1
|
Ji X, Shen C, Ni Y, Si ZY, Wang Y, Zhi X, Zhao Y, Peng H, Liu L. Stereoselective Synthesis of Polysubstituted Conjugated Dienes Enabled by Photo-Driven Sequential Sigmatropic Rearrangement. Angew Chem Int Ed Engl 2024; 63:e202400805. [PMID: 38587996 DOI: 10.1002/anie.202400805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 03/24/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
We here reported a highly stereoselective method for the synthesis of polysubstituted conjugated dienes from α-aryl α-diazo alkynyl ketones and pyrazole-substituted unsymmetric aminals under mild conditions, which was promoted by photo-irridation and involved with 1,6-dipolar intermediate and quadruple sigmatropic rearrangements, was successfully developed. In this transformation, the cleavage of four bonds and the recombination of five bonds were implemented in one operational step. This protocol provided a modular tool for constructing dienes from amines, pyrazoles and α-alkynyl-α-diazoketones in one-pot manner. The results of mechanistic investigation indicated that the plausible reaction path underwent the 1,6-sigmatropic rearrangement instead of the 1,5-sigmatropic rearrangement.
Collapse
Affiliation(s)
- Xin Ji
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Chaoren Shen
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yuhao Ni
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Zhi-Yao Si
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yuzhu Wang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Xinrong Zhi
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Yuting Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Huiling Peng
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, P. R. China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, P. R. China
| |
Collapse
|
2
|
He J, Liu XS, Li M, Peng S, Si ZY, Liu L. A rhodium-catalyzed ylide formation/Smiles rearrangement reaction of chalcogenide ether and triazoles. Org Chem Front 2023. [DOI: 10.1039/d3qo00125c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
A Rh(ii)-catalyzed highly stereoselective chalcogenide ylide formation/Smiles rearrangement reaction of diaryl thioether/selenoethers and triazoles was successfully developed.
Collapse
|
3
|
Wang Y, Jia P, Hao Y, Li J, Lai R, Guo L, Wu Y. Blue light induced [2,3]-sigmatropic rearrangement reactions of tosylhydrazones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
4
|
Nair VN, Tambar UK. Catalytic rearrangements of onium ylides in aromatic systems. Org Biomol Chem 2022; 20:3427-3439. [PMID: 35388871 PMCID: PMC10124236 DOI: 10.1039/d2ob00218c] [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
Onium ylides are reactive intermediates that undergo versatile chemical transformations to give structurally interesting compounds. Rearrangement reactions of onium ylides are of great importance to synthetic organic chemists, as they provide efficient methods for C-C bond formations as well as installation of new stereogenic centers in molecules. Traditionally, onium ylides have been shown to undergo two types of rearrangements, namely, [2,3]- and [1,2]-rearrangements. In recent years, there have been tremendous developments in the field of metal-catalyzed onium ylide rearrangements through catalytic generation of ylide intermediates from diazocompounds. Several examples of selective catalytic onium ylide rearrangements involving sulfonium, oxonium, ammonium, as well as iodonium ylides have been developed over the years especially in allylic and propargylic systems. However, when the π-system that takes part in the rearrangement is part of an aromatic ring, the selectivity for rearrangements of reactive onium ylides is more challenging. In this review, we discuss recent advances in catalyst control of onium ylide rearrangements of aromatic systems.
Collapse
Affiliation(s)
- Vaishnavi N Nair
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, USA.
| | - Uttam K Tambar
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, USA.
| |
Collapse
|
5
|
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.
Collapse
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
| |
Collapse
|
6
|
Liu XS, Tang Z, Li Z, Li M, Xu L, Liu L. Modular and stereoselective synthesis of tetrasubstituted vinyl sulfides leading to a library of AIEgens. Nat Commun 2021; 12:7298. [PMID: 34911935 PMCID: PMC8674301 DOI: 10.1038/s41467-021-27167-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 11/03/2021] [Indexed: 11/09/2022] Open
Abstract
Tetraarylethylenes exhibit intriguing photophysical properties and sulfur atom frequently play a vital role in organic photoelectric materials and biologically active compounds. Tetrasubstituted vinyl sulfides, which include both sulfur atom and tetrasubstituted alkenes motifs, might be a suitable skeleton for the discovery of the new material molecules and drug with unique functions and properties. However, how to modular synthesis these kinds of compounds is still challenging. Herein, a chemo- and stereo-selective Rh(II)-catalyzed [1,4]-acyl rearrangements of α-diazo carbonyl compounds and thioesters has been developed, providing a modular strategy to a library of 63 tetrasubstituted vinyl sulfides. In this transformation, the yield is up to 95% and the turnover number is up to 3650. The mechanism of this reaction is investigated by combining experiments and density functional theory calculation. Moreover, the "aggregation-induced emission" effect of tetrasubstituted vinyl sulfides were also investigated, which might useful in functional material, biological imaging and chemicalnsing via structural modification.
