1
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Wang K, Zhou W, Jia J, Ye J, Yuan M, Yang J, Qi Y, Chen R. Substrate-Controlled Diversity-Oriented Synthesis of Novel Polycyclic Frameworks via [4 + 2] and [3 + 2] Annulations of Ninhydrin-Derived MBH Adducts with 3,4-Dihydroisoquinolines. Molecules 2023; 28:6761. [PMID: 37836604 PMCID: PMC10574269 DOI: 10.3390/molecules28196761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Substrate-controlled diversity-oriented synthesis of polycyclic frameworks via [4 + 2] and [3 + 2] annulations between ninhydrin-derived Morita-Baylis-Hillman (MBH) adducts and 3,4-dihydroisoquinolines under similar reaction conditions have been developed. The reaction provides diversity-oriented synthesis of a series of novel and structurally complex spiro multi heterocyclic skeletons in good yields (up to 87% and 90%, respectively) with excellent diastereoselectivities (up to >25:1 dr). In particular, the switchable [4 + 2] and [3 + 2] annulation reactions are controlled by tuning the hydroxyl protecting group on the ninhydrin-derived MBH adduct to deliver structural diverse spiro[indene-2,2'-[1,3]oxazino[2,3-a]isoquinoline] and spiro[indene-2,1'-pyrrolo[2,1-a]isoquinoline], respectively. Furthermore, the relative configuration and chemical structure of two kinds of cycloadducts were confirmed through X-ray diffraction analysis.
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Affiliation(s)
- Kaikai Wang
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Wenwen Zhou
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Jun Jia
- Jilin Province Product Quality Supervision and Inspection Institute, Changchun 130012, China;
| | - Junwei Ye
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Mengxin Yuan
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Jie Yang
- School of Chemistry & Materials Engineering, Xinxiang University, Xinxiang 453000, China
| | - Yonghua Qi
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
| | - Rongxiang Chen
- School of Pharmacy, Xinxiang University, Xinxiang 453000, China; (K.W.); (W.Z.); (J.Y.); (M.Y.); (Y.Q.)
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2
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Han J, Yang Y, Gong Y, Tang X, Tian Y, Li B. Divergent access to 5,6,7-perifused cycles. Nat Commun 2023; 14:5148. [PMID: 37620317 PMCID: PMC10449863 DOI: 10.1038/s41467-023-40801-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 08/10/2023] [Indexed: 08/26/2023] Open
Abstract
Nitrogen-containing heterocycles are the key components in many pharmaceuticals and functional materials. In this study, we report a transition metal-catalyzed high-order reaction sequence for synthesizing a structurally unique N-center 5,6,7-perifused cycle (NCPC). The key characteristics include the formation of a seven-membered ring by the 8π electrocyclization of various alkenes and aromatic heterocycles as π-components, in which metal carbene species are generated that further induce the cleavage of the α-C-H or -C-C bond. Specifically, the latter can react with various nucleophilic reagents containing -O, -S, -N, and -C. The stereo-controlled late-stage modification of some complicated pharmaceuticals indicates the versatility of this protocol.
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Affiliation(s)
- Jingpeng Han
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Yongjian Yang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Yingjian Gong
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Xuan Tang
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Yi Tian
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China
| | - Baosheng Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, 400044, Chongqing, P. R. China.
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3
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Liang G, Anderson EA. Sequencing palladium-catalyzed cycloisomerization cascades in a synthesis of the gelsemine core. Chem Sci 2023; 14:6970-6974. [PMID: 37389268 PMCID: PMC10306092 DOI: 10.1039/d3sc01353g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Accepted: 06/05/2023] [Indexed: 07/01/2023] Open
Abstract
Transition metal-catalyzed cycloisomerization is a powerful strategy for the construction of cyclic organic molecules, and the use of palladium catalysts can deliver a wide range of monocyclic and bicyclic products. However, applications of cycloisomerizations in complex target synthesis in which more than one cycloisomerization process is deployed in a cascade context are rare. Here we report investigations of the relative rates of two different types of ene-ynamide cycloisomerization that form fused and spirocyclic rings, and use of these results to design a sequence-controlled cascade cycloisomerization that prepares the tetracyclic core of gelsemine in a single step. Crucial to this work was an evaluation of the kinetics of each cycloisomerization in competition experiments, which revealed a key influence of the ynamide electron-withdrawing group on the cycloisomerization reaction.
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Affiliation(s)
- Guoduan Liang
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
| | - Edward A Anderson
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford 12 Mansfield Road Oxford OX1 3TA UK
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4
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Nikbakht A, Ebrahimi Valdani A, Zahedian Tejeneki H, Abbasi Kejani A, Alavijeh NS, Bauer F, Darvish F, Breit B, Balalaie S. A Diastereoselective Cascade Annulation Approach to Bridged Polycyclic Heterocycles Involving an Unexpected Rearrangement. Org Lett 2023; 25:16-20. [PMID: 36542429 DOI: 10.1021/acs.orglett.2c03629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A diastereoselective cascade annulation between allenoates and in-situ generated isoquinoline N-oxides generating sp3-rich bridged polycyclic heterocycles is disclosed. The reaction proceeds through an unprecedented non-rearomatized rearrangement and allows access to a broad range of bridged heterocycles in 38-93% yields with excellent functional group tolerance and high diastereoselectivity. Density functional theory calculations provided key insights into the possible reaction pathway and the stereoselectivity of this procedure.
