1
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McClure TJ, Saludares C, Martinez G, Orozco C, Navarro R. Decarboxylative Allylic Alkylation of Phthalides: Stabilized Benzylic Nucleophiles for sp 3-sp 3 Coupling. J Org Chem 2022; 87:7557-7564. [PMID: 35575695 DOI: 10.1021/acs.joc.2c00723] [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
A new family of stabilized benzylic nucleophiles for the palladium-catalyzed decarboxylative allylic alkylation reaction has been developed. Allyl esters derived from 3-carboxyphthalides were found to undergo palladium-catalyzed deallylation and decarboxylation under mild reaction conditions, a process facilitated by the formation of a stabilized aromatic anion. The regioselective allylic coupling of this intermediate afforded a variety of functionalized phthalides in 73-96% yields.
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Affiliation(s)
- Timothy J McClure
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Connor Saludares
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Gisela Martinez
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Cheyenne Orozco
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
| | - Raul Navarro
- Department of Chemistry, Occidental College, Los Angeles, California 90041, United States
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2
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Anthony S, Wonilowicz LG, McVeigh MS, Garg NK. Leveraging Fleeting Strained Intermediates to Access Complex Scaffolds. JACS AU 2021; 1:897-912. [PMID: 34337603 PMCID: PMC8317162 DOI: 10.1021/jacsau.1c00214] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Indexed: 05/07/2023]
Abstract
Arynes, strained cyclic alkynes, and strained cyclic allenes were validated as plausible intermediates in the 1950s and 1960s. Despite initially being considered mere scientific curiosities, these transient and highly reactive species have now become valuable synthetic building blocks. This Perspective highlights recent advances in the field that have allowed access to structural and stereochemical complexity, including recent breakthroughs in asymmetric catalysis.
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3
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Kimaru N, Komatsuki K, Saito K, Yamada T. Decarboxylation-triggered homo-Nazarov cyclization of cyclic enol carbonates catalyzed by rhenium complex. Chem Commun (Camb) 2021; 57:6133-6136. [PMID: 34042121 DOI: 10.1039/d1cc01144h] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Decarboxylative homo-Nazarov cyclization catalyzed by a Lewis acid was achieved using a cyclic enol carbonate bearing a cyclopropane moiety as a substrate. Various substrates were converted into the corresponding multi-substituted cyclohexenones in good yields via decarboxylation, followed by 6-membered ring formation involving cyclopropane-ring-opening.
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Affiliation(s)
- Natsuki Kimaru
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Keiichi Komatsuki
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Kodai Saito
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
| | - Tohru Yamada
- Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
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4
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Doi R, Hayashi K, Sato Y. Palladium-catalyzed Decarboxylative α-Polyfluoroarylation of Ketones. CHEM LETT 2021. [DOI: 10.1246/cl.210092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ryohei Doi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Kanako Hayashi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, Hokkaido 060-0812, Japan
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5
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Bae D, Lee J, Jin H, Ryu DH. Bifunctional Urea/Hg(OAc) 2-Mediated Synthesis of 4-Aryl-6-oxycarbonyl-2-pyrones and 2-Pyridones from Dithiomalonate and β,γ-Unsaturated α-Keto Esters. J Org Chem 2021; 86:6001-6014. [PMID: 33819048 DOI: 10.1021/acs.joc.1c00323] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Disubstituted 2-pyrones and 2-pyridones were obtained by bifunctional urea-catalyzed Michael addition/lactonization or lactamization followed by a Hg(OAc)2- or Hg(OAc)2/DBU-mediated hydrolysis/decarboxylation/dehydrogenation process. This one-pot two-stage protocol enabled the rapid synthesis of 4,6-disubstituted 2-pyrones and 2-pyridones from dithiomalonate and β,γ-unsaturated α-keto esters in practical yields under mild reaction conditions. Additionally, the obtained 2-pyridones were facilely transformed to 2,4,6-trisubstituted pyridines in excellent yields.
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Affiliation(s)
- Daeil Bae
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Juyeol Lee
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
| | - Hui Jin
- Liaoning Province Key Laboratory of Green Functional Molecular Design and Development, Institute of Functional Molecules, Shenyang University of Chemical Technology, Shenyang 110142, China
| | - Do Hyun Ryu
- Department of Chemistry, Sungkyunkwan University, Suwon 16419, Korea
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6
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Li C, Ragab SS, Liu G, Tang W. Enantioselective formation of quaternary carbon stereocenters in natural product synthesis: a recent update. Nat Prod Rep 2021; 37:276-292. [PMID: 31515549 DOI: 10.1039/c9np00039a] [Citation(s) in RCA: 108] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Covering: 2013-2018 Natural products bearing quaternary carbon stereocenters have attracted tremendous interest from the synthetic community due to their diverse biological activities and fascinating molecular architectures. However, the construction of these molecules in an enantioselective fashion remains a long-standing challenge because of the lack of efficient asymmetric catalytic methods for installing these motifs. The rapid progress in the development of new-generation efficient chiral catalysts has opened the door for several asymmetric reactions, such as Michael addition, dearomative cyclization, polyene cyclization, α-arylation, cycloaddition, allylation, for the construction of quaternary carbon stereocenters in a highly enantioselective fashion. These asymmetric catalytic methods have greatly facilitated the synthesis of complex natural products with improved output and overall efficiency. In this concise review, we highlight the progress in the last six years in complex natural product synthesis, in which at least one quaternary carbon stereocenter has been constructed via asymmetric catalytic technologies, with particular emphasis on the analysis of the stereochemical model of each enantioselective transformation.
