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Shally, Althagafi I, Shaw R, Elagamy A, Kumar A, Pratap R. A [5 + 1] annulation strategy for the synthesis of multifunctional biaryls and p-teraryls from 1,6-Michael acceptor ketene dithioacetals. Org Biomol Chem 2020; 18:6407-6417. [DOI: 10.1039/d0ob00998a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A [5 + 1] annulation approach was used to access multifunctional biaryls and p-teraryls from ketene dithioacetals.
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Affiliation(s)
- Shally
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | | | - Ranjay Shaw
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Amr Elagamy
- Department of Chemistry
- University of Delhi
- Delhi-110007
- India
| | - Abhinav Kumar
- Department of Chemistry
- University of Lucknow
- Lucknow
- India
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3
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Yu Y, Wang XY, Peng JY, Liu T, Zhao YL. Copper-catalyzed cascade cyclization reaction of 3-aminocyclobutenones with electron-deficient internal alkynes: synthesis of fully substituted indoles. Chem Commun (Camb) 2020; 56:9815-9818. [DOI: 10.1039/d0cc00512f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel copper-catalyzed cascade cyclization reaction of 3-aminocyclobutenones with electron-deficient internal alkynes has been developed. This reaction provides a new method for the synthesis of fully substituted indoles by formation of four new bonds and two rings in a single step.
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Affiliation(s)
- Yang Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Xin-Yu Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Ju-Yin Peng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Tao Liu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
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Wang M, Shi L, Li Y, Liu Q, Pan L. Synthesis of γ-Pyrones from Formal [4 + 2] Cyclization of Ketene Dithioacetals with Acyl Chlorides. J Org Chem 2019; 84:9603-9610. [DOI: 10.1021/acs.joc.9b01254] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingshan Wang
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Lou Shi
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Yifei Li
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Qun Liu
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
| | - Ling Pan
- Jilin Province Key Laboratory of Organic Functional Molecular, Design & Synthesis, Department of Chemistry, Northeast Normal University, Changchun 130024, China
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Zhou Y, Lou Y, Wang Y, Song Q. Oxidant-controlled divergent transformations of 3-aminoindazoles for the synthesis of pyrimido[1,2-b]-indazoles and aromatic nitrile-derived dithioacetals. Org Chem Front 2019. [DOI: 10.1039/c9qo00847k] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
An oxidant-controlled divergent reactivity of 3-aminoindazoles is presented, which enables the [3 + 3] annulation and C–H arylation of ketene dithioacetals in disparate pathways to assemble pyrimido[1,2-b]-indazoles and aromatic nitrile-derived dithioacetals.
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Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- PR China
| | - Yixian Lou
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
- Zhejiang University of Technology
- Hangzhou
- 310000 PR China
| | - Ya Wang
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- PR China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering at Huaqiao University
- Xiamen
- PR China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
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Deng L, Liu Y. Metal-Free Vinyl C-H Sulfenylation/Alkyl Thiolation of Ketene Dithioacetals for the Synthesis of Polythiolated Alkenes. ACS OMEGA 2018; 3:11890-11895. [PMID: 31459275 PMCID: PMC6645039 DOI: 10.1021/acsomega.8b01946] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 09/12/2018] [Indexed: 06/10/2023]
Abstract
The sulfenylation of the vinyl C-H bond in ketene dithioacetals leading to the synthesis of polythiolated alkenes is achieved via the promotion of molecular iodine. In addition, alkyl thiols also exhibit tolerance to the C-H bond elaboration reaction for the synthesis of corresponding alkylthiolated ketene dithioacetals.