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Affiliation(s)
- Ali Nikbakht
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697-64499, Iran
| | - Ahmadreza Ebrahimi Valdani
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697-64499, Iran
| | - Hossein Zahedian Tejeneki
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697-64499, Iran
| | - Alireza Abbasi Kejani
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697-64499, Iran
| | - Nahid S Alavijeh
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697-64499, Iran
| | - Felix Bauer
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Fatemeh Darvish
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697-64499, Iran
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg im Breisgau, Germany
| | - Saeed Balalaie
- Peptide Chemistry Research Center, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran 19697-64499, Iran.,Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah 6715847141, Iran
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5
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Kang M, Jiang S, Liu Y, Wei K, Liu P, Yang X, Pei M, Zhang G. A new “off-on-off” Schiff base from quinoline and thiophene as a fluorescent sensor for sequential monitoring Ga3+ and Pd2+. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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6
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Wang JS, Zhang J, Wang S, Ying J, Li CY, Wu XF. Palladium-catalyzed domino carbonylative cyclization to access functionalized heterocycles. J Catal 2022. [DOI: 10.1016/j.jcat.2022.09.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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7
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Rossolini T, Das A, Nicolai S, Waser J. Pd(II)-Catalyzed Aminoacetoxylation of Alkenes Via Tether Formation. Org Lett 2022; 24:5068-5072. [PMID: 35816449 PMCID: PMC9490825 DOI: 10.1021/acs.orglett.2c01838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
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A Pd-catalyzed method based on the use of a molecular
tether is
described for olefin difunctionalization. Enabled by an easily introduced
trifluoroacetaldehyde-derived tether, a simultaneous introduction
of oxygen and nitrogen heteroatoms across unsaturated carbon–carbon
bonds was achieved under oxidative conditions, most probably via high-valent
Pd intermediates. Good yields and high diastereoselectivity were obtained
with aryl-substituted alkenes, whereas nonterminal alkyl-substituted
olefins gave aza-Heck products. Tether cleavage under mild conditions
provided fast access to functionalized β-amino alcohols.
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Affiliation(s)
- Thomas Rossolini
- Laboratory of Catalysis and Organic Synthesis and National Centre of Competence in Research Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federale de Lausanne, EPFL, 1015 Lausanne, Switzerland
| | - Ashis Das
- Laboratory of Catalysis and Organic Synthesis and National Centre of Competence in Research Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federale de Lausanne, EPFL, 1015 Lausanne, Switzerland
| | - Stefano Nicolai
- Laboratory of Catalysis and Organic Synthesis and National Centre of Competence in Research Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federale de Lausanne, EPFL, 1015 Lausanne, Switzerland
| | - Jérôme Waser
- Laboratory of Catalysis and Organic Synthesis and National Centre of Competence in Research Catalysis, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federale de Lausanne, EPFL, 1015 Lausanne, Switzerland
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8
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Copper Catalyzed Oxidative Cascade Double Cyclization of 2‐Iodobenzamide Derivatives and Propargyl dicarbonyl Compounds for Accessing 3‐Hydroxy‐3‐furylisoindolinone derivatives. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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9
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Umakoshi Y, Takemoto Y, Tsubouchi A, Zhdankin VV, Yoshimura A, Saito A. Dehydrogenative Cycloisomerization/Arylation Sequence of
N
‐Propargyl Carboxamides with Arenes by Iodine(III)‐Catalysis. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yuki Umakoshi
- Division of Applied Chemistry Institute of Engineering Tokyo University of Agriculture and Technology Koganei Tokyo 184-8588 Japan
| | - Yusuke Takemoto
- Division of Applied Chemistry Institute of Engineering Tokyo University of Agriculture and Technology Koganei Tokyo 184-8588 Japan
| | - Akira Tsubouchi
- Division of Applied Chemistry Institute of Engineering Tokyo University of Agriculture and Technology Koganei Tokyo 184-8588 Japan
| | - Viktor V. Zhdankin
- Department of Chemistry and Biochemistry University of Minnesota Duluth MN 55812 USA
| | - Akira Yoshimura
- Department of Chemistry and Biochemistry University of Minnesota Duluth MN 55812 USA
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University, postCode/>634050 Tomsk Russia
| | - Akio Saito
- Division of Applied Chemistry Institute of Engineering Tokyo University of Agriculture and Technology Koganei Tokyo 184-8588 Japan
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10
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An Approach toward 17-Arylsubstituted Marginatafuran-Type Isospongian Diterpenoids via a Palladium-Catalyzed Heck-Suzuki Cascade Reaction of 16-Bromolambertianic Acid. Molecules 2022; 27:molecules27092643. [PMID: 35565994 PMCID: PMC9102694 DOI: 10.3390/molecules27092643] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/18/2022] [Accepted: 04/19/2022] [Indexed: 02/06/2023] Open
Abstract
Isospongian diterpenes are a small but growing family of natural tetracyclic secondary metabolites isolated from marine organisms, primarily sponges and nudibranchs. A palladium-catalyzed domino Heck–Suzuki reaction sequence for the synthesis of the tetracyclic skeleton of marginatafuran-type isospongian diterpenoids with a wide variety of substituents in the C-17 position is reported. The proposed approach was based on selective transformations of the accessible plant diterpenoid lambertianic acid and includes an intramolecular Heck reaction of 16-bromolambertianic and arylation of the palladium intermediate with arylboronic acid. The influence of the nature of the substituent both in arylboronic acids and in the furan ring of 16-bromolambertianic acid on the direction and chemoselectivity of the reaction has been studied. The described derivatization of natural furanolabdanoid lambertianic acid produced new functionalized molecules for biological study and gave novel insights into the reactivity of complex molecular structures.