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Affiliation(s)
- Chengxi Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.
| | - Sherif Shaban Ragab
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China. and Photochemistry Department, Chemical Industries Research Division, National Research Centre, Dokki, 12622, Giza, Egypt
| | - Guodu Liu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China. and Department of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, China.
| | - Wenjun Tang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China.
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7
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Masson-Makdissi J, Jang YJ, Prieto L, Taylor MS, Lautens M. Rhodium-Catalyzed Tandem Isomerization–Allylation: From Diallyl Carbonates to α-Quaternary Aldehydes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04128] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jeanne Masson-Makdissi
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Young Jin Jang
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Liher Prieto
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
- Department of Organic Chemistry II, University of the Basque Country (UPV/EHU), P.O. Box 644, 48080 Bilbao, Spain
| | - Mark S. Taylor
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, Toronto, Ontario M5S 3H6, Canada
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8
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O’Broin CQ, Guiry PJ. Construction of All-Carbon Quaternary Stereocenters by Palladium-Catalyzed Decarboxylative Propargylation. Org Lett 2019; 21:5402-5406. [DOI: 10.1021/acs.orglett.9b01493] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Calvin Q. O’Broin
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
| | - Patrick J. Guiry
- Centre for Synthesis and Chemical Biology, School of Chemistry, University College Dublin, Belfield, Dublin 4, Ireland
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9
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Visse R, Möllemann MA, Braun M. Asymmetric Allylic Alkylation of Alkanoic-Acid Ester Enolates. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900822] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Robin Visse
- Institute of Organic and Macromolecular Chemistry; Heinrich-Heine-University Düsseldorf; Universitätsstr. 1 40225 Düsseldorf Germany
| | - Martin-Alexander Möllemann
- Institute of Organic and Macromolecular Chemistry; Heinrich-Heine-University Düsseldorf; Universitätsstr. 1 40225 Düsseldorf Germany
| | - Manfred Braun
- Institute of Organic and Macromolecular Chemistry; Heinrich-Heine-University Düsseldorf; Universitätsstr. 1 40225 Düsseldorf Germany
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10
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Zheng X, Zhang G, Zhang D. Rhodium(I)‐Catalyzed [4 + 2] Cycloaddition Reactions of 2‐Alkylenecyclo‐butanols with Alkynes and (
E
)‐2‐Nitroethenylbenzene through C(sp
2
)—C(sp
3
) Bond Cleavage. CHINESE J CHEM 2019. [DOI: 10.1002/cjoc.201900082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xinxin Zheng
- Institute of Pharmaceutical ScienceChina Pharmaceutical University Nanjing Jiangsu 210009 China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic ChemistryChinese Academy of Sciences, 345 Lingling Road Shanghai 200032 China
| | - Dayong Zhang
- Institute of Pharmaceutical ScienceChina Pharmaceutical University Nanjing Jiangsu 210009 China
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11
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Liu C, Zhu X, Han Y, Yang H, Zhu C, Fu H. Superbase-promoted selective carbon-carbon bond cleavage driven by aromatization. Org Biomol Chem 2019; 17:4984-4989. [PMID: 31066430 DOI: 10.1039/c9ob00606k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel selective carbon-carbon single bond cleavage has been disclosed through the copper-catalyzed reaction of 1-alkyl-3-alkylindolin-2-imine hydrochlorides with substituted 1-(bromomethyl)-2-iodobenzenes leading to fused N-heterocycles. Mechanistic studies showed that the intrinsic drive of aromatization and the action of the superbase derived from sodium tert-butoxide and dimethylsulfoxide were the key factors leading to the carbon-carbon single bond cleavage. Furthermore, the obtained N-heterocycles are indoloquinoline derivatives with wide biological activities.
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Affiliation(s)
- Can Liu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China. and Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Xianjin Zhu
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Yongzhen Han
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Haijun Yang
- Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
| | - Changjin Zhu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
| | - Hua Fu
- School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China. and Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China
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12
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Doi R, Yabuta A, Sato Y. Palladium-Catalyzed Decarboxylative Alkynylation of α-Acyloxyketones by C(sp 3 )-O Bond Cleavage. Chemistry 2019; 25:5884-5888. [PMID: 30805979 DOI: 10.1002/chem.201900582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 02/23/2019] [Indexed: 11/12/2022]
Abstract
Palladium-catalyzed decarboxylative alkynylation of α-acyloxyketones triggered by C(sp3 )-O bond cleavage is disclosed. The decarboxylation strategy featuring a neutral reaction condition enabled an unprecedent catalytic alkynylation of a ketone enolate. The reaction was applied to a variety of substrates, giving desired products in good yields. We successfully obtained X-ray crystallography of a new palladium-enolate intermediate that was synthesized by a reaction of [Pd(cod)(CH2 TMS)2 ] with XPhos and α-acyloxyketone at room temperature, indicating facile C(sp3 )-O bond disconnection.