Collapse
Affiliation(s)
- Xun-Shen Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China
| | - Zhiqiong Tang
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Zhiming Li
- Department of Chemistry, Fudan University, 2005 Songhu Road, Shanghai, 200438, China.
| | - Mingjia Li
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Lin Xu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China
| | - Lu Liu
- School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai, 200241, China.
- Shanghai Engineering Research Center of Molecular Therapeutics and New Drug Development, East China Normal University, 3663 N Zhongshan Road, Shanghai, 200062, China.
| |
Collapse
|
7
|
Nair VN, Kojasoy V, Laconsay CJ, Kong WY, Tantillo DJ, Tambar UK. Catalyst-Controlled Regiodivergence in Rearrangements of Indole-Based Onium Ylides. J Am Chem Soc 2021; 143:9016-9025. [PMID: 34124896 PMCID: PMC8650141 DOI: 10.1021/jacs.1c00283] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We have developed catalyst-controlled regiodivergent rearrangements of onium-ylides derived from indole substrates. Oxonium ylides formed in situ from substituted indoles selectively undergo [2,3]- and [1,2]-rearrangements in the presence of a rhodium and a copper catalyst, respectively. The combined experimental and density functional theory (DFT) computational studies indicate divergent mechanistic pathways involving a metal-free ylide in the rhodium catalyzed reaction favoring [2,3]-rearrangement, and a metal-coordinated ion-pair in the copper catalyzed [1,2]-rearrangement that recombines in the solvent-cage. The application of our methodology was demonstrated in the first total synthesis of the indole alkaloid (±)-sorazolon B, which enabled the stereochemical reassignment of the natural product. Further functional group transformations of the rearrangement products to generate valuable synthetic intermediates were also demonstrated.
Collapse
Affiliation(s)
- Vaishnavi N Nair
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
| | - Volga Kojasoy
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Croix J Laconsay
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Wang Yeuk Kong
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Dean J Tantillo
- Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, United States
| | - Uttam K Tambar
- Department of Biochemistry, The University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, Texas 75390-9038, United States
| |
Collapse
|
8
|
Jana S, Guo Y, Koenigs RM. Recent Perspectives on Rearrangement Reactions of Ylides via Carbene Transfer Reactions. Chemistry 2021; 27:1270-1281. [PMID: 32754993 PMCID: PMC7894496 DOI: 10.1002/chem.202002556] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/29/2020] [Indexed: 01/24/2023]
Abstract
Among the available methods to increase the molecular complexity, sigmatropic rearrangements occupy a distinct position in organic synthesis. Despite being known for over a century sigmatropic rearrangement reactions of ylides via carbene transfer reaction have only recently come of age. Most of the ylide mediated rearrangement processes involve rupture of a σ-bond and formation of a new bond between π-bond and negatively charged atom followed by simultaneous redistribution of π-electrons. This minireview describes the advances in this research area made in recent years, which now opens up metal-catalyzed enantioselective sigmatropic rearrangement reactions, metal-free photochemical rearrangement reactions and novel reaction pathways that can be accessed via ylide intermediates.
Collapse
Affiliation(s)
- Sripati Jana
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Yujing Guo
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen UniversityLandoltweg 152074AachenGermany
| |
Collapse
|
9
|
Additions of N, O, and S heteroatoms to metal-supported carbenes: Mechanism and synthetic applications in modern organic chemistry. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2021. [DOI: 10.1016/bs.adomc.2021.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
10
|
Li SS, Wang J. Cu(I)/Chiral Bisoxazoline-Catalyzed Enantioselective Sommelet–Hauser Rearrangement of Sulfonium Ylides. J Org Chem 2020; 85:12343-12358. [DOI: 10.1021/acs.joc.0c01590] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Shu-Sen Li
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871, China
- The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
11
|
Xu Y, Lv G, Yan K, He H, Li J, Luo Y, Lai R, Hai L, Wu Y. Blue Light-promoted Carbene Transfer Reactions of Tosylhydrazones. Chem Asian J 2020; 15:1945-1947. [PMID: 32427419 DOI: 10.1002/asia.202000378] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 05/19/2020] [Indexed: 01/13/2023]
Abstract
Metal-free photochemical carbene-transfer reactions of tosylhydrazones were developed under blue light irradiation at room temperature. This reaction constructs C-X (X=C, N, O, S) bonds and cyclopropanes from readily available and stable starting materials.
