1
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Wang YJ, Kang WY, Zhao YW, Wang YH, Tian P. N-Heterocyclic Carbene-Catalyzed Formal Intramolecular [3 + 2] Annulations of Cyclohexadienone-Tethered Ynals. Org Lett 2024; 26:3552-3556. [PMID: 38639551 DOI: 10.1021/acs.orglett.4c00950] [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
A formal [3 + 2] annulation of cyclohexadienone-tethered ynals is enabled by an N-heterocyclic carbene (NHC) catalyst, affording a tricyclo[6.2.1.04,11]undecane framework. This study represents the first demonstration of using C═C double bonds as the reaction partner in the NHC-catalyzed annulation of ynals. This strategy is characterized by mild reaction conditions and 100% atom economy as well as high catalytic performance and efficiency.
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Affiliation(s)
- Ya-Jie Wang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Wen-Yu Kang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Yi-Wen Zhao
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Yu-Hui Wang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
| | - Ping Tian
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, 1200 Cailun Road, Shanghai 201203, China
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2
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Wang H, Chi YR, Huang X. Enantioselective Dual Catalysis of N‐Heterocyclic Carbene and Hydrogen‐Bond Donor Organocatalysts. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hongling Wang
- Shenzhen University College of Chemistry and Environmental Engineering International Joint Research Center for Molecular Science CHINA
| | - Yonggui Robin Chi
- Nanyang Technological University Division of Chemistry & Biological Chemistry 21 Nanyang Link 637371 Singapore SINGAPORE
| | - Xuan Huang
- Shenzhen University College of Chemistry and Environmental Engineering International Joint Research Center for Molecular Science CHINA
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3
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Mu YL, Pan L, Lu Q, Xing S, Liu KY, Zhang X. A bifunctional sensitive fluorescence probe based on pyrene for the detection of pH and viscosity in lysosome. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 264:120228. [PMID: 34388430 DOI: 10.1016/j.saa.2021.120228] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 07/08/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
Lysosome is one of the important organelles in intracellular transport. It plays a significant role in the physiological process. The lysosomal microenvironment affects the functions of lysosome. When the original acidic environment of lysozyme is destroyed or the fluid viscosity increases gradually, various diseases are easily induced. However, most fluorescent probes can only locate in cells. The fewer probes of subcellular organelles were found and their functions are often single. So, it is of great importance to design multifunctional fluorescent probes with the capable of localizing in lysosome. In this study, a novel lysosome probe, 4-(4-Pyren-1-yl-but-3-enyl)-morpholine (PIM), was synthesized using pyrene as a fluorescent group and morpholine as a target group. The introduction of morpholine group made PIM localize in lysosome with high selectivity. The fluorescence will be enhanced with the increased viscosity because of restricting the rotation of CC bond and CN in PIM, and the detecting linear range is from 4.05 cP to 393.48 cP, which qualified the requirement of the viscosity monitoring in body. Meanwhile, the fluorescence intensity of PIM declines with the decrease of pH because the Schiff base of PIM is hydrolyzed, which was affirmed by 1H NMR, LC-MS and fluorescence spectra. Moreover, cell imaging and MTT experiments confirmed that PIM as a novel bifunctional probe can be used to detect pH and endogenous viscosity in lysosome.
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Affiliation(s)
- Yi-Lin Mu
- State Key Laboratory of Biobased Material and Green Papermaking and School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Li Pan
- State Key Laboratory of Biobased Material and Green Papermaking and School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Qian Lu
- State Key Laboratory of Biobased Material and Green Papermaking and School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Shu Xing
- School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Ke-Yin Liu
- State Key Laboratory of Biobased Material and Green Papermaking and School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
| | - Xian Zhang
- State Key Laboratory of Biobased Material and Green Papermaking and School of Materials Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China.