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Affiliation(s)
- Ryohei Doi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Akimasa Yabuta
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
| | - Yoshihiro Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo, 060-0812, Japan
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13
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Cheng Q, Tu HF, Zheng C, Qu JP, Helmchen G, You SL. Iridium-Catalyzed Asymmetric Allylic Substitution Reactions. Chem Rev 2018; 119:1855-1969. [PMID: 30582688 DOI: 10.1021/acs.chemrev.8b00506] [Citation(s) in RCA: 449] [Impact Index Per Article: 74.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In this review, we summarize the origin and advancements of iridium-catalyzed asymmetric allylic substitution reactions during the past two decades. Since the first report in 1997, Ir-catalyzed asymmetric allylic substitution reactions have attracted intense attention due to their exceptionally high regio- and enantioselectivities. Ir-catalyzed asymmetric allylic substitution reactions have been significantly developed in recent years in many respects, including ligand development, mechanistic understanding, substrate scope, and application in the synthesis of complex functional molecules. In this review, an explicit outline of ligands, mechanism, scope of nucleophiles, and applications is presented.
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Affiliation(s)
- Qiang Cheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Hang-Fei Tu
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Chao Zheng
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
| | - Jian-Ping Qu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials , Nanjing Tech University , Nanjing 211816 , China
| | - Günter Helmchen
- Organisch-Chemisches Institut der Ruprecht-Karls , Universität Heidelberg , Im Neuenheimer Feld 270 , D-69120 Heidelberg , Germany
| | - Shu-Li You
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Lu , Shanghai 200032 , China
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14
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Kingston C, James J, Guiry PJ. Development of and Recent Advances in Pd-Catalyzed Decarboxylative Asymmetric Protonation. J Org Chem 2018; 84:473-485. [DOI: 10.1021/acs.joc.8b02478] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Sultan S, Shah BA. Carbon‐Carbon and Carbon‐Heteroatom Bond Formation Reactions Using Unsaturated Carbon Compounds. CHEM REC 2018; 19:644-660. [DOI: 10.1002/tcr.201800095] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 09/12/2018] [Indexed: 12/21/2022]
Affiliation(s)
- Shaista Sultan
- Natural Product Chemistry Division and AcSIRCSIR-Indian Institute of Integrative Medicine Jammu- 180001
| | - Bhahwal Ali Shah
- Natural Product Chemistry Division and AcSIRCSIR-Indian Institute of Integrative Medicine Jammu- 180001
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16
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Zhang H, Lu Z. Nickel/Copper Dual Catalysis for Sequential Nazarov Cyclization/Decarboxylative Aldol Reaction. Org Lett 2018; 20:5709-5713. [PMID: 30160123 DOI: 10.1021/acs.orglett.8b02426] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A nickel/copper cocatalyzed sequential Nazarov cyclization/decarboxylative aldol reaction is reported. Various β-hydroxycyclopentenones containing three contiguous stereocenters were prepared in good yields with high diastereoselectivities. A gram-scale reaction and further derivatizations were easily achieved to highlight the synthetic utility of this transformation. Preliminary attempts for sequential asymmetric transformation were also conducted.
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Affiliation(s)
- Heyi Zhang
- Department of Chemistry , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
| | - Zhan Lu
- Department of Chemistry , Zhejiang University , 866 Yuhangtang Road , Hangzhou 310058 , China
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17
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Zhu YJ, Lei ZL, Huang DK, Lian B, Liu ZJ, Hu XJ, Liu JT. Decarboxylative difluoromethylation of aldehydes with PhSO 2 CF 2 COOK: A facile and efficient access to difluoromethylated carbinols. Tetrahedron Lett 2018. [DOI: 10.1016/j.tetlet.2018.07.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Ortega-Martínez A, Molina C, Moreno-Cabrerizo C, Sansano JM, Nájera C. Deacylative Reactions: Synthetic Applications. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800063] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Aitor Ortega-Martínez
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
- Instituto de Síntesis Orgánica; Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
| | - Cynthia Molina
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
- Instituto de Síntesis Orgánica; Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
| | - Cristina Moreno-Cabrerizo
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
- Instituto de Síntesis Orgánica; Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
| | - José M. Sansano
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
- Instituto de Síntesis Orgánica; Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
| | - Carmen Nájera
- Departamento de Química Orgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias; Universidad de Alicante; 03080- Alicante Spain
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19
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Li TR, Maliszewski ML, Xiao WJ, Tunge JA. Stereospecific Decarboxylative Benzylation of Enolates: Development and Mechanistic Insight. Org Lett 2018. [PMID: 29533071 DOI: 10.1021/acs.orglett.8b00169] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A palladium-catalyzed decarboxylative coupling of enol carbonates with diarylmethyl electrophiles that are derived from secondary benzylic alcohols has been developed. This method allows the generation of a variety of β-diaryl ketones through an efficient and highly stereospecific coupling. In addition, detailed mechanistic insight into the coupling suggests that the reaction is a rare example of an intramolecular decarboxylative coupling that proceeds without crossover between reactants.
