1
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Yisimayili N, Li ZF, Liu T, Lu CD. Stereoselective Electrophilic Sulfenylation of β,β-Disubstituted Enesulfinamides: Asymmetric Construction of Less Accessible Acyclic α,α-Disubstituted α-Sulfenylated Ketimines. Org Lett 2024; 26:5978-5983. [PMID: 38967298 DOI: 10.1021/acs.orglett.4c02030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2024]
Abstract
Current methods for the asymmetric α-sulfenylation of carbonyls cannot be applied to acyclic carbonyls that have two similar substituents at the α-position. This research demonstrated that the electrophilic sulfenylation of geometry-defined acyclic β,β-disubstituted enesulfinamides using S-aryl or S-alkyl benzenethiosulfonates can be highly stereoselective. This process results in enantioenriched α,α-disubstituted α-sulfenylated ketone surrogates with sulfur-containing acyclic tetrasubstituted carbon stereocenters bearing two electronically and sterically similar substituents (e.g., methyl and ethyl). Furthermore, by employing the corresponding stereoisomers of enensulfinamides, any of the four stereoisomers of α-sulfenylated ketimines can be selectively accessed.
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Affiliation(s)
| | - Zheng-Fei Li
- School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Tao Liu
- School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
| | - Chong-Dao Lu
- School of Chemical Science and Technology, Yunnan University, Kunming, Yunnan 650091, China
- School of Health, Jiangxi Normal University, Nanchang, Jiangxi 330022, China
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2
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Wang J, Lu XX, Yang RP, Zhang BB, Xiang ZH, Li JC, Liu L, Chao S, Shang X. N-Trifluoromethylselenophthalimide, an Electrophilic Trifluoromethylselenolation Reagent and Its Application for the Synthesis of 4-Trifluoromethylselenolated Isoxazoles. Org Lett 2023; 25:8489-8494. [PMID: 37966853 DOI: 10.1021/acs.orglett.3c03446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
A new electrophilic trifluoromethylselenolation reagent, N-trifluoromethylselenophthalimide (Phth-SeCF3), was developed. A strategy for the synthesis of 4-trifluoromethylselenolated isoxazoles through electrophilic trifluoromethylselenolation cyclization has been established by using Phth-SeCF3 as an electrophilic reagent. Moreover, this protocol has the features of broad substrate scope, good functional group tolerance, and high yields.
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Affiliation(s)
- Jia Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Xiao-Xiao Lu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Run-Ping Yang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Bing-Bing Zhang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Zhi-Hao Xiang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Jia-Cheng Li
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Lixia Liu
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Shujun Chao
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
| | - Xuefang Shang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, Henan 453003, China
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3
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Doraghi F, Aledavoud SP, Ghanbarlou M, Larijani B, Mahdavi M. N-Sulfenylsuccinimide/phthalimide: an alternative sulfenylating reagent in organic transformations. Beilstein J Org Chem 2023; 19:1471-1502. [PMID: 37799175 PMCID: PMC10548256 DOI: 10.3762/bjoc.19.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 09/12/2023] [Indexed: 10/07/2023] Open
Abstract
In the field of organosulfur chemistry, sulfenylating agents are an important key in C-S bond formation strategies. Among various organosulfur precursors, N-sulfenylsuccinimide/phthalimide derivatives have shown highly electrophilic reactivity for the asymmetric synthesis of many organic compounds. Hence, in this review article, we focus on the application of these alternative sulfenylating reagents in organic transformations.
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Affiliation(s)
- Fatemeh Doraghi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Seyedeh Pegah Aledavoud
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mehdi Ghanbarlou
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
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4
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Tan Q, Chen Q, Zhu Z, Liu X. Asymmetric organocatalytic sulfenylation for the construction of a diheteroatom-bearing tetrasubstituted carbon centre. Chem Commun (Camb) 2022; 58:9686-9689. [PMID: 35959638 DOI: 10.1039/d2cc03443c] [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
Catalytic enantioselective sulfenylation to construct diheteroatom-bearing carbon centres was achieved by employing chiral guanidine organocatalysts. This protocol provided a facile route towards the synthesis of α-fluoro-α-sulfenyl-β-ketoamides, azlactone adducts and α-sulfur-substituted amino acid derivatives in high yields with good to excellent enantioselectivities. A possible working mode was proposed to elucidate the chiral control of the process.
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Affiliation(s)
- Qingfa Tan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Qianping Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Zitong Zhu
- 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.