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4
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Zhao C, Blaszczyk SA, Wang J. Asymmetric reactions of N-heterocyclic carbene (NHC)-based chiral acyl azoliums and azolium enolates. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
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5
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Fedoseev SV, Belikov MY, Ershov OV, Tafeenko VA. Synthesis of 4-Halofuro[3,4-c]pyridin-3(1H)-ones from 2-Halopyridine-3,4-dicarbonitriles. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020090067] [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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6
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Sharique M, Tambar UK. N-Heterocyclic carbene based catalytic platform for Hauser-Kraus annulations. Chem Sci 2020; 11:7239-7243. [PMID: 34123009 PMCID: PMC8159274 DOI: 10.1039/d0sc03116j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The venerable Hauser–Kraus annulation is an effective and convergent method for generating oxygenated polycyclic aromatic compounds. Despite its application in complex molecule synthesis, the harsh and strongly basic conditions can limit its utility in more functionalized molecular settings. We have developed the first catalytic Hauser–Kraus annulation based on N-heterocyclic carbene catalysis that proceeds under milder conditions. We demonstrate the scope of the transformation in the presence of several functional groups. We also propose a concerted mechanism for the annulation that proceeds through a non-canonical Breslow intermediate. The venerable Hauser–Kraus annulation is an effective and convergent method for generating oxygenated polycyclic aromatic compounds. A catalytic Hauser–Kraus annulation has been developed based on N-heterocyclic carbene catalysis.![]()
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Affiliation(s)
- Mohammed Sharique
- The University of Texas Southwestern Medical Center 5323 Harry Hines Boulevard Dallas Texas 75390-9038 USA
| | - Uttam K Tambar
- The University of Texas Southwestern Medical Center 5323 Harry Hines Boulevard Dallas Texas 75390-9038 USA
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7
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Curti C, Battistini L, Sartori A, Zanardi F. New Developments of the Principle of Vinylogy as Applied to π-Extended Enolate-Type Donor Systems. Chem Rev 2020; 120:2448-2612. [PMID: 32040305 PMCID: PMC7993750 DOI: 10.1021/acs.chemrev.9b00481] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/19/2022]
Abstract
The principle of vinylogy states that the electronic effects of a functional group in a molecule are possibly transmitted to a distal position through interposed conjugated multiple bonds. As an emblematic case, the nucleophilic character of a π-extended enolate-type chain system may be relayed from the legitimate α-site to the vinylogous γ, ε, ..., ω remote carbon sites along the chain, provided that suitable HOMO-raising strategies are adopted to transform the unsaturated pronucleophilic precursors into the reactive polyenolate species. On the other hand, when "unnatural" carbonyl ipso-sites are activated as nucleophiles (umpolung), vinylogation extends the nucleophilic character to "unnatural" β, δ, ... remote sites. Merging the principle of vinylogy with activation modalities and concepts such as iminium ion/enamine organocatalysis, NHC-organocatalysis, cooperative organo/metal catalysis, bifunctional organocatalysis, dicyanoalkylidene activation, and organocascade reactions represents an impressive step forward for all vinylogous transformations. This review article celebrates this evolutionary progress, by collecting, comparing, and critically describing the achievements made over the nine year period 2010-2018, in the generation of vinylogous enolate-type donor substrates and their use in chemical synthesis.
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Affiliation(s)
| | | | | | - Franca Zanardi
- Dipartimento di Scienze degli
Alimenti e del Farmaco, Università
di Parma, Parco Area delle Scienze 27A, 43124 Parma, Italy
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8
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Antien K, Lacambra A, Cossío FP, Massip S, Deffieux D, Pouységu L, Peixoto PA, Quideau S. Bio‐inspired Total Synthesis of Twelve
Securinega
Alkaloids: Structural Reassignments of (+)‐Virosine B and (−)‐Episecurinol A. Chemistry 2019; 25:11574-11580. [DOI: 10.1002/chem.201903122] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 07/19/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Kevin Antien
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Aitor Lacambra
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
- Departamento de Química Orgánica IUniversidad del País Vasco Avda. Tolosa 72, Edificio Korta 20018 San Sebastián Spain
| | - Fernando P. Cossío
- Departamento de Química Orgánica IUniversidad del País Vasco Avda. Tolosa 72, Edificio Korta 20018 San Sebastián Spain
| | - Stéphane Massip
- Univ. BordeauxInstitut Européen de Chimie et Biologie (CNRS-UMS 3033) 2 rue Robert Escarpit 33607 Pessac Cedex France
| | - Denis Deffieux
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Laurent Pouységu
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Philippe A. Peixoto