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Bai LG, Chen MT, Xiao DR, Zhao LB, Luo QL. Access to Multisubstituted Furan-3-carbothioates via Cascade Annulation of α-Oxo Ketene Dithioacetals with Isoindoline-1,3-dione-Derived Propargyl Alcohols. J Org Chem 2018; 83:7648-7658. [DOI: 10.1021/acs.joc.8b00401] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Yu Y, Zhang Y, Xiao LY, Peng QQ, Zhao YL. Thermally induced formal [4+2] cycloaddition of 3-aminocyclobutenones with electron-deficient alkynes: facile and efficient synthesis of 4-pyridones. Chem Commun (Camb) 2018; 54:8229-8232. [DOI: 10.1039/c8cc03974g] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A thermally induced novel formal [4+2] cycloaddition of cyclobutenones with electron-deficient alkynes under metal-free conditions has been developed. The reaction provides a straightforward and efficient method for the synthesis of 4-pyridone derivatives in a single step.
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Affiliation(s)
- Yang Yu
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yan Zhang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Li-Yun Xiao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Qin-Qin Peng
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
| | - Yu-Long Zhao
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis
- Faculty of Chemistry
- Northeast Normal University
- Changchun 130024
- China
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Gao S, Hu X. Nickel-catalyzed ring-opening of α-hydroxycyclobutenones with a remarkable ligand effect. Chem Commun (Camb) 2017; 53:10540-10543. [DOI: 10.1039/c7cc03340k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A Ni-catalyzed ring-opening of α-hydroxycyclobutenones is reported herein.
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Affiliation(s)
- Songsong Gao
- School of Chemistry & Material Science
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China
- Northwest University
- Xi’an 710127
- China
| | - Xiangdong Hu
- School of Chemistry & Material Science
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education of China
- Northwest University
- Xi’an 710127
- China
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Chen PH, Dong G. Cyclobutenones and Benzocyclobutenones: Versatile Synthons in Organic Synthesis. Chemistry 2016; 22:18290-18315. [PMID: 27620805 PMCID: PMC5503213 DOI: 10.1002/chem.201603382] [Citation(s) in RCA: 103] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2016] [Indexed: 01/20/2023]
Abstract
Cyclobutenones, four-membered ketones bearing an unsaturated carbon-carbon double bond, and their structural sibling benzocyclobutenones, possess unique reactivity. Owing to their inherent high ring strain, such structures readily undergo ring opening under a variety of conditions, including thermolysis, photolysis, and transition metal catalysis, to afford reactive intermediates that can be trapped with nucleophiles, dienophiles, and unsaturated bonds. Their electron-deficient enone moieties are good electrophiles for facile nucleophilic addition. Such properties render cyclobutenones versatile synthons, serving as excellent coupling partners in a vast array of synthetically valuable transformations.
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Affiliation(s)
- Peng-Hao Chen
- Department of Chemistry, University of Texas at Austin, 100 East 24th street, Austin, TX, 78712, USA
| | - Guangbin Dong
- Department of Chemistry, University of Texas at Austin, 100 East 24th street, Austin, TX, 78712, USA
- Department of Chemistry, University of Chicago, Chicago, Illinois, 60637, USA
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Synthesis of multisubstituted cyclobutenones via copper-catalyzed intramolecular C-vinylation of ketones. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Meng J, Li YJ, Zhao YL, Bu XB, Liu Q. A base-catalyzed cycloisomerization of 5-cyano-pentyne derivatives: an efficient synthesis of 3-cyano-4,5-dihydro-1H-pyrroles. Chem Commun (Camb) 2014; 50:12490-2. [DOI: 10.1039/c4cc04409f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A base-catalyzed cycloisomerization of 5-cyano-pentyne bearing a terminal alkyne group has been developed under metal-free conditions. This reaction provides an efficient access to 3-cyano-4,5-dihydro-1H-pyrroles with 1,3-cyano migration as the key transformation.
