1
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Li E, Liao X, Guo F, Huang Y, Chen J. N-Heterocyclic Carbene-Catalyzed Asymmetric S N2 Alkylation via Noncovalent Activation. Org Lett 2024. [PMID: 39092835 DOI: 10.1021/acs.orglett.4c02082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
The field of asymmetric catalysis has been developed by exploring noncovalent interactions, particularly within N-heterocyclic carbene-mediated processes. Despite challenges due to the limited number of compatible electrophiles (predominantly π-acceptors), this study introduces the first asymmetric α-alkylation of 3-aryl oxindoles using Csp3 electrophiles. The innovative protocol integrates diverse oxindoles and alkyl, allyl, and propargyl electrophiles, achieving high yields and enantioselectivities. Preliminary mechanistic explorations support a noncovalent catalytic mechanism, enhancing the tool kit for constructing complex chiral molecules with potential applications.
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Affiliation(s)
- En Li
- Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, Shenzhen 518118, China
| | - Xiaoyun Liao
- Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, Shenzhen 518118, China
| | - Fangfang Guo
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, China
| | - Yong Huang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon 999077, Hong Kong SAR, China
| | - Jiean Chen
- Pingshan Translational Medicine Center, Shenzhen Bay Laboratory, Shenzhen 518118, China
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2
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Alemán J, Humbrías-Martín J, Del Río-Rodríguez R, Aguilar-Galindo F, Díaz-Tendero S, Fernández-Salas JA. Bicarbonate-binding catalysis for the enantioselective desymmetrization of keto sulfonium salts. Nat Commun 2024; 15:4727. [PMID: 38830865 PMCID: PMC11148132 DOI: 10.1038/s41467-024-48832-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 05/14/2024] [Indexed: 06/05/2024] Open
Abstract
Herein, an enantioselective desymmetrization of cyclic keto sulfonium salts through enantioselective deprotonation/ring opening process by anion-binding catalysis is presented. We report a squaramide/HCO3- complex as catalytic active species which is able to stereo-differentiate two enantiomeric protons, triggering the ring opening event taking advantage of the great tendency of sulfonium salts to act as leaving groups. Thus, this desymmetrization methodology give rise to β-methylsulfenylated sulfa-Michael addition type products with excellent yields and very good enantioselectivities. The bifunctional organocatalyst has been demonstrated to be capable of activating simultaneously the base and the keto sulfonium salt by DFT calculations and experimental proofs.
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Affiliation(s)
- José Alemán
- Departamento de Química Orgánica (módulo 1), Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain.
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid, Spain.
- Center for Innovation in Advanced Chemistry (ORFEO-CINQA), Universidad Autónoma de Madrid, Madrid, Spain.
| | - Jorge Humbrías-Martín
- Departamento de Química Orgánica (módulo 1), Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain
| | - Roberto Del Río-Rodríguez
- Departamento de Química Orgánica (módulo 1), Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain
| | - Fernando Aguilar-Galindo
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid, Spain
- Departamento de Química, Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain
| | - Sergio Díaz-Tendero
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid, Spain
- Departamento de Química, Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain
- Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, Madrid, Spain
| | - Jose A Fernández-Salas
- Departamento de Química Orgánica (módulo 1), Universidad Autónoma de Madrid, Cantoblanco, Madrid, Spain.
- Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Madrid, Spain.
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3
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Wang SJ, Wang X, Xin X, Zhang S, Yang H, Wong MW, Lu S. Organocatalytic diastereo- and atroposelective construction of N-N axially chiral pyrroles and indoles. Nat Commun 2024; 15:518. [PMID: 38225235 PMCID: PMC10789812 DOI: 10.1038/s41467-024-44743-z] [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: 02/11/2023] [Accepted: 12/28/2023] [Indexed: 01/17/2024] Open
Abstract
The construction of N-N axially chiral motifs is an important research topic, owing to their wide occurrence in natural products, pharmaceuticals and chiral ligands. One efficient method is the atroposelective dihydropyrimidin-4-one formation. We present herein a direct catalytic synthesis of N-N atropisomers with simultaneous creation of contiguous axial and central chirality by oxidative NHC (N-heterocyclic carbenes) catalyzed (3 + 3) cycloaddition. Using our method, we are able to synthesize structurally diverse N-N axially chiral pyrroles and indoles with vicinal central chirality or bearing a 2,3-dihydropyrimidin-4-one moiety in moderate to good yields and excellent enantioselectivities. Further synthetic transformations of the obtained axially chiral pyrroles and indoles derivative products are demonstrated. The reaction mechanism and the origin of enantioselectivity are understood through DFT calculations.
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Affiliation(s)
- Shao-Jie Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Xia Wang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Xiaolan Xin
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Shulei Zhang
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China
| | - Hui Yang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore
| | - Ming Wah Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore, 117543, Singapore.
| | - Shenci Lu
- Frontiers Science Center for Flexible Electronics (FSCFE), Shaanxi Institute of Flexible Electronics (SIFE) & Shaanxi Institute of Biomedical Materials and Engineering (SIBME), Northwestern Polytechnical University (NPU), 127 West Youyi Road, Xi'an, 710072, China.
