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Deshwal S, Gopalakrishnan DK, Purohit A, Karmakar T, Vaitla J. Diastereoselective cyclopropanation of α,β-unsaturated carbonyl compounds with vinyl sulfoxonium ylides. Org Biomol Chem 2024. [PMID: 39045784 DOI: 10.1039/d4ob00677a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Herein, we report a three-component stereoselective cyclopropanation of vinyl sulfoxonium ylides with indane 1,3-dione and aldehydes under mild reaction conditions. In contrast to previous reports, the present work shows that electrophilic addition selectively takes place at the α-position of the vinyl sulfoxonium ylide. The interesting feature of this approach is that the multicomponent reaction selectively proceeds because of the difference in nucleophilic reactivity of vinyl sulfoxonium ylides and indane 1,3-dione with electrophilic partners, such as aldehydes and in situ generated arylidenes. Additionally, density functional theory (DFT) studies were conducted to investigate the difference in the reactivity of these reactants, as well as to unveil the mechanism of this three-component reaction. Furthermore, non-covalent interactions of selectivity-determining transition states explain the origin of the diastereoselectivity of cyclopropanation.
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Affiliation(s)
- Shalu Deshwal
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
| | | | - Alok Purohit
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
| | - Tarak Karmakar
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
| | - Janakiram Vaitla
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi, 110016, India.
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Chen S, Liang P, Cai Y, Zhou L, Wang S. Substrate-directed divergent annulations of sulfur ylides: synthesis of functionalized bispirocyclopentane and bispirocyclopropane derivatives. Org Biomol Chem 2024; 22:2197-2202. [PMID: 38411569 DOI: 10.1039/d4ob00146j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Herein, an efficient, substrate-directed divergent [2 + 3]/[2 + 1] annulation of tetra-substituted oxa-dienes and allylic sulfur ylides has been successfully developed. Under precise annulation regulation, a series of functionalized bispirocyclopentane and bispirocyclopropane derivatives were synthesized in a highly stereoselective and economical manner (up to 95% yield, >20 : 1 dr or >20 : 1 E/Z). This protocol offers the advantages of mild conditions, high chemo-, regio- and diastereoselectivity and broad substrate compatibility. In addition, the synthetic practicality of this protocol was evaluated through a scale-up preparation and a series of three-component reactions utilizing in situ generated sulfur ylides.
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Affiliation(s)
- Siyi Chen
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Key Laboratory of Flexible Electronics, Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, China.
| | - Peiyao Liang
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Key Laboratory of Flexible Electronics, Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, China.
| | - Yilin Cai
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China.
| | - Liejin Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, Jinhua 321004, China.
| | - Shoulei Wang
- Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Key Laboratory of Flexible Electronics, Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350117, China.
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Jin HS, Zhu T. Synthesis of Benzofuran-Fused Oxepines through Cs 2CO 3-Promoted [4 + 3] Annulation of Aurones with Crotonate-Derived Sulfonium Salts. J Org Chem 2024; 89:3271-3278. [PMID: 38332626 DOI: 10.1021/acs.joc.3c02715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Benzofuran-fused derivatives display important and reliable therapeutic properties. Herein, we describe the synthesis of benzofuran-fused oxepines using aurones and crotonate-derived sulfonium salts via a [4 + 3] annulation reaction in the presence of Cs2CO3. This reaction proceeds under mild and operationally simple conditions. The synthetic utility of this approach was highlighted by several transformations, including the efficient synthesis of a novel tetracyclic fused benzofuran derivative.
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Affiliation(s)
- Hai-Shan Jin
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
| | - Tong Zhu
- School of Chemistry and Materials Science, Jiangsu Normal University, Xuzhou 221116, Jiangsu, China
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Zheng J, Gu H, Chen Q, Yang W. Access to thiazoline and spiro[indoline-3,3'-thiophene] scaffolds via a formal [3 + 2] annulation reaction of crotonate-derived sulfur ylides and β-ketothioamides. Org Biomol Chem 2023; 21:2069-2080. [PMID: 36807484 DOI: 10.1039/d3ob00087g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A formal [3 + 2] annulation reaction of crotonate-derived sulfur ylides and β-ketothioamides (KTAs) was successfully developed to produce good-to-excellent yields of thiazoline and spiro[indoline-3,3'-thiophene] scaffolds. This transformation is a powerful tool for the synthesis of thiazoline and spiro[indoline-3,3'-thiophene] scaffolds due to its mild reaction conditions, easily accessible starting materials, and broad substrate scope. A large-scale reaction was carried out to ensure the practical applicability of this methodology. Finally, the plausible mechanistic pathway of the developed methodology was investigated.
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Affiliation(s)
- Jing Zheng
- School of Chemistry and Chemical Engineering, Nanchang University, 999 XueFu Road, Nanchang, 330031, China.
| | - Hong Gu
- School of Chemistry and Chemical Engineering, Nanchang University, 999 XueFu Road, Nanchang, 330031, China.
| | - Qinfang Chen
- School of Chemistry and Chemical Engineering, Nanchang University, 999 XueFu Road, Nanchang, 330031, China.
| | - Weiran Yang
- School of Chemistry and Chemical Engineering, Nanchang University, 999 XueFu Road, Nanchang, 330031, China.