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Affiliation(s)
- Jia Meng
- Department of Chemistry
- Northeast Normal University
- Changchun, China
- Department of Chemistry
- Mudanjiang Normal University
| | - Yi-Jin Li
- Department of Chemistry
- Northeast Normal University
- Changchun, China
| | - Yu-Long Zhao
- Department of Chemistry
- Northeast Normal University
- Changchun, China
| | - Xiu-Bin Bu
- Department of Chemistry
- Northeast Normal University
- Changchun, China
| | - Qun Liu
- Department of Chemistry
- Northeast Normal University
- Changchun, China
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Pan F, Shi ZJ. Recent Advances in Transition-Metal-Catalyzed C–S Activation: From Thioester to (Hetero)aryl Thioether. ACS Catal 2013. [DOI: 10.1021/cs400985m] [Citation(s) in RCA: 201] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fei Pan
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key
Laboratory of Bioorganic Chemistry and Molecular Engineering of Education
College of Chemistry Center, Peking University, Beijing 100871, China
| | - Zhang-Jie Shi
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key
Laboratory of Bioorganic Chemistry and Molecular Engineering of Education
College of Chemistry Center, Peking University, Beijing 100871, China
- State Key Laboratory of Organometallic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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Abstract
Ketene dithioacetals are versatile intermediates in organic synthesis. Extensive research, since the last decade, has given rise to new prospects in their chemistry. The objective of this review is twofold: first, to highlight the new prospects in the chemistry of functionalized ketene dithioacetals, and second, to provide an intrinsic link between ketene dithioacetal groups and a variety of other functional groups, which has brought out many new facts that will assist in future designs.
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Affiliation(s)
- Ling Pan
- Department of Chemistry, Northeast Normal University, 5268 Renmin Street, Changchun, 130024, China
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[3+2] Cycloadditions of α-acyl ketene dithioacetals with propargylamines: pyrrole synthesis in water. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.01.020] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Wang L, He W, Yu Z. Transition-metal mediated carbon–sulfur bond activation and transformations. Chem Soc Rev 2013; 42:599-621. [DOI: 10.1039/c2cs35323g] [Citation(s) in RCA: 445] [Impact Index Per Article: 40.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Zhao YL, Di CH, Liu SD, Meng J, Liu Q. [3+2] Cycloaddition of Propargylamines and α-Acylketene Dithioacetals: A Synthetic Strategy for Highly Substituted Pyrroles. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200375] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Han XD, Zhao YL, Meng J, Ren CQ, Liu Q. Synthesis of Acridines and Persubstituted Phenols from Cyclobutenones and Active Methylene Ketones. J Org Chem 2012; 77:5173-8. [DOI: 10.1021/jo300615t] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Xiao-Dan Han
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Yu-Long Zhao
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Jia Meng
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Chuan-Qing Ren
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
| | - Qun Liu
- Department
of Chemistry, Northeast Normal University, Changchun, 130024, P. R. China
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Chai G, Wu S, Fu C, Ma S. A straightforward synthesis of cyclobutenones via a tandem Michael addition/cyclization reaction of 2,3-allenoates with organozincs. J Am Chem Soc 2011; 133:3740-3. [PMID: 21351788 DOI: 10.1021/ja1108694] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient method for synthesis of polysubstituted cyclobutenones, which are not readily available from traditional methods due to the intrinsic ring strain, is described. The reaction of 2,3-allenoates and organozinc reagents proceeds via a tandem Michael addition/cyclic 1,2-addition/elimination mechanism with the functional groups from the organozinc reagents being introduced to the 3-position of the cyclobutenone products regiospecifically in moderate to excellent yields. Application to the synthesis of stereodefined β,γ-unsaturated enones is demonstrated.
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Affiliation(s)
- Guobi Chai
- Laboratory of Molecular Recognition and Synthesis, Department of Chemistry, Zhejiang University, Hangzhou 310027, Zhejiang, PR China
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Wang H, Zhao YL, Ren CQ, Diallo A, Liu Q. Tandem [5+1] annulation–isocyanide cyclization: efficient synthesis of hydroindolones. Chem Commun (Camb) 2011; 47:12316-8. [DOI: 10.1039/c1cc14916d] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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