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4
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Nong Y, Pang C, Teng K, Zhang S, Liu Q. NHC-Catalyzed Chemoselective Reactions of Enals and Cyclopropylcarbaldehydes for Access to Chiral Dihydropyranone Derivatives. J Org Chem 2023; 88:13535-13543. [PMID: 37682310 DOI: 10.1021/acs.joc.3c01171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/09/2023]
Abstract
An N-heterocyclic carbene (NHC)-catalyzed chemoselective activation reaction of 1-cyclopropylcarbaldehydes and α-alkynyl enals is reported. NHC selectively catalyzes 1-cyclopropylaldehydes, followed by a [2 + 4] cycloaddition reaction with α-alkynyl enals. The target dihydropyranone derivatives bearing different substituents and substitution patterns can be obtained in good to excellent yields with excellent enantio- and diastereoselectivities under mild conditions.
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Affiliation(s)
- Yingling Nong
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Chen Pang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Kunpeng Teng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Sheng Zhang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
| | - Qian Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
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5
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Ye M, Xu Y, Song T, Gao Z. NbCl 5-catalyzed sulfa-Michael addition for constructing quaternary centers in enones. Org Biomol Chem 2023; 21:7100-7105. [PMID: 37526152 DOI: 10.1039/d3ob00911d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2023]
Abstract
A novel NbCl5-catalyzed sulfa-conjugate addition has been developed to construct quaternary centers in various enones. This new method enables a range of functionalized thiols to access different β-sulfido carbonyl compounds bearing a quaternary center. 27 novel β-sulfido ketones have been obtained with moderate to excellent yields. The preparative scale reactions also proceed well, showing no decrease in yield. We further studied the mechanism by DFT calculations. This methodology is significant in sulfur chemistry, especially in sulfa-conjugate addition, giving a new pathway to add thiols to tri-substituted enones.
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Affiliation(s)
- Mingxia Ye
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China.
| | - Yingying Xu
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China.
| | - Tianhang Song
- Shijiazhuang Tianhang Science & Technology Co., Ltd., Shijiazhuang, Hebei, China.
| | - Zhenbo Gao
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China.
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6
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Racochote S, Naweephattana P, Surawatanawong P, Kuhakarn C, Leowanawat P, Reutrakul V, Soorukram D. Base-catalyzed diastereodivergent thia-Michael addition to chiral β-trifluoromethyl-α,β-unsaturated N-acylated oxazolidin-2-ones. Org Biomol Chem 2023; 21:7180-7187. [PMID: 37624045 DOI: 10.1039/d3ob00999h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Base-catalyzed diastereodivergent thia-Michael addition of thiols to chiral β-trifluoromethyl-α,β-unsaturated N-acylated oxazolidin-2-ones is reported. By tuning the base-catalyst (i-Pr2NEt, DABCO, or P2-t-Bu), a range of chiral thia-Michael adducts was synthesized in good yields with high diastereoselectivities. A plausible mechanism was proposed on the basis of the experimental results. This work is complementary to the existing methods offering advantages, e.g., switchable diastereoselectivity using a readily synthesized chiral starting material, a cheap and readily available base catalyst, and a simple and practical operation, enabling synthetic application in organic synthesis.
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Affiliation(s)
- Sasirome Racochote
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Phiphob Naweephattana
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Panida Surawatanawong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Chutima Kuhakarn
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Pawaret Leowanawat
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Vichai Reutrakul
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
| | - Darunee Soorukram
- Department of Chemistry and Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Mahidol University, Rama VI Road, Bangkok 10400, Thailand.
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7
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Yang J, Xie D, Ma X. Recent Advances in Chemical Synthesis of Amino Sugars. Molecules 2023; 28:4724. [PMID: 37375279 DOI: 10.3390/molecules28124724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
Amino sugars are a kind of carbohydrates with one or more hydroxyl groups replaced by an amino group. They play crucial roles in a broad range of biological activities. Over the past few decades, there have been continuing efforts on the stereoselective glycosylation of amino sugars. However, the introduction of glycoside bearing basic nitrogen is challenging using conventional Lewis acid-promoted pathways owing to competitive coordination of the amine to the Lewis acid promoter. Additionally, diastereomeric mixtures of O-glycoside are often produced if aminoglycoside lack a C2 substituent. This review focuses on the updated overview of the way to stereoselective synthesis of 1,2-cis-aminoglycoside. The scope, mechanism, and the applications in the synthesis of complex glycoconjugates for the representative methodologies were also included.
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Affiliation(s)
- Jian Yang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Demeng Xie
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Xiaofeng Ma
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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8
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Zhang R, Huang S, Gao Z. NBS-mediated elimination of β-keto sulfides to access enones and dienones. Org Biomol Chem 2023; 21:1163-1167. [PMID: 36647815 DOI: 10.1039/d2ob02135h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A novel transformation of β-keto sulfides into enones has been developed. The new method facilitates an NBS-mediated elimination of sulfides to access both enones and dienones. 22 enone products were obtained in moderate to high yields. 4 different dienones were also prepared in 73%-93% yields. 7 different alkylthio motifs have been removed efficiently from β-keto sulfides. We also found that our transformation proceeds well in gram-scale reactions showing no decrease in yield. This methodology is significant in the research and application of sulfides, giving a new pathway to transform β-keto sulfides into enones.
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Affiliation(s)
- Ruinan Zhang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China.
| | - Siwei Huang
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China.
| | - Zhenbo Gao
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, Jiangsu, China.
