1
|
Chetty LC, Kruger HG, Arvidsson PI, Naicker T, Govender T. Investigating the efficacy of green solvents and solvent-free conditions in hydrogen-bonding mediated organocatalyzed model reactions. RSC Adv 2024; 14:7992-7998. [PMID: 38454950 PMCID: PMC10918449 DOI: 10.1039/d4ra00679h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 02/25/2024] [Indexed: 03/09/2024] Open
Abstract
In this study, we have delved into various reactions conducted using green solvents or under solvent-free conditions, employing hydrogen bonding organocatalysis to advance more sustainable practices in chemical synthesis. The outcomes suggest that cyclopentyl methyl ether could potentially replace non-polar organic solvents such as hexane and toluene with comparable enantioselectivity and yields. The non-polar nature of liquefied or supercritical CO2 restricts its application to reactions that require non-polar solvents. Furthermore, pursuing solvent-free conditions, even without liquid substrates, might result in similar conversion rates with reduced catalyst loading. These findings highlight the potential of exploring solvent-free conditions when enantioselectivity is not of concern. Based on the results, solvent-free conditions and bio-based solvents can serve as viable alternatives to conventional organic solvents without compromising performance. This is expected to influence the way chemists approach reaction optimisation within method development in the field, fostering a broader adoption of environmentally friendly approaches.
Collapse
Affiliation(s)
- Lloyd C Chetty
- Catalysis and Peptide Research Unit, University of KwaZulu Natal Durban 4001 South Africa
| | - Hendrik G Kruger
- Catalysis and Peptide Research Unit, University of KwaZulu Natal Durban 4001 South Africa
| | - Per I Arvidsson
- Catalysis and Peptide Research Unit, University of KwaZulu Natal Durban 4001 South Africa
- Science for Life Laboratory, Drug Discovery & Development Platform & Division of Translational Medicine and Chemical Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet Stockholm Sweden
| | - Tricia Naicker
- Catalysis and Peptide Research Unit, University of KwaZulu Natal Durban 4001 South Africa
| | - Thavendran Govender
- Department of Chemistry, University of Zululand Private Bag X1001 KwaDlangezwa 3886 South Africa
| |
Collapse
|
2
|
Shi M, Zhang Q, Gao J, Mi X, Luo S. Catalytic Asymmetric α‐Alkylsulfenylation with a Disulfide Reagent. Angew Chem Int Ed Engl 2022; 61:e202209044. [DOI: 10.1002/anie.202209044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Indexed: 11/11/2022]
Affiliation(s)
- Mingying Shi
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Qi Zhang
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| | - Jiali Gao
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Xueling Mi
- College of Chemistry Beijing Normal University Beijing 100875 China
| | - Sanzhong Luo
- Center of Basic Molecular Science (CBMS) Department of Chemistry Tsinghua University Beijing 100084 China
| |
Collapse
|
3
|
Tan Q, Chen Q, Zhu Z, Liu X. Asymmetric organocatalytic sulfenylation for the construction of a diheteroatom-bearing tetrasubstituted carbon centre. Chem Commun (Camb) 2022; 58:9686-9689. [PMID: 35959638 DOI: 10.1039/d2cc03443c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catalytic enantioselective sulfenylation to construct diheteroatom-bearing carbon centres was achieved by employing chiral guanidine organocatalysts. This protocol provided a facile route towards the synthesis of α-fluoro-α-sulfenyl-β-ketoamides, azlactone adducts and α-sulfur-substituted amino acid derivatives in high yields with good to excellent enantioselectivities. A possible working mode was proposed to elucidate the chiral control of the process.
Collapse
Affiliation(s)
- Qingfa Tan
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Qianping Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Zitong Zhu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
| |
Collapse
|
4
|
Shi M, Zhang Q, Gao J, Mi X, Luo S. Catalytic Asymmetric α‐Alkylsulfenylation with a Disulfide Reagent. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mingying Shi
- Beijing Normal University Department of Chemistry CHINA
| | - Qi Zhang
- Tsinghua University CBMS, Department of Chemistry CHINA
| | - Jiali Gao
- Beijing Normal University Department of Chemistry CHINA
| | - Xueling Mi
- Beijing Normal University Department of Chemistry CHINA
| | - Sanzhong Luo
- Tsinghua University Department of Chemistry Tsinghua University 100084 Beijing CHINA
| |
Collapse
|
5
|
Chen Z, Lin H, Han J, Fang D, Wang M, Liao J. Enantioselective Copper-Catalyzed Electrophilic Sulfenylation of Cyclic Imino Esters. Org Lett 2021; 23:9146-9150. [PMID: 34787420 DOI: 10.1021/acs.orglett.1c03464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Herein we report an enantioselective sulfenylation of cyclic imino esters with the efficient and versatile sulfenylation reagent S-alkyl 4-methylbenzenesulfonothioates. By utilizing the Cu/tBu-Phosferrox catalytic system, we can assemble diverse S-alkyl groups into the cyclic imino esters under mild conditions in good yields and with excellent enantioselectivities. Remarkably, this method demonstrates a high tolerance of diverse functional groups and proves to be applicable in the late-stage functionalization of pharmaceuticals.