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Stéphane Quideau
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
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9
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Luo XK, Cai J, Yin ZY, Luo P, Li CJ, Ma H, Seeram NP, Gu Q, Xu J. Fluvirosaones A and B, Two Indolizidine Alkaloids with a Pentacyclic Skeleton from Flueggea virosa. Org Lett 2018; 20:991-994. [DOI: 10.1021/acs.orglett.7b03935] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Xiang-Kun Luo
- Research
Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Jie Cai
- Research
Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Zhi-Yong Yin
- Research
Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Pan Luo
- Research
Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Chan-Juan Li
- Research
Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Hang Ma
- Bioactive
Botanical Research Laboratory, Department of Biomedical and Pharmaceutical
Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Navindra P. Seeram
- Bioactive
Botanical Research Laboratory, Department of Biomedical and Pharmaceutical
Sciences, College of Pharmacy, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Qiong Gu
- Research
Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Jun Xu
- Research
Center for Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
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10
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Xie Y, Wang J. N-Heterocyclic carbene-catalyzed annulation of ynals with amidines: access to 1,2,6-trisubstituted pyrimidin-4-ones. Chem Commun (Camb) 2018; 54:4597-4600. [DOI: 10.1039/c8cc02023j] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A thiazolium-catalyzed annulation of ynals and amidines has been reported to construct pyrimidin-4-ones.
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Affiliation(s)
- Yangxi Xie
- School of Pharmaceutical Sciences
- Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education)
- Tsinghua University
- Beijing
- China
| | - Jian Wang
- School of Pharmaceutical Sciences
- Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education)
- Tsinghua University
- Beijing
- China
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11
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Jiang KM, Jin Y, Lin J. 1,3-Dipolar cycloaddition of uracil derivatives with nitrile oxides: Synthesis of [1,2,4]oxadiazolo[4,5- c ]pyrimidine-5,7(6 H )-dione derivatives. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.10.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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12
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Wu Z, Wang J. Enantioselective Medium-Ring Lactone Synthesis through an NHC-Catalyzed Intramolecular Desymmetrization of Prochiral 1,3-Diols. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02302] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Zijun Wu
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
| | - Jian Wang
- School of Pharmaceutical Sciences, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Bioorganic Phosphorous Chemistry & Chemical Biology (Ministry of Education), Tsinghua University, Beijing 100084, China
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13
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Kong X, Zhang G, Yang S, Liu X, Fang X. N-Heterocyclic Carbene-Catalyzed Umpolung of Alkynyl 1,2-Diketones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700700] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Xiangwen Kong
- Liaoning University; Shenyang 110036 People's Republic of China
| | - Guoxiang Zhang
- College of Chemistry; Fuzhou University; Fuzhou 350116 People's Republic of China
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou 350100 People's Republic of China
| | - Xiaozhi Liu
- Liaoning University; Shenyang 110036 People's Republic of China
| | - Xinqiang Fang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou 350100 People's Republic of China
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14
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Wehlauch R, Gademann K. Securinega
Alkaloids: Complex Structures, Potent Bioactivities, and Efficient Total Syntheses. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700142] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Robin Wehlauch
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
| | - Karl Gademann
- Department of Chemistry; University of Zurich; Winterthurerstrasse 190 8057 Zurich Switzerland
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15
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Wang G, Fu Z, Huang W. Access to Amide from Aldimine via Aerobic Oxidative Carbene Catalysis and LiCl as Cooperative Lewis Acid. Org Lett 2017; 19:3362-3365. [PMID: 28654279 DOI: 10.1021/acs.orglett.7b01195] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, an efficient route to amides from aldimines via aza-Breslow intermediates through aerobic oxidative carbene catalysis with LiCl as a cooperative Lewis acid is described. Many of the obtained N-heteroarylamides feature biological activity. Ambient air was used as the sole oxidant and source of oxygen in this catalytically oxidative amidation. This method allows for a broad substrate scope and mild conditions. The aza-Breslow intermediate derivative was isolated and its crystal structure confirmed.