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9
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Begum Z, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. New boro amino amide organocatalysts for asymmetric cross aldol reaction of ketones with carbonyl compounds. RSC Adv 2023; 13:888-894. [PMID: 36686933 PMCID: PMC9811241 DOI: 10.1039/d2ra06272k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 12/20/2022] [Indexed: 01/05/2023] Open
Abstract
Distinct types of new boron fused primary amino amide organocatalysts were designed and synthesized from commercially available amino acids. Their catalytic activities were investigated in asymmetric crossed aldol reaction of ketones with aromatic aldehydes to afford the corresponding chiral anti-aldol adducts with good chemical yields, moderate diastereoselectivity and good to excellent enantioselectivities (up to 94% yields, up to 90 : 10 dr, up to 94% ee).
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Affiliation(s)
- Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University4-4-1 Komatsushima, Aoba-KuSendai 981-8558Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku University6-3 Aoba, Aramaki, Aoba-KuSendai 980-8578Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
| | - Michio Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | - Suguru Tokiwa
- Tokiwakai Group62 Numajiri Tsuduri-Chou UchigoIwaki 973-8053Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology27-1 Mizumoto-choMuroran 050-8585Japan
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10
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Motiwala HF, Armaly AM, Cacioppo JG, Coombs TC, Koehn KRK, Norwood VM, Aubé J. HFIP in Organic Synthesis. Chem Rev 2022; 122:12544-12747. [PMID: 35848353 DOI: 10.1021/acs.chemrev.1c00749] [Citation(s) in RCA: 117] [Impact Index Per Article: 58.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
1,1,1,3,3,3-Hexafluoroisopropanol (HFIP) is a polar, strongly hydrogen bond-donating solvent that has found numerous uses in organic synthesis due to its ability to stabilize ionic species, transfer protons, and engage in a range of other intermolecular interactions. The use of this solvent has exponentially increased in the past decade and has become a solvent of choice in some areas, such as C-H functionalization chemistry. In this review, following a brief history of HFIP in organic synthesis and an overview of its physical properties, literature examples of organic reactions using HFIP as a solvent or an additive are presented, emphasizing the effect of solvent of each reaction.
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Affiliation(s)
- Hashim F Motiwala
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Ahlam M Armaly
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jackson G Cacioppo
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Thomas C Coombs
- Department of Chemistry, University of North Carolina Wilmington, Wilmington, North Carolina 28403 United States
| | - Kimberly R K Koehn
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Verrill M Norwood
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
| | - Jeffrey Aubé
- Divison of Chemical Biology and Medicinal Chemistry, UNC Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599 United States
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11
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Li E, Chen J, Huang Y. Enantioselective Seleno‐Michael Addition Reactions Catalyzed by a Chiral Bifunctional N‐Heterocyclic Carbene with Noncovalent Activation. Angew Chem Int Ed Engl 2022; 61:e202202040. [DOI: 10.1002/anie.202202040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Indexed: 11/08/2022]
Affiliation(s)
- En Li
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen 518055 China
- Pingshan Translational Medicine Center Shenzhen Bay Laboratory Shenzhen 518118 China
| | - Jiean Chen
- Pingshan Translational Medicine Center Shenzhen Bay Laboratory Shenzhen 518118 China
| | - Yong Huang
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
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12
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Li E, Chen J, Huang Y. Enantioselective Seleno‐Michael Addition Reactions Catalyzed by a Chiral Bifunctional N‐Heterocyclic Carbene with Noncovalent Activation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- En Li
- State Key Laboratory of Chemical Oncogenomics Peking University Shenzhen Graduate School Shenzhen 518055 China
- Pingshan Translational Medicine Center Shenzhen Bay Laboratory Shenzhen 518118 China
| | - Jiean Chen
- Pingshan Translational Medicine Center Shenzhen Bay Laboratory Shenzhen 518118 China
| | - Yong Huang
- Department of Chemistry The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
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13
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Yao T, Li J, Wang J, Zhao C. Recent Advances for the Construction of Seven-Membered Ring Catalyzed by N-Heterocyclic Carbenes. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Bołt M, Hanek K, Żak P. Metal-free thioesterification of α,β-unsaturated aldehydes with thiols. Org Chem Front 2022. [DOI: 10.1039/d2qo00678b] [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
For the first time, the synthesis of thioesters starting from enals and thiols has been performed in the presence of a bulky N-heterocyclic carbene (NHC) as a catalyst.