Collapse
Affiliation(s)
- Zhiwei Chen
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huaxin Lin
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Han
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Dongmei Fang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
| | - Min Wang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.,University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jian Liao
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.,University of Chinese Academy of Sciences, Beijing 100049, China.,College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| |
Collapse
|
6
|
Zhang L, Nagaraju S, Paplal B, Lin Y, Liu S. Sulfonium Salts Enable the Direct Sulfenylation of Activated C(
sp
3
)−H Bonds. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001569] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Liang Zhang
- School of Pharmaceutical Sciences Shandong Analysis and Test Center Qilu University of Technology (Shandong Academy of Sciences) Jinan 250014 P. R. China
| | - Sakkani Nagaraju
- School of Pharmaceutical Sciences Shandong Analysis and Test Center Qilu University of Technology (Shandong Academy of Sciences) Jinan 250014 P. R. China
| | - Banoth Paplal
- School of Pharmaceutical Sciences Shandong Analysis and Test Center Qilu University of Technology (Shandong Academy of Sciences) Jinan 250014 P. R. China
| | - Yunliang Lin
- School of Pharmaceutical Sciences Shandong Analysis and Test Center Qilu University of Technology (Shandong Academy of Sciences) Jinan 250014 P. R. China
| | - Shuhua Liu
- School of Pharmaceutical Sciences Shandong Analysis and Test Center Qilu University of Technology (Shandong Academy of Sciences) Jinan 250014 P. R. China
| |
Collapse
|
7
|
Margalef J, Samec JSM. Assessing Methodologies to Synthesize α-Sulfenylated Carbonyl Compounds by Green Chemistry Metrics. CHEMSUSCHEM 2021; 14:808-823. [PMID: 33180999 PMCID: PMC7894555 DOI: 10.1002/cssc.202002409] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/08/2020] [Indexed: 06/11/2023]
Abstract
α-Sulfenylated carbonyl compounds are important both as active pharmaceutical ingredients and as intermediates in organic synthesis. Owing to their relevance in synthetic organic chemistry, this Minireview focuses on assessing the most relevant synthetic procedures based on green chemistry metrics. The Minireview starts with the traditional routes and then focuses on more recently developed methodologies. These routes include sulfenylating reagents using organocatalysis, cross-dehydrogenative couplings using in situ halogenations to prevent reactive intermediates in high concentrations, oxidative couplings using terminal oxidants such as DDQ or TEMPO, and redox-neutral couplings using transition metal catalysis. These methodologies have been evaluated on the basis of atom economy, E factor, and the safety and toxicity of the transformations and the solvents used. Besides using green metrics to evaluate these novel methodologies, the synthetic utility is also assessed with regard to the availability of starting materials and the generality of the reactions. This Minireview aims to inspire researchers to apply green assessments to other methodologies and also for them to take measures to increase the greenness of their developed transformations.
Collapse
Affiliation(s)
- Jèssica Margalef
- Departament de Química Física i InorgànicaUniversitat Rovira i VirgiliC/ Marcel lí Domingo, 143007TarragonaSpain
| | - Joseph S. M. Samec
- Department of Organic ChemistryStockholm UniversitySvante Arrhenius väg 16 C106 91StockholmSweden
| |
Collapse
|
8
|
Shan H, Lu C, Zhao B, Yao Y. Asymmetric epoxidation of α,β-unsaturated ketones catalyzed by rare-earth metal amides RE[N(SiMe 3) 2] 3 with chiral TADDOL ligands. NEW J CHEM 2021. [DOI: 10.1039/d0nj05228k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The first application of rare-earth metal catalyst combined with TADDOLs in the asymmetric epoxidation of α,β-unsaturated ketones is disclosed.
Collapse
Affiliation(s)
- Haiwen Shan
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Chengrong Lu
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Bei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| | - Yingming Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province
- College of Chemistry
- Chemical Engineering and Materials Science
- Soochow University
- Suzhou 215123
| |
Collapse
|
9
|
Hazarika S, Barman P. Visible‐Light Cercosporin Catalyzed Sulfenylation of Electron‐Rich Compounds with Thiols under Transition‐Metal‐Free Conditions. ChemistrySelect 2020. [DOI: 10.1002/slct.202002512] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sukanya Hazarika
- Department of Chemistry National Institute of Technology Silchar Assam 788010 India
| | - Pranjit Barman
- Department of Chemistry National Institute of Technology Silchar Assam 788010 India
| |
Collapse
|
10
|
Zhang Y, Wong HN, Wu XY, Han J. Chiral iminophosphorane catalyzed asymmetric sulfenylation of 2-substituted alkylcyanoacetates. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
11
|
Sun D, Yang S, Fang X. Asymmetric catalytic construction of fully substituted carbon stereocenters using acyclic α-branched β-ketocarbonyls: the “Methyl Rule” widely exists. Org Chem Front 2020. [DOI: 10.1039/d0qo00673d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review illustrates the recent advances in catalytic asymmetric α-functionalization of acyclic β-ketocarbonyls. A thorough survey of all these reactions indicates the existance of a general principle which is called the “Methyl Rule”.
