1
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Biswas S, Balha M, Das S, Pan SC. Organocatalytic Asymmetric Reaction between α‐Cyano Enones and Dioxindoles: Synthesis of Dihydrofuran‐Spirooxindoles. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200359] [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)
- Subhankar Biswas
- Indian Institute of Technology Guwahati Chemistry IITG Road 781039 Guwahati INDIA
| | - Megha Balha
- Indian Institute of Technology Guwahati Chemistry IITG Road 781039 Guwahati INDIA
| | - Suman Das
- Indian Institute of Technology Guwahati Chemistry IITG Road 781039 Guwahati INDIA
| | - Subhas Chandra Pan
- Indian Institute of Technology Guwahati Chemistry Department of Chemistry, Indian Institute of Technology Guwahati 781039 Guwahati INDIA
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2
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Pramanik S, Jagadeesh C, Chatterjee A, Debnath SC, Saha J. Access to densely functionalized spirocyclopentenonyl oxindole frameworks via aza- and carbo-Piancatelli rearrangement. Org Biomol Chem 2022; 20:5249-5253. [PMID: 35730444 DOI: 10.1039/d2ob00883a] [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
A new strategy for access to spirocyclopentenonyl oxindole frameworks is disclosed. Suitably anchored furfuryl alcohol at C3 of an oxindole was used for the aza-Piancatelli rearrangement, which furnished spirocyclic aminocyclopentenone frameworks with catalytic phosphomolybdic acid. The scope of the transformation was extended to the carbo-Piancatelli rearrangement with various indole derivatives.
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Affiliation(s)
- Sourav Pramanik
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India. .,Department of Chemistry, University of Kalyani, Nadia, W.B-741235, India
| | - Chenna Jagadeesh
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India.
| | - Ayan Chatterjee
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India.
| | | | - Jaideep Saha
- Department of Biological and Synthetic Chemistry, Centre of Biomedical Research, SGPGIMS Campus, Lucknow 226014, India.
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3
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Xu L, Li H, Xing L, Yang Q, Tang Y, Cai Y. Retro-Aza-Piancatelli Rearrangement Triggered Cascade Reaction of Methyl Furylacrylates with Anilines to Access Cyclopenta[ b]pyrrolidinones. J Org Chem 2021; 87:855-865. [PMID: 34905369 DOI: 10.1021/acs.joc.1c02546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A novel aza-Piancatelli rearrangement triggered cascade reaction has been developed by utilizing methyl furylacrylates as a new type of functionalized furanoxonium ion precursor, permitting rapid and flexible construction of diverse cyclopenta[b]pyrrolidinone derivatives. The unprecedented and highly efficient bicyclic γ-lactam product formation is originated from an unusual retro-aza-Piancatelli rearrangement of the major cis-fused multifunctionalized cyclopentenone to the minor trans-fused one followed by a lactamization reaction.
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Affiliation(s)
- Lei Xu
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Hongxiang Li
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Liuzhuang Xing
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Qian Yang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yurong Tang
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - Yunfei Cai
- School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
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4
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Gulati S, John SE, Shankaraiah N. Microwave-assisted multicomponent reactions in heterocyclic chemistry and mechanistic aspects. Beilstein J Org Chem 2021; 17:819-865. [PMID: 33968258 PMCID: PMC8077743 DOI: 10.3762/bjoc.17.71] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/01/2021] [Indexed: 12/13/2022] Open
Abstract
Microwave-assisted (MWA) multicomponent reactions (MCRs) have successfully emerged as one of the useful tools in the synthesis of biologically relevant heterocycles. These reactions are strategically employed for the generation of a variety of heterocycles along with multiple point diversifications. Over the last few decades classical MCRs such as Ugi, Biginelli, etc. have witnessed enhanced yield and efficiency with microwave assistance. The highlights of MWA-MCRs are high yields, reduced reaction time, selectivity, atom economy and simpler purification techniques, such an approach can accelerate the drug discovery process. The present review focuses on the recent advances in MWA-MCRs and their mechanistic insights over the past decade and shed light on its advantage over the conventional approach.