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Affiliation(s)
- Małgorzata Bołt
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznańskiego 8, 61-614 Poznan, Poland
| | - Kamil Hanek
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznańskiego 8, 61-614 Poznan, Poland
| | - Patrycja Żak
- Department of Organometallic Chemistry, Faculty of Chemistry, Adam Mickiewicz University in Poznan, Uniwersytetu Poznańskiego 8, 61-614 Poznan, Poland
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15
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Wang J, Zhao C, Wang J. Recent Progress toward the Construction of Axially Chiral Molecules Catalyzed by an N-heterocyclic Carbene. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03459] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jiaming Wang
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beiing 100875, People’s Republic of China
| | - Changgui Zhao
- Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beiing 100875, People’s Republic of China
| | - Jian Wang
- School of Pharmaceutical Sciences, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, People’s Republic of China
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16
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Guo F, Chen J, Huang Y. A Bifunctional N-Heterocyclic Carbene as a Noncovalent Organocatalyst for Enantioselective Aza-Michael Addition Reactions. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01908] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Fangfang Guo
- State Key Laboratory of Chemical Oncogenomics, Peking University Shenzhen Graduate School, Shenzhen 518055, People’s Republic of China
| | - Jiean Chen
- Shenzhen Bay Laboratory, Shenzhen 518055, People’s Republic of China
| | - Yong Huang
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, People’s Republic of China
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17
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Zhao C, Blaszczyk SA, Wang J. Asymmetric reactions of N-heterocyclic carbene (NHC)-based chiral acyl azoliums and azolium enolates. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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18
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Yang X, Xie Y, Xu J, Ren S, Mondal B, Zhou L, Tian W, Zhang X, Hao L, Jin Z, Chi YR. Carbene‐Catalyzed Activation of Remote Nitrogen Atoms of (Benz)imidazole‐Derived Aldimines for Enantioselective Synthesis of Heterocycles. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xing Yang
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Yongtao Xie
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering Shenzhen University Shenzhen 518060 China
| | - Jun Xu
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
- Guizhou University of Traditional Chinese Medicine Guiyang 550025 China
| | - Shichao Ren
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Bivas Mondal
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Liejin Zhou
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Weiyi Tian
- Guizhou University of Traditional Chinese Medicine Guiyang 550025 China
| | - Xinglong Zhang
- Institute of High Performance Computing A*STAR (Agency for Science, Technology and Research) Singapore 138632 Singapore
| | - Lin Hao
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 China
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19
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Yang X, Xie Y, Xu J, Ren S, Mondal B, Zhou L, Tian W, Zhang X, Hao L, Jin Z, Chi YR. Carbene‐Catalyzed Activation of Remote Nitrogen Atoms of (Benz)imidazole‐Derived Aldimines for Enantioselective Synthesis of Heterocycles. Angew Chem Int Ed Engl 2021; 60:7906-7912. [DOI: 10.1002/anie.202016506] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Xing Yang
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Yongtao Xie
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
- International Joint Research Center for Molecular Science College of Chemistry and Environmental Engineering Shenzhen University Shenzhen 518060 China
| | - Jun Xu
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
- Guizhou University of Traditional Chinese Medicine Guiyang 550025 China
| | - Shichao Ren
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Bivas Mondal
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Liejin Zhou
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Weiyi Tian
- Guizhou University of Traditional Chinese Medicine Guiyang 550025 China
| | - Xinglong Zhang
- Institute of High Performance Computing A*STAR (Agency for Science, Technology and Research) Singapore 138632 Singapore
| | - Lin Hao
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Division of Chemistry & Mathematical Science School of Physical & Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education Guizhou University Huaxi District Guiyang 550025 China
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20
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Zhang T, Chen Y, Gao Z. Cu(OTf) 2 Catalyzed Conjugate Addition of Mercaptans to Enones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202012022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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21
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Begum Z, Sannabe H, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Tokiwa S, Takeshita M, Nakano H. Simple primary β-amino alcohols as organocatalysts for the asymmetric Michael addition of β-keto esters to nitroalkenes. RSC Adv 2020; 11:203-209. [PMID: 35423042 PMCID: PMC8690173 DOI: 10.1039/d0ra09041g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 12/03/2020] [Indexed: 11/21/2022] Open
Abstract
Simple primary β-amino alcohols act as an efficient organocatalysts in the asymmetric Michael addition of β-keto esters with nitroalkenes affording highly pure chiral Michael adducts. Also, both enantiomers of the adducts were obtained, depending on the specific catalyst used and reaction temperature.
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Affiliation(s)
- Zubeda Begum
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| | - Haruka Sannabe
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| | - Chigusa Seki
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| | - Yuko Okuyama
- Tohoku Medical and Pharmaceutical University 4-4-1 Komatsushima, Aoba-Ku Sendai 981-8558 Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules, Graduate School of Sciences, Tohoku University 6-3 Aoba, Aramaki, Aoba-Ku Sendai 980-8578 Japan
| | - Koji Uwai
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
| | - Michio Tokiwa
- Tokiwakai Group 62 Numajiri Tsuduri-Chou Uchigo Iwaki 973-8053 Japan
| | - Suguru Tokiwa
- Tokiwakai Group 62 Numajiri Tsuduri-Chou Uchigo Iwaki 973-8053 Japan
| | | | - Hiroto Nakano
- Division of Sustainable and Environmental Engineering, Graduate School of Engineering, Muroran Institute of Technology 27-1 Mizumoto-cho Muroran 050-8585
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22
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An Z, Liu Y, Sun Y, Yan R. TFA-Catalyzed [3+2] Spiroannulation of Cyclobutanols: A Route to Spiro[cyclobuta[a]indene-7,1'-cyclobutane] Skeletons. Chem Asian J 2020; 15:3812-3815. [PMID: 32997399 DOI: 10.1002/asia.202001048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/27/2020] [Indexed: 12/15/2022]
Abstract
A straightforward method for the synthesis of spiro[cyclobuta[a]indene-7,1'-cyclobutane] derivatives from cyclobutanols has been developed via one-pot [3+2] spiroannulation. A series of new spiro[cyclobuta[a]indene-7,1'-cyclobutane] derivatives are facilely synthesized in good yields under mild reaction conditions.