Collapse
Affiliation(s)
- Deqian Sun
- State Key Laboratory of Structural Chemistry
- and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter (FJIRSM)
- University of Chinese Academy of Sciences
- Fuzhou 350100
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry
- and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter (FJIRSM)
- University of Chinese Academy of Sciences
- Fuzhou 350100
| | - Xinqiang Fang
- State Key Laboratory of Structural Chemistry
- and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology
- Fujian Institute of Research on the Structure of Matter (FJIRSM)
- University of Chinese Academy of Sciences
- Fuzhou 350100
| |
Collapse
|
12
|
Jung SH, Kim B, Park C, Kim J, Ha MW, Hong S, Park H. Enantioselective Synthesis of Chiral α‐Alkylthiomalonates via a Phase‐Transfer‐Catalyzed α‐Sulfenylation of α‐Alkylmalonates. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- So Hyun Jung
- Research Institute of Pharmaceutical Sciences and College of PharmacySeoul National University Seoul 151-742 Korea
| | - Byungsoo Kim
- Research Institute of Pharmaceutical Sciences and College of PharmacySeoul National University Seoul 151-742 Korea
| | - Cheonhyoung Park
- Research Institute of Pharmaceutical Sciences and College of PharmacySeoul National University Seoul 151-742 Korea
| | - Jeongseok Kim
- Research Institute of Pharmaceutical Sciences and College of PharmacySeoul National University Seoul 151-742 Korea
| | - Min Woo Ha
- Research Institute of Pharmaceutical Sciences and College of PharmacySeoul National University Seoul 151-742 Korea
| | - Suckchang Hong
- Research Institute of Pharmaceutical Sciences and College of PharmacySeoul National University Seoul 151-742 Korea
| | - Hyeung‐geun Park
- Research Institute of Pharmaceutical Sciences and College of PharmacySeoul National University Seoul 151-742 Korea
| |
Collapse
|
13
|
Zou JX, Jiang Y, Lei S, Yin GF, Hu XL, Zhao QY, Wang Z. Synthesis of α-arylthioacetones using TEMPO as the C 3 synthon via a reaction cascade of sequential oxidation, skeletal rearrangement and C-S bond formation. Org Biomol Chem 2019; 17:2341-2345. [PMID: 30758028 DOI: 10.1039/c9ob00018f] [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
Here, we present an unprecedented pathway to α-sulfenylated carbonyl compounds from commercially available thiols and universally employed TEMPO and its analogues, which act as C3 synthons through skeletal rearrangement under simple and metal-free conditions. Mechanism studies suggest that this reaction involves a consecutive radical oxidation and cation coupling process. TEMPO analogues and thiols serve as oxidants and reductive reagents, respectively, along the radical process, while in the coupling process, the former ones afford C3 synthons to couple with related sulfur sources.
Collapse
Affiliation(s)
- Jiao-Xia Zou
- School of Pharmacy, Lanzhou University, West Donggang Road. No. 199, Lanzhou 730000, China.
| | | | | | | | | | | | | |
Collapse
|
14
|
Jiang Y, Zou JX, Huang LT, Peng X, Deng JD, Zhu LQ, Yang YH, Feng YY, Zhang XY, Wang Z. KI-catalyzed C-S bond formation via an oxidation relay strategy: efficient access to various α-thio-β-dicarbonyl compounds. Org Biomol Chem 2019; 16:1641-1645. [PMID: 29461552 DOI: 10.1039/c8ob00080h] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient and practical methodology to obtain α-thio-β-dicarbonyl compounds was presented under alkaline conditions via potassium iodide (KI) catalysis; various symmetrical/unsymmetrical 1,3-dicarbonyl compounds were obtained under an aerobic atmosphere in moderate to excellent yields, with good functional group tolerance. Notably, a widely used anti-inflammatory drug butazodine could be modified with our protocol, even on a gram scale.