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11
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Manjón‐Mata I, Quirós MT, Velasco‐Juárez E, Buñuel E, Cárdenas DJ. Nickel‐Catalyzed Hydroborylative Polycyclization of Allenynes: an Atom‐Economical and Diastereoselective Synthesis of Bicyclic 5‐5 Fused Rings. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Inés Manjón‐Mata
- Department of Organic Chemistry Facultad de Ciencias Universidad Autónoma de Madrid Institute for Advanced Research in Chemical Sciences (IAdChem) Avd. Francisco Tomás y Valiente 7, Campus de Cantoblanco 28049 Madrid Spain
| | - M. Teresa Quirós
- Department of Organic Chemistry and Inorganic Chemistry Facultad de Farmacia Universidad de Alcalá Campus Universitario. Ctra. Madrid-Barcelona, Km. 33,600. Alcalá de Henares 28871 Madrid Spain
| | - Elena Velasco‐Juárez
- Department of Organic Chemistry Facultad de Ciencias Universidad Autónoma de Madrid Institute for Advanced Research in Chemical Sciences (IAdChem) Avd. Francisco Tomás y Valiente 7, Campus de Cantoblanco 28049 Madrid Spain
| | - Elena Buñuel
- Department of Organic Chemistry Facultad de Ciencias Universidad Autónoma de Madrid Institute for Advanced Research in Chemical Sciences (IAdChem) Avd. Francisco Tomás y Valiente 7, Campus de Cantoblanco 28049 Madrid Spain
| | - Diego J. Cárdenas
- Department of Organic Chemistry Facultad de Ciencias Universidad Autónoma de Madrid Institute for Advanced Research in Chemical Sciences (IAdChem) Avd. Francisco Tomás y Valiente 7, Campus de Cantoblanco 28049 Madrid Spain
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12
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Lin HS, Pan YZ, Tian YH, Pan YM, Wang X. Palladium‐Catalyzed Tandem Cyclization of 2‐(2 Ethynylphenyl)acetonitriles and Isocyanides: Access to Indeno[2,1‐b]pyrroles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hui-Shu Lin
- Guangxi University of Science and Technology CHINA
| | | | - Yu-Hong Tian
- Guangxi University of Science and Technology CHINA
| | - Ying-ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources CHINA
| | - Xu Wang
- Guangxi University of Science and Technology CHINA
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13
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Zhou PX, Yang X, Du X, Zhao S, Wang H, Tan X, Wang J, Liang YM. Pd-Catalyzed alkynyl aryl iodide cyclization/alkylation with cyclobutanols. Org Chem Front 2022. [DOI: 10.1039/d2qo00180b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed cis-selective carboalkylation of internal alkynes with cyclobutanols is reported, providing a useful and facile approach to alkyl-substituted olefins with moderate to good yields and excellent stereoselectivity.
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Affiliation(s)
- Ping-Xin Zhou
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Xiaozhe Yang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Xueyan Du
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Shujie Zhao
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Han Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Xinqiang Tan
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Jia Wang
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, China
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14
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Wang DC, Cheng PP, Yang TT, Wu PP, Qu GR, Guo HM. Asymmetric Domino Heck/Dearomatization Reaction of β-Naphthols to Construct Indole-Terpenoid Frameworks. Org Lett 2021; 23:7865-7872. [PMID: 34582193 DOI: 10.1021/acs.orglett.1c02881] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A palladium-catalyzed enantioselective Heck cyclization/dearomatization cascade via capturing the cyclized Heck π-allylpalladium intermediate by β-naphthols is reported, which provides a new strategy for the construction of chiral indole-terpenoid frameworks. This method affords indole-functionalized β-naphthalenone compounds bearing an all-carbon-substituted quaternary chiral center in excellent yields (up to 92%) and enantioselectivities (up to 94% ee). In addition, the utility of this method is showcased by the gram-scale syntheses and diverse transformations of the dearomatized products.
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Affiliation(s)
- Dong-Chao Wang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Peng-Peng Cheng
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Ting-Ting Yang
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Pan-Pan Wu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Gui-Rong Qu
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
| | - Hai-Ming Guo
- NMPA Key Laboratory for Research and Evaluation of Innovative Drug, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China
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15
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Li J, Lin Z, He D, Wu W, Jiang H. Palladium‐Catalyzed
Sequential Cyclization/Functionalization of Oxime Ethers with Unactivated Vinyl Ethers for Tunable Assembly of Structurally Diverse Isoxazoles. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100482] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou Guangdong 510640 China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates South China University of Technology Guangzhou Guangdong 510640 China
| | - Zidong Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou Guangdong 510640 China
| | - Dan He
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou Guangdong 510640 China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou Guangdong 510640 China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering South China University of Technology Guangzhou Guangdong 510640 China
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16
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Thirupataiah B, Reddy GS, Mounika G, Kumar JS, Hossain KA, Mudgal J, Mathew JE, Shenoy GG, Rajadurai M, Parsa KVL, Pal M. Pd-catalysed general access to 7-membered N/O-heterocyclic compounds as potential agents against inflammation. Chem Commun (Camb) 2021; 57:10091-10094. [PMID: 34515287 DOI: 10.1039/d1cc04140a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A Pd-catalysed regioselective synthesis of 4,5-disubstituted 7-membered N/O-heterocycles was achieved via the 7-endo-dig cyclization followed by C-C bond formation of 2-(1-alkynyl)phenylacetamide. The ligand/additive free cascade reaction proceeded in the presence of PdCl2 in aqueous MeCN when the separate and individual use of methyl vinyl ketone and allyl bromide generally afforded an O- and N-heterocycle, respectively. The pharmacological assay was performed to identify the first example of a 1H-benzo[d]azepin-2(3H)-one based novel inhibitor of PDE4B.
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Affiliation(s)
- B Thirupataiah
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India. .,Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Gangireddy Sujeevan Reddy
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India. .,Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Guntipally Mounika
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India.
| | - Jetta Sandeep Kumar
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India. .,Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Kazi Amirul Hossain
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India.
| | - Jayesh Mudgal
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Jessy E Mathew
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Gautham G Shenoy
- Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Madhav Nagar, Manipal 576 104, Karnataka, India
| | - Marina Rajadurai
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India.
| | - Kishore V L Parsa
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India.
| | - Manojit Pal
- Dr. Reddy's Institute of Life Sciences, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, India.
