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Anwar K, Troyano FJA, Abazid AH, El Yarroudi O, Funes-Ardoiz I, Gómez-Suárez A. Modular Synthesis of Polar Spirocyclic Scaffolds Enabled by Radical Chemistry. Org Lett 2023; 25:3216-3221. [PMID: 37130365 DOI: 10.1021/acs.orglett.3c00869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Herein, we report a highly modular strategy to access spirocyclic scaffolds from abundant starting materials, i.e., cyclic ketones and α-amino or oxamic acids. The sequence proceeds through a straightforward Knoevenagel condensation, followed by a domino Giese-type reaction/base-mediated cyclization process, to deliver a broad scope of polar spirocyclic scaffolds in good to excellent yields. The products can be readily diversified, thus increasing the versatility of our method to gain rapid access to libraries of potential druglike molecules.
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Affiliation(s)
- Khadijah Anwar
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany
| | | | - Ayham H Abazid
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany
| | - Oumayma El Yarroudi
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany
| | - Ignacio Funes-Ardoiz
- Centro de Investigación en Síntesis Química (CISQ), Universidad de La Rioja, 26004 Logroño, Spain
| | - Adrián Gómez-Suárez
- Organic Chemistry, Bergische Universität Wuppertal, Gaußstr. 20, 42119 Wuppertal, Germany
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2
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Xiong Y, Han XX, Lu Y, Wang HJ, Zhang M, Liu XW. Highly diastereoselective synthesis of trifluoromethyl containing spiro[pyrrolidin-3,2′-oxindoles] from N-2,2,2-trifluoroethylsubstituted isatin imines and β,γ-unsaturated α-keto esters. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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3
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Ren JW, Zhao QL, Xiao JA, Xia PJ, Xiang HY, Chen XQ, Yang H. A One-Pot Ring-Opening/Ring-Closure Sequence for the Synthesis of Polycyclic Spirooxindoles. Chemistry 2019; 25:4673-4677. [PMID: 30840339 DOI: 10.1002/chem.201900409] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 02/15/2019] [Indexed: 12/16/2022]
Abstract
One-pot ring-opening/ring-closure process of combining methyleneindolinone with 3-aminooxindole has been developed in this work. Novel polycyclic spirooxindoles were efficiently assembled under mild conditions in high yields (up to 95 %) with moderate to good diastereoselectivities (up to >95:5 d.r.) through simple filtration.
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Affiliation(s)
- Ji-Wei Ren
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
| | - Qing-Lan Zhao
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
| | - Jun-An Xiao
- College of Chemistry and Materials Science, Nanning Normal University, Nanning, 530001, Guangxi, P.R. China
| | - Peng-Ju Xia
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
| | - Hao-Yue Xiang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
| | - Xiao-Qing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
| | - Hua Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, P.R. China
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4
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Sengupta A, Maity S, Mondal A, Ghosh P, Rudra S, Mukhopadhyay C. Pseudo five component reaction towards densely functionalized spiro[indole-3,2'-pyrrole] by picric acid, an efficient syn-diastereoselective catalyst: insight into the diastereoselection on C(sp 3)-C(sp 3) axial conformation. Org Biomol Chem 2019; 17:1254-1265. [PMID: 30656313 DOI: 10.1039/c8ob02849d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A new series of highly-functionalized spiro compounds of pyrrole were synthesized by a one pot, step-economic condensation of isatin, arylamine and β-keto ester catalyzed by wet picric acid. Initially, the reaction was proposed with an expectation of the formation of a multi-spiro heterocyclic framework of highly-substituted piperidine. However, the isomeric compound was characterized to be a five-membered pyrrole derivative with a diverse scope of variations having different types of substituents in the three components respectively. The possibility of formation of various diastereomers around the hindered single bond and the spiro carbon was limited, as only syn products syn-60 and syn-60' were isolated in all the reactions performed under the standard conditions. Probably the reactions were mediated by the si-facial formation of the bonds in a picric acid stabilized charge transfer complex transition state. Also, the manner a molecule achieves the most stabilized energy minimized arrangement with all its substituents in space was studied by DFT calculations where syn-60 was more stable than syn-60'. The studies on the formation of syn-60 and syn-60' were carried out by variation of electronic and steric factors in each of the components of the reactions.
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Affiliation(s)
- Ayon Sengupta
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India.
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5
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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: 2.3] [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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6
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Zeng JC, Xu H, Huang RL, Yu F, Zhang Z. Facile synthesis of polysubstituted 2,3-dihydropyrroles and pyrroles from Mn(OAc)3-promoted oxidative cyclization of alkenes with amines/alkyne esters or enaminone esters. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.03.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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7
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Zhu Y, Guo J, Jin S, Guo J, Bai X, Wang Q, Bu Z. Construction of bridged cyclic N,O-ketal spirooxindoles through a Michael addition/N,O-ketalization sequence. Org Biomol Chem 2018; 16:1751-1759. [DOI: 10.1039/c8ob00306h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first highly diastereoselective TfOH-catalyzed Michael addition/N,O-ketalization sequence of 3-aminooxindoles and ortho-hydroxychalcones was achieved to afford a wide range of bridged cyclic N,O-ketal spirooxindoles in 41–97% yields.