Collapse
Affiliation(s)
- Yi Jiang
- School of Pharmacy, Lanzhou University, West Donggang Road. No. 199, Lanzhou 730000, China.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
15
|
Zhao MX, Liu Q, Jiang RH, Shi M. DABCO/AgOAc cooperatively catalyzed α-sulfenylation of isocyanoacetates with N-(sulfanyl)succinimides. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.01.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
16
|
Niu ST, Liu H, Xu YJ, Lu CD. Diastereoselective α-Sulfenylation of N- tert-Butanesulfinyl Imidates. J Org Chem 2018; 83:10580-10588. [PMID: 30010340 DOI: 10.1021/acs.joc.8b01403] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A diastereoselective α-sulfenylation of chiral α-aryl/alkyl N- tert-butanesulfinyl imidates has been developed. Suitable sulfur electrophiles can be used as sulfenylating reagents to intercept aza-enolates generated from imidate deprotonation, giving α-thiofunctionalized imidates in good yields with high diastereocontrol. This protocol for C-S bond formation can efficiently synthesize enantioenriched 1,2-sulfanyl amine derivatives such as sulconazole.
Collapse
Affiliation(s)
- Sheng-Tong Niu
- Key Laboratory of Plant Resources and Chemistry of Arid Zones , Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China.,University of the Chinese Academy of Sciences , Beijing 100049 , China
| | - Hui Liu
- Key Laboratory of Plant Resources and Chemistry of Arid Zones , Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China
| | - Yan-Jun Xu
- Key Laboratory of Plant Resources and Chemistry of Arid Zones , Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China
| | - Chong-Dao Lu
- Key Laboratory of Plant Resources and Chemistry of Arid Zones , Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences , Urumqi 830011 , China
| |
Collapse
|
17
|
Song J, Cui J, Liang H, Liu Q, Dong Y, Liu H. Palladium-Catalyzed Direct Oxidative Esterification of Indoles at the C3 Position: A Novel Prospect for C(sp2
)−H Acyloxylation. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201700663] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jian Song
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Jie Cui
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Hanbing Liang
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Qing Liu
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Yunhui Dong
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| | - Hui Liu
- School of Chemistry and Chemical Engineering; Shandong University of Technology; 266 West Xincun Road Zibo 255049 P. R. China
| |
Collapse
|
18
|
Cui L, You Y, Mi X, Luo S. Catalytic enantioselective α-sulfenylation of β-ketocarbonyls by chiral primary amines. Org Chem Front 2018. [DOI: 10.1039/c8qo00496j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A simple chiral primary amine catalyst was identified to enable effective catalysis in direct α-sulfenylation of acyclic and cyclic β-ketocarbonyls with good yields and excellent enantioselectivities.
Collapse
Affiliation(s)
- Linfeng Cui
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Yang'en You
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- the Chinese Academy of Sciences
- Beijing 100190
- China
| | - Xueling Mi
- College of Chemistry
- Beijing Normal University
- Beijing 100875
- China
| | - Sanzhong Luo
- Key Laboratory for Molecular Recognition and Function
- Institute of Chemistry
- the Chinese Academy of Sciences
- Beijing 100190
- China
| |
Collapse
|
19
|
Cs2CO3-promoted carbon–sulfur bond construction via cross dehydrogenative coupling of thiophenols with acetonitrile. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.08.067] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
20
|
Schörgenhumer J, Tiffner M, Waser M. Chiral phase-transfer catalysis in the asymmetric α-heterofunctionalization of prochiral nucleophiles. Beilstein J Org Chem 2017; 13:1753-1769. [PMID: 28904619 PMCID: PMC5588627 DOI: 10.3762/bjoc.13.170] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 08/10/2017] [Indexed: 01/10/2023] Open
Abstract
Chiral phase-transfer catalysis is one of the major catalytic principles in asymmetric catalysis. A broad variety of different catalysts and their use for challenging applications have been reported over the last decades. Besides asymmetric C–C bond forming reactions the use of chiral phase-transfer catalysts for enantioselective α-heterofunctionalization reactions of prochiral nucleophiles became one of the most important field of application of this catalytic principle. Based on several highly spectacular recent reports, we thus wish to discuss some of the most important achievements in this field within the context of this review.
Collapse
Affiliation(s)
- Johannes Schörgenhumer
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Maximilian Tiffner
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| | - Mario Waser
- Institute of Organic Chemistry, Johannes Kepler University Linz, Altenbergerstrasse 69, 4040 Linz, Austria
| |
Collapse
|
21
|
Zhang X, Wu J, Liu Y, Xie Y, Liu C, Wang J, Zhao G. Facile synthetic approaches to 1-thiocyclopropanecarboxylates. PHOSPHORUS SULFUR 2017. [DOI: 10.1080/10426507.2017.1286492] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Xiansheng Zhang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, P. R. China
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, Tianjin, P. R. China
- Shandong Lukang Pharmaceutical Co., Ltd., Jining, P. R. China
| | - Jingwei Wu
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, Tianjin, P. R. China
| | - Yuqiang Liu
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, Tianjin, P. R. China
| | - Yafei Xie
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, Tianjin, P. R. China
| | - Changying Liu
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, Tianjin, P. R. China
| | - Jianwu Wang
- School of Chemistry and Chemical Engineering, Shandong University, Jinan, P. R. China
| | - Guilong Zhao
- Tianjin Key Laboratory of Molecular Design and Drug Discovery, Tianjin Institute of Pharmaceutical Research, Tianjin, P. R. China
| |
Collapse
|
22
|
Chen Q, Wang X, Wen C, Huang Y, Yan X, Zeng J. Cs2CO3-promoted cross-dehydrogenative coupling of thiophenols with active methylene compounds. RSC Adv 2017. [DOI: 10.1039/c7ra06904a] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
α-Sulfenylation of carbonyl compounds has been achieved via Cs2CO3-promoted aerobic cross-dehydrogenative coupling of thiophenols with active methylene compounds.