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17
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Jones BT, García-Cárceles J, Caiger L, Hazelden IR, Lewis RJ, Langer T, Bower JF. Complex Polyheterocycles and the Stereochemical Reassignment of Pileamartine A via Aza-Heck Triggered Aryl C-H Functionalization Cascades. J Am Chem Soc 2021; 143:15593-15598. [PMID: 34546043 PMCID: PMC8485351 DOI: 10.1021/jacs.1c08615] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
![]()
Structurally complex
benzo- and spiro-fused N-polyheterocycles
can be accessed via intramolecular Pd(0)-catalyzed alkene 1,2-aminoarylation
reactions. The method uses N-(pentafluorobenzoyloxy)carbamates
as the initiating motif, and this allows aza-Heck-type alkene amino-palladation
in advance of C–H palladation of the aromatic component. The
chemistry is showcased in the first total synthesis of the complex
alkaloid (+)-pileamartine A, which has resulted in the reassignment
of its absolute stereochemistry.
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Affiliation(s)
- Benjamin T Jones
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | | | - Lewis Caiger
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - Ian R Hazelden
- School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom
| | - Richard J Lewis
- Department of Medicinal Chemistry, Research and Early Development, Respiratory and Immunology, BioPharmaceuticals R&D, AstraZeneca, SE 43183 Mölndal, Sweden
| | - Thomas Langer
- Chemical Development, Pharmaceutical Technology & Development, Operations, Astra Zeneca, Charter Way, Macclesfield, SK10 2NA, United Kingdom
| | - John F Bower
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool, L69 7ZD, United Kingdom
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18
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Whyte A, Bajohr J, Arora R, Torelli A, Lautens M. Sequential Pd
0
‐ and Pd
II
‐Catalyzed Cyclizations: Enantioselective Heck and Nucleopalladation Reactions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202106518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Andrew Whyte
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Jonathan Bajohr
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Ramon Arora
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Alexa Torelli
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
| | - Mark Lautens
- Department of Chemistry University of Toronto 80 St. George Street Toronto Ontario M5S 3H6 Canada
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19
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Ghosh S, Chakrabortty R, Ganesh V. Dual Functionalization of Alkynes Utilizing the Redox Characteristics of Transition Metal Catalysts. ChemCatChem 2021. [DOI: 10.1002/cctc.202100838] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Sudipta Ghosh
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
| | - Rajesh Chakrabortty
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
| | - Venkataraman Ganesh
- Department of Chemistry Indian Institute of Technology Kharagpur 721302 West Bengal India
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20
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Sandeep K, Siva Reddy A, Kumara Swamy KC. Palladium-catalysed cyclisation of ynamides and propargyl tethered iodosulfonamides with boronic acids leading to benzosultams. Org Biomol Chem 2021; 19:6871-6882. [PMID: 34323909 DOI: 10.1039/d1ob00925g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient and straightforward Pd-catalysed synthesis of diversely substituted sultams utilising ynamides and boronic acids is disclosed; toluene was found to be the most suitable solvent for this transformation. This strategy has been successfully applied to generate dihydrobenzo[d]isothiazole 1,1-dioxides and dihydro-2H-benzo[e][1,2]thiazine 1,1-dioxides. The advantages of this protocol are good functional group tolerance, broad substrate scope, high-yielding reaction and low catalyst loading to access benzofused sultams with five-/six-membered rings. The synthetic utility has been demonstrated by a gram-scale synthesis. A plausible catalytic cycle involving carbopalladation has been proposed for this transformation.
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Affiliation(s)
- K Sandeep
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
| | - Alla Siva Reddy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
| | - K C Kumara Swamy
- School of Chemistry, University of Hyderabad, Hyderabad 500 046, Telangana, India.
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21
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Whyte A, Bajohr J, Arora R, Torelli A, Lautens M. Sequential Pd 0 - and Pd II -Catalyzed Cyclizations: Enantioselective Heck and Nucleopalladation Reactions. Angew Chem Int Ed Engl 2021; 60:20231-20236. [PMID: 34240542 DOI: 10.1002/anie.202106518] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/29/2021] [Indexed: 12/18/2022]
Abstract
An enantioselective consecutive cyclization/coupling process, catalyzed by palladium is reported. Stereoinduction arises from an enantioselective carbopalladation, generating an intermediate which promotes a nucleopalladation step. The dual cyclization sequence was compatible with a variety of alkyne-tethered oxygen- and nitrogen-centered nucleophiles, and a variety of alkenyl-tethered aryl iodides, to forge numerous bisheterocycles in good yields and high regio- and enantioselectivities.
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Affiliation(s)
- Andrew Whyte
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Jonathan Bajohr
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Ramon Arora
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Alexa Torelli
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Mark Lautens
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
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22
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Cheng C, Zhang Y. Palladium-Catalyzed anti-Carbosilylation of Alkynes to Access Isoquinolinone-Containing Exocyclic Vinylsilanes. Org Lett 2021; 23:5772-5776. [PMID: 34259535 DOI: 10.1021/acs.orglett.1c01931] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A Pd-catalyzed trans-selective carbosilylation reaction of alkynes has been developed. The trans-vinylpalladium species, generated through intramolecular syn-carbopalladation of alkynes and subsequent cis-trans isomerization, were captured by hexamethyldisilane to form multisubstituted vinylsilanes. This reaction provides a useful strategy for the stereoselective synthesis of isoquinolinone-containing exocyclic tetrasubstituted vinylsilanes.
