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Du J, Li YF, Ding CH. Recent advances of Pd-p-allyl zwitterions in cycloaddition reactions. CHINESE CHEM LETT 2023. [DOI: 10.1016/j.cclet.2023.108401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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2
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A straightforward access to 2-hydroxyoxazino[3,2-f ]phenanthridines from phenanthridine, oxalylacetylenes and water. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hajinasiri R. Acetylenic Esters in Organic Synthesis. Synlett 2022. [DOI: 10.1055/s-0040-1719916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractActivated acetylenic substrates such as acetylenic esters and alkyl propiolates are very important in organic synthesis. Due to their electron deficiency, these compounds are widely used in combinatorial and multicomponent reactions, enabling the synthesis of a large variety of novel compounds. In addition, these substrates are powerful Michael acceptors and convenient dienophiles and dipolarophiles in Diels–Alder and 1,3-dipolar cycloaddition reactions. The addition of different nucleophiles, primarily phosphorus, nitrogen or sulfur, to the triple bonds of these substrates produces key intermediates, such as Tebby and Huisgen zwitterions, which can lead to designing pathways toward the generation of spirocyclic and polycyclic compounds. This account highlights recent studies on the chemistry of acetylenic esters and their applications in organic synthesis.1 Introduction2 Synthesis of Acyclic and Monocyclic Compounds3 Synthesis of Spirocyclic Compounds4 Synthesis of Polycyclic Compounds5 Conclusion
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Galeev AR, Moroz AA, Dmitriev MV, Maslivets AN. Cycloaddition of Huisgen 1,4-dipoles: synthesis and rapid epimerization of functionalized spiropyrido[2,1- b][1,3]oxazine-pyrroles and related products. RSC Adv 2021; 12:578-587. [PMID: 35424489 PMCID: PMC8694240 DOI: 10.1039/d1ra08384h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 12/15/2021] [Indexed: 11/23/2022] Open
Abstract
1,4-Dipolar cycloaddition has emerged as a powerful tool for the synthesis of various cyclic compounds. In the present work, 1H-pyrrole-2,3-diones are proposed as new dipolarophiles for 1,4-dipolar cycloaddition. Their [4 + 2] cycloaddition with dipoles generated from dimethyl acetylenedicarboxylate and pyridine was found to proceed regioselectively affording spiro[pyrido[2,1-b][1,3]oxazine-2,3'-pyrroles] as diastereomeric mixtures which exist in rapid equilibrium in solution. It was established that this phenomenon of rapid epimerization is a characteristic of other similar spiropyrido[2,1-b][1,3]oxazines and even related spiroquinolizines, which was demonstrated by the investigation of related products of previously reported, and reproduced in this work, 1,4-dipolar cycloaddition reactions.
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Affiliation(s)
- Andrew R Galeev
- Department of Chemistry, Perm State University ul. Bukireva 15 Perm 614068 Russia
| | - Anna A Moroz
- Department of Chemistry, Perm State University ul. Bukireva 15 Perm 614068 Russia
| | - Maksim V Dmitriev
- Department of Chemistry, Perm State University ul. Bukireva 15 Perm 614068 Russia
| | - Andrey N Maslivets
- Department of Chemistry, Perm State University ul. Bukireva 15 Perm 614068 Russia
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Zheng H, Han Y, Sun J, Yan CG. Convenient synthesis of hexasubstituted benzene derivatives via DABCO promoted domino reaction of arylidene malononitrile and dialkyl but-2-ynedioate. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.12.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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Liu D, Sun J, Xie J, Shi H, Yan CG. Construction of Polyfunctionalized 2,4-Dioxa-8-azaspiro[5.5]undec-9-enes and 2,4,8-Triazaspiro[5.5]undec-9-enes via a Domino [2+2+2] Cycloaddition Reaction. J Org Chem 2021; 86:1827-1842. [PMID: 33390007 DOI: 10.1021/acs.joc.0c02645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The three-component reaction of α,β-unsaturated N-arylaldimines, dialkyl but-2-ynedioates, and 2-arylidene Meldrum acids in DCM at room temperature gave mixtures of cis/trans-11-aryl-7-styryl-2,4-dioxa-8-azaspiro[5.5]undec-9-enes in satisfactory yields. The similar three-component reaction with 2-arylidene-N,N'-dimethylbarbituric acids afforded cis-11-phenyl-7-styryl-2,4,8-triazaspiro[5.5]undec-9-enes as major products. On the other hand, the three-component reaction of N-arylaldimines, dialkyl but-2-ynedioates, and 2-arylidene Meldrum acids or 2-arylidene-N,N'-dimethylbarbituric acids afforded cis/trans-isomeric spirocompounds in satisfactory yields with high diastereoselectivity. This domino [2+2+2] cycloaddition reaction proceeded with sequential nucleophilic addition of N-arylaldimine to an electron-deficient alkyne, Michael addition, and annulation process. The stereochemistry of all cis/trans isomeric spirocompounds was clearly elucidated by the determination of 33 single-crystal structures. The diastereoselectivity of the three-component reaction was correlated by DFT calculations.