Collapse
Affiliation(s)
- Yingying Xu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Guanghui Lv
- Department of Pharmacy, Taihe Hospital, Hubei University of Medicine, No. 32 South Renmin Road, Huibei, Shiyan, 442000, China
| | - Kaichuan Yan
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Hua He
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Jianglian Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yi Luo
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Ruizhi Lai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Li Hai
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| | - Yong Wu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, 610041, China
| |
Collapse
|
12
|
Yu X, Shang YZ, Cheng YF, Tian J, Niu Y, Gao WC. Synthesis of 4-chalcogenyl pyrazoles via electrophilic chalcogenation/cyclization of α,β-alkynic hydrazones. Org Biomol Chem 2020; 18:1806-1811. [PMID: 32096526 DOI: 10.1039/d0ob00050g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile method for the synthesis of 4-chalcogenylated pyrazoles has been developed via electrophilic chalcogenation/cyclization of α,β-alkynic hydrazones. The cyclization of α,β-alkynic aldehyde hydrazones could be induced by using either sulfenyl chloride or the S-electrophiles generated in situ from the reaction of NCS and arythiol. The developed method was successfully applied to the synthesis of the sulfenyl analogue of celecoxib.
Collapse
Affiliation(s)
- Xinzhang Yu
- Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan, 030008, P.R. China.
| | - Yu-Zhu Shang
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P.R. China.
| | - Yu-Fei Cheng
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P.R. China.
| | - Jun Tian
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P.R. China.
| | - Yulan Niu
- Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan, 030008, P.R. China.
| | - Wen-Chao Gao
- College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan, 030024, P.R. China.
| |
Collapse
|
13
|
Reddy ACS, Ramachandran K, Reddy PM, Anbarasan P. Rhodium-catalyzed Sommelet–Hauser type rearrangement of α-diazoimines: synthesis of functionalized enamides. Chem Commun (Camb) 2020; 56:5649-5652. [DOI: 10.1039/d0cc00016g] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
An efficient rhodium catalyzed Sommelet–Hauser type rearrangement of sulfur ylides derived from α-thioesters and N-sulfonyl-1,2,3-triazoles has been successfully accomplished for the synthesis of various functionalized enamides.
Collapse
Affiliation(s)
| | - Kuppan Ramachandran
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai–600036
- India
| | | | | |
Collapse
|
14
|
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
| |
Collapse
|
15
|
Reddy ACS, Anbarasan P. Rhodium-Catalyzed Rearrangement of S/Se-Ylides for the Synthesis of Substituted Vinylogous Carbonates. Org Lett 2019; 21:9965-9969. [DOI: 10.1021/acs.orglett.9b03852] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
| | - Pazhamalai Anbarasan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| |
Collapse
|
16
|
Qin H, Li Q, Xu J, Zhang J, Qu W, Liu W, Feng F, Sun H. A Mild and Direct C(sp 3)-S Cross-Coupling of Oxindoles with Thiols: Synthesis of Unsymmetrical 3-Thiooxindoles. J Org Chem 2019; 84:14342-14348. [PMID: 31580081 DOI: 10.1021/acs.joc.9b02205] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein, an operationally simple and mild strategy to construct sulfenation of oxindoles with a series of thiols in the absence of transition metals was developed. This methodology provides an efficient way to directly form a C-S bond at the C-3 position of oxindoles under mild reaction conditions with a cheap and common solvent and base in moderate to good yields.