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Affiliation(s)
- Cang Cheng
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University 1239 Siping Road, Shanghai 200092, China
| | - Yanghui Zhang
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University 1239 Siping Road, Shanghai 200092, China
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23
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Vaz B, Martínez C, Cruz F, Denis JG, de Lera ÁR, Aurrecoechea JM, Álvarez R. Palladium-Catalyzed Aminocyclization-Coupling Cascades: Preparation of Dehydrotryptophan Derivatives and Computational Study. J Org Chem 2021; 86:8766-8785. [PMID: 34125552 PMCID: PMC8929666 DOI: 10.1021/acs.joc.1c00636] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Indexed: 12/31/2022]
Abstract
Dehydrotryptophan derivatives have been prepared by palladium-catalyzed aminocyclization-Heck-type coupling cascades starting from o-alkynylaniline derivatives and methyl α-aminoacrylate. Aryl, alkyl (primary, secondary, and tertiary), and alkenyl substituents have been introduced at the indole C-2 position. Further variations at the indole benzene ring, as well as the C-2-unsubstituted case, have all been demonstrated. In the case of C-2 aryl substitution, the preparation of the o-alkynylaniline substrate by Sonogashira coupling and the subsequent cyclization-coupling cascade have been performed in a one-pot protocol with a single catalyst. DFT calculations have revealed significant differences in the reaction profiles of these reactions relative to those involving methyl acrylate or methacrylate, and between the reactions of the free anilines and their corresponding carbamates. Those calculations suggest that the nature of the alkene and of the acid HX released in the HX/alkene exchange step that precedes C-C bond formation could be responsible for the experimentally observed differences in reaction efficiencies.
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Affiliation(s)
- Belén Vaz
- Departamento
de Química Orgánica, Facultad de Química (CINBIO)
and Instituto de Investigación Biomédica de Vigo (IBIV), Universidade de Vigo, Lagoas-Marcosende, 36310 Vigo, Spain
| | - Claudio Martínez
- Departamento
de Química Orgánica, Facultad de Química (CINBIO)
and Instituto de Investigación Biomédica de Vigo (IBIV), Universidade de Vigo, Lagoas-Marcosende, 36310 Vigo, Spain
| | - Francisco Cruz
- Departamento
de Química Orgánica, Facultad de Química (CINBIO)
and Instituto de Investigación Biomédica de Vigo (IBIV), Universidade de Vigo, Lagoas-Marcosende, 36310 Vigo, Spain
| | - J. Gabriel Denis
- Departamento
de Química Orgánica, Facultad de Química (CINBIO)
and Instituto de Investigación Biomédica de Vigo (IBIV), Universidade de Vigo, Lagoas-Marcosende, 36310 Vigo, Spain
| | - Ángel R. de Lera
- Departamento
de Química Orgánica, Facultad de Química (CINBIO)
and Instituto de Investigación Biomédica de Vigo (IBIV), Universidade de Vigo, Lagoas-Marcosende, 36310 Vigo, Spain
| | - José M. Aurrecoechea
- Departamento
de Química Orgánica e Inorgánica, Facultad de
Ciencia y Tecnología, Universidad
del País Vasco UPV/EHU, Apartado 644, 48080 Bilbao, Spain
| | - Rosana Álvarez
- Departamento
de Química Orgánica, Facultad de Química (CINBIO)
and Instituto de Investigación Biomédica de Vigo (IBIV), Universidade de Vigo, Lagoas-Marcosende, 36310 Vigo, Spain
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24
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Dunås P, Paterson AJ, Kociok-Köhn G, Rahm M, Lewis SE, Kann N. Palladium-catalyzed stereoselective domino arylation-acylation: an entry to chiral tetrahydrofluorenone scaffolds. Chem Commun (Camb) 2021; 57:6518-6521. [PMID: 34105551 DOI: 10.1039/d1cc02160e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed domino arylation-cyclization of biocatalytically derived cyclic 1,3-dienes is demonstrated. The reaction introduces a high degree of structural complexity in a single step, giving access to tricyclic tetrahydrofluorenones with full regio- and stereoselectivity. The transformation proceeds through a novel acylation-terminated Heck-type sequence, and quantum chemical calculations indicate that C-H activation is involved in the terminating acylation step.
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Affiliation(s)
- Petter Dunås
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
| | - Andrew J Paterson
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
| | - Gabriele Kociok-Köhn
- Materials and Chemical Characterization Facility, Convocation Avenue, University of Bath, Bath, BA2 7AY, UK
| | - Martin Rahm
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
| | - Simon E Lewis
- Centre for Sustainable Circular Technologies, Convocation Avenue, University of Bath, Bath, BA2 7AY, UK. and Department of Chemistry, Convocation Avenue, University of Bath, Bath, BA2 7AY, UK
| | - Nina Kann
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, SE-41296 Gothenburg, Sweden.
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25
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Knowles JP, Steeds HG, Schwarz M, Latter F, Booker-Milburn KI. Pd-Catalyzed Cascade Reactions of Aziridines: One-Step Access to Complex Tetracyclic Amines. Org Lett 2021; 23:4986-4990. [PMID: 34132553 PMCID: PMC8289308 DOI: 10.1021/acs.orglett.1c01403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Indexed: 11/29/2022]
Abstract
The combination of palladium catalysis and thermal cycloaddition is shown to transform tricyclic aziridines into complex, stereodefined tetracyclic products in a single step. This highly unusual cascade process involves a diverted Tsuji-Trost sequence leading to a surprisingly facile intramolecular Diels-Alder reaction. The starting materials are accessible on multigram scales from the photochemical rearrangement of simple pyrroles. The tetracyclic amine products can be further elaborated through routine transformations, highlighting their potential as scaffolds for medicinal chemistry.