Collapse
Affiliation(s)
- Qian Chen
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
| | - Xiaofeng Wang
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Chunxiao Wen
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Yulin Huang
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Xinxing Yan
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| | - Jiekun Zeng
- School of Chemical Engineering and Light Industry
- Guangdong University of Technology
- Guangzhou 510006
- China
| |
Collapse
|
23
|
Yu JS, Huang HM, Ding PG, Hu XS, Zhou F, Zhou J. Catalytic Enantioselective Construction of Sulfur-Containing Tetrasubstituted Carbon Stereocenters. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01496] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jin-Sheng Yu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Hong-Mei Huang
- College
of Chemistry and Material Sciences, Sichuan Normal University, Chengdu, Sichuan 610066, P. R. China
| | - Pei-Gang Ding
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Xiao-Si Hu
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Feng Zhou
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
| | - Jian Zhou
- Shanghai
Key Laboratory of Green Chemistry and Chemical Processes, School of
Chemistry and Molecular Engineering, East China Normal University, Shanghai, 200062, P. R. China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
| |
Collapse
|
24
|
Devi N, Rahaman R, Sarma K, Barman P. Regioselective Mono- and Bis-Sulfenylation of Active Methylene Compounds. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501148] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
25
|
Shibatomi K, Kotozaki M, Sasaki N, Fujisawa I, Iwasa S. Williamson Ether Synthesis with Phenols at a Tertiary Stereogenic Carbon: Formal Enantioselective Phenoxylation of β‐Keto Esters. Chemistry 2015; 21:14095-8. [DOI: 10.1002/chem.201502042] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Indexed: 01/13/2023]
Affiliation(s)
- Kazutaka Shibatomi
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1‐1 Hibarigaoka, Tempaku‐cho, Toyohashi, 441‐8580 (Japan)
| | - Manato Kotozaki
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1‐1 Hibarigaoka, Tempaku‐cho, Toyohashi, 441‐8580 (Japan)
| | - Nozomi Sasaki
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1‐1 Hibarigaoka, Tempaku‐cho, Toyohashi, 441‐8580 (Japan)
| | - Ikuhide Fujisawa
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1‐1 Hibarigaoka, Tempaku‐cho, Toyohashi, 441‐8580 (Japan)
| | - Seiji Iwasa
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1‐1 Hibarigaoka, Tempaku‐cho, Toyohashi, 441‐8580 (Japan)
| |
Collapse
|
26
|
Liao K, Zhou F, Yu JS, Gao WM, Zhou J. Catalytic asymmetric sulfenylation to structurally diverse dithioketals. Chem Commun (Camb) 2015; 51:16255-8. [DOI: 10.1039/c5cc07010d] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
We report the first example of highly enantioselective synthesis of structurally diverse chiral dithioketals via asymmetric sulfenylation of various types of S-based nucleophiles, catalyzed by a cheap cinchona alkaloid derivative, dihydroquinine.
Collapse
Affiliation(s)
- Kui Liao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Feng Zhou
- Department of Chemistry
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Jin-Sheng Yu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Wei-Ming Gao
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| | - Jian Zhou
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes
- School of Chemistry and Molecular Engineering
- East China Normal University
- Shanghai 200062
- China
| |
Collapse
|
27
|
|
28
|
Denmark SE, Rossi S, Webster MP, Wang H. Catalytic, enantioselective sulfenylation of ketone-derived enoxysilanes. J Am Chem Soc 2014; 136:13016-28. [PMID: 25192220 PMCID: PMC4183607 DOI: 10.1021/ja506133z] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2014] [Indexed: 01/07/2023]
Abstract
A catalytic, enantioselective, Lewis base-catalyzed α-sulfenylation of silyl enol ethers has been developed. To avoid acidic hydrolysis of the silyl enol ether substrates, a sulfenylating agent that did not require additional Brønsted acid activation, namely N-phenylthiosaccharin, was developed. Three classes of Lewis bases-tertiary amines, sulfides, and selenophosphoramides-were identified as active catalysts for the α-sulfenylation reaction. Among a wide variety of chiral Lewis bases in all three classes, only chiral selenophosphoramides afforded α-phenylthio ketones in generally high yield and with good enantioselectivity. The selectivity of the reaction does not depend on the size of the silyl group but is highly sensitive to the double bond geometry and the bulk of the substituents on the double bond. The most selective substrates are those containing a geminal bulky substituent on the enoxysilane. Computational analysis revealed that the enantioselectivity arises from an intriguing interplay among sterically guided approach, distortion energy, and orbital interactions.