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5
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Vaskevych AI, Savinchuk NO, Vaskevych RI, Rusanov EB, Vovk MV. Chalcogenation/pyrrolo(pyrido)annulation of 2-(3-butenyl)quinazolin-4(3H)-ones by arylsulfenyl(selenyl) chlorides. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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6
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Wei YF, Gao WC, Chang HH, Jiang X. Recent advances in thiolation via sulfur electrophiles. Org Chem Front 2022. [DOI: 10.1039/d2qo01447e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This review systematically summarizes the recent developments for constructing sulfur compounds from sulfur electrophiles, and the mechanism mainly involved thirranium ions, sulfur ylides, C–S cross coupling and electrophilic substitution.
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Affiliation(s)
- Ya-Feng Wei
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Wen-Chao Gao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
| | - Hong-Hong Chang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xuefeng Jiang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, China
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7
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Zhu D, Chen ZM. Application of Chiral Lewis Base/Brønsted Acid Synergistic Catalysis Strategy in Enantioselective Synthesis of Organic Sulfides. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202208032] [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]
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8
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Qin X, Jiang G, Gao J, Zhang H, Sun D, Zhang G, Zheng L, Zhang S. Imidodiphosphoric Acids Catalysed Asymmetric Functionaliza‐tion with Thiols: Access to Oxindole Derived ɑ‐Chiral Thioethers. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100978] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Xiangshuo Qin
- College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Guofeng Jiang
- College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Jigang Gao
- College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Heng Zhang
- College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Dongyang Sun
- College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Guangliang Zhang
- College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Liangyu Zheng
- College of Life Sciences Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education Jilin University 2699 Qianjin Street Changchun 130012 Peoples Republic of China
| | - Suoqin Zhang
- College of Chemistry Jilin University 2699 Qianjin Street Changchun 130012 People's Republic of China
- College of Life Sciences Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education Jilin University 2699 Qianjin Street Changchun 130012 Peoples Republic of China
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9
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Zhang Q, Li Y, Zhang L, Luo S. Catalytic Asymmetric Disulfuration by a Chiral Bulky Three‐Component Lewis Acid‐Base. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101569] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Qi Zhang
- Key Laboratory of Molecular Recognition and Function Institute of Chemistry Chinese Academy of Sciences Beijing 100190 China
- Department of Chemistry University of Chinese Academy of Sciences Beijing 100490 China
| | - Yao Li
- Center of Basic Molecular Science Department of Chemistry Tsinghua University Beijing China
| | - Long Zhang
- Center of Basic Molecular Science Department of Chemistry Tsinghua University Beijing China
| | - Sanzhong Luo
- Center of Basic Molecular Science Department of Chemistry Tsinghua University Beijing China
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10
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Zhang Q, Li Y, Zhang L, Luo S. Catalytic Asymmetric Disulfuration by a Chiral Bulky Three-Component Lewis Acid-Base. Angew Chem Int Ed Engl 2021; 60:10971-10976. [PMID: 33660896 DOI: 10.1002/anie.202101569] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/02/2021] [Indexed: 01/07/2023]
Abstract
A three-component Lewis acid-base (Lewis trio) involving a bulky chiral primary amine, B(C6 F5 )3 and a bulky tertiary amine has been developed as an effective enamine catalyst for enantioselective disulfuration reactions. The bulky tertiary amine was found to activate a bulky primary-tertiary diamine-borane Lewis pair for enamine catalysis via frustrated interaction. The resulted chiral bulky Lewis trio (BLT) allows for the construction of chiral disulfides via direct disulfuration with β-ketocarbonyls or α-branched aldehydes in a practical and highly stereocontrolled manner.
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Affiliation(s)
- Qi Zhang
- Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,Department of Chemistry, University of Chinese Academy of Sciences, Beijing, 100490, China
| | - Yao Li
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, China
| | - Long Zhang
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, China
| | - Sanzhong Luo
- Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, China
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11
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Margalef J, Samec JSM. Assessing Methodologies to Synthesize α-Sulfenylated Carbonyl Compounds by Green Chemistry Metrics. CHEMSUSCHEM 2021; 14:808-823. [PMID: 33180999 PMCID: PMC7894555 DOI: 10.1002/cssc.202002409] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/08/2020] [Indexed: 06/11/2023]
Abstract
α-Sulfenylated carbonyl compounds are important both as active pharmaceutical ingredients and as intermediates in organic synthesis. Owing to their relevance in synthetic organic chemistry, this Minireview focuses on assessing the most relevant synthetic procedures based on green chemistry metrics. The Minireview starts with the traditional routes and then focuses on more recently developed methodologies. These routes include sulfenylating reagents using organocatalysis, cross-dehydrogenative couplings using in situ halogenations to prevent reactive intermediates in high concentrations, oxidative couplings using terminal oxidants such as DDQ or TEMPO, and redox-neutral couplings using transition metal catalysis. These methodologies have been evaluated on the basis of atom economy, E factor, and the safety and toxicity of the transformations and the solvents used. Besides using green metrics to evaluate these novel methodologies, the synthetic utility is also assessed with regard to the availability of starting materials and the generality of the reactions. This Minireview aims to inspire researchers to apply green assessments to other methodologies and also for them to take measures to increase the greenness of their developed transformations.