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Affiliation(s)
- Jonathan P. Knowles
- Department
of Applied Sciences, Northumbria University, Newcastle upon Tyne NE1
8ST, U.K.
| | - Hannah G. Steeds
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
| | - Maria Schwarz
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
| | - Francesca Latter
- School
of Chemistry, University of Bristol, Cantock’s Close, Bristol BS8 1TS, U.K.
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26
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Shukla RK, Chaturvedi AK, Volla CMR. Catalytic Cascade Cyclization and Regioselective Hydroheteroarylation of Unactivated Alkenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01234] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Rahul K. Shukla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Atul K. Chaturvedi
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Chandra M. R. Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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27
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Cai Y, Zhu W, Zhao S, Dong C, Xu Z, Zhao Y. Difluorocarbene-Mediated Cascade Cyclization: The Multifunctional Role of Ruppert-Prakash Reagent. Org Lett 2021; 23:3546-3551. [PMID: 33913711 DOI: 10.1021/acs.orglett.1c00962] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A difluorocarbene-mediated cascade cyclization reaction for rapid access to gem-difluorinated 3-coumaranone derivatives was developed. The difluorocarbene acts as a bipolar CF2 building block, which enables a homologation cyclization process via sequentially reacting with the phenolate and the ester group on the same substrate. The potential application of this synthetic approach is demonstrated by a late-stage modification of diethylstilbestrol. Mechanistic studies revealed the multiple crucial roles played by the Ruppert-Prakash reagent.
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Affiliation(s)
- Yanyao Cai
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Wenjie Zhu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Shujuan Zhao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Chanjuan Dong
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Zhenchuang Xu
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
| | - Yanchuan Zhao
- Key Laboratory of Organofluorine Chemistry, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China.,Key Laboratory of Energy Regulation Materials, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Ling-Ling Road, Shanghai 200032, China
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28
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Mondal S, Ballav T, Biswas K, Ghosh S, Ganesh V. Exploiting the Versatility of Palladium Catalysis: A Modern Toolbox for Cascade Reactions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100312] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Sourav Mondal
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Tamal Ballav
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Krishna Biswas
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Suman Ghosh
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
| | - Venkataraman Ganesh
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721 302 West Bengal India
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29
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Nechaev AA, Jagtap PR, BaŽíková E, Neumannová J, Císařová I, Matoušová E. Synthesis of fused 1,2-naphthoquinones with cytotoxic activity using a one-pot three-step reaction. Org Biomol Chem 2021; 19:3434-3440. [PMID: 33899892 DOI: 10.1039/d1ob00205h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A method for the synthesis of fused 1,2-naphthoquinones, as analogues of biologically active natural terpene quinones, is described. The intermediate polycyclic naphthalenes were prepared by a one-pot palladium-catalysed process from simple alkynes, one of which was made from an optically pure biomass-derived levoglucosenone. The prepared methoxy-substituted naphthalenes were subsequently transformed in one step to 1,2-naphthoquinones by a trivalent-iodine-mediated oxidation. The naphthoquinone products were found to have cytotoxic properties.
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Affiliation(s)
- Anton A Nechaev
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Praha 2, Czech Republic.
| | - Pratap R Jagtap
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Praha 2, Czech Republic.
| | - Ema BaŽíková
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Praha 2, Czech Republic.
| | - Johana Neumannová
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Praha 2, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Praha 2, Czech Republic
| | - Eliška Matoušová
- Department of Organic Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 00 Praha 2, Czech Republic.
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30
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Barbolla I, Hernández-Suárez L, Quevedo-Tumailli V, Nocedo-Mena D, Arrasate S, Dea-Ayuela MA, González-Díaz H, Sotomayor N, Lete E. Palladium-mediated synthesis and biological evaluation of C-10b substituted Dihydropyrrolo[1,2-b]isoquinolines as antileishmanial agents. Eur J Med Chem 2021; 220:113458. [PMID: 33901901 DOI: 10.1016/j.ejmech.2021.113458] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/12/2021] [Accepted: 04/05/2021] [Indexed: 11/26/2022]
Abstract
The development of new molecules for the treatment of leishmaniasis is, a neglected parasitic disease, is urgent as current anti-leishmanial therapeutics are hampered by drug toxicity and resistance. The pyrrolo[1,2-b]isoquinoline core was selected as starting point, and palladium-catalyzed Heck-initiated cascade reactions were developed for the synthesis of a series of C-10 substituted derivatives. Their in vitro leishmanicidal activity against visceral (L. donovani) and cutaneous (L. amazonensis) leishmaniasis was evaluated. The best activity was found, in general, for the 10-arylmethyl substituted pyrroloisoquinolines. In particular, 2ad (IC50 = 3.30 μM, SI > 77.01) and 2bb (IC50 = 3.93 μM, SI > 58.77) were approximately 10-fold more potent and selective than the drug of reference (miltefosine), against L. amazonensis on in vitro promastigote assays, while 2ae was the more active compound in the in vitro amastigote assays (IC50 = 33.59 μM, SI > 8.93). Notably, almost all compounds showed low cytotoxicity, CC50 > 100 μg/mL in J774 cells, highest tested dose. In addition, we have developed the first Perturbation Theory Machine Learning (PTML) algorithm able to predict simultaneously multiple biological activity parameters (IC50, Ki, etc.) vs. any Leishmania species and target protein, with high values of specificity (>98%) and sensitivity (>90%) in both training and validation series. Therefore, this model may be useful to reduce time and assay costs (material and human resources) in the drug discovery process.