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Affiliation(s)
- Shivani Gulati
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Stephy Elza John
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
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5
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Cacheux F, Le Goff G, Ouazzani J, Bignon J, Retailleau P, Marinetti A, Voituriez A, Betzer JF. The Piancatelli rearrangement of non-symmetrical furan-2,5-dicarbinols for the synthesis of highly functionalized cyclopentenones. Org Chem Front 2021. [DOI: 10.1039/d1qo00268f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Piancatelli rearrangement on substituted non-symmetrical furan-2,5-dicarbinols has been developed using an effective combination of microwave activation and Lewis acid catalyst.
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Affiliation(s)
- Fanny Cacheux
- Université Paris-Saclay
- CNRS
- Institut de Chimie des Substances Naturelles
- UPR 2301
- Gif-sur-Yvette
| | - Géraldine Le Goff
- Université Paris-Saclay
- CNRS
- Institut de Chimie des Substances Naturelles
- UPR 2301
- Gif-sur-Yvette
| | - Jamal Ouazzani
- Université Paris-Saclay
- CNRS
- Institut de Chimie des Substances Naturelles
- UPR 2301
- Gif-sur-Yvette
| | - Jérôme Bignon
- Université Paris-Saclay
- CNRS
- Institut de Chimie des Substances Naturelles
- UPR 2301
- Gif-sur-Yvette
| | - Pascal Retailleau
- Université Paris-Saclay
- CNRS
- Institut de Chimie des Substances Naturelles
- UPR 2301
- Gif-sur-Yvette
| | - Angela Marinetti
- Université Paris-Saclay
- CNRS
- Institut de Chimie des Substances Naturelles
- UPR 2301
- Gif-sur-Yvette
| | - Arnaud Voituriez
- Université Paris-Saclay
- CNRS
- Institut de Chimie des Substances Naturelles
- UPR 2301
- Gif-sur-Yvette
| | - Jean-François Betzer
- Université Paris-Saclay
- CNRS
- Institut de Chimie des Substances Naturelles
- UPR 2301
- Gif-sur-Yvette
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6
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Vonteddu NR, Solanke PR, Nayani K, Chandrasekhar S. Cation Triggered Domino Aza-Piancatelli Rearrangement/Friedel-Crafts Alkylation of Indole-Tethered Furfuyl Alcohols to Access Cycloocta[ b]indole Core of Alkaloids. Org Lett 2020; 22:8555-8560. [PMID: 33079545 DOI: 10.1021/acs.orglett.0c03155] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A domino approach to bridged cycloocta[b]indolone through a cascade of aza-Piancatelli rearrangement/Friedel-Crafts alkylation is developed. This transformation has been realized by reaction of an indole-tethered 2-furylcarbinol and substituted aniline in the presence of a Lewis acid to initiate aza-Piancatelli rearrangement followed by an in situ intramolecular Friedel-Crafts alkylation to access bridged tetracyclic frameworks in one pot.
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Affiliation(s)
- Nagarjuna Reddy Vonteddu
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.,Cipla Ltd, MIDC Patalganga, Rasayani, Maharashtra 410220, India
| | - Pooja R Solanke
- 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
| | - Kiranmai Nayani
- Department of Organic Synthesis and Process Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500007, India
| | - Srivari Chandrasekhar
- 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
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7
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Chen LJ, Yu JH, He B, Xie JW, Liu YX, Zhu WD. Umpolung Strategy for the Synthesis of Chiral Dispiro[2-amino-4,5-dihydrofuran-3-carbonitrile]bisoxindoles. J Org Chem 2020; 85:7793-7802. [PMID: 32469521 DOI: 10.1021/acs.joc.0c00418] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Based on a novel umpolung strategy, an efficient and highly enantioselective cascade aldol/cyclization/tautomerization of the 2-(2-oxoindolin-3-yl)malononitrile to active carbonyl compounds with excellent diastereo- and enantioselectivity has been developed. Also, various enantio-enriched multifunctional dispiro[2-amino-4,5-dihydrofuran-3-carbonitrile]bisoxindoles with adjacent spiro-stereocenters were conveniently obtained by this novel methodology. Also, the dispiro[2-amino-4,5-dihydrofuran-3-carbonitrile]bisoxindoles were easily transformed into structurally complex molecules without any effect on the diastereo- and enantioselectivity.