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Affiliation(s)
- Jèssica Margalef
- Departament de Química Física i InorgànicaUniversitat Rovira i VirgiliC/ Marcel lí Domingo, 143007TarragonaSpain
| | - Joseph S. M. Samec
- Department of Organic ChemistryStockholm UniversitySvante Arrhenius väg 16 C106 91StockholmSweden
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12
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Kadam SN, Ambhore AN, Kamble RD, Wakhradkar MG, Gavhane PD, Gaikwad MV, Gunturu KC, Dawane BS. Metal-free efficient thiolation of C(sp 2) functionalization via in situ-generated NHTS for the synthesis of novel sulfenylated 2-aminothiazole and imidazothiazole. NEW J CHEM 2021. [DOI: 10.1039/d0nj05904h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A direct metal-free approach for the synthesis of novel sulfenylated 2-aminothiazole and imidazothiazole derivatives at room temperature is reported via an in situ-generated electrophilic thiolating agent.
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Affiliation(s)
| | - Ajay N. Ambhore
- Padmabhushan Dr Vasantraodada Patil Mahavidyalay
- Tasgaon Sangli
- India
| | | | - Mahesh G. Wakhradkar
- School of Chemical sciences
- Swami Ramanand Teerth Marathwada University
- Nanded
- India
| | - Priya D. Gavhane
- School of Chemical sciences
- Swami Ramanand Teerth Marathwada University
- Nanded
- India
| | - Milind V. Gaikwad
- School of Chemical sciences
- Swami Ramanand Teerth Marathwada University
- Nanded
- India
| | | | - Bhaskar S. Dawane
- School of Chemical sciences
- Swami Ramanand Teerth Marathwada University
- Nanded
- India
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13
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Chen H, Jiang W, Zeng Q. Recent Advances in Synthesis of Chiral Thioethers. CHEM REC 2020; 20:1269-1296. [PMID: 32930488 DOI: 10.1002/tcr.202000084] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 08/20/2020] [Accepted: 08/21/2020] [Indexed: 12/11/2022]
Abstract
Chiral thioethers is an important class of organosulfur molecules with extensive applications, especially in the field of medicine and organic synthesis. This review discusses the recent progress of synthesis of enantioenriched chiral thioethers and hopes to be helpful for related research in the future. It is summarized from organosulfur compounds-participating organic reaction types, including nucleophilic substitution, cross coupling, sulfa-Michael addition, sulfenylation, asymmetric allylic reaction, asymmetric Doyle-Kirmse reaction, Pummerer-type rearrangement, Smiles rearrangement,[2,3] Stevens and Sommelet-Hauser rearrangement.
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Affiliation(s)
- Hongyi Chen
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, 1 Dongsan Road, Erxianqiao, Chengdu, 610059, China
| | - Wenlong Jiang
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, 1 Dongsan Road, Erxianqiao, Chengdu, 610059, China
| | - Qingle Zeng
- State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, College of Materials, Chemistry & Chemical Engineering, Chengdu University of Technology, 1 Dongsan Road, Erxianqiao, Chengdu, 610059, China
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14
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Zhang Y, Wong HN, Wu XY, Han J. Chiral iminophosphorane catalyzed asymmetric sulfenylation of 2-substituted alkylcyanoacetates. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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15
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Wu H, Qiu C, Zhang Z, Zhang B, Zhang S, Xu Y, Zhou H, Su C, Loh KP. Graphene‐Oxide‐Catalyzed Cross‐Dehydrogenative Coupling of Oxindoles with Arenes and Thiophenols. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901224] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Hongru Wu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Chuntian Qiu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Zhaofei Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Bing Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Shaolong Zhang
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
- Department of Chemistry, Department of ChemistryNational University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
| | - Yangsen Xu
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Hongwei Zhou
- College of Biological, Chemical Science and EngineeringJiaxing University 118 Jiahang Road Jiaxing 314001 People's Republic of China
| | - Chenliang Su
- International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, Engineering Technology Research Center for 2D Materials Information Functional Devices and Systems of Guangdong Province, Institute of Microscale OptoeletronicsShenzhen University Shenzhen 518060 People's Republic of China E-mail addresses
| | - Kian Ping Loh
- Department of Chemistry, Department of ChemistryNational University of Singapore 3 Science Drive 3 Singapore 117543 Singapore
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16
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Margalef J, Watile RA, Rukkijakan T, Samec JSM. High-Atom Economic Approach To Prepare Chiral α-Sulfenylated Ketones. J Org Chem 2019; 84:11219-11227. [PMID: 31385499 DOI: 10.1021/acs.joc.9b01424] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Chiral α-sulfenylated ketones are versatile building blocks, although there are still several limitations with their preparation. Here we report a new two-step procedure, consisting of Pd-catalyzed hydrothiolation of propargylic alcohols followed by an enantioselective Rh isomerization of allylic alcohols. The isomerization reaction is the key step for obtaining the ketones in their enantioenriched form. The new methodology has a high atom economy and induces good to high levels of enantioselectivity; no waste is produced. A mechanism involving a Rh-hydride-enone intermediate is proposed for the isomerization reaction.
