1
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Zhang G, Feng B, Wang Y, Chen J, Ma X, Song Q. 1,1-Oxycarbonation of Terminal Alkynes via Sequential Borylation, 1,2-Migration, and Oxidation with Oxone. Org Lett 2024; 26:3109-3113. [PMID: 38552168 DOI: 10.1021/acs.orglett.4c00738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
Alkynes are readily available and multifunctional synthetic intermediates, but their 1,1-oxofunctionalization remains challenging. Herein, we report a 1,1-oxycarbonation of terminal alkynes to construct ketones through sequential borylation, 1,2-carbon migration, and oxidation with Oxone as the proton source and oxidant. The synthetic potential of this transformation is showcased by the broad functional groups, scale-up synthesis, and diverse product transformations.
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Affiliation(s)
- Guan Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Bofan Feng
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Yutong Wang
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Jinglong Chen
- College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Xingxing Ma
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
| | - Qiuling Song
- Key Laboratory of Molecule Synthesis and Function Discovery, Fujian Province University, College of Chemistry at Fuzhou University, Fuzhou, Fujian 350108, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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2
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Tang M, Wang Y, Huang S, Xie LG. Synthesis of Aryl Thioalkynes Enabled by Electrophilic Sulfenylation of Alkynes and the Following Elimination. J Org Chem 2023; 88:15466-15472. [PMID: 37861448 DOI: 10.1021/acs.joc.3c01592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
An unexpected deprotonative process of thiirenium ions is presented, which provides a new synthesis of aryl thioalkynes directly from terminal alkynes via the electrophilic activation of the carbon-carbon triple bonds. The conditions are well compatible with various functional-group-substituted aryl alkynes. The direct elimination from the thiirenium ion intermediate, or its tautomer, benzyl vinyl carbocation, is supported by control experiments and labeling reaction.
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Affiliation(s)
- Meizhong Tang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Ye Wang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lan-Gui Xie
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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3
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Kumar S, Ali Shah B. Exploring the Divergent Reactivity of Vinyl Radicals Emanating from Alkynes and Thiols via Photoredox Catalysis. Chem Asian J 2023; 18:e202300693. [PMID: 37656003 DOI: 10.1002/asia.202300693] [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: 08/12/2023] [Revised: 08/30/2023] [Accepted: 09/01/2023] [Indexed: 09/02/2023]
Abstract
Organic chemistry has seen a surge in visible-light-driven transformations, which offer unique reaction pathways and access to new synthetic possibilities. We aim to provide a comprehensive understanding of state-of-the-art photo-mediated alkyne functionalization, with a focus on the reactive behavior of vinyl radicals. This review outlines our contributions to the field, including developing new methods for forming carbon-carbon and carbon-heteroatom bonds.
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Affiliation(s)
- Sourav Kumar
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Natural Products & Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, India
| | - Bhahwal Ali Shah
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
- Natural Products & Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, India
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4
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Feng M, Tinelli R, Meyrelles R, González L, Maryasin B, Maulide N. Direct Synthesis of α-Amino Acid Derivatives by Hydrative Amination of Alkynes. Angew Chem Int Ed Engl 2023; 62:e202212399. [PMID: 36222199 PMCID: PMC10098499 DOI: 10.1002/anie.202212399] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Indexed: 11/07/2022]
Abstract
α-Amino acid derivatives are key components of the molecules of life. The synthesis of α-amino carbonyl/carboxyl compounds is a contemporary challenge in organic synthesis. Herein, we report a practical method for the preparation of α-amino acid derivatives via direct hydrative amination of activated alkynes under mild conditions, relying on sulfinamides as the nitrogen source. Computational studies suggest that the reaction is enabled by a new type of sulfonium [2,3]-sigmatropic rearrangement.
