101
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Gupton JT, Telang N, Patteson J, Lescalleet K, Yeudall S, Sobieski J, Harrison A, Curry W. The application of formyl group activation of bromopyrrole esters to formal syntheses of lycogarubin C, permethyl storniamide A and lamellarin G trimethyl ether. Tetrahedron 2014; 70:9759-9767. [PMID: 25584014 DOI: 10.1016/j.tet.2014.11.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Lycogarubin C, permethyl storniamide A and lamellarin G trimethyl ether are pyrrole containing, natural products, which exhibit interesting biological properties. Such properties include anti-tumor activity on a variety of cancer cell lines including those that confer drug resistance, inhibition of HIV integrase and vascular disrupting activity. We now describe the use of methyl and ethyl 3-bromo-2-formylpyrrole-5-carboxylate as building blocks for the formal synthesis of these three highly functionalized, bioactive pyrroles. These new building blocks will now provide ready access to the natural products and many novel analogs due to the ability to easily modify positions 2,3,4 and 5 of the pyrrole core.
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Affiliation(s)
- John T Gupton
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Nakul Telang
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Jon Patteson
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Kristin Lescalleet
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Scott Yeudall
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - John Sobieski
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Andrew Harrison
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
| | - Will Curry
- Department of Chemistry, University of Richmond, Richmond, VA 23173, USA
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102
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Sobenina LN, Petrova OV, Tomilin DN, Gotsko MD, Ushakov IA, Klyba LV, Mikhaleva AI, Trofimov BA. Ethynylation of 2-(furan-2-yl)- and 2-(thiophen-2-yl)pyrroles with acylbromoacetylenes in the Al2O3 medium: relative reactivity of heterocycles. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.10.068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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103
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Novel sulfonamides bearing pyrrole and pyrrolopyrimidine moieties as carbonic anhydrase inhibitors: Synthesis, cytotoxic activity and molecular modeling. Eur J Med Chem 2014; 87:186-96. [DOI: 10.1016/j.ejmech.2014.09.059] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 09/15/2014] [Accepted: 09/17/2014] [Indexed: 11/18/2022]
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104
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Wei H, Gao H, Shreeve JM. N-oxide 1,2,4,5-tetrazine-based high-performance energetic materials. Chemistry 2014; 20:16943-52. [PMID: 25330776 DOI: 10.1002/chem.201405122] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Indexed: 11/08/2022]
Abstract
One route to high density and high performance energetic materials based on 1,2,4,5-tetrazine is the introduction of 2,4-di-N-oxide functionalities. Based on several examples and through theoretical analysis, the strategy of regioselective introduction of these moieties into 1,2,4,5-tetrazines has been developed. Using this methodology, various new tetrazine structures containing the N-oxide functionality were synthesized and fully characterized using IR, NMR, and mass spectroscopy, elemental analysis, and single-crystal X-ray analysis. Hydrogen peroxide (50 %) was used very effectively in lieu of the usual 90 % peroxide in this system to generate N-oxide tetrazine compounds successfully. Comparison of the experimental densities of N-oxide 1,2,4,5-tetrazine compounds with their 1,2,4,5-tetrazine precursors shows that introducing the N-oxide functionality is a highly effective and feasible method to enhance the density of these materials. The heats of formation for all compounds were calculated with Gaussian 03 (revision D.01) and these values were combined with measured densities to calculate detonation pressures (P) and velocities (νD ) of these energetic materials (Explo 5.0 v. 6.01). The new oxygen-containing tetrazines exhibit high density, good thermal stability, acceptable oxygen balance, positive heat of formation, and excellent detonation properties, which, in some cases, are superior to those of 1,3,5-tritnitrotoluene (TNT), 1,3,5-trinitrotriazacyclohexane (RDX), and octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine (HMX).
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Affiliation(s)
- Hao Wei
- Department of Chemistry, University of Idaho, 875 Perimeter Dr., MS 2343, Moscow, ID 83844-2343 (USA)
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105
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Wang Z, Xue L, He Y, Weng L, Fang L. Access to Functionalized 3H-Pyrrolo[2,3-c]quinolin-4(5H)-ones and Thieno[2,3-c]quinolin-4(5H)-ones via Domino Reaction of 4-Alkynyl-3-bromoquinolin-2(1H)-ones. J Org Chem 2014; 79:9628-38. [DOI: 10.1021/jo501753p] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Zhiyong Wang
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Lijun Xue
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Yiyi He
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Licong Weng
- School
of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, P. R. China
| | - Ling Fang
- School
of Environmental and Biological Engineering, Chongqing Technology and Business University, Chongqing 400067, P. R. China
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106
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Anderson ED, Duerfeldt AS, Zhu K, Glinkerman CM, Boger DL. Cycloadditions of noncomplementary substituted 1,2,3-triazines. Org Lett 2014; 16:5084-7. [PMID: 25222918 PMCID: PMC4184932 DOI: 10.1021/ol502436n] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
![]()
The scope of the [4 + 2] cycloaddition
reactions of substituted
1,2,3-triazines, bearing noncomplementary substitution with electron-withdrawing
groups at C4 and/or C6, is described. The studies define key electronic
and steric effects of substituents impacting the reactivity, mode
(C4/N1 vs C5/N2), and regioselectivity of the cycloaddition reactions
of 1,2,3-triazines with amidines, enamines, and ynamines, providing
access to highly functionalized heterocycles.