Collapse
Affiliation(s)
- Hui Qin
- Department of Natural Medicinal Chemistry , China Pharmaceutical University , Nanjing 211198 , China
| | - Qi Li
- Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing 210009 , China
| | - Jian Xu
- Department of Natural Medicinal Chemistry , China Pharmaceutical University , Nanjing 211198 , China
| | - Jie Zhang
- Department of Natural Medicinal Chemistry , China Pharmaceutical University , Nanjing 211198 , China
| | - Wei Qu
- Department of Natural Medicinal Chemistry , China Pharmaceutical University , Nanjing 211198 , China.,Key Laboratory of Biomedical Functional Materials , China Pharmaceutical University , Nanjing 211198 , China
| | - Wenyuan Liu
- Department of Pharmaceutical Analysis , China Pharmaceutical University , Nanjing 210009 , China
| | - Feng Feng
- Department of Natural Medicinal Chemistry , China Pharmaceutical University , Nanjing 211198 , China.,Key Laboratory of Biomedical Functional Materials , China Pharmaceutical University , Nanjing 211198 , China.,Jiangsu Food and Pharmaceutical Science College , Huai'an 223003 , China
| | - Haopeng Sun
- Department of Medicinal Chemistry , China Pharmaceutical University , Nanjing 210009 , China
| |
Collapse
|
17
|
Lin X, Yang W, Yang W, Liu X, Feng X. Asymmetric Catalytic [2,3] Stevens and Sommelet–Hauser Rearrangements of α‐Diazo Pyrazoleamides with Sulfides. Angew Chem Int Ed Engl 2019; 58:13492-13498. [DOI: 10.1002/anie.201907164] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 07/18/2019] [Indexed: 01/05/2023]
Affiliation(s)
- Xiaobin Lin
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Wei Yang
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Wenkun Yang
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| |
Collapse
|
18
|
Lin X, Yang W, Yang W, Liu X, Feng X. Asymmetric Catalytic [2,3] Stevens and Sommelet–Hauser Rearrangements of α‐Diazo Pyrazoleamides with Sulfides. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907164] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiaobin Lin
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Wei Yang
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Wenkun Yang
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & TechnologyMinistry of EducationCollege of ChemistrySichuan University Chengdu 610064 China
| |
Collapse
|
19
|
Xu M, Yuan Y, Wang Y, Tao Q, Wang C, Li Y. Controllable α- or β-Functionalization of α-Diazoketones with Aromatic Amides via Cobalt-Catalyzed C–H Activation: A Regioselective Approach to Isoindolinones. Org Lett 2019; 21:6264-6269. [DOI: 10.1021/acs.orglett.9b02145] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Murong Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road 200241, Shanghai, China
| | - Yang Yuan
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road 200241, Shanghai, China
| | - Ye Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road 200241, Shanghai, China
| | - Qihai Tao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road 200241, Shanghai, China
| | - Chengyu Wang
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road 200241, Shanghai, China
| |
Collapse
|
20
|
Kaiser D, Klose I, Oost R, Neuhaus J, Maulide N. Bond-Forming and -Breaking Reactions at Sulfur(IV): Sulfoxides, Sulfonium Salts, Sulfur Ylides, and Sulfinate Salts. Chem Rev 2019; 119:8701-8780. [PMID: 31243998 PMCID: PMC6661881 DOI: 10.1021/acs.chemrev.9b00111] [Citation(s) in RCA: 447] [Impact Index Per Article: 89.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Indexed: 12/13/2022]
Abstract
Organosulfur compounds have long played a vital role in organic chemistry and in the development of novel chemical structures and architectures. Prominent among these organosulfur compounds are those involving a sulfur(IV) center, which have been the subject of countless investigations over more than a hundred years. In addition to a long list of textbook sulfur-based reactions, there has been a sustained interest in the chemistry of organosulfur(IV) compounds in recent years. Of particular interest within organosulfur chemistry is the ease with which the synthetic chemist can effect a wide range of transformations through either bond formation or bond cleavage at sulfur. This review aims to cover the developments of the past decade in the chemistry of organic sulfur(IV) molecules and provide insight into both the wide range of reactions which critically rely on this versatile element and the diverse scaffolds that can thereby be synthesized.
Collapse
Affiliation(s)
- Daniel Kaiser
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Immo Klose
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Rik Oost
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - James Neuhaus
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| | - Nuno Maulide
- Institute
of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090 Vienna, Austria
| |
Collapse
|
21
|
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
| |
Collapse
|
22
|
Yang Z, Guo Y, Koenigs RM. Photochemical, Metal‐Free Sigmatropic Rearrangement Reactions of Sulfur Ylides. Chemistry 2019; 25:6703-6706. [DOI: 10.1002/chem.201900597] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Zhen Yang
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Yujing Guo
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 52074 Aachen Germany
| |
Collapse
|
23
|
Affiliation(s)
- Sripati Jana
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| | - Rene M. Koenigs
- Institute of Organic ChemistryRWTH Aachen University Landoltweg 1 D-52074 Aachen Germany
| |
Collapse
|
24
|
Ge Y, Sun W, Chen Y, Huang Y, Liu Z, Jiang Y, Loh TP. Reactions of 5-Aminoisoxazoles with α-Diazocarbonyl Compounds: Wolff Rearrangement vs N-H Insertion. J Org Chem 2019; 84:2676-2688. [PMID: 30702883 DOI: 10.1021/acs.joc.8b02986] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly chemoselective reaction between 5-aminoisoxazoles and α-diazocarbonyl compounds has been described. Both Wolff rearrangement and N-H insertion products can be obtained selectively by the judicious choice of reaction conditions. In the case of the Wolff rearrangement reactions, the N-isoxazole amides are accessed as the sole products under thermal conditions. On the other hand, α-amino acid derivatives of N-isoxazolescan be obtained through N-H insertion reactions in the presence of catalytic Rh2(Oct)4. Both reactions proceed under mild reaction conditions and feature a broad substrate scope.