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Affiliation(s)
- Minghao Feng
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
| | - Roberto Tinelli
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria.,Vienna Doctoral School in Chemistry, University of Vienna, Währinger Strasse 42, 1090, Vienna, Austria
| | - Ricardo Meyrelles
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria.,Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria.,Vienna Doctoral School in Chemistry, University of Vienna, Währinger Strasse 42, 1090, Vienna, Austria
| | - Leticia González
- Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria
| | - Boris Maryasin
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria.,Institute of Theoretical Chemistry, University of Vienna, Währinger Strasse 17, 1090, Vienna, Austria
| | - Nuno Maulide
- Institute of Organic Chemistry, University of Vienna, Währinger Strasse 38, 1090, Vienna, Austria
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5
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Feng M, Tinelli R, Meyrelles R, González L, Maryasin B, Maulide N. Synthese von α-Aminosäurederivaten durch hydrative Aminierung von Alkinen. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 135:e202212399. [PMID: 38516564 PMCID: PMC10952632 DOI: 10.1002/ange.202212399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Indexed: 11/11/2022]
Abstract
Abstractα‐Aminosäurederivate sind Kernbestandteile jeglichen Lebens. Die Synthese von α‐Aminocarbonyl/carboxyl Verbindungen ist jedoch weiterhin eine Herausforderung für die organische Synthese. In dieser Arbeit berichten wir von einer praktischen Herstellungsmethode für α‐Aminosäurederivate durch direkte hydrative Aminierung von aktivierten Alkinen mit Sulfinamiden unter milden Bedingungen. Computergestützte Untersuchungen legen nahe, dass eine [2,3]‐sigmatrope Sulfoniumumlagerung der zentrale Schritt der Reaktion ist.
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Affiliation(s)
- Minghao Feng
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
| | - Roberto Tinelli
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
- Vienna Doctoral School in ChemistryUniversität WienWähringer Straße 421090WienÖsterreich
| | - Ricardo Meyrelles
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
- Institut für Theoretische ChemieUniversität WienWähringer Straße 171090WienÖsterreich
- Vienna Doctoral School in ChemistryUniversität WienWähringer Straße 421090WienÖsterreich
| | - Leticia González
- Institut für Theoretische ChemieUniversität WienWähringer Straße 171090WienÖsterreich
| | - Boris Maryasin
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
- Institut für Theoretische ChemieUniversität WienWähringer Straße 171090WienÖsterreich
| | - Nuno Maulide
- Institut für Organische ChemieUniversität WienWähringer Straße 381090WienÖsterreich
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6
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Tang M, Wei Y, Huang S, Xie LG. Regio- and Stereoselective Synthesis of β-Methylthio Vinyl Triflates. Org Lett 2022; 24:7026-7030. [PMID: 36129306 DOI: 10.1021/acs.orglett.2c02880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Vinyl triflates are commonly employed as electrophilic vinyl sources in complex synthesis. The triflation of enolates is commonly required for the preparation of vinyl triflates, generally under strongly basic conditions. Herein, the reaction between alkynes and dimethyl(methylthio)sulfonium trifluoromethanesulfonate is presented, which leads to the development of a facile synthesis of β-methylthio vinyl triflates in a chemo-, regio-, and stereoselective manner under neutral and extremely simple conditions.
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Affiliation(s)
- Meizhong Tang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yongjiao Wei
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Shenlin Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Lan-Gui Xie
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Key Laboratory of New Power Batteries, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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7
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Shi H, Wang X, Li X, Zhang B, Li X, Zhang J, Yang J, Du Y. Trifluoromethylthiolation/Selenolation and Lactonization of 2-Alkynylbenzoate: The Application of Benzyl Trifluoromethyl Sulfoxide/Selenium Sulfoxides as SCF 3/SeCF 3 Reagents. Org Lett 2022; 24:2214-2219. [DOI: 10.1021/acs.orglett.2c00563] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Haofeng Shi
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Xingzong Wang
- Hebei Key Laboratory of State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
- Nano-biotechnology Key Lab of Hebei Province, Yanshan University, Qinhuangdao 066004, China
| | - Xiaoxian Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Beibei Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Xuemin Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jingran Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
| | - Jingyue Yang
- Hebei Key Laboratory of State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004, China
- Nano-biotechnology Key Lab of Hebei Province, Yanshan University, Qinhuangdao 066004, China
| | - Yunfei Du
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, China