Collapse
Affiliation(s)
- Scott E. Denmark
- Roger Adams Laboratory, Department
of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| | | | | | - Hao Wang
- Roger Adams Laboratory, Department
of Chemistry, University of Illinois, Urbana, Illinois 61801, United States
| |
Collapse
|
29
|
Shirakawa S, Maruoka K. Asymmetric phase-transfer reactions under base-free neutral conditions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.05.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
30
|
Biswas S, Watile RA, Samec JSM. Tandem Pd/Au-Catalyzed Route to α-Sulfenylated Carbonyl Compounds from Terminal Propargylic Alcohols and Thiols. Chemistry 2014; 20:2159-63. [PMID: 24478141 DOI: 10.1002/chem.201304111] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2013] [Indexed: 01/30/2023]
Affiliation(s)
- Srijit Biswas
- Department of Chemistry, BMC, Uppsala University, Box 576, 75123, Uppsala (Sweden), Fax: (+46) 18 471 38 18
| | | | | |
Collapse
|
31
|
Qiao B, Liu X, Duan S, Yan L, Jiang Z. Highly Enantioselective Organocatalytic α-Sulfenylation of Azlactones. Org Lett 2014; 16:672-5. [PMID: 24432722 DOI: 10.1021/ol403303k] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Baokun Qiao
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| | - Xinfei Liu
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| | - Shaobo Duan
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| | - Lin Yan
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| | - Zhiyong Jiang
- Institute of Chemical Biology and ‡Key Laboratory of Natural Medicine
and Immuno-Engineering
of Henan Province, Henan University, Kaifeng, Henan, China, 475004
| |
Collapse
|
32
|
Affiliation(s)
- Seiji Shirakawa
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University
| |
Collapse
|
33
|
Biswas S, Dahlstrand C, Watile RA, Kalek M, Himo F, Samec JSM. Atom-efficient gold(I)-chloride-catalyzed synthesis of α-sulfenylated carbonyl compounds from propargylic alcohols and aryl thiols: substrate scope and experimental and theoretical mechanistic investigation. Chemistry 2013; 19:17939-50. [PMID: 24272980 PMCID: PMC4524420 DOI: 10.1002/chem.201302485] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 09/13/2013] [Indexed: 01/17/2023]
Abstract
Gold(I)-chloride-catalyzed synthesis of α-sulfenylated carbonyl compounds from propargylic alcohols and aryl thiols showed a wide substrate scope with respect to both propargylic alcohols and aryl thiols. Primary and secondary aromatic propargylic alcohols generated α-sulfenylated aldehydes and ketones in 60-97% yield. Secondary aliphatic propargylic alcohols generated α-sulfenylated ketones in yields of 47-71%. Different gold sources and ligand effects were studied, and it was shown that gold(I) chloride gave the highest product yields. Experimental and theoretical studies demonstrated that the reaction proceeds in two separate steps. A sulfenylated allylic alcohol, generated by initial regioselective attack of the aryl thiol on the triple bond of the propargylic alcohol, was isolated, evaluated, and found to be an intermediate in the reaction. Deuterium labeling experiments showed that the protons from the propargylic alcohol and aryl thiol were transferred to the 3-position, and that the hydride from the alcohol was transferred to the 2-position of the product. Density functional theory (DFT) calculations showed that the observed regioselectivity of the aryl thiol attack towards the 2-position of propargylic alcohol was determined by a low-energy, five-membered cyclic protodeauration transition state instead of the strained, four-membered cyclic transition state found for attack at the 3-position. Experimental data and DFT calculations supported that the second step of the reaction is initiated by protonation of the double bond of the sulfenylated allylic alcohol with a proton donor coordinated to gold(I) chloride. This in turn allows for a 1,2-hydride shift, generating the final product of the reaction.