Collapse
Affiliation(s)
- Yun Ge
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Wangbin Sun
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Yang Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Yulin Huang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Zhuang Liu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Yaojia Jiang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering , Nanjing Tech University , Nanjing 211816 , China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371 , Singapore
| |
Collapse
|
25
|
Gaykar RN, Bhattacharjee S, Biju AT. Transition-Metal-Free Thioamination of Arynes Using Sulfenamides. Org Lett 2019; 21:737-740. [PMID: 30648876 DOI: 10.1021/acs.orglett.8b03966] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The insertion of arynes into the S-N σ-bond of sulfenamides allowing the synthesis of o-sulfanylaniline derivatives with reasonable functional group compatibility is presented. The aryne generated from 2-(trimethylsilyl)aryl triflates using CsF in DME was the key for the success of this transition-metal-free thioamination reaction, which involves new C-N and C-S bond formations in a single step under mild conditions. Moreover, the synthetic potential of this method was demonstrated by the synthesis of the antidepressant drug vortioxetine.
Collapse
Affiliation(s)
- Rahul N Gaykar
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560012 , India
| | - Subrata Bhattacharjee
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560012 , India
| | - Akkattu T Biju
- Department of Organic Chemistry , Indian Institute of Science , Bangalore 560012 , India
| |
Collapse
|
26
|
Roy T, Gaykar RN, Bhattacharjee S, Biju AT. The aryne Sommelet–Hauser rearrangement. Chem Commun (Camb) 2019; 55:3004-3007. [DOI: 10.1039/c9cc00629j] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An aryne induced transition-metal-free and mild Sommelet–Hauser rearrangement of tertiary benzylamines for the synthesis of α-aryl amino acid derivatives in moderate to good yields and with broad substrate scope is presented.
Collapse
Affiliation(s)
- Tony Roy
- Organic Chemistry Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune 411008
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Rahul N. Gaykar
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore-560012
- India
| | | | - Akkattu T. Biju
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore-560012
- India
| |
Collapse
|
27
|
Zuo Y, He X, Ning Y, Tang Q, Xie M, Hu W, Shang Y. Substituent-oriented C–N bond formation via N–H insertion or Wolff rearrangement of 5-aryl-1H-pyrazoles and diazo compounds. Org Biomol Chem 2019; 17:9766-9771. [DOI: 10.1039/c9ob01868a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Substituent-oriented C–N bond formation of 5-aryl-1H-pyrazoles with diazo compounds.
Collapse
Affiliation(s)
- Youpeng Zuo
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Xinwei He
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yi Ning
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Qiang Tang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Mengqing Xie
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Wangcheng Hu
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials (State Key Laboratory Cultivation Base)
- College of Chemistry and Materials Science
- Anhui Normal University
| |
Collapse
|
28
|
Shen SJ, Du XL, Xu XL, Wu YH, Zhao MG, Liang JY. Combined inorganic base promoted N-addition/[2,3]-sigmatropic rearrangement to construct homoallyl sulfur-containing pyrazolones. RSC Adv 2019; 9:34912-34925. [PMID: 35542052 PMCID: PMC9082452 DOI: 10.1039/c9ra07610g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 10/22/2019] [Indexed: 12/29/2022] Open
Abstract
The first sequentially combined inorganic base promoted N-addition/[2,3]-sigmatropic rearrangement reaction of α-alkylidene pyrazolinones and propargyl sulfonium salts has been reported to construct homoallyl sulfur-containing pyrazolones with moderate to excellent yields. α-Alkylidene pyrazolinones function as N-nucleophilic agents distinguished from the reported C-addition reactions. Propargyl sulfonium salts were first involved in the [2,3]-sigmatropic rearrangement protocol differentiated from the well-established annulation reactions. The excellent regioselectivity, the broad scope of substrates, gram-scale synthesis and convenient transformation embody the synthetic superiority of this cascade process. The combined inorganic base promoted N-addition/[2,3]-sigmatropic rearrangement of α-alkylidene pyrazolinones and propargyl sulfonium salts has been reported to construct homoallyl sulfur-containing pyrazolones with moderate to excellent yields.![]()
Collapse
Affiliation(s)
- Shou-Jie Shen
- Key Laboratory of Magnetic Molecules
- Magnetic Information Materials Ministry of Education
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
| | - Xiao-Li Du
- Key Laboratory of Magnetic Molecules
- Magnetic Information Materials Ministry of Education
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
| | - Xiao-Li Xu
- College of Life Science
- Shanxi Normal University
- Linfen
- China
| | - Yue-Hua Wu
- College of Life Science
- Shanxi Normal University
- Linfen
- China
| | - Ming-gang Zhao
- Key Laboratory of Magnetic Molecules
- Magnetic Information Materials Ministry of Education
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
| | - Jin-Yan Liang
- College of Life Science
- Shanxi Normal University
- Linfen
- China
| |
Collapse
|
29
|
Yang Z, Guo Y, Koenigs RM. Solvent-dependent, rhodium catalysed rearrangement reactions of sulfur ylides. Chem Commun (Camb) 2019; 55:8410-8413. [DOI: 10.1039/c9cc03809d] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Depending on the solvent used, benzyl sulfides undergo in the presence of a rhodium(ii) catalyst either [1,2]- or [2,3]-sigmatropic rearrangement.
