1
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Ma JT, Chen T, Tang BC, Chen XL, Yu ZC, Zhou Y, Zhuang SY, Wu YD, Xiang JC, Wu AX. A Pummerer Reaction-Enabled Modular Synthesis of Alkyl Quinoline-3-carboxylates and 3-Arylquinolines from Amino Acids. J Org Chem 2023; 88:3760-3771. [PMID: 36821870 DOI: 10.1021/acs.joc.2c03034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Concise synthesis of functionalized quinolines has received continuous research attention owing to the biological importance and synthetic potential of bicyclic N-heterocycles. However, synthetic routes to the 2,4-unsubstituted alkyl quinoline-3-carboxylate scaffold, which is an important motif in drug design, remain surprisingly limited, with modular protocols that proceed from readily available materials being even more so. We herein report an acidic I2-DMSO system that converts readily available aspartates and anilines into alkyl quinoline-3-carboxylate. This method can be extended to a straightforward synthesis of 3-arylquinolines by simply replacing the aspartates with phenylalanines. Mechanistic studies revealed that DMSO was activated by HI via a Pummerer reaction to provide the C1 synthon, while the amino acid catabolized to the C2 synthon through I2-mediated Strecker degradation. A formal [3 + 2 + 1] annulation of these two concurrently generated synthons with aniline was responsible for the selective formation of the quinoline core. The synthetic utility of this protocol was illustrated by the efficient synthesis of human 5-HT4 receptor ligand. Moreover, an unprecedented chemoselective synthesis of 2-deuterated, 3-substituted quinoline, featuring this reaction, has been established.
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Affiliation(s)
- Jin-Tian Ma
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Ting Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Bo-Cheng Tang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xiang-Long Chen
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Zhi-Cheng Yu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - You Zhou
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Shi-Yi Zhuang
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Jia-Chen Xiang
- School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - An-Xin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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2
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Jiang B, Zhang S. Synthesis of Quinolines and 2‐Functionalized Quinolines by Difluorocarbene Incorporation. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Ben‐Jie Jiang
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 People's Republic of China
| | - Song‐Lin Zhang
- Key Laboratory of Synthetic and Biological Colloids Ministry of Education School of Chemical and Material Engineering Jiangnan University Wuxi 214122 People's Republic of China
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3
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Islamova LN, Fazleeva GM, Sharipova SM, Shustikov AA, Tanysheva EG, Kalinin AA. Heck reaction in the synthesis of D-π-A chromophores: The effect of donor and acceptor on the ratio of 1,2- trans- and 1,1-isomer olefins. SYNTHETIC COMMUN 2022. [DOI: 10.1080/00397911.2022.2037650] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Liliya N. Islamova
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center of Russian Academy of Sciences, Kazan, Russia
| | - Guzel M. Fazleeva
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center of Russian Academy of Sciences, Kazan, Russia
| | - Sirina M. Sharipova
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center of Russian Academy of Sciences, Kazan, Russia
| | - Alexey A. Shustikov
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center of Russian Academy of Sciences, Kazan, Russia
| | - Ekaterina G. Tanysheva
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center of Russian Academy of Sciences, Kazan, Russia
| | - Alexey A. Kalinin
- Arbuzov Institute of Organic and Physical Chemistry FRC Kazan Scientific Center of Russian Academy of Sciences, Kazan, Russia
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4
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Wang S, Zheng L, Song S, Wang S, Zhang Z, Xiang J. Catalyst-Controlled Regiodivergent Synthesis of α/β-Dipeptide Derivatives via N-Allylic Alkylation of O-Alkyl Hydroxamates with MBH Carbonates. Chem Asian J 2022; 17:e202101186. [PMID: 34811892 DOI: 10.1002/asia.202101186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/11/2021] [Indexed: 11/06/2022]
Abstract
A controllable and regiodivergent N-allylation reaction involving readily available O-alkyl hydroxamates derived from natural α-amino acids has been developed, allowing regiospecific access to α/β-dipeptides containing α-unsaturated β-amino acids moieties in moderate to good yields. The regioselectivity could be conveniently switched by alternation of the catalysts and solvents.