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8
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Mikhailov IE, Dushenko GA, Minkin VI. Pentacarboxycyclopentadienes in Organic Synthesis. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021110014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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9
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Guo W, Wang M, Han Z, Huang H, Sun J. Organocatalytic asymmetric synthesis of α-amino esters from sulfoxonium ylides. Chem Sci 2021; 12:11191-11196. [PMID: 34522316 PMCID: PMC8386753 DOI: 10.1039/d1sc02439f] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 06/28/2021] [Indexed: 12/14/2022] Open
Abstract
Described here is the first organocatalytic asymmetric N–H insertion reaction of α-carbonyl sulfoxonium ylides. Without a metal catalyst, this reaction represents an attractive complement to the well-established carbene insertion reactions. As a stable surrogate of diazocarbonyl compounds, sulfoxonium ylides reacted with a range of aryl amines to provide efficient access to α-aryl glycines with excellent enantiocontrol in the presence of a suitable chiral phosphoric acid catalyst. The high stability and weak basicity of sulfoxonium ylides not only enable this protocol to be user-friendly and practically useful, but also preclude catalyst decomposition, which is crucial to the excellent amenability to electron-poor amine nucleophiles. Detailed mechanistic studies indicated that the initial protonation is reversible and the C–N bond formation is rate-determining. An organocatalytic asymmetric N–H insertion reaction of α-carbonyl sulfoxonium ylides has been developed to provide efficient access to α-amino esters without involving a metal carbenoid intermediate.![]()
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Affiliation(s)
- Wengang Guo
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Min Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Zhengyu Han
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China
| | - Jianwei Sun
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University Changzhou China .,Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Kowloon Hong Kong SAR China
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10
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Kumar R, Nguyen QH, Um TW, Shin S. Recent Progress in Enolonium Chemistry under Metal-Free Conditions. CHEM REC 2021; 22:e202100172. [PMID: 34418282 DOI: 10.1002/tcr.202100172] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 08/08/2021] [Accepted: 08/11/2021] [Indexed: 11/09/2022]
Abstract
Umpolung approach through inversion of the polarity of conventional enolates, has opened up an unprecedented opportunity in the cross-coupling via alkylation. The enolonium equivalents can be accessed either by hypervalent iodine reagents, activation/oxidation of amides, or the oxidation of alkynes. Under umpolung conditions, highly basic conditions required for classical enolate chemistry can be avoided, and they can couple with unmodified nucleophiles such as heteroatom donors and electron-rich arenes.
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Affiliation(s)
- Ravi Kumar
- Department of Chemistry, Center for New Directions in Organic Chemistry (CNOS), and Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Quynh H Nguyen
- Department of Chemistry, Center for New Directions in Organic Chemistry (CNOS), and Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Tae-Woong Um
- Department of Chemistry, Center for New Directions in Organic Chemistry (CNOS), and Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
| | - Seunghoon Shin
- Department of Chemistry, Center for New Directions in Organic Chemistry (CNOS), and Institute for Natural Sciences, Hanyang University, 222 Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea
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11
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Zhao H, Hu B, Xu L, Walsh PJ. Palladium-catalyzed benzylic C(sp 3)-H carbonylative arylation of azaarylmethyl amines with aryl bromides. Chem Sci 2021; 12:10862-10870. [PMID: 34476065 PMCID: PMC8372623 DOI: 10.1039/d1sc02078a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 07/06/2021] [Indexed: 01/08/2023] Open
Abstract
A highly selective palladium-catalyzed carbonylative arylation of weakly acidic benzylic C(sp3)-H bonds of azaarylmethylamines with aryl bromides under 1 atm of CO gas has been achieved. This work represents the first examples of use of such weakly acidic pronucleophiles in this class of transformations. In the presence of a NIXANTPHOS-based palladium catalyst, this one-pot cascade process allows a range of azaarylmethylamines containing pyridyl, quinolinyl and pyrimidyl moieties and acyclic and cyclic amines to undergo efficient reactions with aryl bromides and CO to provide α-amino aryl-azaarylmethyl ketones in moderate to high yields with a broad substrate scope and good tolerance of functional groups. This reaction proceeds via in situ reversible deprotonation of the benzylic C-H bonds to give the active carbanions, thereby avoiding prefunctionalized organometallic reagents and generation of additional waste. Importantly, the operational simplicity, scalability and diversity of the products highlight the potential applicability of this protocol.