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Affiliation(s)
- Jèssica Margalef
- Department of Physical and Inorganic Chemistry , Universitat Rovira i Virgili , Tarragona 43007 , Spain
| | - Rahul A Watile
- Department of Organic Chemistry , Stockholm University , Stockholm 106 91 , Sweden
| | - Thanya Rukkijakan
- Department of Organic Chemistry , Stockholm University , Stockholm 106 91 , Sweden
| | - Joseph S M Samec
- Department of Organic Chemistry , Stockholm University , Stockholm 106 91 , Sweden
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17
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Xie Y, Chen Z, Luo H, Shao H, Tu Y, Bao X, Cao R, Zhang S, Tian J. Lewis Base/Brønsted Acid Co‐catalyzed Enantioselective Sulfenylation/Semipinacol Rearrangement of Di‐ and Trisubstituted Allylic Alcohols. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu‐Yang Xie
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Zhi‐Min Chen
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Hui‐Yun Luo
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Hui Shao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Yong‐Qiang Tu
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical EngineeringLanzhou University Lanzhou 730000 P. R. China
| | - Xiaoguang Bao
- College of Chemistry Chemical Engineering and Materials ScienceSoochow University 199 Ren-Ai Road Suzhou Industrial Park Suzhou Jiangsu 215123 P. R. China
| | - Ren‐Fei Cao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Shu‐Yu Zhang
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
| | - Jin‐Miao Tian
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 P. R. China
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18
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Xie YY, Chen ZM, Luo HY, Shao H, Tu YQ, Bao X, Cao RF, Zhang SY, Tian JM. Lewis Base/Brønsted Acid Co-catalyzed Enantioselective Sulfenylation/Semipinacol Rearrangement of Di- and Trisubstituted Allylic Alcohols. Angew Chem Int Ed Engl 2019; 58:12491-12496. [PMID: 31293063 DOI: 10.1002/anie.201907115] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Indexed: 12/29/2022]
Abstract
An enantioselective sulfenylation/semipinacol rearrangement of 1,1-disubstituted and trisubstituted allylic alcohols was accomplished with a chiral Lewis base and a chiral Brønsted acid as cocatalysts, generating various β-arylthio ketones bearing an all-carbon quaternary center in moderate to excellent yields and excellent enantioselectivities. These chiral arylthio ketone products are common intermediates with many applications, for example, in the design of new chiral catalysts/ligands and the total synthesis of natural products. Computational studies (DFT calculations) were carried out to explain the enantioselectivity and the role of the chiral Brønsted acid. Additionally, the synthetic utility of this method was exemplified by an enantioselective total synthesis of (-)-herbertene and a one-pot synthesis of a chiral sulfoxide and sulfone.
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Affiliation(s)
- Yu-Yang Xie
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Zhi-Min Chen
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Hui-Yun Luo
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Hui Shao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Yong-Qiang Tu
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China.,State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Xiaoguang Bao
- College of Chemistry Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
| | - Ren-Fei Cao
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Shu-Yu Zhang
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
| | - Jin-Miao Tian
- School of Chemistry and Chemical Engineering and Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, P. R. China
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19
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Huang L, Han D, Xu D. Iron‐Catalyzed Cross‐Dehydrogenative Coupling of Oxindoles with Thiols/Selenols for Direct C(
sp
3
)−S/Se Bond Formation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900400] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lu‐Shan Huang
- National Engineering Research Center of Pesticide (Tianjin), State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Dong‐Yang Han
- National Engineering Research Center of Pesticide (Tianjin), State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
| | - Da‐Zhen Xu
- National Engineering Research Center of Pesticide (Tianjin), State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry Nankai University Tianjin 300071 People's Republic of China
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20
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Viglianisi C, Vasa K, Tanini D, Capperucci A, Amorati R, Valgimigli L, Baschieri A, Menichetti S. Ditocopheryl Sulfides and Disulfides: Synthesis and Antioxidant Profile. Chemistry 2019; 25:9108-9116. [PMID: 31017702 DOI: 10.1002/chem.201901537] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Indexed: 12/14/2022]
Abstract
Symmetrical ditocopheryl disulfides (Toc)2 S2 and symmetrical and unsymmetrical ditocopheryl sulfides (Toc)2 S were simply prepared under remarkably mild conditions with complete control of the regiochemistry by using δ-, γ-, and β-tocopheryl-N-thiophthalimides (Toc-NSPht) as common starting materials. The roles of sulfur atom(s), H-bond and aryl ring substitution pattern on the antioxidant profile of these new compounds, which were assembled by linking together two tocopheryl units, are also discussed.