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Affiliation(s)
- Li-Jun Chen
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, P. R. China
| | - Jin-Hang Yu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, P. R. China
| | - Bin He
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, P. R. China
| | - Jian-Wu Xie
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, P. R. China
| | - Yuan-Xiu Liu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, P. R. China
| | - Wei-Dong Zhu
- Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, Jinhua 321004, P. R. China
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8
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Shen B, He Q, Dong S, Liu X, Feng X. A chiral cobalt(ii) complex catalyzed enantioselective aza-Piancatelli rearrangement/Diels-Alder cascade reaction. Chem Sci 2020; 11:3862-3867. [PMID: 34122854 PMCID: PMC8152720 DOI: 10.1039/d0sc00542h] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
A chiral N,N′-dioxide/cobalt(ii) complex catalyzed highly diastereoselective and enantioselective tandem aza-Piancatelli rearrangement/intramolecular Diels–Alder reaction has been disclosed. Various valuable hexahydro-2a,5-epoxycyclopenta[cd]isoindoles bearing six contiguous stereocenters have been obtained in good yields with excellent diastereo- and enantio-selectivities from a wide range of both readily available 2-furylcarbinols and N-(furan-2-ylmethyl)anilines. An asymmetric aza-Piancatelli rearrangement/Diels–Alder cascade reaction between 2-furylcarbinols and N-(furan-2-ylmethyl)anilines was realized by using a chiral N,N′-dioxide/cobalt(ii) complex catalyst.![]()
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Affiliation(s)
- Bin Shen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Qianwen He
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Shunxi Dong
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University Chengdu 610064 China
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9
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Zhou LM, Qu RY, Yang GF. An overview of spirooxindole as a promising scaffold for novel drug discovery. Expert Opin Drug Discov 2020; 15:603-625. [PMID: 32106717 DOI: 10.1080/17460441.2020.1733526] [Citation(s) in RCA: 120] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Introduction: Spirooxindole, a unique and versatile scaffold, has been widely studied in some fields such as pharmaceutical chemistry and synthetic chemistry. Especially in the application of medicine, quite a few compounds featuring spirooxindole motif have displayed excellent and broad pharmacological activities. Many identified candidate molecules have been used in clinical trials, showing promising prospects.Areas covered: This article offers an overview of different applications and developments of spirooxindoles (including the related natural products and their derivatives) in the process of drug innovation, including such as in anticancer, antimicrobial, anti-inflammatory, analgesic, antioxidant, antimalarial, and antiviral activities. Furthermore, the crucial structure-activity relationships, molecular mechanisms, pharmacokinetic properties, and main synthetic methods of spirooxindoles-based derivatives are also reviewed.Expert opinion: Recent progress in the biological activity profiles of spirooxindole derivatives have demonstrated their significant position in present-day drug discovery. Furthermore, we believe that the multidirectional development of novel drugs containing this core scaffold will continue to be the research hotspot in medicinal chemistry in the future.
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Affiliation(s)
- Li-Ming Zhou
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
| | - Ren-Yu Qu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
| | - Guang-Fu Yang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, College of Chemistry, Central China Normal University, Wuhan, P. R. China
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10
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Warghude PK, Sabale AS, Bhat RG. Access to highly enantioselective and diastereoselective spirooxindole dihydrofuran fused pyrazolones. Org Biomol Chem 2020; 18:1794-1799. [DOI: 10.1039/d0ob00007h] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Access to highly enantioselective and diastereoselective spirooxindole dihydrofuran fused pyrazolones from MBH-carbonates and pyrazole 4,5-diones.
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Affiliation(s)
- Prakash K. Warghude
- Department of Chemistry
- Main Building
- Indian Institute of Science Education and Research (IISER)-Pune
- Pune
- India
| | - Abhijeet S. Sabale
- Department of Chemistry
- Main Building
- Indian Institute of Science Education and Research (IISER)-Pune
- Pune
- India
| | - Ramakrishna G. Bhat
- Department of Chemistry
- Main Building
- Indian Institute of Science Education and Research (IISER)-Pune
- Pune
- India
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11
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Gutnov AV, Abaev VT, Demidov OP. Betti reaction of 2-naphthol, furfural, and acetamide: an unexpected case of secondary carbo-Piancatelli rearrangement. Chem Heterocycl Compd (N Y) 2019. [DOI: 10.1007/s10593-019-02454-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Balha M, Mondal B, Pan SC. Organocatalytic asymmetric synthesis of dihydrofuran-spirooxindoles from benzylidene malononitriles and dioxindoles. Org Biomol Chem 2019; 17:6557-6561. [DOI: 10.1039/c9ob01199d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first organocatalytic asymmetric synthesis of dihydrofuran-spirooxindoles having a linkage at the 2-position of the dihydrofuran motif has been developed from dioxindoles and benzylidene malononitriles.