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Affiliation(s)
- Haoqiang Zhao
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania 231 South 34th Street Philadelphia Pennsylvania 19104-6323 USA
- Department of Chemistry, Renmin University of China Beijing 100872 China
| | - Bowen Hu
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania 231 South 34th Street Philadelphia Pennsylvania 19104-6323 USA
| | - Lijin Xu
- Department of Chemistry, Renmin University of China Beijing 100872 China
| | - Patrick J Walsh
- Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation, Department of Chemistry, University of Pennsylvania 231 South 34th Street Philadelphia Pennsylvania 19104-6323 USA
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12
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Synthesis of (E)-iodo vinylsulfones via oxidative addition of thiol into alkyne under metal free condition. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132310] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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Abstract
AbstractThis Account discusses several new reaction methods developed in our group that utilize sulfur-mediated reactions through sulfonium salts and ylides, highlighting the interplay of rational design and serendipity. Our initial goal was to convert aliphatic C–H bonds into C–C bonds site-selectively, and without the use of transition-metal catalysts. While a proof-of-concept has been achieved, this target is far from being ideally realized. The unexpected discovery of an anti-Markovnikov rearrangement and subsequent studies on difunctionalization of alkynes were much more straightforward, and eventually led to the new possibility of asymmetric N–H insertion of sulfonium ylides through Brønsted acid catalysis.1 Introduction2 Allylic/Propargylic C–H Functionalization3 Anti-Markovnikov Rearrangement4 Difunctionalization of Alkynes5 Asymmetric N–H Insertion of Sulfonium Ylides6 Conclusion
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14
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Zhang Z, Li X, Shi D. Visible‐Light‐Promoted Oxy‐difluoroalkylation of Aryl Alkynes for the Synthesis of
β
‐Fluoroenones and
α
‐Difluoroalkyl Ketones. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100289] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Zhong Zhang
- State Key Laboratory of Microbial Technology and Marine Biotechnology Research Center Shandong University 72 Binhai Road Qingdao 266237 Shandong People's Republic of China
| | - Xiangqian Li
- State Key Laboratory of Microbial Technology and Marine Biotechnology Research Center Shandong University 72 Binhai Road Qingdao 266237 Shandong People's Republic of China
| | - Dayong Shi
- State Key Laboratory of Microbial Technology and Marine Biotechnology Research Center Shandong University 72 Binhai Road Qingdao 266237 Shandong People's Republic of China
- Laboratory for Marine Biology and Biotechnology Pilot National Laboratory for Marine Science and Technology 168 Wenhai Road Qingdao 266237 Shandong People's Republic of China
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15
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Day DP, Vargas JAM, Burtoloso ACB. Synthetic Routes Towards the Synthesis of Geminal α-Difunctionalized Ketones. CHEM REC 2021; 21:2837-2854. [PMID: 33533538 DOI: 10.1002/tcr.202000176] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/11/2021] [Indexed: 12/25/2022]
Abstract
The importance of gem-difunctionalized ketones is represented by their broad applications across chemical boundaries over recent years. The interesting reactivities that this class of compounds possess have made them ideal building blocks to access high-value organic molecules. Furthermore, the gem-difunctionalized ketone moiety has featured in numerous bioactive molecules. For these reasons, a plethora of routes to access such significant molecules have been developed by research groups worldwide - this account looks at delineating the synthesis of gem-difunctionalized ketones from carbonyl substrates, diazo compounds, sulfur ylides and alkynyl reactants.
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Affiliation(s)
- David P Day
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil
| | - Jorge A M Vargas
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil.,Facultad de Ciencias Básicas, Universidad Santiago de Cali, Calle 5 # 62-00 Campus Pampalinda, Santiago de Cali, Colombia
| | - Antonio C B Burtoloso
- Instituto de Química de São Carlos, Universidade de São Paulo, CEP 13560-970, São Carlos, SP, Brasil
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16
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Allen LAT, Raclea RC, Natho P, Parsons PJ. Recent advances in the synthesis of α-amino ketones. Org Biomol Chem 2021; 19:498-513. [PMID: 33325975 DOI: 10.1039/d0ob02098b] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Due to the importance of the amino ketone motif in synthetic and medicinal chemistry, the number of protocols developed in recent years has considerably increased. This review serves to collate and critically evaluate novel methodologies published since 2011 towards this high value synthon. The chapters are divided by the requisite functionality in the starting material, and an emphasis is placed on discussing functional group compatibility and resultant product substitution patterns. Throughout, applications to medicinal targets are highlighted and mechanistic details are presented, and we further provide a short outlook for future development and emerging potential within this area.