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Affiliation(s)
- Caterina Viglianisi
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Kristian Vasa
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Damiano Tanini
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Antonella Capperucci
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
| | - Riccardo Amorati
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Luca Valgimigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Andrea Baschieri
- Department of Chemistry "G. Ciamician", University of Bologna, Via S. Giacomo 11, 40126, Bologna, Italy
| | - Stefano Menichetti
- Department of Chemistry "Ugo Schiff", University of Florence, Via Della Lastruccia 3-13, Sesto Fiorentino, Firenze, Italy
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21
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Zhang L, Wang M, Zhou M, Zhang Z, Muraoka M, Zhang W. Chiral Bicyclic Imidazole‐Catalyzed Direct Enantioselective C‐Acylation for the Synthesis of 2‐Oxindoles Bearing a Quaternary Stereocenter. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900294] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Lu Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of PharmacyShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Mo Wang
- School of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Muxing Zhou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of PharmacyShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Zhenfeng Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of PharmacyShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Masahiro Muraoka
- Department of Applied ChemistryOsaka Institute of Technology Ohmiya 5-16-1, Asahi-ku Osaka 535-8585 Japan
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs School of PharmacyShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
- School of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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22
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Liang Y, Zhao X. Enantioselective Construction of Chiral Sulfides via Catalytic Electrophilic Azidothiolation and Oxythiolation of N-Allyl Sulfonamides. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01900] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yaoyu Liang
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China
| | - Xiaodan Zhao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-Sen University, Guangzhou 510275, People’s Republic of China
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23
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Qiu J, Wu D, Yuan L, Long P, Yin H, Chen FX. Organocatalyzed Asymmetric α-Thiocyanation of Oxindoles: Synthesis of Chiral Tertiary 3-Thiocyanatoxindoles. J Org Chem 2019; 84:7917-7926. [DOI: 10.1021/acs.joc.9b00782] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jiashen Qiu
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Di Wu
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Lexia Yuan
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Pingliang Long
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Hongquan Yin
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
| | - Fu-Xue Chen
- School of Chemistry & Chemical Engineering, Beijing Institute of Technology (Liangxiang Campus), No. 8 Liangxiang East Road, Fangshan District, Beijing 102488, China
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24
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Zhao MX, Liu Q, Jiang RH, Shi M. DABCO/AgOAc cooperatively catalyzed α-sulfenylation of isocyanoacetates with N-(sulfanyl)succinimides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Wang K, Xiang Y, Shi Z, Wang H, Li N, Tang B. Asymmetric kinetic resolution of sulfides for the construction of unsymmetric sulfides and chiral 3,3-disubstituted oxindoles. Org Biomol Chem 2019; 17:6351-6354. [DOI: 10.1039/c9ob01065c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient method for preparing unsymmetric disulfides using para-quinone methides derived from isatins was developed. In addition, chiral 3,3-disubstituted oxindoles were also obtained with high selectivities via asymmetric kinetic resolution.
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Affiliation(s)
- Kaiye Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
| | - Yanan Xiang
- College of Chemistry
- Chemical Engineering and Materials Science
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
| | - Zhujun Shi
- College of Chemistry
- Chemical Engineering and Materials Science
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
| | - Hongyu Wang
- College of Chemistry
- Chemical Engineering and Materials Science
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
| | - Na Li
- College of Chemistry
- Chemical Engineering and Materials Science
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
| | - Bo Tang
- College of Chemistry
- Chemical Engineering and Materials Science
- Key Laboratory of Molecular and Nano Probes
- Ministry of Education Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong
- Institute of Molecular and Nano Science
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26
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Chen ZC, Chen P, Chen Z, Ouyang Q, Liang HP, Du W, Chen YC. Organocatalytic Enantioselective 1,3-Difunctionalizations of Morita–Baylis–Hillman Carbonates. Org Lett 2018; 20:6279-6283. [PMID: 30256122 DOI: 10.1021/acs.orglett.8b02764] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Zhi-Chao Chen
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Peng Chen
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Zhi Chen
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Qin Ouyang
- State Key Laboratory of Trauma, Burn and Combined Injury, and College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
| | - Hua-Ping Liang
- State Key Laboratory of Trauma, Burn and Combined Injury, and College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
| | - Wei Du
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Ying-Chun Chen
- Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
- State Key Laboratory of Trauma, Burn and Combined Injury, and College of Pharmacy, Third Military Medical University, Shapingba, Chongqing 400038, China
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27
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Freckleton M, Baeza A, Benavent L, Chinchilla R. Asymmetric Organocatalytic Electrophilic Heterofunctionalization of Oxindoles. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800146] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Megan Freckleton
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Alejandro Baeza
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Llorenç Benavent
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
| | - Rafael Chinchilla
- Instituto de Síntesis Orgánica and Dpto. de Química Orgánica; Universidad de Alicante; Apdo. 99 03080 Alicante Spain
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28
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Wang JJ, Yang H, Gou BB, Zhou L, Chen J. Enantioselective Organocatalytic Sulfenylation of β-Naphthols. J Org Chem 2018; 83:4730-4738. [PMID: 29595970 DOI: 10.1021/acs.joc.8b00487] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An enantioselective sulfenylation of β-naphthols has been developed for the first time using a newly synthesized cinchona-derived thiourea as the catalyst and N-(arylthio) succinimide (or phthalimide) as an electrophilic sulfur source. Various enantioenriched naphthalenones with an S-containing all-substituted stereocenter were prepared via a dearomatization strategy under mild reaction conditions.