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Affiliation(s)
- Iratxe Barbolla
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad Del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080, Bilbao, Spain
| | - Leidi Hernández-Suárez
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad Del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080, Bilbao, Spain
| | - Viviana Quevedo-Tumailli
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad Del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080, Bilbao, Spain; RNASA-IMEDIR, Computer Science Faculty, University of A Coruña, 15071, A Coruña, Spain; Universidad Estatal Amazónica UEA, Puyo, 160150, Pastaza, Ecuador
| | - Deyani Nocedo-Mena
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad Del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080, Bilbao, Spain
| | - Sonia Arrasate
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad Del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080, Bilbao, Spain
| | - María Auxiliadora Dea-Ayuela
- Departamento de Farmacia, Facultad de Ciencias de La Salud, Universidad CEU Cardenal Herrera, Edificio Seminario S/n, 46113, Moncada, Valencia, Spain
| | - Humberto González-Díaz
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad Del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080, Bilbao, Spain; Basque Center for Biophysics CSIC-UPV/EHU, University of the Basque Country UPV/EHU, 48940, Bilbao, Spain; IKERBASQUE, Basque Foundation for Science, 48011, Bilbao, Spain.
| | - Nuria Sotomayor
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad Del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080, Bilbao, Spain.
| | - Esther Lete
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad Del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080, Bilbao, Spain.
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31
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Sharma A, Dutta D, Gogoi P. A palladium-catalyzed cascade process for spirooxindole: an alternative way for the synthesis of spiro(indoline-3,2'-quinazolin)-2-ones. Org Biomol Chem 2021; 19:1795-1806. [PMID: 33559666 DOI: 10.1039/d0ob02580a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A palladium-catalyzed cascade strategy has been developed for one-pot synthesis of functionalized spiro(indoline-3,2'-quinazolin)-2-one derivatives from readily available starting materials. The reaction proceeds via C-C and two C-N bond formations in a single reaction operation. This method offers an attractive pathway for the synthesis of a broad range of spiro(indoline-3,2'-quinazolin)-2-ones in good yields.
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Affiliation(s)
- Abhilash Sharma
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Dhiraj Dutta
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Pranjal Gogoi
- Applied Organic Chemistry Group, Chemical Science and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India. and Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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32
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Sun X, Dong X, Liu H, Liu Y. Recent Progress in Palladium‐Catalyzed Radical Reactions. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001315] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xi Sun
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Xu Dong
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Hui Liu
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Yuying Liu
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
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33
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Motati DR, Amaradhi R, Ganesh T. Recent developments in the synthesis of azaindoles from pyridine and pyrrole building blocks. Org Chem Front 2021. [DOI: 10.1039/d0qo01079k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The azaindole framework is ubiquitous in bioactive natural products and pharmaceuticals. This review highlights the synthetic approaches to azaindoles with advantages and limitations, mechanistic pathways and biological importance.
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Affiliation(s)
- Damoder Reddy Motati
- Department of Pharmacology and Chemical Biology
- Emory School of Medicine
- Atlanta
- USA
| | - Radhika Amaradhi
- Department of Pharmacology and Chemical Biology
- Emory School of Medicine
- Atlanta
- USA
| | - Thota Ganesh
- Department of Pharmacology and Chemical Biology
- Emory School of Medicine
- Atlanta
- USA
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34
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Li J, He D, Lin Z, Wu W, Jiang H. Recent advances in NHC–palladium catalysis for alkyne chemistry: versatile synthesis and applications. Org Chem Front 2021. [DOI: 10.1039/d1qo00111f] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
This review summarizes the recent developments in NHC–palladium catalysis for alkyne chemistry: versatile synthesis and applications.
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Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Dan He
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Zidong Lin
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
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35
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Jiang Y, McNamee RE, Smith PJ, Sozanschi A, Tong Z, Anderson EA. Advances in polycyclization cascades in natural product synthesis. Chem Soc Rev 2021; 50:58-71. [DOI: 10.1039/d0cs00768d] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Cascade reactions are among the most powerful means to achieve the construction of multiple ring systems in a single step. This tutorial review describes recent advances in the use of polycyclization cascades in natural product synthesis.
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Affiliation(s)
- Yubo Jiang
- Chemistry Research Laboratory
- Oxford
- UK
- Faculty of Science
- Kunming University of Science and Technology
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36
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Ramesh K, Satyanarayana G. Propargyl alcohols as alkyne sources: Synthesis of heterocyclic compounds under microwave irradiation. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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37
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Sequential catalytic carbonylation reactions for sustainable synthesis of biologically relevant entities. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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38
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A facile approach to hybrid compounds containing a tricyclic diterpenoid and fluorine-substituted heterocycles. J Fluor Chem 2020. [DOI: 10.1016/j.jfluchem.2020.109554] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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Baccalini A, Faita G, Zanoni G, Maiti D. Transition Metal Promoted Cascade Heterocycle Synthesis through C−H Functionalization. Chemistry 2020; 26:9749-9783. [DOI: 10.1002/chem.202001832] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 06/16/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Alessio Baccalini
- Department of Chemistry University of Pavia Viale Taramelli 10 Pavia 27100 Italy
| | - Giuseppe Faita
- Department of Chemistry University of Pavia Viale Taramelli 10 Pavia 27100 Italy
| | - Giuseppe Zanoni
- Department of Chemistry University of Pavia Viale Taramelli 10 Pavia 27100 Italy
| | - Debabrata Maiti
- Department of Chemistry Indian Institute of Technology Bombay Powai, Mumbai 400076 India
- Tokyo Tech World Research Hub Initiative (WRHI), Laboratory for Chemistry and Life Science Tokyo Institute of Technology Tokyo 152-8550 Japan
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40
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Pan C, Wang L, Han J. Palladium-Catalyzed Site-Selective Benzocylization of Aromatic Acids with o-Fluoro-Substituted Diaryliodonium Salts toward 3,4-Benzocoumarins. Org Lett 2020; 22:4776-4780. [DOI: 10.1021/acs.orglett.0c01577] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Cheng Pan
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, China
| | - Limin Wang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, China
| | - Jianwei Han
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, China
- Shanghai−Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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41
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Li Y, Xiong W, Zhang Z, Xu T. Synthesis of Indolizine Derivatives Triggered by the Oxidative Addition of Aroyl Chloride to Pd(0) Complex. J Org Chem 2020; 85:6392-6399. [PMID: 32348132 DOI: 10.1021/acs.joc.0c00161] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An efficient synthesis of indolizine derivatives from propargylic pyridines and aroyl chlorides was developed. The 5-endo-dig cyclization was initiated by the in situ formed acylpalladium species from the facile oxidative addition of aroyl chloride to Pd(0) complex. This transformation successfully occurred in the presence of an N-nucleophilic moiety and acid chlorides, a good electrophilic partner, affording highly functionalized indolizines in good-to-excellent yields.