Collapse
Affiliation(s)
- Zhen Yang
- RWTH Aachen University
- Institute of Organic Chemistry
- D-52074 Aachen
- Germany
| | - Yujing Guo
- RWTH Aachen University
- Institute of Organic Chemistry
- D-52074 Aachen
- Germany
| | - Rene M. Koenigs
- RWTH Aachen University
- Institute of Organic Chemistry
- D-52074 Aachen
- Germany
| |
Collapse
|
30
|
Sharma N, Peddinti RK. Experimental and theoretical investigations of regioselective functionalization of 3-hydroxy bisindoles with thiols. Org Biomol Chem 2018; 16:9259-9268. [PMID: 30465586 DOI: 10.1039/c8ob02118j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An instant and efficient p-TSA·H2O-catalyzed sulfenylation reaction of 3-hydroxy bisindole derivatives is reported. This highly regioselective approach afforded C-3 functionalized products in excellent yield, and this methodology was found to be compatible with both aromatic and aliphatic thiols having electronic and steric divergence as well as diverse functional groups. The sulfenylation reaction was performed at room temperature with a green solvent with minimal catalyst loading and proceeded with the involvement of a quasi-antiaromatic-2H-indol-2-one ring intermediate. Moreover, the experimental results obtained for the sulfenylation reaction of 3-hydroxy bisindoles were supported by theoretical calculations in order to comprehend the regioselectivity and chemical reactivity observed in the thiolation reaction of 3-hydroxy bisindoles. The protocol involved the SN1 pathway, as also demonstrated by theoretical calculations.
Collapse
Affiliation(s)
- Nitika Sharma
- Department of Chemistry, Indian Institute of Technology, Roorkee-247667, Uttarakhand, India.
| | | |
Collapse
|
31
|
Pan C, Guo W, Gu Z. Unusual biaryl torsional strain promotes reactivity in Cu-catalyzed Sommelet-Hauser rearrangement. Chem Sci 2018; 9:5850-5854. [PMID: 30079198 PMCID: PMC6050577 DOI: 10.1039/c8sc01657g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 06/13/2018] [Indexed: 11/23/2022] Open
Abstract
A Cu-catalyzed Sommelet-Hauser dearomatization of dihydrophenanthridine and diazo compounds is reported for the synthesis of spiro-indolines. A spiro-structure with adjacent quaternary and tertiary carbon centers was constructed in one step as a single isomer. Increasing steric hindrance by introducing ortho-substituents dramatically improved substrate reactivity in this transformation.
Collapse
Affiliation(s)
- Chongqing Pan
- Department of Chemistry , Center for Excellence in Molecular Synthesis , Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China .
| | - Wenjing Guo
- Department of Chemistry , Center for Excellence in Molecular Synthesis , Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China .
| | - Zhenhua Gu
- Department of Chemistry , Center for Excellence in Molecular Synthesis , Hefei National Laboratory for Physical Sciences at the Microscale , University of Science and Technology of China , 96 Jinzhai Road , Hefei , Anhui 230026 , China .
| |
Collapse
|
32
|
Metal-catalyzed synthesis of five-membered ring N-heterocycles. A recent update. Chem Heterocycl Compd (N Y) 2018. [DOI: 10.1007/s10593-018-2260-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
33
|
Neuhaus JD, Oost R, Merad J, Maulide N. Sulfur-Based Ylides in Transition-Metal-Catalysed Processes. Top Curr Chem (Cham) 2018; 376:15. [PMID: 29654469 PMCID: PMC5899105 DOI: 10.1007/s41061-018-0193-4] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 03/22/2018] [Indexed: 01/05/2023]
Abstract
Traditionally employed in the synthesis of small ring systems and rearrangement chemistry, sulfur-based ylides occupy a unique position in the toolbox of the synthetic organic chemist. In recent years a number of pioneering researchers have looked to expand the application of these unorthodox reagents through the use of transition metal catalysis. The strength and flexibility of such a combination have been shown to be of key importance in developing powerful novel methodologies. This chapter summarises recent developments in transition metal-catalysed sulfonium/sulfoxonium ylide reactions, as well as providing a historical perspective. In overviewing the successes in this area, the authors hope to encourage others into this growing field.