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Affiliation(s)
- Jiao-Jiao Wang
- 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
| | - Hui Yang
- 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
| | - Bo-Bo Gou
- 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
| | - Ling Zhou
- 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
| | - Jie Chen
- 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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29
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Cui L, You Y, Mi X, Luo S. Catalytic enantioselective α-sulfenylation of β-ketocarbonyls by chiral primary amines. Org Chem Front 2018. [DOI: 10.1039/c8qo00496j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A simple chiral primary amine catalyst was identified to enable effective catalysis in direct α-sulfenylation of acyclic and cyclic β-ketocarbonyls with good yields and excellent enantioselectivities.
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Affiliation(s)
- Linfeng Cui
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Yang'en You
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- the Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xueling Mi
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- the Chinese Academy of Sciences
- Beijing 100190
- China
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30
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Donald JR, Taylor RJK, Petersen WF. Low-Temperature, Transition-Metal-Free Cross-Dehydrogenative Coupling Protocol for the Synthesis of 3,3-Disubstituted Oxindoles. J Org Chem 2017; 82:11288-11294. [PMID: 28926705 DOI: 10.1021/acs.joc.7b02085] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new low-temperature procedure for the synthesis of 3,3-disubstituted 2-oxindoles via cross-dehydrogenative coupling (CDC) is reported. The use of a strong, nonreversible base in these reactions has been found to effect a dramatic drop in reaction temperature (to room temperature) relative to the current state-of-the-art (>100 °C) procedure. When employing iodine as an "oxidant", new evidence suggests that this transformation may occur via a transiently stable iodinated intermediate rather than by direct single-electron oxidation.
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Affiliation(s)
- James R Donald
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Richard J K Taylor
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
| | - Wade F Petersen
- Department of Chemistry, University of York , Heslington, York YO10 5DD, U.K
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31
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Wang H, Wang K, Man Y, Gao X, Yang L, Ren Y, Li N, Tang B, Zhao G. Asymmetric Intermolecular Rauhut−Currier Reaction for the Construction of 3,3-Disubstituted Oxindoles with Quaternary Stereogenic Centers. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700649] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Hongyu Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 People's Republic of China
| | - Kaiye Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Yunquan Man
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Xiaonan Gao
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Limin Yang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Yanfei Ren
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Na Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Institute of Molecular and Nano Science; Shandong Normal University; Jinan 250014 People's Republic of China
| | - Gang Zhao
- Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Lingling Lu Shanghai 200032 People's Republic of China
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32
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Zhao JQ, Luo SW, Zhang XM, Xu XY, Zhou MQ, Yuan WC. Base-catalyzed bis-sulfenylation of γ-substituted butenolides for the synthesis of α,α-bisthiofunctionalized butenolide derivatives. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.07.053] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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33
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Tetrabutylammonium Iodide-Promoted Thiolation of Oxindoles Using Sulfonyl Chlorides as Sulfenylation Reagents. Molecules 2017; 22:molecules22081208. [PMID: 28763049 PMCID: PMC6152007 DOI: 10.3390/molecules22081208] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 07/26/2017] [Accepted: 07/28/2017] [Indexed: 11/30/2022] Open
Abstract
3-Sulfanyloxindoles were synthesised by triphenylphosphine-mediated transition-metal-free thiolation of oxindoles using sulfonyl chlorides as sulfenylation reagents. The above reaction was promoted by iodide anions, which was ascribed to the in situ conversion of sulfenyl chlorides into the more reactive sulfenyl iodides. Moreover, the thiolation of 3-aryloxindoles was facilitated by bases. The use of a transition-metal-free protocol, readily available reagents, and mild reaction conditions make this protocol more practical for preparing 3-sulfanyloxindoles than traditional methods.