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Affiliation(s)
- Tian-Ren Li
- Department of Chemistry , The University of Kansas , 2010 Malott Hall, 1251 Wescoe Hall Drive , Lawrence , Kansas 66045 , United States.,The KU Chemical Methodologies and Library Development Center of Excellence , 2034 Becker Drive , Lawrence , Kansas 66047 , United States.,Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry , Central China Normal University , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Mary L Maliszewski
- Department of Chemistry , The University of Kansas , 2010 Malott Hall, 1251 Wescoe Hall Drive , Lawrence , Kansas 66045 , United States.,The KU Chemical Methodologies and Library Development Center of Excellence , 2034 Becker Drive , Lawrence , Kansas 66047 , United States
| | - Wen-Jing Xiao
- Key Laboratory of Pesticide & Chemical Biology Ministry of Education, College of Chemistry , Central China Normal University , 152 Luoyu Road , Wuhan , Hubei 430079 , China
| | - Jon A Tunge
- Department of Chemistry , The University of Kansas , 2010 Malott Hall, 1251 Wescoe Hall Drive , Lawrence , Kansas 66045 , United States.,The KU Chemical Methodologies and Library Development Center of Excellence , 2034 Becker Drive , Lawrence , Kansas 66047 , United States
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20
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Zheng X, Guo R, Zhang G, Zhang D. Rhodium(i)-catalyzed asymmetric [4 + 2] cycloaddition reactions of 2-alkylenecyclobutanols with cyclic enones through C-C bond cleavage: efficient access to trans-bicyclic compounds. Chem Sci 2018; 9:1873-1877. [PMID: 29675233 PMCID: PMC5890795 DOI: 10.1039/c7sc04784c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Accepted: 01/02/2018] [Indexed: 12/30/2022] Open
Abstract
We report a rhodium-catalyzed asymmetric formal intermolecular [4 + 2] cycloaddition reaction of 2-alkylenecyclobutanols with α,β-unsaturated cyclic ketones leading to synthetically useful trans-bicyclic molecules. Three consecutive stereogenic centers are formed in a highly enantio- and diastereoselective manner. Stepwise C-C bond cleavage and annulation are likely involved in the reaction pathway. Here, iPr-Duphos is the viable chiral ligand that promotes excellent enantio-control.
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Affiliation(s)
- Xinxin Zheng
- Institute of Pharmaceutical Science , China Pharmaceutical University , Nanjing , P. R. China .
| | - Rui Guo
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China .
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry , Center for Excellence in Molecular Synthesis , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China .
| | - Dayong Zhang
- Institute of Pharmaceutical Science , China Pharmaceutical University , Nanjing , P. R. China .
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21
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Abstract
The first deacylative allylic C-H alkylation has been established by employing the palladium-catalyzed allylic C-H activation and decarboxylative nucleophile generation. A wide scope of nucleophiles are tolerated and densely functionalized alkylation products turn out to be furnished in moderate to good yield. More importantly, this strategy provides an alternative method for the allylic C-H alkylation with less stabilized carbon nucleophiles, and can be further expanded to the synthesis of unconjugated enynes.
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Affiliation(s)
- Xiao-Le Zhou
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China , Hefei 230026, China
| | - Lei Ren
- Anhui Therapy Pharmaceutical Co., LTD , Suzhou 234000, China
| | - Pu-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China , Hefei 230026, China
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22
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Komatsuki K, Sadamitsu Y, Sekine K, Saito K, Yamada T. Stereospecific Decarboxylative Nazarov Cyclization Mediated by Carbon Dioxide for the Preparation of Highly Substituted 2-Cyclopentenones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705909] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Keiichi Komatsuki
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yuta Sadamitsu
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kohei Sekine
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kodai Saito
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Tohru Yamada
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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23
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Komatsuki K, Sadamitsu Y, Sekine K, Saito K, Yamada T. Stereospecific Decarboxylative Nazarov Cyclization Mediated by Carbon Dioxide for the Preparation of Highly Substituted 2-Cyclopentenones. Angew Chem Int Ed Engl 2017; 56:11594-11598. [DOI: 10.1002/anie.201705909] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Indexed: 11/07/2022]
Affiliation(s)
- Keiichi Komatsuki
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yuta Sadamitsu
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kohei Sekine
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kodai Saito
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Tohru Yamada
- Department of Chemistry; Keio University; 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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24
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Huang DK, Lei ZL, Zhu YJ, Liu ZJ, Hu XJ, Mao HF. An expedient synthesis of α,α-difluoro-β-hydroxy ketones via decarboxylative aldol reaction of α,α-difluoro-β-keto acids with aldehydes. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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25
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Guo R, Zheng X, Zhang D, Zhang G. Rhodium(i)-catalyzed stereoselective [4+2] cycloaddition of oxetanols with alkynes through C(sp 3)-C(sp 3) bond cleavage. Chem Sci 2017; 8:3002-3006. [PMID: 28451367 PMCID: PMC5380880 DOI: 10.1039/c6sc05246k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 01/22/2017] [Indexed: 12/31/2022] Open
Abstract
An efficient and convenient synthesis of highly functionalized dihydropyrans has been achieved through rhodium(i)-catalysed tandem C(sp3)–C(sp3) bond cleavage and annulation of oxetanols with alkynes.