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Affiliation(s)
- Yanshuo Zhu
- Institute of Functional Organic Molecular Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Jia Guo
- Institute of Functional Organic Molecular Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Shaojing Jin
- Institute of Functional Organic Molecular Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Jiaomei Guo
- Institute of Functional Organic Molecular Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Xuguan Bai
- Institute of Functional Organic Molecular Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Qilin Wang
- Institute of Functional Organic Molecular Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
| | - Zhanwei Bu
- Institute of Functional Organic Molecular Engineering
- College of Chemistry and Chemical Engineering
- Henan University
- Kaifeng 475004
- China
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8
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Liu XW, Yang J, Wang GL, Gong Y, Feng TT, Liu XL, Cao Y, Zhou Y, Yuan WC. Molecular Hybridization-Guided Construction of Convolutamydine A-fused β
-Ionone Scaffolds and their Biological Evaluation for Anticancer Activities. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.3027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Xiong-Wei Liu
- Guizhou Medicine Edicine Edible Plant Resources Research and Development Center; Guizhou University; Guiyang 550025 People's Republic of China
| | - Jun Yang
- Guizhou Medicine Edicine Edible Plant Resources Research and Development Center; Guizhou University; Guiyang 550025 People's Republic of China
| | - Guan-Lian Wang
- Guizhou Medicine Edicine Edible Plant Resources Research and Development Center; Guizhou University; Guiyang 550025 People's Republic of China
| | - Yi Gong
- Guizhou Medicine Edicine Edible Plant Resources Research and Development Center; Guizhou University; Guiyang 550025 People's Republic of China
| | - Ting-Ting Feng
- Guizhou Medicine Edicine Edible Plant Resources Research and Development Center; Guizhou University; Guiyang 550025 People's Republic of China
| | - Xiong-Li Liu
- Guizhou Medicine Edicine Edible Plant Resources Research and Development Center; Guizhou University; Guiyang 550025 People's Republic of China
| | - Yu Cao
- Department of Dermatology; Hospital Affiliated to Guiyang Medical College; Guiyang 550025 People's Republic of China
| | - Ying Zhou
- Guizhou Medicine Edicine Edible Plant Resources Research and Development Center; Guizhou University; Guiyang 550025 People's Republic of China
| | - Wei-Cheng Yuan
- Key Laboratory for Asymmetric Synthesis & Chirotechnology of Sichuan Province, Chengdu Institute of Organic Chemistry; Chinese Academy of Sciences; Chengdu 610041 People's Republic of China
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9
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Xu H, Liu HW, Lin HS, Wang GW. Solvent-free iodine-promoted synthesis of 3,2′-pyrrolinyl spirooxindoles from alkylidene oxindoles and enamino esters under ball-milling conditions. Chem Commun (Camb) 2017; 53:12477-12480. [DOI: 10.1039/c7cc08306h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A solvent-free mechanochemical reaction of alkylidene oxindoles with enamino esters via an iodine-promoted tandem Michael/cyclization sequence has been developed to provide a variety of spirocyclic oxindoles in moderate to good yields with excellent diastereoselectivities.
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Affiliation(s)
- Hui Xu
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Hong-Wei Liu
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Hao-Sheng Lin
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Guan-Wu Wang
- CAS Key Laboratory of Soft Matter Chemistry, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials)
- Hefei National Laboratory for Physical Sciences at Microscale, and Department of Chemistry
- University of Science and Technology of China
- Hefei
- P. R. China
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10
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Yang J, Liu XW, Wang DD, Tian MY, Han SN, Feng TT, Liu XL, Mei RQ, Zhou Y. Diversity-oriented one-pot multicomponent synthesis of spirooxindole derivatives and their biological evaluation for anticancer activities. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.10.050] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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11
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Liu XL, Feng TT, Wang DD, Liu HH, Yang C, Li XN, Lin B, Zhao Z, Zhou Y. Synthesis and in vitro evaluation of pyrimidine-fused 3-alkenyloxindoles as potential anticancer agents. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.100] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Liu XL, Feng TT, Jiang WD, Yang C, Tian MY, Jiang Y, Lin B, Zhao Z, Zhou Y. Molecular hybridization-guided 1,3-dipolar cycloaddition reaction enabled pyrimidine-fused spiropyrrolidine oxindoles synthesis as potential anticancer agents. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.08.063] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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1,3-Dipolar cycloaddition enabled isoxazole-fused spiropyrrolidine oxindoles syntheses from 3-methyl-4-nitro-5-alkenyl-isoxazoles and azomethine ylides. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.01.029] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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A facile and efficient synthesis of hexahydro-1H-pyrido[2,3-b]indol-2-one scaffolds via a sequential Michael addition/amidation/reductive cyclization process. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.10.039] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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DMAP-catalyzed Diels–Alder reaction of 3-hydroxy-2-pyrone and methyleneindolinones for the synthesis of spirocyclic oxindoles. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.032] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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