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34
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E Y, Yuan T, Yin L, Xu Y. Asymmetric sulfenylation of 3-CF 3 -Oxindoles through organocatalysis with a quinidine derivative. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.05.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Noh HW, Lee C, Jang HY. Organocatalyzed α-Sulfenylation of Carbonyl Compounds UsingN-Formyl/Acyl Sulfenamides. B KOREAN CHEM SOC 2017. [DOI: 10.1002/bkcs.11098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hyeong-Wan Noh
- Department of Energy Systems Research; Ajou University; Suwon 16499 Korea
| | - Chan Lee
- Department of Energy Systems Research; Ajou University; Suwon 16499 Korea
| | - Hye-Young Jang
- Department of Energy Systems Research; Ajou University; Suwon 16499 Korea
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36
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Abstract
The construction of chiral disubstituted oxindoles is an intriguing challenge for organic chemists.
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Affiliation(s)
- Renato Dalpozzo
- Dipartimento di Chimica e Tecnologie Chimiche
- Università della Calabria
- Arcavacata di Rende (Cs) 87030
- Italy
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37
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Singha Roy SJ, Mukherjee S. “On water” catalytic enantioselective sulfenylation of deconjugated butyrolactams. Org Biomol Chem 2017; 15:6921-6925. [DOI: 10.1039/c7ob01714f] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first catalytic enantioselective α-sulfenylation of deconjugated butyrolactams has been developed using dimeric cinchona alkaloids as catalysts in water-enriched reaction medium. The applicability of the same catalyst system for enantioselective α-selenylation and formal vinylogous γ-hydroxylation of deconjugated butyrolactam has also been described.
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Affiliation(s)
| | - Santanu Mukherjee
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore 560 012
- India
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38
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39
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Yu JS, Huang HM, Ding PG, Hu XS, Zhou F, Zhou J. Catalytic Enantioselective Construction of Sulfur-Containing Tetrasubstituted Carbon Stereocenters. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01496] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jin-Sheng Yu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Hong-Mei Huang
- College
of Chemistry and Material Sciences, Sichuan Normal University, Chengdu, Sichuan 610066, P. R. China
| | - Pei-Gang Ding
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Xiao-Si Hu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Feng Zhou
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Jian Zhou
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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40
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Saidalimu I, Guo M, Tokunaga E, Shibata N. Direct Fluoro-aminosulfenylation of Active Methylenes by Dialkylaminosulfur Trifluorides under Catalyst-Free Conditions. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201600264] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ibrayim Saidalimu
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso Showa Nagoya 466-8555 Japan
| | - Ming Guo
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso Showa Nagoya 466-8555 Japan
| | - Etsuko Tokunaga
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso Showa Nagoya 466-8555 Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences; Nagoya Institute of Technology; Gokiso Showa Nagoya 466-8555 Japan
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41
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Khanal HD, Kim SH, Lee YR. Rhodium(ii)-catalyzed direct sulfenylation of diazooxindoles with disulfides. RSC Adv 2016. [DOI: 10.1039/c6ra12393g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Rhodium(ii)-catalyzed reactions for direct sulfenylation of diazooxindoles with disulfides via C–S bond formation was developed.
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Affiliation(s)
- Hari Datta Khanal
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749
- Republic of Korea
| | - Sung Hong Kim
- Analysis Research Division
- Daegu Center
- Korea Basic Science Institute
- Daegu 702-701
- Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749
- Republic of Korea
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42
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Itoh T, Nagata K, Sano D, Aoyama O, Kanemitsu T, Miyazaki M, Odanaka Y, Machida A. Phase-Transfer Catalyzed Sulfenylation of 3-Substituted-2-oxindoles. HETEROCYCLES 2016. [DOI: 10.3987/com-16-13414] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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43
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Huang L, Li J, Zhao Y, Ye X, Liu Y, Yan L, Tan CH, Liu H, Jiang Z. Chiral Bicyclic Guanidine-Catalyzed Enantioselective Sulfenylation of Oxindoles and Benzofuran-2(3H)-ones. J Org Chem 2015; 80:8933-41. [DOI: 10.1021/acs.joc.5b01606] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lisha Huang
- Institute
of Chemical Biology, Henan University, Kaifeng, Henan, 475004, P. R. China
- Key
Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Jiangtao Li
- Institute
of Chemical Biology, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Yan Zhao
- Key
Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Xinyi Ye
- Division
of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Yang Liu
- Key
Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Lin Yan
- Institute
of Chemical Biology, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Choon-Hong Tan
- Key
Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
- Division
of Chemistry and Biological Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore
| | - Hongjun Liu
- Institute
of Chemical Biology, Henan University, Kaifeng, Henan, 475004, P. R. China
- Key
Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Zhiyong Jiang
- Institute