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Affiliation(s)
- Lewis A T Allen
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ, London, UK.
| | - Robert-Cristian Raclea
- Massachusetts Institute of Technology, Department of Chemistry, 77, Massachusetts Avenue, Cambridge, MA 02139-4307, USA
| | - Philipp Natho
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ, London, UK.
| | - Philip J Parsons
- Department of Chemistry, Imperial College London, Molecular Sciences Research Hub, W12 0BZ, London, UK.
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17
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Kazmierczak JC, Cargnelutti R, Barcellos T, Silveira CC, Schumacher RF. Selective synthesis of α-organylthio esters and α-organylthio ketones from β-keto esters and sodium S-organyl sulfurothioates under basic conditions. Beilstein J Org Chem 2021; 17:234-244. [PMID: 33564334 PMCID: PMC7849251 DOI: 10.3762/bjoc.17.24] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 01/07/2021] [Indexed: 11/23/2022] Open
Abstract
We described herein a selective method to prepare α-organylthio esters and α-organylthio ketones by the reaction of β-keto esters with sodium S-benzyl sulfurothioate or sodium S-alkyl sulfurothioate (Bunte salts) under basic conditions in toluene as the solvent at 100 °C. When 4 equivalents of a base were used, a series of differently substituted α-thio esters were obtained with up to 90% yield. On the other hand, employing 2 equivalents of a base, α-thio ketones were achieved after 18 h under air. Furthermore, after a shorter reaction time, the isolation of keto-enol tautomers was possible, revealing them as significant intermediates for the mechanism elucidation.
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Affiliation(s)
- Jean C Kazmierczak
- Departamento de Química, CCNE, Universidade Federal de Santa Maria–UFSM, Santa Maria, 97105-900, RS, Brazil
| | - Roberta Cargnelutti
- Departamento de Química, CCNE, Universidade Federal de Santa Maria–UFSM, Santa Maria, 97105-900, RS, Brazil
| | - Thiago Barcellos
- Instituto de Biotecnologia Universidade de Caxias do Sul–UCS, Caxias do Sul, RS, Brazil
| | - Claudio C Silveira
- Departamento de Química, CCNE, Universidade Federal de Santa Maria–UFSM, Santa Maria, 97105-900, RS, Brazil
| | - Ricardo F Schumacher
- Departamento de Química, CCNE, Universidade Federal de Santa Maria–UFSM, Santa Maria, 97105-900, RS, Brazil
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18
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Zeng JJ, Zhao B, Tang XB, Han S, Yang ZQ, Liu ZP, Zhang W, Lu J. Metal-free catalytic hydrocarboxylation of hexafluorobut-2-yne. RSC Adv 2021; 11:38938-38943. [PMID: 35493246 PMCID: PMC9044190 DOI: 10.1039/d1ra06526b] [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: 08/30/2021] [Accepted: 11/14/2021] [Indexed: 11/21/2022] Open
Abstract
An efficient method for stereoselective synthesis of trifluorinated enol esters catalyzed by base was introduced.
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Affiliation(s)
- Ji-Jun Zeng
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
| | - Bo Zhao
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
| | - Xiao-Bo Tang
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
| | - Sheng Han
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
| | - Zhi-Qiang Yang
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
| | - Ze-Peng Liu
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
| | - Wei Zhang
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
| | - Jian Lu
- State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi'an Modern Chemistry Research Institute, Xi'an, 710065, China
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19
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Wang D, Carlton CG, Tayu M, McDouall JJW, Perry GJP, Procter DJ. Trifluoromethyl Sulfoxides: Reagents for Metal‐Free C−H Trifluoromethylthiolation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202005531] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Dong Wang
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - C. Grace Carlton
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - Masanori Tayu
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
- Department of Chemistry Meiji Pharmaceutical University 2-522-1 Noshio Kiyose Tokyo 204-8588 Japan
| | | | - Gregory J. P. Perry
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
| | - David J. Procter
- Department of Chemistry University of Manchester Oxford Road Manchester M13 9PL UK
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20
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Wang D, Carlton CG, Tayu M, McDouall JJW, Perry GJP, Procter DJ. Trifluoromethyl Sulfoxides: Reagents for Metal-Free C-H Trifluoromethylthiolation. Angew Chem Int Ed Engl 2020; 59:15918-15922. [PMID: 32463942 PMCID: PMC7540508 DOI: 10.1002/anie.202005531] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 05/21/2020] [Indexed: 12/22/2022]
Abstract
Trifluoromethyl sulfoxides are a new class of trifluoromethylthiolating reagent. The sulfoxides engage in metal-free C-H trifluoromethylthiolation with a range of (hetero)arenes. The method is also applicable to the functionalization of important compound classes, such as ligand derivatives and polyaromatics, and in the late-stage trifluoromethylthiolation of medicines and agrochemicals. The isolation and characterization of a sulfonium salt intermediate supports an interrupted Pummerer reaction mechanism.