An efficient and convenient synthesis of highly functionalized dihydropyrans has been achieved through rhodium(i)-catalysed tandem C(sp3)–C(sp3) bond cleavage and annulation of oxetanols with alkynes. An enantioselective version was enabled using a Binaphine ligand. Excellent site-selectivity and remarkable enantioretention are obtained for 2-substituted oxetanols.
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Affiliation(s)
- Rui Guo
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China . .,University of Chinese Academy of Sciences , Beijing , 100049 , China
| | - Xinxin Zheng
- Institute of Pharmaceutical Science , China Pharmaceutical University , Nanjing , P. R. China .
| | - Dayong Zhang
- Institute of Pharmaceutical Science , China Pharmaceutical University , Nanjing , P. R. China .
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , P. R. China . .,University of Chinese Academy of Sciences , Beijing , 100049 , China
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26
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Suzuki Y, Vatmurge N, Tanaka S, Kitamura M. Enantio- and Diastereoselective Dehydrative "One-Step" Construction of Spirocarbocycles via a Ru/H + -Catalyzed Tsuji-Trost Approach. Chem Asian J 2017; 12:633-637. [PMID: 28139900 DOI: 10.1002/asia.201700013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 01/21/2017] [Indexed: 11/10/2022]
Abstract
Chiral spirocarbocyclic skeletons are ubiquitous in natural products. An intramolecular Tsuji-Trost (T-T) α-allylation of simple cyclic ketones is a reasonable approach to construct chiral spriocarbocyclic motifs; however, it has been a challenging approach despite many excellent intermolecular examples. For the first time, this has been achieved by a Ru/H+ combined catalyst that dehydratively cyclizes racemic allylic alcohols comprising a simple ketone via simultaneous activation of the C=O and OH groups. This chiral technology facilitates the construction of various spirocarbocycles containing two contiguous spiro all-carbon quaternary and tertiary stereocenters. Among four possible stereoisomers, one stereoisomer can be selectively produced in high yield, enhancing the feasibility of the T-T strategy, particularly in the synthesis of spirocarbocycles.
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Affiliation(s)
- Yusuke Suzuki
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
| | - Namdev Vatmurge
- Research Center for Materials Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Shinji Tanaka
- Research Center for Materials Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Masato Kitamura
- Graduate School of Pharmaceutical Sciences, Nagoya University, Chikusa, Nagoya, 464-8601, Japan
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27
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Zhang H, Zhang P, Jiang M, Yang H, Fu H. Merging Photoredox with Copper Catalysis: Decarboxylative Alkynylation of α-Amino Acid Derivatives. Org Lett 2017; 19:1016-1019. [DOI: 10.1021/acs.orglett.6b03888] [Citation(s) in RCA: 76] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hao Zhang
- Key Laboratory of Bioorganic
Phosphorus Chemistry and Chemical Biology (Ministry of Education),
Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Pengxiang Zhang
- Key Laboratory of Bioorganic
Phosphorus Chemistry and Chemical Biology (Ministry of Education),
Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Min Jiang
- Key Laboratory of Bioorganic
Phosphorus Chemistry and Chemical Biology (Ministry of Education),
Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Haijun Yang
- Key Laboratory of Bioorganic
Phosphorus Chemistry and Chemical Biology (Ministry of Education),
Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Hua Fu
- Key Laboratory of Bioorganic
Phosphorus Chemistry and Chemical Biology (Ministry of Education),
Department of Chemistry, Tsinghua University, Beijing 100084, China
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28
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Yoshida M. Selective Synthesis of Cyclic Compounds by Palladium-Catalyzed Cyclization of Propargylic Esters with Nucleophiles. J SYN ORG CHEM JPN 2017. [DOI: 10.5059/yukigoseikyokaishi.75.38] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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29
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Mai S, Zhao Y, Song Q. Chemoselective acylation of benzimidazoles with phenylacetic acids under different Cu catalysts to give fused five-membered N-heterocycles or tertiary amides. Org Biomol Chem 2016; 14:8685-90. [PMID: 27430929 DOI: 10.1039/c6ob01167e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
C-N bond formation via a copper-catalyzed aerobic oxidative decarboxylative tandem protocol was realized. The phenylacetic acids which contain ortho-X (X = F or Br) on the aromatic ring will render a fused five-membered heterocycle via a tandem aromatic nucleophilic substitution and aerobic oxidative decarboxylative acylation at the C(sp(2))-H bond of benzimidazoles under the Cu(OAc)2/K2CO3/BF3·Et2O catalytic system, while with CuBr as the catalyst and pyridine as the base, N-acylation occurred and tertiary amides were obtained.