of Chemical Biology, Henan University, Kaifeng, Henan, 475004, P. R. China
- Key
Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
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44
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You Y, Wu ZJ, Wang ZH, Xu XY, Zhang XM, Yuan WC. Enantioselective Synthesis of 3,3-Disubstituted Oxindoles Bearing Two Different Heteroatoms at the C3 Position by Organocatalyzed Sulfenylation and Selenenylation of 3-Pyrrolyl-oxindoles. J Org Chem 2015; 80:8470-7. [DOI: 10.1021/acs.joc.5b01491] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Yong You
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Jun Wu
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Zhen-Hua Wang
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Ying Xu
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiao-Mei Zhang
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Wei-Cheng Yuan
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
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45
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Wang T, Yu Z, Hoon DL, Huang KW, Lan Y, Lu Y. Highly enantioselective construction of tertiary thioethers and alcohols via phosphine-catalyzed asymmetric γ-addition reactions of 5 H-thiazol-4-ones and 5 H-oxazol-4-ones: scope and mechanistic understandings. Chem Sci 2015; 6:4912-4922. [PMID: 29142722 PMCID: PMC5664357 DOI: 10.1039/c5sc01614b] [Citation(s) in RCA: 114] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 06/02/2015] [Indexed: 12/11/2022] Open
Abstract
Phosphine-catalyzed highly enantioselective γ-additions of 5H-thiazol-4-ones and 5H-oxazol-4-ones to allenoates have been developed for the first time. With the employment of amino-acid derived bifunctional phosphines, a wide range of substituted 5H-thiazol-4-one and 5H-oxazol-4-one derivatives bearing heteroatom (S or O)-containing tertiary chiral centers were constructed in high yields and excellent enantioselectivities. The reported method provides facile access to enantioenriched tertiary thioethers/alcohols. The mechanism of the γ-addition reaction was investigated by performing DFT calculations, and the hydrogen bonding interactions between the Brønsted acid moiety of the phosphine catalysts and the "C[double bond, length as m-dash]O" unit of the donor molecules were shown to be crucial in asymmetric induction.
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Affiliation(s)
- Tianli Wang
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
| | - Zhaoyuan Yu
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China .
| | - Ding Long Hoon
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
| | - Kuo-Wei Huang
- Division of Physical Sciences and Engineering , KAUST Catalysis Center , King Abdullah University of Science and Technology , Thuwal 23955-6900 , Saudi Arabia
| | - Yu Lan
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China .
| | - Yixin Lu
- Department of Chemistry , National University of Singapore , 3 Science Drive 3 , Singapore 117543 , Singapore .
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46
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Rahaman R, Devi N, Barman P. Metal free sulfenylation of active methylene compounds and indole: TBATB mediated synthesis. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.05.062] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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47
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Feng J, Li X, Cheng JP. An asymmetric allylic alkylation reaction of 3-alkylidene oxindoles. Chem Commun (Camb) 2015; 51:14342-5. [DOI: 10.1039/c5cc06182b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient asymmetric allylic alkylation reaction with respect to 3-alkylidene oxindoles and racemic MBH carbonate has been achieved.
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Affiliation(s)
- Junjun Feng
- State Key Laboratory of Elemento-Organic Chemistry
- Department of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Xin Li
- State Key Laboratory of Elemento-Organic Chemistry
- Department of Chemistry
- Nankai University
- Tianjin 300071
- China
| | - Jin-Pei Cheng
- Collaborative Innovation Center of Chemical Science and Engineering
- Tianjin 300071
- China
- Center of Basic Molecular Science
- Department of Chemistry
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48
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Liao K, Zhou F, Yu JS, Gao WM, Zhou J. Catalytic asymmetric sulfenylation to structurally diverse dithioketals. Chem Commun (Camb) 2015; 51:16255-8. [DOI: 10.1039/c5cc07010d] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report the first example of highly enantioselective synthesis of structurally diverse chiral dithioketals via asymmetric sulfenylation of various types of S-based nucleophiles, catalyzed by a cheap cinchona alkaloid derivative, dihydroquinine.
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Affiliation(s)
- Kui Liao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Feng Zhou
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Jin-Sheng Yu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Wei-Ming Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
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49
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Zuo J, Wu ZJ, Zhao JQ, Zhou MQ, Xu XY, Zhang XM, Yuan WC. Preparation of 3-Sulfonylated 3,3-Disubstituted Oxindoles by the Addition of Sulfinate Salts to 3-Halooxindoles. J Org Chem 2014; 80:634-40. [DOI: 10.1021/jo502270a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Jian Zuo
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhi-Jun Wu
- Chengdu
Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Jian-Qiang Zhao
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ming-Qiang Zhou
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Xiao-Mei Zhang
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
| | - Wei-Cheng Yuan
- National
Engineering Research Center of Chiral Drugs, Chengdu Institute of
Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China
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50
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