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Affiliation(s)
- Guanjie Wang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China
| | - Zhenqian Fu
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China
| | - Wei Huang
- Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University , 30 South Puzhu Road, Nanjing 211816, China.,Key Laboratory for Organic Electronics and Information Displays, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications , 9 Wenyuan Road, Nanjing 210023, China
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16
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Wang ZY, Ding YL, Li SN, Cheng Y. N-Heterocyclic Carbene/Lewis Acid Dual Catalysis for the Divergent Construction of Enantiopure Bridged Lactones and Fused Indenes. J Org Chem 2016; 81:11871-11881. [PMID: 27934452 DOI: 10.1021/acs.joc.6b02329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The chiral triazole carbene and Ti(OPr-i)4 cocatalyzed reaction between α,β-unsaturated aldehydes and 2-(aroylvinyl)benzaldehydes was systematically studied. A divergence in reaction pathways was observed under different reaction conditions. In benzene solvent and at ambient temperature, the reaction produced 4,5-dihydro-1,4-methanobenzo[c]oxepin-3-ones, the bridged caprolactones, as the major products in moderate yields with excellent enantioselectivity. The same reaction in dichloroethane and at 50 °C, however, gave 2,8-dihydrocyclopenta[a]indenes as the major products in most cases. The application of the method developed was demonstrated by the transformation of the bridged lactone products into enantiopure 4-hydroxy-1,2,3,4-tetrahydronaphthalene-2-carboxylic acids.
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Affiliation(s)
- Zhan-Yong Wang
- College of Chemistry, Beijing Normal University , Beijing 100875, China
| | - Ya-Li Ding
- College of Chemistry, Beijing Normal University , Beijing 100875, China
| | - Shi-Ning Li
- College of Chemistry, Beijing Normal University , Beijing 100875, China
| | - Ying Cheng
- College of Chemistry, Beijing Normal University , Beijing 100875, China
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17
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Han JC, Li CC. Ruthenium-Catalyzed Metathesis Cascade Reactions in Natural Products Synthesis. CHEM REC 2016; 17:499-517. [PMID: 27775863 DOI: 10.1002/tcr.201600110] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Accepted: 09/12/2016] [Indexed: 12/20/2022]
Abstract
In this account, we provide a brief summary of recent developments in ruthenium-catalyzed metathesis cascade reactions towards the total synthesis of natural products. We also highlight recent progress from our own laboratory regarding the synthesis of securinega alkaloids and humulanolides, which has resulted in the development of novel ruthenium-catalyzed metathesis cascade reactions. Inspired and guided by the pioneering and elegant research conducted in this area, we developed a regio-controlled relay dienyne metathesis cascade reaction and a cyclobutene-promoted RCM/ROM/RCM cascade reaction for the synthesis of securinega alkaloids and humulanolides, respectively.
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Affiliation(s)
- Jing-Chun Han
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, China
| | - Chuang-Chuang Li
- Department of Chemistry, South University of Science and Technology of China, Shenzhen, 518055, China
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18
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Wang MH, Scheidt KA. Cooperative Catalysis and Activation with N-Heterocyclic Carbenes. Angew Chem Int Ed Engl 2016; 55:14912-14922. [DOI: 10.1002/anie.201605319] [Citation(s) in RCA: 359] [Impact Index Per Article: 44.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Indexed: 01/29/2023]
Affiliation(s)
- Michael H. Wang
- Department of Chemistry; Center for Molecular Innovation and Drug Discovery; Chemistry of Life Processes Institute, Silverman Hall; Northwestern University; Evanston IL 60208 (USA)
| | - Karl A. Scheidt
- Department of Chemistry; Center for Molecular Innovation and Drug Discovery; Chemistry of Life Processes Institute, Silverman Hall; Northwestern University; Evanston IL 60208 (USA)
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19
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Affiliation(s)
- Michael H. Wang
- Department of Chemistry; Center for Molecular Innovation and Drug Discovery; Chemistry of Life Processes Institute, Silverman Hall; Northwestern University; Evanston IL 60208 (USA)
| | - Karl A. Scheidt
- Department of Chemistry; Center for Molecular Innovation and Drug Discovery; Chemistry of Life Processes Institute, Silverman Hall; Northwestern University; Evanston IL 60208 (USA)
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20
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Wang G, Wang ZY, Niu SS, Rao Y, Cheng Y. The Reaction of 2-Aroylvinylcinnamaldehydes with Aromatic Aldehydes by Dual Catalysis with a Chiral N-Heterocyclic Carbene and a Lewis Acid: Enantioselective Construction of Tetrahydroindeno[1,2-c]furan-1-ones. J Org Chem 2016; 81:8276-86. [DOI: 10.1021/acs.joc.6b01362] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gang Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Zhan-Yong Wang
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Shuang-Shuo Niu
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Yin Rao
- College of Chemistry, Beijing Normal University, Beijing 100875, China
| | - Ying Cheng
- College of Chemistry, Beijing Normal University, Beijing 100875, China
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21
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Fu Z, Wu X, Chi YR. Rapid access to bicyclic δ-lactones via carbene-catalyzed activation and cascade reaction of unsaturated carboxylic esters. Org Chem Front 2016. [DOI: 10.1039/c5qo00348b] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The carbene-catalyzed activation of α,β-unsaturated ester initiates a well-controlled cascade process for access to iridoid-type multi-cyclic lactones with high stereo-selectivities.