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Affiliation(s)
- Zhenyu An
- State Key Laboratory of Applied Organic Chemistry, Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
| | - Yafeng Liu
- Chemical Science and Engineering College, North Minzu University, Yinchuan, 750000, P. R. China
| | - Yanwei Sun
- Research Institute of Exploration & Development, Tuha Oilfield Company, Xinjiang, 830000, P. R. China
| | - Rulong Yan
- State Key Laboratory of Applied Organic Chemistry, Key laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, P. R. China
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23
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Organocatalytic enantioselective conjugate addition of nitroalkanes to trifluoromethylated 3-methyleneoxindoles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152443] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Peng X, Xu J, Li T, Chi YR, Jin Z. Chemo-selective cross reaction of two enals via carbene-catalyzed dual activation. Chem Sci 2020; 11:12533-12539. [PMID: 34123233 PMCID: PMC8162827 DOI: 10.1039/d0sc03297b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
A dual catalytic chemo-selective cross-coupling reaction of two enals is developed. One enal (without α-substitution) is activated by an NHC catalyst to form an acylazolium enolate intermediate that undergoes Michael-type addition to another enal molecule bearing an alkynyl substituent. Mechanistic studies indicate that non-covalent interactions between the alkynyl enal and the NHC·HX catalyst play important roles in substrate activation and enantioselectivity control. Many of the possible side reactions are not observed. Our reaction provides highly chemo- and diastereo-selective access to chiral lactones containing functionalizable 1,3-enyn units with excellent enantioselectivities (95 to >99% ee). An NHC-catalyzed dual activation of two different enals is disclosed with both covalent and non-covalent activation pathways involved.![]()
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Affiliation(s)
- Xiaolin Peng
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Jun Xu
- School of Pharmacy, Guiyang College of Traditional Chinese Medicine Huaxi District Guiyang 550025 China.,Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University Singapore 637371 Singapore
| | - Tingting Li
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University Huaxi District Guiyang 550025 China
| | - Yonggui Robin Chi
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University Huaxi District Guiyang 550025 China.,Division of Chemistry & Biological Chemistry, School of Physical & Mathematical Sciences, Nanyang Technological University Singapore 637371 Singapore
| | - Zhichao Jin
- Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering Ministry of Education, Guizhou University Huaxi District Guiyang 550025 China
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25
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Ye X, Pan Y, Chen Y, Yang X. Enantioselective Construction of Sulfur‐Containing Tetrasubstituted Stereocenters via Asymmetric Functionalizations of α‐Sulfanyl Cyclic Ketones. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000520] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Xueqian Ye
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
- University of Chinese Academy of Sciences Beijing 100049 People's Republic of China
| | - Yongkai Pan
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
| | - Yunrong Chen
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
| | - Xiaoyu Yang
- School of Physical Science and TechnologyShanghaiTech University Shanghai 201210 People's Republic of China
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26
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Formánek B, Tauchman J, Císařová I, Veselý J. Access to Spirocyclic Benzothiophenones with Multiple Stereocenters via an Organocatalytic Cascade Reaction. J Org Chem 2020; 85:8510-8521. [DOI: 10.1021/acs.joc.0c00882] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bedřich Formánek
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Jiří Tauchman
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
| | - Jan Veselý
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
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27
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Wang Y, Wei D. Mechanistic investigation of N-heterocyclic carbene and Na2CO3 cooperatively catalyzed C(sp3)-F bond activation reaction of fluoroenal. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110944] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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28
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Wang Y, Cao Z, Li Q, Lin G, Zhou J, Tian P. Activating Pronucleophiles with High p
K
a
Values: Chiral Organo‐Superbases. Angew Chem Int Ed Engl 2020; 59:8004-8014. [DOI: 10.1002/anie.201913484] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Indexed: 01/02/2023]
Affiliation(s)
- Yu‐Hui Wang
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Zhong‐Yan Cao
- College of Chemical EngineeringZhejiang University of Technology 18 Chaowang Road Hangzhou 310014 China
| | - Qing‐Hua Li
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Guo‐Qiang Lin
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Jian Zhou
- School of Chemistry and Molecular EngineeringEast China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ping Tian
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
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29
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Wang Y, Cao Z, Li Q, Lin G, Zhou J, Tian P. Activating Pronucleophiles with High p
K
a
Values: Chiral Organo‐Superbases. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913484] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Yu‐Hui Wang
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Zhong‐Yan Cao
- College of Chemical EngineeringZhejiang University of Technology 18 Chaowang Road Hangzhou 310014 China
| | - Qing‐Hua Li
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Guo‐Qiang Lin
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
| | - Jian Zhou
- School of Chemistry and Molecular EngineeringEast China Normal University 3663N Zhongshan Road Shanghai 200062 China
| | - Ping Tian
- The Research Center of Chiral DrugsInnovation Research Institute of Traditional Chinese MedicineShanghai University of Traditional Chinese Medicine 1200 Cailun Road Shanghai 201203 China
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30
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Santra S, Maji U, Guin J. Enantioselective α-Amination of Acyclic 1,3-Dicarbonyls Catalyzed by N-Heterocyclic Carbene. Org Lett 2020; 22:468-473. [PMID: 31913633 DOI: 10.1021/acs.orglett.9b04232] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Herein, we describe a method for the catalytic enantioselective α-amination of α-substituted acyclic 1,3-ketoamides and 1,3-amidoesters that affords the products possessing N-substituted quaternary stereocenters with a chiral N-heterocyclic carbene (NHC). The reaction is based on the utilization of an intrinsic Brønsted base characteristic of NHC that enables the catalytic formation of a chiral ion pair comprising the enolate and the azolium ion. A series of challenging open-chain α-substituted 1,3-dicarbonyls are aminated via this method with ee's of ≤99%.