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Affiliation(s)
- Shutao Wang
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University, The School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, P. R. China
| | - Lianyou Zheng
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University, The School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, P. R. China
| | - Shaoli Song
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University, The School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, P. R. China
| | - Siyu Wang
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University, The School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, P. R. China
| | - Zhuoqi Zhang
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University, The School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, P. R. China
| | - Jinbao Xiang
- The Center for Combinatorial Chemistry and Drug Discovery of Jilin University, The School of Pharmaceutical Sciences, Jilin University, Changchun, 130021, P. R. China.,Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun, 130021, P. R. China
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5
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Gardelly M, Trimech B, Horchani M, Znati M, Jannet HB, Romdhane A. Anti-tyrosinase and Anti-butyrylcholinesterase Quinolines-Based Coumarin Derivatives: Synthesis and Insights from Molecular Docking Studies. CHEMISTRY AFRICA 2021. [PMCID: PMC7938276 DOI: 10.1007/s42250-021-00235-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this work, a series of anti-tyrosinase and anti-butyrylcholinesterase coumarin derivatives 4a–f and 5a–f were synthesized starting from 4-hydroxycoumarin. The condensation of 2-(arylimin)-4-hydroxycoumarins 3a–f with dimethylformamide dimethyl acetal (DMF-DMA), used as a key reaction, afforded the precursors 4a–f, whose acid treatment led to the formation of 5a–f. These prepared heterocycles were characterized by spectroscopic means including 1H-NMR, 13C-NMR, and DCI-HRMS. Their anti-tyrosinase and anti-butyrylcholinesterase activities have been evaluated in vitro and some of them exhibited promising activity supported by the molecular docking analysis to estimate possible interactions between these compounds and active sites of both proteins tyrosinase (PDB: 2Y9W) and butyrylcholinesterase (PDB: 4TPK).
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Affiliation(s)
- Marwa Gardelly
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity, Faculty of Science of Monastir, Team: Medicinal Chemistry and Natural Products, Avenue of Environment, University of Monastir, 5019 Monastir, Tunisia
| | - Belsem Trimech
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity, Faculty of Science of Monastir, Team: Medicinal Chemistry and Natural Products, Avenue of Environment, University of Monastir, 5019 Monastir, Tunisia
| | - Mabrouk Horchani
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity, Faculty of Science of Monastir, Team: Medicinal Chemistry and Natural Products, Avenue of Environment, University of Monastir, 5019 Monastir, Tunisia
| | - Mansour Znati
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity, Faculty of Science of Monastir, Team: Medicinal Chemistry and Natural Products, Avenue of Environment, University of Monastir, 5019 Monastir, Tunisia
| | - Hichem Ben Jannet
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity, Faculty of Science of Monastir, Team: Medicinal Chemistry and Natural Products, Avenue of Environment, University of Monastir, 5019 Monastir, Tunisia
| | - Anis Romdhane
- Laboratory of Heterocyclic Chemistry, Natural Products and Reactivity, Faculty of Science of Monastir, Team: Medicinal Chemistry and Natural Products, Avenue of Environment, University of Monastir, 5019 Monastir, Tunisia
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6
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Murru S, Mokar BD, Bista R, Harakat D, Le Bras J, Fronczek F, Nicholas KM, Srivastava RS. Copper-catalyzed asymmetric allylic C–H amination of alkenes using N-arylhydroxylamines. Org Chem Front 2021. [DOI: 10.1039/d1qo00223f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The first Cu-catalyzed asymmetric allylic C–H amination of alkenes with N-aryl hydroxylamines has been developed. Metal-complexes isolation, ESI-MS analysis and the DFT calculations provided key insights on mechanistic pathway.
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Affiliation(s)
- Siva Murru
- Chemistry Program
- School of Sciences
- University of Louisiana at Monroe
- Louisiana 71209
- USA
| | - Bhanudas D. Mokar
- Department of Chemistry
- University of Louisiana at Lafayette
- Louisiana 70504
- USA
| | - Ramesh Bista
- Chemistry Program
- School of Sciences
- University of Louisiana at Monroe
- Louisiana 71209
- USA
| | - Dominique Harakat
- Institut de Chimie Moléculaire de Reims – UMR 7312 CNRS-Université de Reims Champagne-Ardenne UFR des Sciences Exactes et Naturelles
- 51687 REIMS Cedex 2
- France
| | - Jean Le Bras
- Institut de Chimie Moléculaire de Reims – UMR 7312 CNRS-Université de Reims Champagne-Ardenne UFR des Sciences Exactes et Naturelles
- 51687 REIMS Cedex 2
- France
| | - Frank Fronczek
- Department of Chemistry
- Louisiana State University
- Baton Rouge 70803
- USA
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7
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Sruthi PR, Sankar PU, Saranya TV, Anas S. Facile Synthesis of Dihydroquinolines via Palladium Catalyzed Sequential Amination and Cyclisation of Morita-Baylis-Hillman Alcohols. ChemistrySelect 2020; 5:13598-13602. [PMID: 33363255 PMCID: PMC7753362 DOI: 10.1002/slct.202003413] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/05/2020] [Indexed: 11/11/2022]
Abstract
Quinolines and its derivatives are significant class of heterocyclic compounds which are identified as the key component in many natural products and biologically important molecules. We describe herein a facile method for the synthesis of quinoline derivatives from Morita-Baylis-Hillman (MBH) Alcohols via Palladium Catalyzed intramolecular aryl amination followed by allylic amination pathway. The reaction between a series of MBH alcohols and amino compounds (Tosyl, aliphatic and aromatic amines) under optimized reaction conditions with Pd(PPh3)2Cl2/DPPP catalyst system, afforded the corresponding 1,2-dihydroquinolines upto 95 % isolated yield.