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Yu J, Wang X, Xu M, Zhang B, Xiong Z, Mao H, Lv X, Zhou L. Synthesis of α-pyrones via gold-catalyzed cycloisomerization/[2 + 1] cycloaddition/rearrangement of enyne-amides and sulfur ylides. Org Chem Front 2023. [DOI: 10.1039/d2qo01388f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A novel gold-catalyzed cycloisomerization/[2 + 1]cycloaddition/rearrangement of enyne-amides and sulfur ylides is reported. This strategy enables rapid and efficient construction of a series of α-pyrone derivatives.
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Affiliation(s)
- Jinhang Yu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Xinyuan Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Mengjiao Xu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Bei Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Zuping Xiong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Hui Mao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Xin Lv
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
| | - Liejin Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Department of Chemistry, Zhejiang Normal University, 688 Yingbin Road, Jinhua 321004, P. R. China
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Das S. Recent applications of 1,3-indanedione in organic transformations for the construction of fused- and spiro scaffolds. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Nallapati S, Tseng MF, Chen PL, Chuang SC. Phosphine-Mediated [4 + 3] Annulation of Diynoates and 2-Arylidene Indane-1,3-diones: Access of Indeno[1,2- b]oxepin-4-ylidenes and Beyond. Org Lett 2022; 24:2993-2997. [PMID: 35442699 DOI: 10.1021/acs.orglett.2c00893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel unprecedented triphenylphosphine-mediated [4 + 3] annulation reaction of 2-benzylidene indane-1,3-diones and -diynoates through initial phosphine α-addition was discovered and found to result in biologically interesting indeno[1,2-b]oxepin-4-ylidenes in up to 75% yield. The seven-membered separable Z and E isomeric oxepins were confirmed using single-crystal X-ray diffraction.
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Affiliation(s)
- Sureshbabu Nallapati
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan, R.O.C.,Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan, R.O.C
| | - Min-Feng Tseng
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan, R.O.C.,Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan, R.O.C
| | - Pei-Ling Chen
- Department of Chemistry, National Tsing Hua University, Hsinchu 30050 Taiwan, R.O.C
| | - Shih-Ching Chuang
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan, R.O.C.,Department of Applied Chemistry, National Chiao Tung University, Hsinchu 30010, Taiwan, R.O.C
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Li JL, Li QZ, Zou WL, Jia ZQ. Recent Advances on Annulation Reactions with Allyl and Propargyl Sulfonium Salts. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1578-2911] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
AbstractAllyl and propargyl sulfonium salts are readily available reagents that have recently emerged as versatile building blocks for the assembly of cyclic skeletons. As an alternative to classical sulfonium salts, allyl and propargyl sulfonium salts can be converted into the corresponding vinyl sulfur ylide or allenic sulfonium salt intermediates that contain diverse nucleophilic or electrophilic reactive positions, thereby enabling a great variety of annulation reactions. In this short review, we provide a comprehensive overview of the recent developments in this growing field by summarizing annulation reactions involving allyl and propargyl sulfonium salts. 1 Introduction2 Annulations with Allyl Sulfonium Salts3 Annulations with Propargyl Sulfonium Salts4 Conclusion
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Meng Z, Wang Q, Lu D, Yue T, Ai P, Liu H, Yang W, Zheng J. Domino Annulation Reaction of Sulfur Ylides and Morita–Baylis–Hillman Carbonates of Isatins: Synthesis of Oxospiro[bicyclo[3.1.0]hexane-6,3′-indolin] Scaffolds. J Org Chem 2020; 85:15026-15037. [DOI: 10.1021/acs.joc.0c01919] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Zhongrong Meng
- College of Chemistry, Nanchang University, 999 XuFu Road, Nangchang 330031, China
| | - Qiongqiong Wang
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XuFu Road, Nangchang 330031, China
| | - Doudou Lu
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XuFu Road, Nangchang 330031, China
| | - Tingting Yue
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XuFu Road, Nangchang 330031, China
| | - Pu Ai
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XuFu Road, Nangchang 330031, China
| | - Hua Liu
- School of Pharmacy, Jiangxi University of Traditional Chinese Medicine, 1688 Meiling Road, Wanli District, Nanchang 330004, China
| | - Weiran Yang
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XuFu Road, Nangchang 330031, China
| | - Jing Zheng
- School of Resources Environmental and Chemical Engineering, Nanchang University, 999 XuFu Road, Nangchang 330031, China
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Das S. Annulations involving 2-arylidene-1,3-indanediones: stereoselective synthesis of spiro- and fused scaffolds. NEW J CHEM 2020. [DOI: 10.1039/d0nj03968c] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Stereoselective annulations of 2-arylidene-1,3-indanediones towards spiro-carbocycles as well as spiro/fused heterocycles based on various cycloadditions and tandem annulations are described.
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Affiliation(s)
- Suven Das
- Department of Chemistry
- Rishi Bankim Chandra College for Women
- India
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