate Addition Reactions for the Synthesis of Structurally Diverse Molecules. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901796] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Carolina G. S. Lima
- Departamento de Química Orgânica; Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho 24020-150 Niterói RJ Brazil
| | - Fernanda P. Pauli
- Departamento de Química Orgânica; Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho 24020-150 Niterói RJ Brazil
| | - Dora C. S. Costa
- Departamento de Química Orgânica; Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho 24020-150 Niterói RJ Brazil
| | - Acácio S. de Souza
- Departamento de Química Orgânica; Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho 24020-150 Niterói RJ Brazil
| | - Luana S. M. Forezi
- Departamento de Química Orgânica; Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho 24020-150 Niterói RJ Brazil
| | - Vitor F. Ferreira
- Departamento de Tecnologia Farmacêutica; Universidade Federal Fluminense; 24241-000 Niterói RJ Brazil
| | - Fernando de Carvalho da Silva
- Departamento de Química Orgânica; Instituto de Química; Universidade Federal Fluminense; Campus do Valonguinho 24020-150 Niterói RJ Brazil
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12
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Maripally N, Reddy VR, Donthi R, Mutyala R, Chandra R. DMAP catalyzed addition-cyclization reaction of 2-hydroxyphenyl-para-quinone methide with nitroalkenes: Facile entry into highly substituted chromane derivatives. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151554] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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13
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Liang X, Xu H, Li H, Chen L, Lu H. Recyclable Bismuth Complex Catalyzed 1,6-Conjugate Addition of Various Nucleophiles to para
-Quinone Methides: Expedient Access to Unsymmetrical Diaryl- and Triarylmethanes. European J Org Chem 2020. [DOI: 10.1002/ejoc.201901732] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xianghao Liang
- School of Environmental and Chemical Engineering; Jiangsu University of Science and Technology; 212003 Zhenjiang Jiangsu China
| | - Haiyan Xu
- School of Environmental and Chemical Engineering; Jiangsu University of Science and Technology; 212003 Zhenjiang Jiangsu China
| | - Hanlin Li
- School of Environmental and Chemical Engineering; Jiangsu University of Science and Technology; 212003 Zhenjiang Jiangsu China
| | - Lizhuang Chen
- School of Environmental and Chemical Engineering; Jiangsu University of Science and Technology; 212003 Zhenjiang Jiangsu China
| | - Hongfei Lu
- School of Environmental and Chemical Engineering; Jiangsu University of Science and Technology; 212003 Zhenjiang Jiangsu China
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14
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Nan GM, Li X, Yao TY, Yan TX, Wen LR, Li M. InCl3-catalyzed 5-exo-dig cyclization/1,6-conjugate addition of N-propargylamides with p-QMs to construct oxazole derivatives. Org Biomol Chem 2020; 18:1780-1784. [DOI: 10.1039/c9ob02651g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An InCl3-catalyzed tandem intramolecular 5-exo-dig cyclization/1,6-conjugate addition/aromatization of N-propargylamides with p-QMs to produce oxazoles tethering diarylmethane has been successfully developed.
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Affiliation(s)
- Guang-Ming Nan
- University and College Key Lab of Natural Product Chemistry and Application in Xinjiang
- Yili Normal University
- Yining 835000
- China
| | - Xue Li
- University and College Key Lab of Natural Product Chemistry and Application in Xinjiang
- Yili Normal University
- Yining 835000
- China
| | - Tian-Yu Yao
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao 266042
- China
| | - Ting-Xun Yan
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao 266042
- China
| | - Li-Rong Wen
- State Key Laboratory Base of Eco-Chemical Engineering
- College of Chemistry and Molecular Engineering
- Qingdao University of Science & Technology
- Qingdao 266042
- China
| | - Ming Li
- University and College Key Lab of Natural Product Chemistry and Application in Xinjiang
- Yili Normal University
- Yining 835000
- China
- State Key Laboratory Base of Eco-Chemical Engineering
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15
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Kshatriya R, Jejurkar VP, Saha S. Advances in The Catalytic Synthesis of Triarylmethanes (TRAMs). European J Org Chem 2019. [DOI: 10.1002/ejoc.201900465] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Rajpratap Kshatriya
- Department of Dyestuff Technology; Institute of Chemical Technology; 400019 Mumbai, N. P. Marg, Matunga, Mumbai India
| | - Valmik P. Jejurkar
- Department of Dyestuff Technology; Institute of Chemical Technology; 400019 Mumbai, N. P. Marg, Matunga, Mumbai India
| | - Satyajit Saha
- Department of Dyestuff Technology; Institute of Chemical Technology; 400019 Mumbai, N. P. Marg, Matunga, Mumbai India
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16
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Vaishanv NK, Gupta AK, Kant R, Mohanan K. Fluoride-Mediated α-Selective 1,6-Conjugate Addition of Allenic Esters to p-Quinone Methides. J Org Chem 2018; 83:8759-8767. [DOI: 10.1021/acs.joc.8b01074] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
| | - Ashis Kumar Gupta
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | | | - Kishor Mohanan