Collapse
Affiliation(s)
- Srijit Biswas
- Department of Chemistry, BMC, Uppsala UniversityBox 576, 75123, Uppsala (Sweden), Fax: (+46) 018-471-3818 E-mail:
| | - Christian Dahlstrand
- Department of Chemistry, BMC, Uppsala UniversityBox 576, 75123, Uppsala (Sweden), Fax: (+46) 018-471-3818 E-mail:
| | - Rahul A Watile
- Department of Chemistry, BMC, Uppsala UniversityBox 576, 75123, Uppsala (Sweden), Fax: (+46) 018-471-3818 E-mail:
| | - Marcin Kalek
- Department of Organic Chemistry, Stockholm University10691, Stockholm, Sweden E-mail:
| | - Fahmi Himo
- Department of Organic Chemistry, Stockholm University10691, Stockholm, Sweden E-mail:
| | - Joseph S M Samec
- Department of Chemistry, BMC, Uppsala UniversityBox 576, 75123, Uppsala (Sweden), Fax: (+46) 018-471-3818 E-mail:
| |
Collapse
|
34
|
Shirakawa S, Tokuda T, Kasai A, Maruoka K. Design of Chiral Bifunctional Quaternary Phosphonium Bromide Catalysts Possessing an Amide Moiety. Org Lett 2013; 15:3350-3. [DOI: 10.1021/ol4013926] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Seiji Shirakawa
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Takashi Tokuda
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Atsuyuki Kasai
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| | - Keiji Maruoka
- Laboratory of Synthetic Organic Chemistry and Special Laboratory of Organocatalytic Chemistry, Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan
| |
Collapse
|
35
|
Cano I, Gómez-Bengoa E, Landa A, Maestro M, Mielgo A, Olaizola I, Oiarbide M, Palomo C. N-(Diazoacetyl)oxazolidin-2-thiones as Sulfur-Donor Reagents: Asymmetric Synthesis of Thiiranes from Aldehydes. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204771] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
36
|
Cano I, Gómez-Bengoa E, Landa A, Maestro M, Mielgo A, Olaizola I, Oiarbide M, Palomo C. N-(Diazoacetyl)oxazolidin-2-thiones as Sulfur-Donor Reagents: Asymmetric Synthesis of Thiiranes from Aldehydes. Angew Chem Int Ed Engl 2012; 51:10856-60. [DOI: 10.1002/anie.201204771] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2012] [Indexed: 11/12/2022]
|
37
|
Wang C, Yang X, Loh CCJ, Raabe G, Enders D. Organocatalytic, Asymmetric Synthesis of 3-SulfenylatedN-Boc-Protected Oxindoles. Chemistry 2012; 18:11531-5. [DOI: 10.1002/chem.201201262] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Indexed: 11/09/2022]
|
38
|
Shibatomi K, Soga Y, Narayama A, Fujisawa I, Iwasa S. Highly enantioselective chlorination of β-keto esters and subsequent S(N)2 displacement of tertiary chlorides: a flexible method for the construction of quaternary stereogenic centers. J Am Chem Soc 2012; 134:9836-9. [PMID: 22651700 DOI: 10.1021/ja304806j] [Citation(s) in RCA: 117] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Highly enantioselective chlorination of β-oxo esters and subsequent stereospecific substitution of tertiary chlorides are described. Enantioselective chlorination of β-keto esters and malonates was performed using a chiral Lewis acid catalyst prepared from Cu(OTf)(2) and the newly developed spirooxazoline ligand 2 to yield the desired α-chlorinated products with high enantioselectivity (up to 98% ee). Nucleophilic substitution of the resulting chlorides proceeded smoothly to afford a variety of chiral molecules such as α-amino, α-alkylthio, and α-fluoro esters, without loss of enantiopurity. The results of X-ray crystallographic analysis proved that Walden inversion occurs at the chlorinated tertiary carbon center. These results supported the fact that the substitution proceeds via an S(N)2 mechanism.
Collapse
Affiliation(s)
- Kazutaka Shibatomi
- Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi 441-8580, Japan.
| | | | | | | | | |
Collapse
|
39
|
Cai Y, Li J, Chen W, Xie M, Liu X, Lin L, Feng X. Catalytic Asymmetric Sulfenylation of Unprotected 3-Substituted Oxindoles. Org Lett 2012; 14:2726-9. [DOI: 10.1021/ol3009446] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yunfei Cai
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Jun Li
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Weiliang Chen
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Mingsheng Xie
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiaohua Liu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Lili Lin
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| | - Xiaoming Feng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P. R. China
| |
Collapse
|
40
|
|
41
|
Pradal A, Toullec PY, Michelet V. Gold-Catalyzed Oxidative Acyloxylation of Arenes. Org Lett 2011; 13:6086-9. [DOI: 10.1021/ol202577c] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Alexandre Pradal
- Chimie ParisTech, Laboratoire Charles Friedel, UMR 7223 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
| | - Patrick Y. Toullec
- Chimie ParisTech, Laboratoire Charles Friedel, UMR 7223 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
| | - Véronique Michelet
- Chimie ParisTech, Laboratoire Charles Friedel, UMR 7223 11 rue P. et M. Curie, 75231 Paris Cedex 05, France
| |
Collapse
|
42
|
Shibatomi K, Narayama A, Soga Y, Muto T, Iwasa S. Enantioselective gem-chlorofluorination of active methylene compounds using a chiral spiro oxazoline ligand. Org Lett 2011; 13:2944-7. [PMID: 21553911 DOI: 10.1021/ol201007e] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Highly enantioselective gem-chlorofluorination of active methylene compounds was carried out by using a copper(II) complex of a chiral spiro pyridyl monooxazoline ligand. This reaction yielded α-chloro-α-fluoro-β-keto esters and α-chloro-α-fluoro-β-keto phosphonates with up to 92% ee. The resulting dihalo β-keto ester was converted into various α-fluoro-α-heteroatom-substituted carbonyl compounds via nucleophilic substitution without loss of optical purity. A fully protected β-amino acid with a gem-chlorofluoromethylene function was also synthesized.