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Affiliation(s)
| | - P. Uma Sankar
- Department of ChemistryAmrithaviswavidyapeetKollamKeralaIndia-690525
| | | | - Saithalavi Anas
- School of Chemical SciencesMahatma Gandhi UniversityKottayamKeralaIndia-686560
- Institute for Integrated Programmes & Research in Basic Sciences (IIRBS)Mahatma Gandhi UniversityKottayamKeralaIndia-686560
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8
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Rajmani Singh RK, Karsili TN, Srivastava R. Copper-catalyzed enantioselective direct α-C-H amination of β-dicarbonyl derivatives with aryl hydroxylamines and mechanistic insights. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.111067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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Ma X, Meng S, Zhang X, Zhang Q, Yan S, Zhang Y, Zhang W. Synthesis of pyrrolidinedione-fused hexahydropyrrolo[2,1- a]isoquinolines via three-component [3 + 2] cycloaddition followed by one-pot N-allylation and intramolecular Heck reactions. Beilstein J Org Chem 2020; 16:1225-1233. [PMID: 32550934 PMCID: PMC7277624 DOI: 10.3762/bjoc.16.106] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022] Open
Abstract
Two kinds of [3 + 2] cycloaddition intermediates generated from the three-component reactions of 2-bromobenzaldehydes and maleimides with amino esters or amino acids were used for a one-pot N-allylation and intramolecular Heck reactions to form pyrrolidinedione-fused hexahydropyrrolo[2,1-a]isoquinolines. The multicomponent reaction was combined with one-pot reactions to make a synthetic method with good pot, atom and step economy. MeCN was used as a preferable green solvent for the reactions.
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Affiliation(s)
- Xiaoming Ma
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Suzhi Meng
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Xiaofeng Zhang
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
- Department of Cancer Biology, Dana-Farber Cancer Institute, Department of Medicine, Harvard Medical School, Boston, MA 02215, USA
| | - Qiang Zhang
- School of Chemistry, Biology and Materials Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Shenghu Yan
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Yue Zhang
- School of Pharmaceutical Engineering and Life Science, Changzhou University, Changzhou 213164, China
| | - Wei Zhang
- Center for Green Chemistry and Department of Chemistry, University of Massachusetts Boston, 100 Morrissey Boulevard, Boston, MA 02125, USA
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10
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Zhang SL, Deng ZQ. Synthesis of quinolines and naphthyridines via catalytic retro-aldol reaction of β-hydroxyketones with ortho-aminobenzaldehydes or nicotinaldehydes. Org Biomol Chem 2018; 14:8966-8970. [PMID: 27714212 DOI: 10.1039/c6ob01452f] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Cu(i)-catalyzed retro-aldol reaction of β-hydroxyketones with ortho-aminobenzaldehydes and nicotinaldehydes is reported that produces a range of quinolines and naphthyridines with high efficiency and selectivity. This reaction uses β-hydroxyketones as a regiospecific ketone-protected enolate source via copper-catalyzed retro-aldol Cα-Cβ bond cleavage. The in situ generated copper enolate undergoes kinetically favorable cyclization with ortho-amino aryl aldehydes to produce quinolines and naphthyridines in a chemo- and regioselective manner. The mild and weakly basic reaction conditions also suppress possible side reactions of benzaldehydes under strongly basic conditions, resulting in improved reaction yields.
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Affiliation(s)
- Song-Lin Zhang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
| | - Zhu-Qin Deng
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China.
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11
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Dai H, Li CX, Yu C, Wang Z, Yan H, Lu C. Copper(ii) catalyzed domino synthesis of quinoline derivatives from arylamines and alkynes. Org Chem Front 2017. [DOI: 10.1039/c7qo00333a] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
An open-flask copper(ii) catalyzed quinoline synthesis by anilines and electron-deficient alkynes at room temperature has been developed.