- Academy of Scientific and Innovative Research, New Delhi 110001, India
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17
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Synthesis of heteroarylated ketones via bismuth(III) triflate-promoted regioselective 1,4- and 1,6-additions of electron-rich heteroarenes to cyclic enones and dienones. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.04.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Jadhav AS, Pankhade YA, Vijaya Anand R. Exploring Gold Catalysis in a 1,6-Conjugate Addition/Domino Electrophilic Cyclization Cascade: Synthesis of Cyclohepta[b]indoles. J Org Chem 2018; 83:8615-8626. [DOI: 10.1021/acs.joc.8b00607] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Abhijeet S. Jadhav
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City,
Sector 81, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
| | - Yogesh A. Pankhade
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City,
Sector 81, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences, Indian Institute of Science Education and Research (IISER) Mohali, Knowledge City,
Sector 81, S. A. S. Nagar, Manauli (PO), Punjab 140306, India
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19
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Zhou Y, Cao WB, Zhang LL, Xu XP, Ji SJ. Ag(I)-Promoted Dehydroxylation and Site-Selective 1,7-Disulfonylation of Diaryl(1H-indol-2-yl)methanols. J Org Chem 2018; 83:6056-6065. [DOI: 10.1021/acs.joc.8b00721] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yu Zhou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Wen-Bin Cao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Ling-Ling Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Xiao-Ping Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215123, P. R. China
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20
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Mondal S, Roy D, Jaiswal MK, Panda G. A green synthesis of unsymmetrical triarylmethanes via indium (III) triflate catalyzed Friedel Crafts alkylation of o -hydroxy bisbenzylic alcohols under solvent free conditions. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2017.11.049] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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21
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Zhang ZP, Xie KX, Yang C, Li M, Li X. Asymmetric Synthesis of Dihydrocoumarins through Chiral Phosphoric Acid-Catalyzed Cycloannulation of para-Quinone Methides and Azlactones. J Org Chem 2017; 83:364-373. [DOI: 10.1021/acs.joc.7b02750] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zhi-Pei Zhang
- State key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Kai-Xue Xie
- State key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Chen Yang
- State key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Man Li
- State key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
| | - Xin Li
- State key Laboratory of Elemento-Organic
Chemistry, College of Chemistry, Collaborative Innovation Center of
Chemical Science and Engineering, Nankai University, Tianjin 300071, China
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22
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Mahesh S, Paluru DK, Ahmad F, Patil S, Kant G, Anand RV. Synthesis of Indolizine-Containing Diaryl- and Triarylmethanes through a Cu-Catalyzed Domino Cyclization of 2-(2-Enynyl)pyridines. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700419] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Dilip K. Paluru
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Feroz Ahmad
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Swati Patil
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Guddi Kant
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences; Indian Institute of Science Education and Research (IISER) Mohali; Sector 81, Knowledge City, S. A. S. Nagar Manauli (PO Punjab- 140306 India
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Jadhav AS, Anand RV. 1,6-Conjugate addition of zinc alkyls to para-quinone methides in a continuous-flow microreactor. Org Biomol Chem 2017; 15:56-60. [DOI: 10.1039/c6ob02277d] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
An efficient protocol has been developed for the 1,6-conjugate addition of zinc alkyls to p-quinone methides under continuous-flow using a microreactor.
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Affiliation(s)
- Abhijeet S. Jadhav
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- Manauli (PO)
- India
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24
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Mahesh S, Kant G, Anand RV. B(C6F5)3 catalysed 1,6-conjugate allylation of para-quinone methides: expedient access to allyl diarylmethanes. RSC Adv 2016. [DOI: 10.1039/c6ra19069c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient protocol for the synthesis of unsymmetrical allyl diarylmethanes through a Lewis acid catalysed 1,6-conjugate addition of allylsilanes to para-quinone methides is described.
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Affiliation(s)
- Sriram Mahesh
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- India
| | - Guddi Kant
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- India
| | - Ramasamy Vijaya Anand
- Department of Chemical Sciences
- Indian Institute of Science Education and Research (IISER) Mohali
- India
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