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Affiliation(s)
- Zhenqian Fu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Xingxing Wu
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
| | - Yonggui Robin Chi
- Division of Chemistry and Biological Chemistry
- School of Physical and Mathematical Sciences
- Nanyang Technological University
- Singapore 637371
- Singapore
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22
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Xu J, Zhang W, Liu Y, Zhu S, Liu M, Hua X, Chen S, Lu T, Du D. Formal [3 + 3] annulation of isatin-derived 2-bromoenals with 1,3-dicarbonyl compounds enabled by Lewis acid/N-heterocyclic carbene cooperative catalysis. RSC Adv 2016. [DOI: 10.1039/c5ra27848a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Several novel isatin-derived 2-bromoenals were applied for formal [3 + 3] annulation with 1,3-dicarbonyl compounds enabled by NHC/Lewis acid cooperative catalysis.
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Affiliation(s)
- Junyu Xu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Weiguo Zhang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Yishan Liu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Suzhen Zhu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Ming Liu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Xi Hua
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Siyi Chen
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing
- P. R. China
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23
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Flanigan DM, Romanov-Michailidis F, White NA, Rovis T. Organocatalytic Reactions Enabled by N-Heterocyclic Carbenes. Chem Rev 2015; 115:9307-87. [PMID: 25992594 PMCID: PMC4986729 DOI: 10.1021/acs.chemrev.5b00060] [Citation(s) in RCA: 1395] [Impact Index Per Article: 155.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Darrin M Flanigan
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
| | | | - Nicholas A White
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
| | - Tomislav Rovis
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
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24
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Abstract
A total synthesis of (-)-secu'amamine A has been achieved exploiting Type II Anion Relay Chemistry (ARC) to provide the full linear carbon and nitrogen skeleton in a single flask with the requisite stereochemistry and functionality. A mechanistic rationale is also proposed to account for the stereochemical outcome of the key aldol reaction leading to the advanced aza tricyclic core.
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Affiliation(s)
- Heeoon Han
- Department of Chemistry,
Laboratory for Research on the Structure of Matter and Monell Chemical
Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Amos B. Smith
- Department of Chemistry,
Laboratory for Research on the Structure of Matter and Monell Chemical
Senses Center, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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25
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26
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Hwang IT, Kim H, Lee KI. Mitsunobu Reactions ofcis/trans-3- and -4-Hydroxy-2-aminomethylpyrrolidine Derivatives. B KOREAN CHEM SOC 2015. [DOI: 10.1002/bkcs.10374] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- In Taek Hwang
- Green Chemistry Division; Korea Research Institute of Chemical Technology; Daejeon 305-600 Korea
| | - Hyungrok Kim
- Green Chemistry Division; Korea Research Institute of Chemical Technology; Daejeon 305-600 Korea
| | - Kee-In Lee
- Green Chemistry Division; Korea Research Institute of Chemical Technology; Daejeon 305-600 Korea
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27
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Chirkin E, Michel S, Porée FH. Viability of a [2 + 2 + 1] Hetero-Pauson–Khand Cycloaddition Strategy toward Securinega Alkaloids: Synthesis of the BCD-Ring Core of Securinine and Related Alkaloids. J Org Chem 2015; 80:6525-8. [DOI: 10.1021/acs.joc.5b01118] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Egor Chirkin
- Laboratoire de Pharmacognosie
UMR CNRS 8638, Faculté de Pharmacie, Université Paris Descartes, 4 Avenue de l’Observatoire, F-75006 Paris, France
| | - Sylvie Michel
- Laboratoire de Pharmacognosie
UMR CNRS 8638, Faculté de Pharmacie, Université Paris Descartes, 4 Avenue de l’Observatoire, F-75006 Paris, France
| | - François-Hugues Porée
- Laboratoire de Pharmacognosie