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Affiliation(s)
- Shaoyu Mai
- Institute of Next Generation Matter Transformation, College of Chemical Engineering at Huaqiao University, China.
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30
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Kenny M, Kitson DJ, Franckevičius V. Catalytic Chemo- and Regioselective Coupling of 1,3-Dicarbonyls with N-Heterocyclic Nucleophiles. J Org Chem 2016; 81:5162-72. [DOI: 10.1021/acs.joc.6b00731] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miles Kenny
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Daniel J. Kitson
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Vilius Franckevičius
- Department of Chemistry, Lancaster University, Lancaster LA1 4YB, United Kingdom
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31
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Maji T, Tunge JA. Palladium-Catalyzed Double-Decarboxylative Addition to Pyrones: Synthesis of Conjugated Dienoic Esters. Org Lett 2016; 17:4766-9. [PMID: 26375378 DOI: 10.1021/acs.orglett.5b02308] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An interceptive decarboxylative allylation protocol has been developed utilizing pyrone as a C4 synthon. This palladium-catalyzed transformation difunctionalizes the pyrone moiety by in situ generation and activation of both the electrophile and nucleophile via a double decarboxylation pathway. Ultimately, allyl carbonates react smoothly with 2-carboxypyrone under mild reaction conditions to generate synthetically useful acyclic dienoic esters, forming carbon dioxide as the sole byproduct.
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Affiliation(s)
- Tapan Maji
- Department of Chemistry, The University of Kansas , 2010 Malott Hall, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
| | - Jon A Tunge
- Department of Chemistry, The University of Kansas , 2010 Malott Hall, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
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32
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Orazov M, Davis ME. Catalysis by framework zinc in silica-based molecular sieves. Chem Sci 2016; 7:2264-2274. [PMID: 29910916 PMCID: PMC5977500 DOI: 10.1039/c5sc03889h] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 01/04/2016] [Indexed: 11/21/2022] Open
Abstract
Adjustable Zn Lewis acid site distributions in crystalline, microporous zincosilicates were studied spectroscopically and explored for catalytic applications.
Microporous and mesoporous zincosilicates (e.g., CIT-6, VPI-8, Zn-MFI, and Zn-MCM-41) synthesized in the presence of alkali cations contain two broad types of Zn sites: one that is a dication analog of the monocation ion-exchangeable Al-site in aluminosilicates, while the other resembles isolated Zn sites on amorphous silica. The ratio of these sites varies, depending on the synthesis conditions of the zincosilicate. Post-synthetic strategies based on ion-exchange can alter the site distribution towards either population. Furthermore, post-synthetic introduction of isolated Zn sites of the latter type is possible for materials possessing silanol nests. Both types of sites behave as Lewis acid centers in probe-molecule IR spectroscopy, but have very different catalytic properties. Due to the unusually high adsorption energies of Lewis bases on such materials, Lewis acid catalysis is difficult at low temperatures and in solvents bearing Lewis basic functionality. However, at high temperatures, in hydrocarbon solvents, CIT-6 (Zn-beta) is able to selectively catalyze the Lewis-acid-catalyzed Diels–Alder cycloaddition–dehydration reactions of ethylene with methyl 5-(methoxymethyl)furan-2-carboxylate, a furan that can be derived quantitatively by partial oxidation of biomass-based 5-hydroxymethylfurfural. Additionally, zinc in silica-based molecular sieves is shown here to enable chemistries previously not accessible with framework Sn-, Ti- and Zr-based Lewis acid sites, e.g., the direct production of dimethyl terephthalate by Diels–Alder cycloaddition–dehydration reactions of ethylene and the dimethyl ester of furan-2,5-dicarboxilic acid.
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Affiliation(s)
- Marat Orazov
- Chemical Engineering , California Institute of Technology , Pasadena , 91125 , USA .
| | - Mark E Davis
- Chemical Engineering , California Institute of Technology , Pasadena , 91125 , USA .
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33
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Liu P, Zhang G, Sun P. Transition metal-free decarboxylative alkylation reactions. Org Biomol Chem 2016; 14:10763-10777. [DOI: 10.1039/c6ob02101h] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
This review summarizes recent advances in the transition metal-free decarboxylative alkylation of carboxylic acids and their derivatives.
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Affiliation(s)
- Ping Liu
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
| | - Guanghui Zhang
- School of Chemical Engineering
- Purdue University
- West Lafayette
- USA
| | - Peipei Sun
- College of Chemistry and Materials Science
- Nanjing Normal University; Jiangsu Provincial Key Laboratory of Material Cycle Processes and Pollution Control; Jiangsu Collaborative Innovation Center of Biomedical Functional Materials
- Nanjing 210023
- China
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34
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Kazmaier U. Non-stabilized enolates – versatile nucleophiles in transition metal-catalysed allylic alkylations. Org Chem Front 2016. [DOI: 10.1039/c6qo00192k] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review covers new developments in the transition metal-catalyzed allylic alkylations of non-stabilized enolates, preferentially generated from ketone, esters or amides.