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Affiliation(s)
- Megha Balha
- Department of Chemistry
- Indian Institute of Technology
- Guwahati
- India
| | - Buddhadeb Mondal
- Department of Chemistry
- Indian Institute of Technology
- Guwahati
- India
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13
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Verrier C, Moebs-Sanchez S, Queneau Y, Popowycz F. The Piancatelli reaction and its variants: recent applications to high added-value chemicals and biomass valorization. Org Biomol Chem 2018; 16:676-687. [DOI: 10.1039/c7ob02962d] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The conversion of furfuryl alcohols by the Piancatelli reaction (and its C- and N-variants) provided highly functionalized cyclopentenones (intermolecular) and spirocycles (intramolecular).
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14
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Merkushev AA, Strel'nikov VN, Uchuskin MG, Trushkov IV. A simple synthesis of benzofurans by acid-catalyzed domino reaction of salicyl alcohols with N -tosylfurfurylamine. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.09.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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15
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Xu J, Luo Y, Xu H, Chen Z, Miao M, Ren H. Catalyst-Controlled Chemodivergent Modification of Indoles with 2-Furylcarbinols: Piancatelli Reaction vs Cross-Dehydrative Coupling Reaction. J Org Chem 2017; 82:3561-3570. [PMID: 28244319 DOI: 10.1021/acs.joc.7b00090] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A divergent synthetic strategy to functionalize the indole nucleus with readily available 2-furylcarbinols was developed. It was found that the 3-(4-oxo-2-cyclopentenyl)indoles were obtained in moderate to good yields (up to 89%) through Piancatelli reaction catalyzed by ZnCl2, whereas employment of Brønsted acid TFA afforded directly coupled product 3-(2-furyl)indoles in moderate to good yields (up to 87%) via the deprotonation-rearomatization route.
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Affiliation(s)
- Jianfeng Xu
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Yi Luo
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Huaping Xu
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Zhengkai Chen
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Maozhong Miao
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
| | - Hongjun Ren
- Department of Chemistry, Zhejiang Sci-Tech University , Hangzhou, Zhejiang 310018, P. R. China
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16
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Kattela S, Heerdt G, Correia CRD. Non-Covalent Carbonyl-Directed Heck-Matsuda Desymmetrizations: Synthesis of Cyclopentene-Fused Spirooxindoles, Spirolactones, and Spirolactams. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600946] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shivashankar Kattela
- Institute of Chemistry; State University of Campinas; Campinas 13083-970, SP Brazil
| | - Gabriel Heerdt
- Institute of Chemistry; State University of Campinas; Campinas 13083-970, SP Brazil
| | - Carlos R. D. Correia
- Institute of Chemistry; State University of Campinas; Campinas 13083-970, SP Brazil
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17
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Roh HJ, Kim SY, Min BK, Kim JN. An efficient synthesis of dihydrofuranyl spirooxindoles from isatin-derived propargylic alcohols and 1,3-dicarbonyls. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.11.077] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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18
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Affiliation(s)
- Huilin Li
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Rongbiao Tong
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Jianwei Sun
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
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19
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Li H, Tong R, Sun J. Catalytic Enantioselective Aza-Piancatelli Rearrangement. Angew Chem Int Ed Engl 2016; 55:15125-15128. [DOI: 10.1002/anie.201607714] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 09/29/2016] [Indexed: 12/21/2022]
Affiliation(s)
- Huilin Li
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Rongbiao Tong
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
| | - Jianwei Sun
- Department of Chemistry; The Hong Kong University of Science and Technology; Clear Water Bay, Kowloon Hong Kong SAR China
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20
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Yu B, Yu DQ, Liu HM. Spirooxindoles: Promising scaffolds for anticancer agents. Eur J Med Chem 2015; 97:673-98. [DOI: 10.1016/j.ejmech.2014.06.056] [Citation(s) in RCA: 469] [Impact Index Per Article: 52.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2014] [Revised: 06/20/2014] [Accepted: 06/25/2014] [Indexed: 01/22/2023]
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21
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Trushkov IV, Uchuskin MG, Butin AV. Furan's Gambit: Electrophile-Attack-Triggered Sacrifice of Furan Rings for the Intramolecular Construction of Azaheterocycles. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403580] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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22
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Chavan SS, Pathan MY, Thorat SH, Gonnade R, Mulla SAR. A novel one-pot multi-component synthesis of 3,3’-disubstituted oxindole and spirooxindole scaffolds via Sn-catalyzed C(sp3)–H functionalization of azaarenes by sequential Knoevenagel–Michael-cyclization reaction. RSC Adv 2015. [DOI: 10.1039/c5ra16334j] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sn-catalyzed C(sp3)–H bond functionalization of 2-methyl azaarenes/2-(azaaryl)methanes has been achieved for the first time in a one-pot reaction with isatin and active methylene compounds.