UMR CNRS 8638, Faculté de Pharmacie, Université Paris Descartes, 4 Avenue de l’Observatoire, F-75006 Paris, France
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28
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Zhang H, Han YS, Wainberg MA, Yue JM. Anti-HIV Securinega alkaloid oligomers from Flueggea virosa. Tetrahedron 2015. [DOI: 10.1016/j.tet.2014.10.064] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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Menon RS, Biju AT, Nair V. Recent advances in employing homoenolates generated by N-heterocyclic carbene (NHC) catalysis in carbon-carbon bond-forming reactions. Chem Soc Rev 2015; 44:5040-52. [PMID: 26014054 DOI: 10.1039/c5cs00162e] [Citation(s) in RCA: 408] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The use of NHCs for generating homoenolate species has gained widespread popularity in recent years. A number of highly stereoselective processes of NHC-homoenolates have emerged. Homoenolate reactions have also been employed as key steps in the total synthesis of a number of natural products. The use of compatible co-catalysts, improved NHC-catalyst design and the use of novel precursors for homoenolate generation are among the major developments in this area that were disclosed recently. This tutorial review organises and presents the advancements in this rapidly growing area of catalysis and in the process updates a previous account published in 2011 in this journal.
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Affiliation(s)
- Rajeev S Menon
- Medicinal Chemistry and Pharmacology Division, CSIR-Indian Institute of Chemical Technology, Hyderabad-500 007, India
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30
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Xu J, Chen X, Wang M, Zheng P, Song BA, Chi YR. Aminomethylation of Enals through Carbene and Acid Cooperative Catalysis: Concise Access to β2-Amino Acids. Angew Chem Int Ed Engl 2015; 54:5161-5. [DOI: 10.1002/anie.201412132] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 02/09/2015] [Indexed: 11/09/2022]
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31
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Xu J, Chen X, Wang M, Zheng P, Song BA, Chi YR. Aminomethylation of Enals through Carbene and Acid Cooperative Catalysis: Concise Access to β2-Amino Acids. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201412132] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Yin D, Wang W, Peng Y, Ge Z, Cheng T, Wang X, Li R. Synthesis of furo[3,4-c]quinolin-3(1H)-one derivatives through TMG catalyzed intramolecular aza-MBH reaction based on the furanones. RSC Adv 2015. [DOI: 10.1039/c4ra13796e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The first TMG catalyzed intramolecular aza-MBH reaction based on furanone derivatives for the construction of furo[3,4-c]quinolin-3(1H)-ones scaffold.
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Affiliation(s)
- Dawei Yin
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- China
| | - Wei Wang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- China
| | - Yangqiu Peng
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- China
| | - Zemei Ge
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- China
| | - Tieming Cheng
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- China
| | - Xin Wang
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- China
| | - Runtao Li
- State Key Laboratory of Natural and Biomimetic Drugs
- School of Pharmaceutical Science
- Peking University
- Beijing 100191
- China
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33
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Chirkin E, Atkatlian W, Porée FH. The Securinega Alkaloids. THE ALKALOIDS: CHEMISTRY AND BIOLOGY 2015; 74:1-120. [DOI: 10.1016/bs.alkal.2014.11.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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34
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Wang M, Rong ZQ, Zhao Y. Stereoselective synthesis of ε-lactones or spiro-heterocycles through NHC-catalyzed annulation: divergent reactivity by catalyst control. Chem Commun (Camb) 2014; 50:15309-12. [PMID: 25352217 DOI: 10.1039/c4cc07788a] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
NHC-catalyzed divergent annulation of enals with heterocyclic enones was developed to produce benzofuran/indole-containing ε-lactones or spiro-heterocycles in a highly diastereo- and enantioselective fashion. The chemo-selectivity controlled by the chiral catalyst backbone is particularly noteworthy.