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Affiliation(s)
- Uli Kazmaier
- Institute of Organic Chemistry
- Saarland University
- 66041 Saarbrücken
- Germany
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35
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Weber M, Owens K, Masarwa A, Sarpong R. Construction of Enantiopure Taxoid and Natural Product-like Scaffolds Using a C-C Bond Cleavage/Arylation Reaction. Org Lett 2015; 17:5432-5. [PMID: 26485318 DOI: 10.1021/acs.orglett.5b02797] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
An approach to construct enantiopure complex natural product-like frameworks, including the first reported synthesis of a C17 oxygenated taxoid scaffold, is presented. A palladium-catalyzed C-C activation/cross-coupling is utilized to access these structures in a short sequence from (+)-carvone; the scope of this reaction is explored.
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Affiliation(s)
- Manuel Weber
- Department of Chemistry, University of California-Berkeley , Berkeley, California 94720, United States
| | - Kyle Owens
- Department of Chemistry, University of California-Berkeley , Berkeley, California 94720, United States
| | - Ahmad Masarwa
- Department of Chemistry, University of California-Berkeley , Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California-Berkeley , Berkeley, California 94720, United States
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36
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Kenny M, Christensen J, Coles SJ, Franckevičius V. Regioswitchable Palladium-Catalyzed Decarboxylative Coupling of 1,3-Dicarbonyl Compounds. Org Lett 2015. [PMID: 26211448 DOI: 10.1021/acs.orglett.5b01979] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A palladium-catalyzed chemo- and regioselective coupling of 1,3-dicarbonyl compounds via an allylic linker has been developed. This reaction, which displays broad substrate scope, forms two C-C bonds and installs two all-carbon quaternary centers. The regioselectivity of the reaction can be predictably controlled by utilizing an enol carbonate of one of the coupling partners.
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Affiliation(s)
- Miles Kenny
- †Department of Chemistry, Lancaster University, Lancaster LA1 4YB, U.K
| | - Jeppe Christensen
- ‡National Crystallography Service, School of Chemistry, University of Southampton, Southampton SO17 1BJ, U.K
| | - Simon J Coles
- ‡National Crystallography Service, School of Chemistry, University of Southampton, Southampton SO17 1BJ, U.K
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37
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Hussain N, Kim BS, Walsh PJ. Palladium-catalyzed C(sp(3))-H Arylation of N-Boc benzylalkylamines via a deprotonative cross-coupling process. Chemistry 2015; 21:11010-3. [PMID: 26129922 DOI: 10.1002/chem.201502017] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Indexed: 12/16/2022]
Abstract
Diarylmethylamines are key intermediates and products in the pharmaceutical industry. Herein we disclose a novel method toward the synthesis of these important compounds via CH functionalization. Presented is a reversible deprotonation of N-Boc benzylalkylamines at the benzylic CH with in situ arylation by a NiXantPhos-based palladium catalyst (50-93 % yield, 29 examples). The method is also successful with N-Boc-tetrahydroisoquinolines. The advantages of this method are it avoids strong bases, low temperatures, and the need to transmetallate to main group metals for the coupling.
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Affiliation(s)
- Nusrah Hussain
- Department of Chemistry, University of Pennsylvania, 231 S, 34th St. Philadelphia, PA 19104 (USA) http://titanium.chem.upenn.edu/walsh/index.html
| | - Byeong-Seon Kim
- Department of Chemistry, University of Pennsylvania, 231 S, 34th St. Philadelphia, PA 19104 (USA) http://titanium.chem.upenn.edu/walsh/index.html
| | - Patrick J Walsh
- Department of Chemistry, University of Pennsylvania, 231 S, 34th St. Philadelphia, PA 19104 (USA) http://titanium.chem.upenn.edu/walsh/index.html.