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Affiliation(s)
- Dong Wang
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - C. Grace Carlton
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - Masanori Tayu
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
- Department of ChemistryMeiji Pharmaceutical University2-522-1 NoshioKiyoseTokyo204-8588Japan
| | | | - Gregory J. P. Perry
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
| | - David J. Procter
- Department of ChemistryUniversity of ManchesterOxford RoadManchesterM13 9PLUK
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21
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Guo W, Luo Y, Sung HHY, Williams ID, Li P, Sun J. Chiral Phosphoric Acid Catalyzed Enantioselective Synthesis of α-Tertiary Amino Ketones from Sulfonium Ylides. J Am Chem Soc 2020; 142:14384-14390. [DOI: 10.1021/jacs.0c07210] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Wengang Guo
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, SAR China
| | - Yuzheng Luo
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Herman H.-Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, SAR China
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, SAR China
| | - Pingfan Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jianwei Sun
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, SAR China
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22
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Wang Y, Liu X, Zhu B, Guo P, Pei Y, He Q, Cao H. Cu(I)-Catalyzed Three-Component Cyclization for the Construction of Functionalized Thiazoles. J Org Chem 2020; 85:10118-10124. [PMID: 32610902 DOI: 10.1021/acs.joc.0c01381] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A novel and straightforward strategy for the synthesis of functionalized thiazoles from thioamides, ynals, and alcohols via a copper(I)-catalyzed three-component reaction has been described. Through the formation of new C-S, C-N, and C-O bonds in one pot, it is easy to produce various valuable thiazoles fixed with aryl or heteroaryl groups. In addition, the reaction also exhibits other unique advantages, such as high step economics, good functional group tolerance, and good regioselectivity.
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Affiliation(s)
- Yajun Wang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Baofu Zhu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Pengfeng Guo
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Yongyan Pei
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Qiuxing He
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. of China
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23
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Sulfur-mediated difunctionalization of internal and terminal alkynes for the synthesis of α-acetoxy ketones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151707] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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24
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Synthesis of Epoxides from Alkyl Bromides and Alcohols with in Situ Generation of Dimethyl Sulfonium Ylide in DMSO Oxidations. J Org Chem 2020; 85:537-547. [PMID: 31808693 DOI: 10.1021/acs.joc.9b02621] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Direct conversion of the readily available alkyl bromides and alcohols to value-added epoxides using dimethyl sulfoxide (DMSO) under mild reaction conditions has been developed. Benzyl and allyl bromides, and activated and unactivated alcohols all proceeded smoothly to give epoxides in high to excellent yield. Dimethyl sulfide, generated by DMSO oxidations, was in situ elaborated to form the substituted dimethyl sulfonium ylide species that participates in the Corey-Chaykovsky epoxidation in a domino and one-pot fashion, respectively.