Collapse
Affiliation(s)
- James D Neuhaus
- Institute of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria
| | - Rik Oost
- Institute of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria
| | - Jérémy Merad
- Institute of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Straße 38, 1090, Vienna, Austria.
| |
Collapse
|
34
|
Rao C, Mai S, Song Q. Rh(ii)/phosphine-cocatalyzed synthesis of dithioketal derivatives from diazo compounds through simultaneous construction of two different C–S bonds. Chem Commun (Camb) 2018; 54:5964-5967. [DOI: 10.1039/c8cc01656a] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rhodium(ii)/phosphine-cocatalyzed bis-sulfuration of α-diazocarbonyl compounds using thiosulfonates as the sulfenylating agent, which provided two sulfur-containing moieties, was developed via simultaneous inter- and intra-molecular C–S bond formation.
Collapse
Affiliation(s)
- Changqing Rao
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Shaoyu Mai
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering and College of Material Sciences Engineering at Huaqiao University
- Xiamen
- P. R. China
| |
Collapse
|
35
|
Tayama E, Sotome S. Dearomative [2,3] sigmatropic rearrangement of ammonium ylides followed by 1,4-elimination to form α-(ortho-vinylphenyl)amino acid esters. Org Biomol Chem 2018; 16:4833-4839. [DOI: 10.1039/c8ob01091a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A base-induced dearomative [2,3] sigmatropic rearrangement followed by 1,4-elimination produced α-(ortho-vinylphenyl)amino acid esters.
Collapse
Affiliation(s)
- Eiji Tayama
- Department of Chemistry
- Faculty of Science
- Niigata University
- Niigata
- Japan
| | - Sho Sotome
- Graduate School of Science and Technology
- Niigata University
- Niigata
- Japan
| |
Collapse
|
36
|
Alom NE, Rina YA, Li W. Intermolecular Regio- and Stereoselective Sulfenoamination of Alkenes with Thioimidazoles. Org Lett 2017; 19:6204-6207. [DOI: 10.1021/acs.orglett.7b03128] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nur-E Alom
- Department of Chemistry and
Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Yesmin Akter Rina
- Department of Chemistry and
Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| | - Wei Li
- Department of Chemistry and
Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 West Bancroft Street, Toledo, Ohio 43606, United States
| |
Collapse
|
37
|
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.
Collapse
|
38
|
Transition metal-catalyzed [2,3]-sigmatropic rearrangements of ylides: An update of the most recent advances. Tetrahedron 2017. [DOI: 10.1016/j.tet.2016.11.045] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
39
|
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]
|
40
|
Yang Z, Lin X, Wang L, Cui X. Facile synthesis of 1-aminoindoles via Rh(iii)-catalysed intramolecular three-component annulation. Org Chem Front 2017. [DOI: 10.1039/c7qo00541e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A simple and efficient procedure to 1-aminoindoles starting from easily available aryl hydrazines, diazo compounds and ketones via a rhodium-catalyzed [3 + 2] annulative coupling reaction.
Collapse
Affiliation(s)
- Zi Yang
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Xing Lin
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Lianhui Wang
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| |
Collapse
|
41
|
Oost R, Neuhaus JD, Merad J, Maulide N. Sulfur Ylides in Organic Synthesis and Transition Metal Catalysis. MODERN YLIDE CHEMISTRY 2017. [DOI: 10.1007/430_2017_14] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
42
|
Xu X, Li C, Xiong M, Tao Z, Pan Y. Hemin-catalyzed sulfonium ylide formation and subsequently reactant-controlled chemoselective rearrangements. Chem Commun (Camb) 2017; 53:6219-6222. [DOI: 10.1039/c7cc02484c] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The Stevens and Sommelet–Hauser rearrangements can be controlled by the electronic property of the substituents on the benzyl group together with solvent effects.