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Affiliation(s)
- Huimin Dai
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Chun-Xiao Li
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Chao Yu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Zihao Wang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Changsheng Lu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
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12
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Semina E, Žukauskaitė A, Šačkus A, De Kimpe N, Mangelinckx S. Selective Elaboration of Aminodiols towards Small Ring α- and β-Amino Acid Derivatives that Incorporate an Aziridine, Azetidine, or Epoxide Scaffold. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Murru S, Lott CS, McGough B, Bernard DM, Srivastava RS. Fe-catalyzed synthesis of substituted N-aryl oxazolidines. Org Biomol Chem 2016; 14:3681-5. [DOI: 10.1039/c6ob00185h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An unprecedented Fe-catalyzed oxazolidine formation was observed from the reaction of allyl alcohols with arylhydroxylamines in presence of formaldehyde or its equivalents.
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Affiliation(s)
- Siva Murru
- Department of Chemistry
- University of Louisiana at Lafayette
- Lafayette
- USA
| | - Charles Seth Lott
- Department of Chemistry
- University of Louisiana at Lafayette
- Lafayette
- USA
| | - Brandon McGough
- Department of Chemistry
- University of Louisiana at Lafayette
- Lafayette
- USA
| | - Dakota M. Bernard
- Department of Chemistry
- University of Louisiana at Lafayette
- Lafayette
- USA
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14
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Yang S, Yuan W, Xu Q, Shi M. Iron(III)‐Catalyzed Cycloisomerizations of Acetal–Vinylidenecyclopropanes: An Efficient Synthetic Route to 1,2‐Disubstituted Cyclobutenes. Chemistry 2015; 21:15964-9. [PMID: 26383049 DOI: 10.1002/chem.201502634] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2015] [Indexed: 01/02/2023]
Affiliation(s)
- Song Yang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237 (P. R. China)
| | - Wei Yuan
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032 (P. R. China)
| | - Qin Xu
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237 (P. R. China)
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road No. 130, Shanghai, 200237 (P. R. China)
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032 (P. R. China)
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15
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Zeoly LA, Barcelos RC, Rodrigues MT, Gomes RC, Coelho F. An improved method for the regioselective synthesis of highly substituted quinolines from Morita–Baylis–Hillman adducts. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.03.090] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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16
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Murru S, Lott CS, Fronczek FR, Srivastava RS. Fe-Catalyzed Direct α C–H Amination of Carbonyl Compounds. Org Lett 2015; 17:2122-5. [DOI: 10.1021/acs.orglett.5b00710] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Siva Murru
- Department
of Chemistry, University of Louisiana at Lafayette, Lafayette, Louisiana 70504, United States
| | - Charles Seth Lott
- Department
of Chemistry, University of Louisiana at Lafayette, Lafayette, Louisiana 70504, United States
| | - Frank R. Fronczek
- Department
of Chemistry, Louisiana State University, Baton Rouge, Louisiana 70803, United States
| | - Radhey S. Srivastava
- Department
of Chemistry, University of Louisiana at Lafayette, Lafayette, Louisiana 70504, United States
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17
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Prakash R, Shekarrao K, Saikia P, Gogoi S, Boruah RC. Palladium mediated regioselective intramolecular Heck reaction: synthesis of 1,3,4-trisubstituted pyrazolo[3,4-b]pyridines, 3H-pyrazolo[3,4-c]isoquinolines and 3H-pyrazolo[4,3-f][1,7]naphthyridines. RSC Adv 2015. [DOI: 10.1039/c4ra17190j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A new approach for the synthesis of 1,3,4-trisubstituted pyrazolo[3,4-b]pyridines, 3H-pyrazolo[3,4-c]isoquinolines and 3H-pyrazolo[4,3-f][1,7]naphthyridines via an intramolecular Heck reaction is described.
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Affiliation(s)
- Rashmi Prakash
- Medicinal Chemistry Division
- North-East Institute of Science and Technology
- Jorhat
- India
| | - Kommuri Shekarrao
- Medicinal Chemistry Division
- North-East Institute of Science and Technology
- Jorhat
- India
| | - Pallabi Saikia
- Medicinal Chemistry Division
- North-East Institute of Science and Technology
- Jorhat
- India
| | - Sanjib Gogoi
- Medicinal Chemistry Division
- North-East Institute of Science and Technology
- Jorhat
- India
| | - Romesh C. Boruah
- Medicinal Chemistry Division
- North-East Institute of Science and Technology
- Jorhat
- India
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