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25
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Abstract
A metal-free, oxidative coupling of phenols with various nucleophiles, including arenes, 1,3-diketones and other phenols, is reported. Cross-coupling is mediated by a sulfoxide which inverts the reactivity of the phenol partner. Crucially, the process shows high selectivity for cross-versus homo-coupling and allows efficient access to a variety of aromatic scaffolds including biaryls, benzofurans and, through an iterative procedure, aromatic oligomers. A metal-free, oxidative coupling of phenols with various nucleophiles, including arenes, 1,3-diketones and other phenols, is reported.![]()
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Affiliation(s)
- Zhen He
- Department of Chemistry, University of Manchester Oxford Rd Manchester M13 9PL UK
| | - Gregory J P Perry
- Department of Chemistry, University of Manchester Oxford Rd Manchester M13 9PL UK
| | - David J Procter
- Department of Chemistry, University of Manchester Oxford Rd Manchester M13 9PL UK
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26
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Risi C, Cini E, Petricci E, Saponaro S, Taddei M. In Water Markovnikov Hydration and One‐Pot Reductive Hydroamination of Terminal Alkynes under Ruthenium Nanoparticle Catalysis. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901235] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Caterina Risi
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Elena Cini
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Elena Petricci
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Simone Saponaro
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
| | - Maurizio Taddei
- Dipartimento di Biotecnologie, Chimica e Farmacia Università degli Studi di Siena Via A. Moro 2 53100 Siena Italy
- CNR – ICCOM Istituto di Chimica dei Composti Organometallici Via Madonna del Piano 10 50019 Sesto Fiorentino (FI) Italy
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27
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Yang Z, Lu F, Li H, Zhang Y, Lin W, Guo P, Wan J, Shi R, Wang T, Lei A. Direct electrooxidation of alkynes to benzoin bis-ethers. Org Chem Front 2020. [DOI: 10.1039/d0qo01161d] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electrosynthesis of benzoin bis-ethers from alkynes and alcohols under metal-free and external oxidant free conditions.
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Affiliation(s)
- Zengzhuan Yang
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Fangling Lu
- College of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an
- P. R. China
| | - Haiyan Li
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Yuying Zhang
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Wen Lin
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Peng Guo
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Juelin Wan
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Renyi Shi
- The Institute for Advanced Studies (IAS)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Tao Wang
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Aiwen Lei
- National Research Center for Carbohydrate Synthesis
- Jiangxi Normal University
- Nanchang
- P. R. China
- The Institute for Advanced Studies (IAS)
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28
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Yan J, Pulis AP, Perry GJP, Procter DJ. Metal‐Free Synthesis of Benzothiophenes by Twofold C−H Functionalization: Direct Access to Materials‐Oriented Heteroaromatics. Angew Chem Int Ed Engl 2019; 58:15675-15679. [DOI: 10.1002/anie.201908319] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 08/15/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Jiajie Yan
- School of Chemistry University of Manchester Oxford Rd Manchester M13 9PL UK
| | - Alexander P. Pulis
- School of Chemistry University of Manchester Oxford Rd Manchester M13 9PL UK
| | - Gregory J. P. Perry
- School of Chemistry University of Manchester Oxford Rd Manchester M13 9PL UK
| | - David J. Procter
- School of Chemistry University of Manchester Oxford Rd Manchester M13 9PL UK
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29
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Yan J, Pulis AP, Perry GJP, Procter DJ. Metal‐Free Synthesis of Benzothiophenes by Twofold C−H Functionalization: Direct Access to Materials‐Oriented Heteroaromatics. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908319] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Jiajie Yan
- School of Chemistry University of Manchester Oxford Rd Manchester M13 9PL UK
| | - Alexander P. Pulis
- School of Chemistry University of Manchester Oxford Rd Manchester M13 9PL UK
| | - Gregory J. P. Perry
- School of Chemistry University of Manchester Oxford Rd Manchester M13 9PL UK
| | - David J. Procter
- School of Chemistry University of Manchester Oxford Rd Manchester M13 9PL UK
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30
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Luo H, Hu G, Li P. Sulfur-Mediated Allylic C-H Arylation, Epoxidation, and Aziridination. J Org Chem 2019; 84:10569-10578. [PMID: 31287687 DOI: 10.1021/acs.joc.9b01438] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Transition-metal-free, sulfur-mediated allylic C-H arylation, epoxidation, and aziridination were realized through one-pot procedures. The reaction design involved initial addition between olefins and triflic anhydride activated sulfoxides, followed by subsequent reactions of the allylic sulfur ylides generated under basic conditions with arylboronic acids, aldehydes, or aldimines, to give allylic arylation, epoxidation, or aziridination products, respectively.
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Affiliation(s)
- Hang Luo
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Gang Hu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China.,Department of Chemistry , Baotou Teacher's College , Baotou 014030 , China
| | - Pingfan Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
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31
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Nguyen QH, Nguyen NH, Kim H, Shin S. Synthesis of γ-substituted carbonyl compounds from DMSO-mediated oxidation of enynamides: mechanistic insights and carbon- and hetero-functionalizations. Chem Sci 2019; 10:8799-8805. [PMID: 31803452 PMCID: PMC6849631 DOI: 10.1039/c9sc03663f] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 08/04/2019] [Indexed: 02/05/2023] Open
Abstract
1,3-Enynamides underwent oxygenative coupling with carbon- and heteroatom nucleophiles with high remote selectivity. Kinetic analysis revealed a continuum mechanism between concerted SN2′′ and via a carbocation, depending on the nucleophiles used.