Collapse
Affiliation(s)
- Xiaofei Xu
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Chang Li
- College of Life Sciences
- Zhejiang Chinese Medical University
- Hangzhou 310053
- People's Republic of China
| | - Mingteng Xiong
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Zhihao Tao
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| | - Yuanjiang Pan
- Department of Chemistry
- Zhejiang University
- Hangzhou 310027
- People's Republic of China
| |
Collapse
|
43
|
Reddy BN, Ramana CV. Synthesis of Functionalized 6-Hydroxy-2-oxindole Derivatives by Phenoxide Cyclization. Org Lett 2016; 18:6264-6267. [PMID: 27978630 DOI: 10.1021/acs.orglett.6b03048] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An apparent intramolecular cross-dehydrogenative coupling of N-(3-hydroxy)monoanilide of maleic esters comprising base promoted phenoxide cyclization and subsequent base-mediated aerobic oxidation was developed to synthesize a variety of 2-(6-hydroxy-2-oxoindolin-3-ylidene)acetate derivatives. The isolation of intermediate cyclized products during the large scale reactions and their ready dehydrogenation with 1 equiv of base support this proposed two-step path.
Collapse
Affiliation(s)
- B Narendraprasad Reddy
- Division of Organic Chemistry, CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pune-411008, India
| | - Chepuri V Ramana
- Division of Organic Chemistry, CSIR-National Chemical Laboratory , Dr. Homi Bhabha Road, Pune-411008, India
| |
Collapse
|
44
|
Liu Y, Zhang K, Huang Y, Pan S, Liu XQ, Yang Y, Jiang Y, Xu XH. Synthesis of 3-fluoroalkenyl-3-trifluoromethyl-2-oxindoles by the reaction of indoline-2,3-diones with difluoromethylene phosphabetaine. Chem Commun (Camb) 2016; 52:5969-72. [PMID: 27056087 DOI: 10.1039/c6cc00666c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An unprecedent reaction of indoline-2,3-diones and (triphenylphosphonio)difluoroacetate (PDFA) afforded novel 3-fluoroalkenyl-3-trifluoromethyl-2-oxindoles in moderate to excellent yields. These products could be transformed into other trifluoromethylated oxindole derivatives.
Collapse
Affiliation(s)
- Yingle Liu
- School of Chemistry and Pharmaceutical Engineering, Sichuan University of Science & Engineering, 180 Xueyuan Street, Huixing Lu, Zigong, Sichuan 643000, China.
| | | | | | | | | | | | | | | |
Collapse
|
45
|
Han JB, Qin HL, Ye SH, Zhu L, Zhang CP. A Metal-Free Diverse Synthesis of Difluoromethylthioethers and Difluorobis(arylthio)methanes from RSX (X = SR, Cl, SO2Ph) and TMSCF2H. J Org Chem 2016; 81:2506-12. [DOI: 10.1021/acs.joc.6b00089] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jia-Bin Han
- School
of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, China
| | - Hua-Li Qin
- School
of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, China
| | - Su-Hong Ye
- School
of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, China
| | - Lei Zhu
- College
of Chemistry and Materials Science, Hubei Engineering University, Hubei, 432000, China
| | - Cheng-Pan Zhang
- School
of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, China
| |
Collapse
|
46
|
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.
Collapse
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
| |
Collapse
|
47
|
Song Z, Wu Y, Xin T, Jin C, Wen X, Sun H, Xu QL. The Rh(ii)-catalyzed formal N–S bond insertion reaction of aryldiazoacetates into N-phenyl-sulfenyl phthalimide. Chem Commun (Camb) 2016; 52:6079-82. [DOI: 10.1039/c6cc02641a] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The Rh(ii)-catalyzed sulfur ylide [1,2]-rearrangement of carbenoids generated from aryldiazoacetates has been realized via N–S bond insertion under low catalyst loading.
Collapse
Affiliation(s)
- Zhuang Song
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Yizhou Wu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Tao Xin
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Chao Jin
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Xiaoan Wen
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Hongbin Sun
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| | - Qing-Long Xu
- Jiangsu Key Laboratory of Drug Discovery for Metabolic Disease and State Key Laboratory of Natural Medicines
- China Pharmaceutical University
- Nanjing 210009
- China
| |
Collapse
|
48
|
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]
|
49
|
Ford A, Miel H, Ring A, Slattery CN, Maguire AR, McKervey MA. Modern Organic Synthesis with α-Diazocarbonyl Compounds. Chem Rev 2015; 115:9981-10080. [PMID: 26284754 DOI: 10.1021/acs.chemrev.5b00121] [Citation(s) in RCA: 1093] [Impact Index Per Article: 121.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
| | - Hugues Miel
- Almac Discovery Ltd. , David Keir Building, Stranmillis Road, Belfast BT9 5AG, United Kingdom
| | | | | | | | - M Anthony McKervey
- Almac Sciences Ltd. , Almac House, 20 Seagoe Industrial Estate, Craigavon BT63 5QD, United Kingdom
| |
Collapse
|
50
|
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
| |
Collapse
|