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38
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Masarwa A, Weber M, Sarpong R. Selective C–C and C–H Bond Activation/Cleavage of Pinene Derivatives: Synthesis of Enantiopure Cyclohexenone Scaffolds and Mechanistic Insights. J Am Chem Soc 2015; 137:6327-34. [DOI: 10.1021/jacs.5b02254] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ahmad Masarwa
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Manuel Weber
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Richmond Sarpong
- Department of Chemistry, University of California, Berkeley, California 94720, United States
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39
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Kinouchi W, Saeki R, Kawashima H, Kobayashi Y. Palladium-catalyzed allylic substitution of secondary allylic esters with ketone enolates. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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Tokumaru T, Nakata K. InCl3-promoted intramolecular decarboxylative etherification of benzylic carbonates. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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41
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42
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Han SJ, Vogt F, May J, Krishnan S, Gatti M, Virgil S, Stoltz BM. Evolution of a unified, stereodivergent approach to the synthesis of communesin F and perophoramidine. J Org Chem 2015; 80:528-47. [PMID: 25402459 PMCID: PMC4285143 DOI: 10.1021/jo502534g] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Indexed: 01/19/2023]
Abstract
Expedient synthetic approaches to the highly functionalized polycyclic alkaloids communesin F and perophoramidine are described using a unified approach featuring a key decarboxylative allylic alkylation to access a crucial and highly congested 3,3-disubstituted oxindole. Described are two distinct, stereoselective alkylations that produce structures in divergent diastereomeric series possessing the critical vicinal all-carbon quaternary centers needed for each synthesis. Synthetic studies toward these challenging core structures have revealed a number of unanticipated modes of reactivity inherent to these complex alkaloid scaffolds. Additionally, several novel and interesting intermediates en route to the target natural products, such as an intriguing propellane hexacyclic oxindole encountered in the communesin F sequence, are disclosed. Indeed, such unanticipated structures may prove to be convenient strategic intermediates in future syntheses.
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Affiliation(s)
- Seo-Jung Han
- Warren
and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | | | | | | | | | - Scott
C. Virgil
- Warren
and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
| | - Brian M. Stoltz
- Warren
and Katharine Schlinger
Laboratory for Chemistry and Chemical Engineering, Division of Chemistry
and Chemical Engineering, California Institute
of Technology, Pasadena, California 91125, United States
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43
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Zhou Y, Zhou M, Chen M, Su J, Du J, Song Q. β-Ketophosphonates formation via deesterification or deamidation of cinnamyl/alkynyl carboxylates or amides with H-phosphonates. RSC Adv 2015. [DOI: 10.1039/c5ra23950h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
We report here an unprecedented Fe/Cu synergistically catalyzed deesterificative or deamidative oxyphosphorylation of unsaturated carboxylates or amides with H-phosphonates.
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Affiliation(s)
- Yao Zhou
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Mingxin Zhou
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
| | - Ming Chen
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Modern Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Jihu Su
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Modern Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Jiangfeng Du
- Hefei National Laboratory for Physical Sciences at Microscale
- Department of Modern Physics
- University of Science and Technology of China
- Hefei
- P. R. China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation
- College of Chemical Engineering
- College of Materials Science & Engineering at Huaqiao University
- Xiamen
- P. R. China
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44
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Tummanapalli S, Muthuraman P, Vangapandu DN, Shanmugavel G, Kambampati S, Lee KW. Pd-catalyzed decarboxylative allylic coupling of acetates of Baylis–Hillman alcohols with propiolic acids: a highly regio- and stereoselective synthesis of 1,5-diarylpent-1-en-4-yne derivatives. RSC Adv 2015. [DOI: 10.1039/c5ra06168g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Pd-catalyzed decarboxylative allylic coupling of acetates of Baylis–Hillman alcohols with alkynyl carboxylic acids leading to the formation of 1,5-diarylpent-1-en-4-ynes in a highly regio- and stereoselective manner has been developed.
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Affiliation(s)
| | | | | | | | | | - Kee Wei Lee
- Albany Molecular Research Singapore Research Center
- Singapore 117525
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45
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Marek I, Masarwa A, Delaye PO, Leibeling M. Selective Carbon-Carbon Bond Cleavage for the Stereoselective Synthesis of Acyclic Systems. Angew Chem Int Ed Engl 2014; 54:414-29. [DOI: 10.1002/anie.201405067] [Citation(s) in RCA: 264] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Indexed: 11/08/2022]
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46
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Marek I, Masarwa A, Delaye PO, Leibeling M. Selektive C-C-Bindungsspaltung zur stereoselektiven Synthese acyclischer Systeme. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405067] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Ariyarathna Y, Tunge JA. Multicomponent decarboxylative allylations. Chem Commun (Camb) 2014; 50:14049-52. [DOI: 10.1039/c4cc07253g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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First Example of the Intermolecular Palladium-Catalyzed Asymmetric Allylic Alkylation of Hydroxyacrylates: Synthesis of All-Carbon α-Aryl Quaternary Aldehydes. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402911] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Li M, Berritt S, Walsh PJ. Palladium-catalyzed regioselective arylation of 1,1,3-triaryl-2-azaallyl anions with aryl chlorides. Org Lett 2014; 16:4312-5. [PMID: 25093713 PMCID: PMC4136662 DOI: 10.1021/ol502043j] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
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A regioselective
arylation of 1,1,3-triaryl-2-azaallyl anions with
aryl chlorides is described. The palladium-NIXANTPHOS-based catalyst
affords diarylmethylamine derivatives in good yield and without product
isomerization. A gram scale sequential one-pot ketimine synthesis/arylation
protocol was also developed.
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Affiliation(s)
- Minyan Li
- 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, United States
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Xu J, Chen J, Yang Q, Ding L, Liu X, Xu D, Zhao B. Synthesis of α-Methylidene-γ-amino Acid Esters from Aldehydesviaan Aminative Umpolung Strategy. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400210] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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