Oxidative coupling of 1,3-enynamides using DMSO as a terminal oxidant has been developed. Carbon as well as unmodified heteroatom nucleophiles, including aliphatic alcohols, thiols, and hydrazides, could be efficiently alkylated at the γ-position in a highly regioselective fashion. The kinetic analysis suggested a nucleophile-dependent mechanism ranging from a concerted SN2′′ to a carbocationic mechanism. Thus, the remote site-selectivity was ascribed to the partial positive charge developing at the terminal carbocationic center.
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Affiliation(s)
- Quynh H Nguyen
- Department of Chemistry , Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS) , Hanyang University , 222 Wangsimni-ro, Seongdong-gu , Seoul 04763 , Korea .
| | - Nguyen H Nguyen
- Department of Chemistry , Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS) , Hanyang University , 222 Wangsimni-ro, Seongdong-gu , Seoul 04763 , Korea .
| | - Hanbyul Kim
- Department of Chemistry , Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS) , Hanyang University , 222 Wangsimni-ro, Seongdong-gu , Seoul 04763 , Korea .
| | - Seunghoon Shin
- Department of Chemistry , Research Institute for Natural Sciences and Center for New Directions in Organic Synthesis (CNOS) , Hanyang University , 222 Wangsimni-ro, Seongdong-gu , Seoul 04763 , Korea .
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32
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Huang J, Hu G, An S, Chen D, Li M, Li P. Synthesis of N-Alkylpyridin-4-ones and Thiazolo[3,2- a]pyridin-5-ones through Pummerer-Type Reactions. J Org Chem 2019; 84:9758-9769. [PMID: 31290663 DOI: 10.1021/acs.joc.9b01672] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
N-Alkylated 4-pyridones were obtained through a one-pot procedure involving either normal or interrupted Pummerer reactions between triflic anhydride-activated sulfoxides and 4-fluoropyridine derivatives, followed by hydrolysis. On the other hand, triflic anhydride-activated benzyl 6-fluoro-2-pyridyl sulfoxide could react with alkenes or alkynes to afford thiazolo[3,2-a]pyridin-5-ones, via the pyridinium salt intermediates.
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Affiliation(s)
- Jingjia Huang
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Gang Hu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China.,Department of Chemistry , Baotou Teacher's College , Baotou 014030 , China
| | - Shaoyu An
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Dongding Chen
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Minglei Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Pingfan Li
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science , Beijing University of Chemical Technology , Beijing 100029 , China
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33
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Chen D, Fu Y, Cao X, Luo J, Wang F, Huang S. Metal-Free Cyclopropanol Ring-Opening C(sp3)–C(sp2) Cross-Couplings with Aryl Sulfoxides. Org Lett 2019; 21:5600-5605. [DOI: 10.1021/acs.orglett.9b01908] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dengfeng Chen
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Yuanyuan Fu
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Xiaoji Cao
- College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, Zhejiang 310014, P. R. China
| | - Jinyue Luo
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Fei Wang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
| | - Shenlin Huang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, P. R. China
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34
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Meng X, Chen D, Cao X, Luo J, Wang F, Huang S. Synthesis of polysubstituted cyclic 1,2-diketones enabled by iterative sulfoxide-mediated arylation. Chem Commun (Camb) 2019; 55:12495-12498. [DOI: 10.1039/c9cc06505a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A metal-free iterative C–H arylation of cyclic 1,2-diketones with aryl sulfoxides has been developed.
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Affiliation(s)
- Xiangtai Meng
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- Nanjing Forestry University
| | - Dengfeng Chen
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- Nanjing Forestry University
| | - Xiaoji Cao
- College of Chemical Engineering
- Zhejiang University of Technology
- Hangzhou
- P. R. China
| | - Jinyue Luo
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- Nanjing Forestry University
| | - Fei Wang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- Nanjing Forestry University
| | - Shenlin Huang
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass
- College of Chemical Engineering
- Jiangsu Key Lab of Biomass-Based Green Fuels and Chemicals
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources
- Nanjing Forestry University
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