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Affiliation(s)
- Surojit Santra
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road , Jadavpur , Kolkata 700032 , India
| | - Ujjwal Maji
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road , Jadavpur , Kolkata 700032 , India
| | - Joyram Guin
- School of Chemical Sciences , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road , Jadavpur , Kolkata 700032 , India
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31
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Li X, Wu X, Tang L, Xie F, Zhang W. Benzylamine as Hydrogen Transfer Agent: Cobalt‐Catalyzed Chemoselective C=C Bond Reduction of β‐Trifluoromethylated α,β‐Unsaturated Ketones via 1,5‐Hydrogen Transfer. Chem Asian J 2019; 14:3835-3839. [DOI: 10.1002/asia.201901210] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 09/17/2019] [Indexed: 11/06/2022]
Affiliation(s)
- Xuewei Li
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Xiaoting Wu
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Liang Tang
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Fang Xie
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral DrugsSchool of Chemistry and Chemical EngineeringShanghai Jiao Tong University 800 Dongchuan Road Shanghai 200240 China
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32
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Lu S, Ong JY, Yang H, Poh SB, Liew X, Seow CSD, Wong MW, Zhao Y. Diastereo- and Atroposelective Synthesis of Bridged Biaryls Bearing an Eight-Membered Lactone through an Organocatalytic Cascade. J Am Chem Soc 2019; 141:17062-17067. [DOI: 10.1021/jacs.9b08510] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Shenci Lu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Republic of Singapore
- Shaanxi Key Laboratory of Flexible Electronics, Northwestern Polytechnical University, Xi’an 710072, China
| | - Jun-Yang Ong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Republic of Singapore
- Graduate School for Integrative Sciences Engineering (NGS), National University of Singapore, 28 Medical Drive 3, 117456 Republic of Singapore
| | - Hui Yang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Republic of Singapore
| | - Si Bei Poh
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Republic of Singapore
| | - Xi Liew
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Republic of Singapore
| | - Chwee San Deborah Seow
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Republic of Singapore
| | - Ming Wah Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Republic of Singapore
| | - Yu Zhao
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543 Republic of Singapore
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China
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33
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Chu X, Ge D, Wang M, Rao W, Loh T, Shen Z. Chemo‐ and Regioselective Ring Construction Driven by Visible‐Light Photoredox Catalysis: an Access to Fluoroalkylated Oxazolidines Featuring an All‐Substituted Carbon Stereocenter. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900585] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Xue‐Qiang Chu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
| | - Danhua Ge
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
| | - Mao‐Lin Wang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
| | - Weidong Rao
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Teck‐Peng Loh
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences Nanyang Technological University Singapore 637371 Singapore
| | - Zhi‐Liang Shen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials Nanjing Tech University Nanjing 211816 People's Republic of China
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34
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An X, Xiao J. Fluorinated Alcohols: Magic Reaction Medium and Promoters for Organic Synthesis. CHEM REC 2019; 20:142-161. [DOI: 10.1002/tcr.201900020] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 06/07/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Xiao‐De An
- College of Chemistry and Pharmaceutical SciencesQingdao Agricultural University
| | - Jian Xiao
- College of Chemistry and Pharmaceutical SciencesQingdao Agricultural University
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35
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Togashi R, Chennapuram M, Seki C, Okuyama Y, Kwon E, Uwai K, Tokiwa M, Takeshita M, Nakano H. 2-Azanorbornane-Based Amino Alcohol Organocatalysts for Asymmetric Michael Reaction of β-Keto Esters with Nitroolefins. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Rei Togashi
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Madhu Chennapuram
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Chigusa Seki
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Yuko Okuyama
- Graduate School of Engineering; Tohoku Medicinal and Pharmaceutical University; 4-4-1 Komatsushima, Aoba-ku 981-8585 Sendai Japan
| | - Eunsang Kwon
- Research and Analytical Center for Giant Molecules; Graduate School of Sciences; Tohoku University; 6-3 Aoba, Aramaki, Aoba-ku 980-8578 Sendai Japan
| | - Koji Uwai
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
| | - Michio Tokiwa
- Graduate School of Sciences; Tokiwakai Group; 62 Numajiri Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | - Mitsuhiro Takeshita
- Graduate School of Sciences; Tokiwakai Group; 62 Numajiri Tsuduri-chou Uchigo 973-8053 Iwaki Japan
| | - Hiroto Nakano
- Department of Bioengineering; Graduate School of Engineering; Muroran Institute of Technology.; 27-1 Mizumoto 050-8585 Muroran Japan
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36
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Feng ZN, Luo JY, Zhang Y, Du GF, He L. N-Heterocyclic carbene-catalyzed diastereoselective synthesis of sulfenylated indanes via sulfa-Michael-Michael (aldol) cascade reactions. Org Biomol Chem 2019; 17:4700-4704. [PMID: 31020285 DOI: 10.1039/c9ob00210c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
N-Heterocyclic carbene (NHC)-catalyzed diastereoselective synthesis of multisubstituted sulfenylated indanes has been developed. In the presence of 1 mol% NHC, various thiols underwent the sulfa-Michael-Michael cascade reaction with benzenedi(enones) efficiently to form the carbon-sulfur bond and construct sulfenylated indanes in good to excellent yields with high diastereoselectivity. In addition, the NHC-catalyzed sulfa-Michael-aldol cascade reaction between o-formyl chalcone and thiols has also been demonstrated to afford sulfenylated indanes with a free hydroxyl group in moderate yields and good diastereoselectivity.
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Affiliation(s)
- Ze-Nan Feng
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur Autonomous Region, 832000, People's Republic of China.