Collapse
Affiliation(s)
- Kazutaka Shibatomi
- Department of Environmental and Life Sciences, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Japan.
| | | | | | | | | |
Collapse
|
43
|
Salonen LM, Ellermann M, Diederich F. Aromatische Ringe in chemischer und biologischer Erkennung: Energien und Strukturen. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201007560] [Citation(s) in RCA: 245] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
44
|
Salonen LM, Ellermann M, Diederich F. Aromatic rings in chemical and biological recognition: energetics and structures. Angew Chem Int Ed Engl 2011; 50:4808-42. [PMID: 21538733 DOI: 10.1002/anie.201007560] [Citation(s) in RCA: 1165] [Impact Index Per Article: 89.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2010] [Indexed: 12/12/2022]
Abstract
This review describes a multidimensional treatment of molecular recognition phenomena involving aromatic rings in chemical and biological systems. It summarizes new results reported since the appearance of an earlier review in 2003 in host-guest chemistry, biological affinity assays and biostructural analysis, data base mining in the Cambridge Structural Database (CSD) and the Protein Data Bank (PDB), and advanced computational studies. Topics addressed are arene-arene, perfluoroarene-arene, S⋅⋅⋅aromatic, cation-π, and anion-π interactions, as well as hydrogen bonding to π systems. The generated knowledge benefits, in particular, structure-based hit-to-lead development and lead optimization both in the pharmaceutical and in the crop protection industry. It equally facilitates the development of new advanced materials and supramolecular systems, and should inspire further utilization of interactions with aromatic rings to control the stereochemical outcome of synthetic transformations.
Collapse
Affiliation(s)
- Laura M Salonen
- Laboratory of Organic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Hönggerberg, HCI, 8093 Zurich, Switzerland
| | | | | |
Collapse
|
45
|
Lin A, Fang L, Zhu X, Zhu C, Cheng Y. Organocatalytic Enantioselective Sulfenylation of β-Keto Phosphonates: A Convenient Approach to Construct Hetero- Quaternary Stereocenters. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000679] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
46
|
Smith AMR, Hii KK(M. Transition Metal Catalyzed Enantioselective α-Heterofunctionalization of Carbonyl Compounds. Chem Rev 2010; 111:1637-56. [DOI: 10.1021/cr100197z] [Citation(s) in RCA: 293] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Alexander M. R. Smith
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
| | - King Kuok (Mimi) Hii
- Department of Chemistry, Imperial College London, Exhibition Road, South Kensington, London SW7 2AZ, United Kingdom
| |
Collapse
|
47
|
Ishimaru T, Ogawa S, Tokunaga E, Nakamura S, Shibata N. Asymmetric synthesis of α-fluoro-α-sulfenyl-β-ketoesters using DBFOX–Ph/Ni(II) complex. J Fluor Chem 2009. [DOI: 10.1016/j.jfluchem.2009.08.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
48
|
Cahard D, Xu X, Couve-Bonnaire S, Pannecoucke X. Fluorine & chirality: how to create a nonracemic stereogenic carbon-fluorine centre? Chem Soc Rev 2009; 39:558-68. [PMID: 20111780 DOI: 10.1039/b909566g] [Citation(s) in RCA: 196] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantiopure organofluorine compounds are at the forefront of innovation in the field of fluorine chemistry. The significant progress in modern fluoroorganic chemistry parallels the tremendous achievements in organocatalysis and organometallic catalysis that have permitted the asymmetric synthesis of chiral chemicals featuring a fluorinated stereogenic carbon centre. This tutorial review provides an overview of the current state of the art in asymmetric construction of stereogenic carbon-fluorine centres, not only by direct fluorination, but also by asymmetric reaction of fluorinated substrates.
Collapse
Affiliation(s)
- Dominique Cahard
- UMR CNRS 6014 C.O.B.R.A., Université et INSA de Rouen, rue Tesnière, 76130 Mont Saint Aignan, France.
| | | | | | | |
Collapse
|
49
|
Fang L, Lin A, Hu H, Zhu C. Highly Enantioselective Sulfenylation of β-Ketoesters: H-Bond Acceptor Catalysis. Chemistry 2009; 15:7039-43. [DOI: 10.1002/chem.200901099] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|