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Affiliation(s)
- Min Wang
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Republic of Singapore.
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35
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Dang HY, Wang ZT, Cheng Y. Changing reaction pathways of the dimerization of 2-formylcinnamates by N-heterocyclic carbene/Lewis acid cooperative catalysis: an unusual cleavage of the carbon-carbon bond. Org Lett 2014; 16:5520-3. [PMID: 25329247 DOI: 10.1021/ol502791s] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Catalyzed by a triazole carbene, the dimerization of 2-formylcinnamates underwent benzoin condensation followed by intramolecular oxa-Michael addition to afford isochromeno[4,3-c]isochromene products. Under the catalysis of a combination of triazole carbene and Ti(OPr-i)4 catalysts, the dimerization reaction of 2-formylcinnamates proceeded through a completely different route to furnish the formation of isochromenone derivatives with the elimination of an acetate moiety.
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Affiliation(s)
- Hai-Yan Dang
- College of Chemistry, Beijing Normal University , Beijing 100875, China
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36
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Zheng C, Yao W, Zhang Y, Ma C. Chiral Spirooxindole–Butenolide Synthesis through Asymmetric N-Heterocyclic Carbene-Catalyzed Formal (3 + 2) Annulation of 3-Bromoenals and Isatins. Org Lett 2014; 16:5028-31. [DOI: 10.1021/ol502365r] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Chenguang Zheng
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Weijun Yao
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Yucheng Zhang
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
| | - Cheng Ma
- Department of Chemistry, Zhejiang University, 20 Yugu Road, Hangzhou 310027, China
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37
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Liu K, Hovey MT, Scheidt KA. A Cooperative N-Heterocyclic Carbene/Palladium Catalysis System. Chem Sci 2014; 5:4026-4031. [PMID: 25364496 DOI: 10.1039/c4sc01536c] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
N-heterocyclic carbenes (NHC) have been extensively studied as organocatalysts and ligands for transition metals, but the successful integration of NHCs and late transition metals in cooperative catalysis remains an underexplored area. We have developed a cooperative palladium-catalyzed allylation of NHC-activated aldehydes to access a variety of 3-allyl dihydrocoumarin derivatives. Kinetic experiments support a cooperative pathway for this transformation.
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Affiliation(s)
- Kun Liu
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - M Todd Hovey
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
| | - Karl A Scheidt
- Department of Chemistry, Center for Molecular Innovation and Drug Discovery, Chemistry of Life Processes Institute, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA
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38
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Lee A, Scheidt KA. A cooperative N-heterocyclic carbene/chiral phosphate catalysis system for allenolate annulations. Angew Chem Int Ed Engl 2014; 53:7594-8. [PMID: 24895280 PMCID: PMC4142640 DOI: 10.1002/anie.201403446] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 04/08/2014] [Indexed: 11/09/2022]
Abstract
The highly enantioselective NHC-catalyzed [3+2] annulation reaction with α,β-alkynals and α-ketoesters has been developed. A new mode of cooperative catalysis involving the combination of a chiral Brønsted acid and a C1-symmetric biaryl saturated-imidazolium precatalyst was required to generate the desired γ-crotonolactones in high yields and levels of enantioselectivity.