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37
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Hu WF, Zhao JQ, Chen XZ, Zhou MQ, Zhang XM, Xu XY, Yuan WC. Organocatalytic enantioselective sulfa-Michael addition of thiocarboxylic acids to β-trifluoromethyl-α,β-unsaturated ketones for the construction of stereogenic carbon center bearing a sulfur atom and a trifluoromethyl group. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.02.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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39
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Huang X, Li J, Li X, Wang J, Peng Y, Song G. Catalyst-free chemoselective α-sulfenylation/β-thiolation for α,β-unsaturated carbonyl compounds. RSC Adv 2019; 9:26419-26424. [PMID: 35531013 PMCID: PMC9070314 DOI: 10.1039/c9ra05708k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 08/06/2019] [Indexed: 11/21/2022] Open
Abstract
A novel, efficient, catalyst-free and product-controllable strategy has been developed for the chemoselective α-sulfenylation/β-thiolation of α,β-unsaturated carbonyl compounds. An aromatic sulfur group could be chemoselectively introduced at α- or β-position of carbonyls with different sulfur reagents under slightly changed reaction conditions. A series of desired products were obtained in moderate to excellent yields. Mechanistic studies revealed that B2pin2 played the key role in activating the transformation towards the β-thiolation of α,β-unsaturated carbonyl compounds. This transition-metal-catalyst-free method provides a convenient and efficient tool for the highly chemoselective preparation of α-thiolation or β-sulfenylation products of α,β-unsaturated carbonyl compounds. This catalyst-free method provides a useful and efficient tool for the highly chemoselective preparation of α-thiolation or β-sulfenylation products of α,β-unsaturated carbonyl compounds.![]()
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Affiliation(s)
- Xi Huang
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
| | - Juan Li
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
| | - Xiang Li
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
| | - Jiayi Wang
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
| | - Yanqing Peng
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
| | - Gonghua Song
- Shanghai Key Laboratory of Chemical Biology
- School of Pharmacy
- East China University of Science and Technology
- Shanghai
- PR China
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40
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Li S, Yao Y, Tang Z, Sun B, Yu C, Li T, Yao C. An enantioselective assembly of naphthopyran via NHC-catalyzed [3 + 3] annulation of bromoenal with β-tetralone. Org Biomol Chem 2019; 17:268-274. [DOI: 10.1039/c8ob02192a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An asymmetric assembly of naphthopyran was realized via the N-heterocyclic carbene (NHC)-catalyzed formal [3 + 3] annulation of bromoenal and β-tetralone. The key advantages of this protocol include ready availability of starting materials, mild reaction conditions, good yields.
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Affiliation(s)
- Sha Li
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Yibiao Yao
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Ziwei Tang
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Baomin Sun
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Chenxia Yu
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Tuanjie Li
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
| | - Changsheng Yao
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P. R. China
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41
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Wang Z, Zhang H, Qian H, Wang Y, Yu C, Li T, Yao C. An NHC-catalyzed, stereoselective α-functionalization of α,β-unsaturated carboxylic acids through in situ activation. Org Biomol Chem 2019; 17:4564-4571. [DOI: 10.1039/c8ob03206h] [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 N-heterocyclic carbene (NHC)-catalyzed diastereo- and enantioselective α-functionalization of α,β-unsaturated carboxylic acids bearing γ-H to construct dihydrocoumarin was realized through in situ activation.
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Affiliation(s)
- Zhanlin Wang
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Huiqing Zhang
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Huimin Qian
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Yuanfeng Wang
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Chenxia Yu
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Tuanjie Li
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
| | - Changsheng Yao
- School of Chemistry and Materials Science
- Jiangsu Key Lab of Green Synthetic Chemistry for Functional Materials
- Jiangsu Normal University
- Xuzhou
- P R China
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42
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Mudithanapelli C, Vasam CS, Vadde R, Kim MH. Highly Efficient and Practical N-Heterocyclic Carbene Organocatalyzed Chemoselective N 1/C 3-Functionalization of Isatins with Green Chemistry Principles. ACS OMEGA 2018; 3:17646-17655. [PMID: 31458364 PMCID: PMC6643579 DOI: 10.1021/acsomega.8b02361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Accepted: 12/04/2018] [Indexed: 06/10/2023]
Abstract
Ecofriendly N-heterocyclic carbene (NHC) organocatalysis can control the N1-functionalization (aza-Michael addition) and C3-functionalization (Morita-Baylis-Hillman reaction, MBH) of isatins in the absence of (1) a protecting group, (2) a stoichiometric reagent, and (3) heat energy. The challengeable N1-functionalization of N-unsubstituted isatins into N-substituted (NS) isatins was realized through 10 mol % NHC and 10 mol % 1,8-diazabicyclo[5.4.0]undec-7-ene catalysts within 10 min with up to 98% isolation yield. The subsequent MBH adducts of as-synthesized NS-isatins (N1/C3-functionalization) was perfectly acquired in 10 mol % NHC and 10 mol % 1,4-diazabicyclo[2.2.2]octane catalysis within 30 min with superiority to C3/N1-functionalization (MBH/aza-Michael). For guiding the application to a versatile druggable isatin library, the NHC catalysis was compared with reported functionalization of isatins in view of green chemistry principles including solvent scoring of ACS GCI pharmaceutical roundtable, E-factor, atom economy, and so on.