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Affiliation(s)
- Dan Liu
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Jing Sun
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Ju Xie
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Huizhong Shi
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225002, China
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Trofimov BA, Belyaeva KV. Zwitterionic adducts of N-heterocycles to electrophilic acetylenes as a master key to diversity and complexity of fundamental nitrogen heterocycles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Belyaeva KV, Nikitina LP, Mal’kina AG, Afonin AV, Trofimov BA. Cyanoacetylene-driven base catalyzed synthesis of dihydropyrimidophenanthridinones from phenanthridine and water. MENDELEEV COMMUNICATIONS 2020. [DOI: 10.1016/j.mencom.2020.01.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zhang Y, Han Y, Sun J, Yan C. Selective Construction of Spiro[indene‐2,4′‐pyrido[1,2‐a]quinolines] and Dihydroindeno[1,2‐b]pyrene via Domino Reactions of Huisgen's 1,4‐Dipoles. ChemistrySelect 2018. [DOI: 10.1002/slct.201802394] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yuan‐Yuan Zhang
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| | - Ying Han
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| | - Jing Sun
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
| | - Chao‐Guo Yan
- School of Chemistry & Chemical EngineeringYangzhou University Yangzhou 225002 China
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Mohammadi M, Khandan-Barani K, Hassanabadi A. Synthesis of Fused [1,3]Oxazines from Ethyl Trifluoroacetate, Activated Acetylenes and N-Heterocycles. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15027989009008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The intermediates from the reaction between phenanthridine or isoquinoline with dialkyl acetylenedicarboxylates have been trapped with ethyl trifluoroacetate to produce highly functionalised fused [1,3]oxazines in good yield.
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Affiliation(s)
- Marziyeh Mohammadi
- Department of Chemistry, Islamic Azad University, Zahedan Branch, PO Box 98135-978, Zahedan, Iran
| | - Khatereh Khandan-Barani
- Department of Chemistry, Islamic Azad University, Zahedan Branch, PO Box 98135-978, Zahedan, Iran
| | - Alireza Hassanabadi
- Department of Chemistry, Islamic Azad University, Zahedan Branch, PO Box 98135-978, Zahedan, Iran
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Zhang YY, Han Y, Sun J, Yan CG. Construction of Spiropyrido[2, 1-a]isoquinoline via Tandem Reactions of Huisgen's 1,4-Dipoles with Various Alkene Dipolarophiles. ChemistrySelect 2017. [DOI: 10.1002/slct.201701348] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yuan-Yuan Zhang
- College of Chemistry & Chemical Engineering; Yangzhou University; Yangzhou 225002
| | - Ying Han
- College of Chemistry & Chemical Engineering; Yangzhou University; Yangzhou 225002
| | - Jing Sun
- College of Chemistry & Chemical Engineering; Yangzhou University; Yangzhou 225002
| | - Chao-Guo Yan
- College of Chemistry & Chemical Engineering; Yangzhou University; Yangzhou 225002
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Yang WJ, Zhang J, Sun J, Xie YJ, Yan CG. [2+2+2] cycloaddition reactions of α,β -unsaturated N -arylaldimines, acetylenedicarboxylates and 2-arylidene-1,3-indanediones. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.019] [Citation(s) in RCA: 4] [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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13
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Ke XN, Schienebeck CM, Zhou CC, Xu X, Tang W. Mechanism and Reactivity of Rh-Catalyzed Intermolecular [5+1] Cycloaddition of 3-Acyloxy-1,4-Enyne (ACE) and CO: A Computational Study. CHINESE CHEM LETT 2016; 26:730-734. [PMID: 27152064 DOI: 10.1016/j.cclet.2015.03.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The first theoretical study on the mechanism of [RhCl(CO)2]2-catalyzed [5 + 1] cycloadditions of 3-acyloxy-1,4-enyne (ACE) and CO has been performed using density functional theory (DFT) calculations. The effect of ester on reactivity of this reaction has been investigated. The computational results have revealed that the preferred catalytic cycle involves the sequential steps of 1,2-acyloxy migration, CO insertion, reductive elimination to form ketene intermediate, 6π-electroncyclization, and aromatization to afford the resorcinol product. The 1,2-acyloxy migration is found to be the rate-determining step of the catalytic cycle. The electron-rich p-dimethylaminobenzoate substrate promotes 1,2-acyloxy migration and significantly increases the reactivity by stabilizing the positive charge building up in the oxocyclic transition state.
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Affiliation(s)
- Xiao-Na Ke
- Department of Chemistry, State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Casi M Schienebeck
- School of Pharmacy and Department of Chemistry, University of Wisconsin, Madison, WI 53705-2222
| | - Chen-Chen Zhou
- Department of Chemistry, State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Xiufang Xu
- Department of Chemistry, State Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Weiping Tang
- School of Pharmacy and Department of Chemistry, University of Wisconsin, Madison, WI 53705-2222
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Saeed A, Qamar R. Recent trends in the synthesis of 1,3-oxazines (microreview). Chem Heterocycl Compd (N Y) 2016. [DOI: 10.1007/s10593-016-1839-1] [Citation(s) in RCA: 5] [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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