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Affiliation(s)
- Santosh S. Chavan
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Mohsinkhan Y. Pathan
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Shridhar H. Thorat
- Centre for Material Characterization
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Rajesh Gonnade
- Centre for Material Characterization
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Shafeek A. R. Mulla
- Chemical Engineering and Process Development Division
- CSIR-National Chemical Laboratory
- Pune-411008
- India
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23
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Arulananda Babu S, Padmavathi R, Ahmad Aslam N, Rajkumar V. Recent Developments on the Synthesis and Applications of Natural Products-Inspired Spirooxindole Frameworks. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2015. [DOI: 10.1016/b978-0-444-63462-7.00008-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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24
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Yin B, Zhang X, Zhang X, Peng H, Zhou W, Liu B, Jiang H. Access to polysubstituted indoles or benzothiophenes via palladium-catalyzed cross-coupling of furfural tosylhydrazones with 2-iodoanilines or 2-iodothiophenols. Chem Commun (Camb) 2015; 51:6126-9. [DOI: 10.1039/c5cc00267b] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Palladium-catalyzed cross-coupling of furfural tosylhydrazones with 2-iodoanilines or 2-iodothiophenols produces polysubstituted indoles or benzothiophenes, respectively.
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Affiliation(s)
- Biaolin Yin
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Xiaoyu Zhang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Xiaoting Zhang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Hui Peng
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
| | - Wen Zhou
- Guangdong Provincial Academy of Chinese Medical Sciences
- Guangzhou
- P. R. China
| | - Bo Liu
- Guangdong Provincial Academy of Chinese Medical Sciences
- Guangzhou
- P. R. China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- P. R. China
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25
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Zhou R, Zhang K, Chen Y, Meng Q, Liu Y, Li R, He Z. P(NMe2)3-mediated reductive [1+4] annulation of isatins with enones: a facile synthesis of spirooxindole-dihydrofurans. Chem Commun (Camb) 2015; 51:14663-6. [DOI: 10.1039/c5cc03676c] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
A novel reductive [1+4] annulation reaction of isatins and enones via Kukhtin–Ramirez adducts is reported.
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Affiliation(s)
- Rong Zhou
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan
- P. R. China
| | - Kai Zhang
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan
- P. R. China
| | - Yusong Chen
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan
- P. R. China
| | - Qiang Meng
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan
- P. R. China
| | - Yiyi Liu
- The State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Tianjin
- P. R. China
| | - Ruifeng Li
- College of Chemistry and Chemical Engineering
- Taiyuan University of Technology
- Taiyuan
- P. R. China
| | - Zhengjie He
- The State Key Laboratory of Elemento-Organic Chemistry
- Nankai University
- Tianjin
- P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering
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27
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Wenz DR, Read de Alaniz J. The Nazarov Cyclization: A Valuable Method to Synthesize Fully Substituted Carbon Stereocenters. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402825] [Citation(s) in RCA: 126] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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28
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Zhang X, Huang L, Peng H, Ji F, Li X, Yin B. Access to fused pyrroles via the reaction of spiro-dienyl ethers with amines involving a chemoselective skeletal rearrangement. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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