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Affiliation(s)
- Chandrashekar Mudithanapelli
- Gachon
Institute of Pharmaceutical Science & Department of Pharmacy,
College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea
- Department
of Chemistry, Kakatiya University, Warangal 506009, India
| | - Chandra Sekhar Vasam
- Department
of Pharmaceutical Chemistry, Telangana University, Nizamabad 503322, India
| | - Ravinder Vadde
- Department
of Chemistry, Kakatiya University, Warangal 506009, India
| | - Mi-hyun Kim
- Gachon
Institute of Pharmaceutical Science & Department of Pharmacy,
College of Pharmacy, Gachon University, 191 Hambakmoeiro, Yeonsu-gu, Incheon 21936, Republic of Korea
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43
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Santra S, Porey A, Jana B, Guin J. N-Heterocyclic carbenes as chiral Brønsted base catalysts: a highly diastereo- and enantioselective 1,6-addition reaction. Chem Sci 2018; 9:6446-6450. [PMID: 30288232 PMCID: PMC6144034 DOI: 10.1039/c8sc02138d] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Accepted: 07/01/2018] [Indexed: 11/23/2022] Open
Abstract
Highly diastereo- and enantioselective 1,6-addition of 1,3-ketoamides to p-quinone methides (p-QMs) using chiral NHCs as Brønsted base catalysts is developed. The reaction is based on the utilization of a 1,3-ketoamide having acidic N-H that forms a chiral ion-pair consisting of the enolate and the azolium ion. Different β-ketoamides and functionalized p-QMs are applicable to the reaction. Synthetic application of the method is demonstrated via the preparation of highly enantioenriched β and γ-lactam derivatives.
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Affiliation(s)
- Surojit Santra
- Department of Organic Chemistry , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road, Jadavpur , Kolkata-700032 , India .
| | - Arka Porey
- Department of Organic Chemistry , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road, Jadavpur , Kolkata-700032 , India .
| | - Barun Jana
- Department of Organic Chemistry , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road, Jadavpur , Kolkata-700032 , India .
| | - Joyram Guin
- Department of Organic Chemistry , Indian Association for the Cultivation of Science , 2A & 2B Raja S. C. Mullick Road, Jadavpur , Kolkata-700032 , India .
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44
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Cong ZS, Zhang Y, Du GF, Gu CZ, He L. N-heterocyclic carbene-catalyzed regio- and stereoselective hydrothiolation reaction of alkynes. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1468910] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Zi-Song Cong
- Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur, Autonomous Region, People’s Republic of China
| | - Yang Zhang
- Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur, Autonomous Region, People’s Republic of China
| | - Guang-Fen Du
- Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur, Autonomous Region, People’s Republic of China
| | - Cheng-Zhi Gu
- Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur, Autonomous Region, People’s Republic of China
| | - Lin He
- Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Xinjiang Uygur, Autonomous Region, People’s Republic of China
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45
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Gu Z, Xie JJ, Jiang GF, Zhou YG. Catalytic Asymmetric Conjugate Addition of Tritylthiol to Azadienes with a Bifunctional Organocatalyst. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800299] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zheng Gu
- College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Jiao-Jiao Xie
- College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Guo-Fang Jiang
- College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Yong-Gui Zhou
- Dalian Institute of Chemical Physics; Chinese Academy of Sciences; Dalian 116023 P.R. China
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46
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Liu B, Zhang ZM, Xu B, Xu S, Wu HH, Zhang J. Cu(I)-Ming-phos Catalyzed Enantioselective [3+2] Cycloadditions of Glycine ketimines to β
-Trifluoromethyl Enones. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800046] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Bing Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Bing Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Shan Xu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Hai-Hong Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering; East China Normal University; 3663 N. Zhongshan Road Shanghai 200062 People's Republic of China
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47
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Hasılcıoğulları D, Tanyeli C. Enantioselective sulfa-Michael addition reaction of methyl thioglycolate to chalcones derivatives with sterically encumbered quinine squaramide organocatalyst. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.02.068] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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48
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N-Heterocyclic Carbene-Catalyzed Double Michael Addition: Stereoselective Synthesis of Spirofluorenes and Multisubstituted Indanes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201701269] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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49
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Santra S, Porey A, Guin J. 1,6-Conjugate Addition of 1,3-Dicarbonyl Compounds topara-Quinone Methides Enabled by Noncovalent N-Heterocyclic Carbene Catalysis. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700656] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Surojit Santra
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur, Kolkata 700032 India
| | - Arka Porey
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur, Kolkata 700032 India
| | - Joyram Guin
- Department of Organic Chemistry; Indian Association for the Cultivation of Science; 2A & 2B Raja S. C. Mullick Road Jadavpur, Kolkata 700032 India
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50
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Meninno S, Naddeo S, Varricchio L, Capobianco A, Lattanzi A. Stereoselective organocatalytic sulfa-Michael reactions of aryl substituted α,β-unsaturated N-acyl pyrazoles. Org Chem Front 2018. [DOI: 10.1039/c8qo00357b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of functionalised sulfides has been obtained in good to high stereoselectivity via sulfa-Michael reaction of α,β-unsaturated N-acyl pyrazoles with thiols or thioacetic acid using readily available organocatalysts and working under mild conditions.
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Affiliation(s)
- Sara Meninno
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
| | - Simone Naddeo
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
| | - Luca Varricchio
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
| | - Amedeo Capobianco
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
| | - Alessandra Lattanzi
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Universita’ di Salerno
- Fisciano
- Italy
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