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Affiliation(s)
- Anna Lee
- Department of Chemistry Center for Molecular Innovation and Drug Discovery Northwestern University 2145 Sheridan Road, Evanston, IL 60208 (USA)
| | - Karl A. Scheidt
- Department of Chemistry Center for Molecular Innovation and Drug Discovery Northwestern University 2145 Sheridan Road, Evanston, IL 60208 (USA)
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39
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Ma N, Yao Y, Zhao BX, Wang Y, Ye WC, Jiang S. Total synthesis of securinega alkaloids (−)-norsecurinine, (−)-niruroidine and (−)-flueggine A. Chem Commun (Camb) 2014; 50:9284-7. [DOI: 10.1039/c4cc02575j] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Lee A, Scheidt KA. A Cooperative N-Heterocyclic Carbene/Chiral Phosphate Catalysis System for Allenolate Annulations. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403446] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Kato T, Matsuoka SI, Suzuki M. Cooperative N-heterocyclic carbene/Brønsted acid catalysis for the tail-to-tail (co)dimerization of methacrylonitrile. J Org Chem 2014; 79:4484-91. [PMID: 24773333 DOI: 10.1021/jo500514e] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The first tail-to-tail dimerization of methacrylonitrile (MAN) has been realized by the cooperative use of N-heterocyclic carbene (NHC) and Brønsted acid catalysts, producing 2,5-dimethylhex-2-enedinitrile with the E/Z ratio of 24:76. Although the NHC alone was not effective for the catalysis, the addition of alcohols resulted in the significant increase of the dimer yield up to 82% in the presence of 5 mol % NHC. Detailed experimental studies including the ESI-MS analysis of the intermediates, stoichiometric (co)dimerizations, and deuterium-labeling experiments revealed the mechanistic aspects of the proton transfer, isomerization, umpolung, and rate-limiting steps, allowing us to observe several mechanistic differences between the dimerization of MAN and that of methyl methacrylate. The stoichiometric reactions in the presence and absence of an alcohol suggest that the alcohol additives play a role in promoting the intermolecular proton transfers from the deoxy-Breslow intermediate to the regenerated NHC in the second half of the catalytic cycle. In addition, the codimerizations of MAN with n-butyl methacrylate (n-BuMA) have been studied. While the dimerization of n-BuMA was sluggish in the presence of an alcohol, the catalytic activity for the codimerization was enhanced by the cooperative systems.
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Affiliation(s)
- Terumasa Kato
- Department of Materials Science and Engineering, Graduate School of Engineering, Nagoya Institute of Technology , Gokiso-cho, Showa-ku, Nagoya, Aichi 466-8555, Japan
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42
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Zhang Y, Lu Y, Tang W, Lu T, Du D. Cooperative N-heterocyclic carbene (NHC)–Lewis acid-mediated regioselective umpolung formal [3 + 2] annulations of alkynyl aldehydes with isatins. Org Biomol Chem 2014; 12:3009-15. [DOI: 10.1039/c4ob00145a] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
A novel synthesis of spirooxindoles has been developed by cooperative NHC–Lewis acid-mediated formal [3 + 2] annulations of alkynyl aldehydes with isatins.
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Affiliation(s)
- Yu Zhang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing, P. R. China
| | - Yingyan Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing, P. R. China
| | - Weifang Tang
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing, P. R. China
| | - Tao Lu
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing, P. R. China
| | - Ding Du
- State Key Laboratory of Natural Medicines
- Department of Organic Chemistry
- China Pharmaceutical University
- Nanjing, P. R. China
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43
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Han R, Qi J, Gu J, Ma D, Xie X, She X. N-Heterocyclic Carbene-Catalyzed Formal [3+2] Annulation of Alkynyl Aldehydes with Nitrosobenzenes: A Highly Regioselective Umpolung Strategy. ACS Catal 2013. [DOI: 10.1021/cs400602v] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Runfeng Han
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jing Qi
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jixiang Gu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Donghui Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xingang Xie
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Xuegong She
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry
and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
- State Key Laboratory for Oxo Synthesis
and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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44
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The Chemical RecordLectureship: S. A. Snyder / Edward W. Morley Medal: P. Wipf / Chemical Engineering Medal: F. Schüth / Bohlmann-Vorlesung: D. Milstein / William H. Nichols Medal Award: R. Eisenberg. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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45
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The Chemical RecordLectureship: S. A. Snyder / Edward W. Morley Medal: P. Wipf / Chemical Engineering Medal: F. Schüth / Bohlmann Lectureship: D. Milstein / William H. Nichols Medal Award: R. Eisenberg. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/anie.201306293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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46
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Smith MW, Snyder SA. A Concise Total Synthesis of (+)-Scholarisine A Empowered by a Unique C–H Arylation. J Am Chem Soc 2013; 135:12964-7. [DOI: 10.1021/ja406546k] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Myles W. Smith
- Department of Chemistry, Columbia University, Havemeyer Hall, 3000 Broadway,
New York, New York 10027, United
States
| | - Scott A. Snyder
- Department of Chemistry, Columbia University, Havemeyer Hall, 3000 Broadway,
New York, New York 10027, United
States
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