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Affiliation(s)
- Yahui Li
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Wei Xiong
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Zhifeng Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
| | - Tongyu Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, P. R. China
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42
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Reddy RJ, Kumar JJ, Kumari AH, Krishna GR. Pd‐Catalyzed Annulation of β‐Iodovinyl Sulfones with 2‐Halophenols: A General Route for the Synthesis of 3‐Sulfonyl Benzofuran Derivatives. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901550] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Raju Jannapu Reddy
- Department of Chemistry, University College of ScienceOsmania University Hyderabad 500 007 India
| | - Jangam Jagadesh Kumar
- Department of Chemistry, University College of ScienceOsmania University Hyderabad 500 007 India
| | - Arram Haritha Kumari
- Department of Chemistry, University College of ScienceOsmania University Hyderabad 500 007 India
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43
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Qiu H, Zhou P, Liu W, Zhang J, Chen B. Palladium‐Catalyzed Intermolecular Carbopalladation Cascade: Facile Synthesis of [1,2,3]Triazolo[1,5‐
a
]quinolines from
o
‐Triazole Bromobenzenes and Internal Alkynes. ChemistrySelect 2020. [DOI: 10.1002/slct.201904238] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Huihua Qiu
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
| | - Peng Zhou
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
| | - Weibing Liu
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
| | - Jiantao Zhang
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
| | - Baoning Chen
- College of ChemistryGuangdong University of Petrochemical Technology, Guangdu 2nd road Maoming Guangdong Province 525000 People's Republic of China
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44
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Baghel AS, Jaiswal Y, Kumar A. Pd(II)-Catalyzed One-Pot Multiple C-C Bond Formation: En Route Synthesis of Succinimide-Fused Unsymmetrical 9,10-Dihydrophenanthrenes from Aryl Iodides and Maleimides. Org Lett 2020; 22:1908-1913. [PMID: 32065754 DOI: 10.1021/acs.orglett.0c00255] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An expeditious approach has been developed for the synthesis of succinimide-fused unsymmetrical 9,10-dihydrophenanthrenes from simple aryl iodides and maleimides. The developed transformation, overall proceeding with high regioselectivity via a cascade approach through palladium(II)-catalyzed Micheal-type addition/C-H activation/intramolecular cross-dehydrogenative coupling (ICDC)/C-H activation, allows formation of four fundamental carbon-carbon bonds in one-pot fashion. The reactions tolerate broad functional groups and satisfy the parameters of atom and step economy. Detailed mechanistic studies were carried out to support the proposed synthetic pathway.
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Affiliation(s)
- Akanksha Singh Baghel
- Department of Chemistry, Indian Institute of Technology Patna, Bihta 801106, Bihar, India
| | - Yogesh Jaiswal
- Department of Chemistry, Indian Institute of Technology Patna, Bihta 801106, Bihar, India
| | - Amit Kumar
- Department of Chemistry, Indian Institute of Technology Patna, Bihta 801106, Bihar, India
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45
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46
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Heuson E, Dumeignil F. The various levels of integration of chemo- and bio-catalysis towards hybrid catalysis. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00696c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Hybrid catalysis is an emerging concept that combines chemo- and biocatalysts in a wide variety of approaches. Combining the specifications and advantages of multiple disciplines, it is a very promising way to diversify tomorrow's catalysis.
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Affiliation(s)
- Egon Heuson
- Univ. Lille
- INRA
- ISA
- Univ. Artois
- Univ. Littoral Côte d'Opale
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47
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Karuppasamy M, Vinoth P, Pradeep N, Nagarajan S, Maheswari CU, Sridharan V. Regioselective synthesis of tetrahydroquinolines via syn- and anti-nucleopalladation-initiated cascade processes. Org Biomol Chem 2020; 18:8474-8485. [DOI: 10.1039/d0ob01840f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Regioselective synthesis of tetrahydroquinolines via nucleopalladation-initiated cascade sequences was established.
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Affiliation(s)
- Muthu Karuppasamy
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
| | - Perumal Vinoth
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
| | - N. Pradeep
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
| | - Subbiah Nagarajan
- Department of Chemistry
- National Institute of Technology
- Warangal-506004
- India
| | - C. Uma Maheswari
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
| | - Vellaisamy Sridharan
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
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48
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An insight into the novel covalent functionalization of multi-wall carbon nanotubes with pseudopeptide backbones for palladium nanoparticles immobilization: A versatile catalyst towards diverse cross-coupling reactions in bio-based solvents. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114238] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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49
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2018. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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50
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Li J, Yang S, Wu W, Jiang H. Palladium‐Catalyzed Cascade Cyclization/Alkynylation Reactions. Chem Asian J 2019; 14:4114-4128. [DOI: 10.1002/asia.201901202] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 10/19/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Jianxiao Li
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Shaorong Yang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Wanqing Wu
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong ProvinceSchool of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 China
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