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Affiliation(s)
- Erin D Anderson
- Department of Chemistry and The Skaggs Institute for Chemical Biology, The Scripps Research Institute , 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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107
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Ueda H, Yamaguchi M, Kameya H, Sugimoto K, Tokuyama H. Autotandem Catalysis: Synthesis of Pyrroles by Gold-Catalyzed Cascade Reaction. Org Lett 2014; 16:4948-51. [DOI: 10.1021/ol5024695] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Hirofumi Ueda
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Minami Yamaguchi
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Hiroshi Kameya
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Kenji Sugimoto
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Hidetoshi Tokuyama
- Graduate School of Pharmaceutical
Sciences, Tohoku University, Aoba 6-3, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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108
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Kapdi AR, Prajapati D. Regioselective palladium-catalysed cross-coupling reactions: a powerful synthetic tool. RSC Adv 2014. [DOI: 10.1039/c4ra07895k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
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109
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Qian J, Zhang Z, Liu Q, Liu T, Zhang G. Dimethyl Sulfoxide Participating in Copper(I) Iodide-Catalyzed Cascade Oxidation/Formylation Reactions: The Synthesis of α-Formylpyrroles from 2,3-Dihydro-1H-pyrroles. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400332] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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110
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Liu F, Liang Y, Houk KN. Theoretical elucidation of the origins of substituent and strain effects on the rates of Diels-Alder reactions of 1,2,4,5-tetrazines. J Am Chem Soc 2014; 136:11483-93. [PMID: 25041719 DOI: 10.1021/ja505569a] [Citation(s) in RCA: 132] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The Diels-Alder reactions of seven 1,2,4,5-tetrazines with unstrained and strained alkenes and alkynes were studied with quantum mechanical calculations (M06-2X density functional theory) and analyzed with the distortion/interaction model. The higher reactivities of alkenes compared to alkynes in the Diels-Alder reactions with tetrazines arise from the differences in both interaction and distortion energies. Alkenes have HOMO energies higher than those of alkynes and therefore stronger interaction energies in inverse-electron-demand Diels-Alder reactions with tetrazines. We have also found that the energies to distort alkenes into the Diels-Alder transition-state geometries are smaller than for alkynes in these reactions. The strained dienophiles, trans-cyclooctene and cyclooctyne, are much more reactive than unstrained trans-2-butene and 2-butyne, because they are predistorted toward the Diels-Alder transition structures. The reactivities of substituted tetrazines correlate with the electron-withdrawing abilities of the substituents. Electron-withdrawing groups lower the LUMO+1 of tetrazines, resulting in stronger interactions with the HOMO of dienophiles. Moreover, electron-withdrawing substituents destabilize the tetrazines, and this leads to smaller distortion energies in the Diels-Alder transition states.
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Affiliation(s)
- Fang Liu
- Department of Chemistry and Biochemistry, University of California , Los Angeles, California 90095, United States
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111
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Ghorab MM, Alsaid MS, Ceruso M, Nissan YM, Supuran CT. Carbonic anhydrase inhibitors: Synthesis, molecular docking, cytotoxic and inhibition of the human carbonic anhydrase isoforms I, II, IX, XII with novel benzenesulfonamides incorporating pyrrole, pyrrolopyrimidine and fused pyrrolopyrimidine moieties. Bioorg Med Chem 2014; 22:3684-95. [PMID: 24878360 DOI: 10.1016/j.bmc.2014.05.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 11/21/2022]
Abstract
A series of novel pyrroles, pyrrolopyrimidines, pyrazolopyrrolopyrimidine, triazolopyrrolopyrimidines, tetrazolopyrrolopyrimidine, triazinopyrrolopyrimidines and pyrrolopyrimidotriazepines bearing the biologically active benzenesulfonamide moiety were synthesized by using pyrrole-o-amino-carbonitrile as key intermediate. All the synthesized compounds were evaluated for their in vitro carbonic anhydrase (CA, EC 4.2.1.1) inhibitory effects against the human (h) isoforms hCA I, II, IX and XII. Among the tested derivatives, compounds 16, 18 and 20-24 showed potent activity as inhibitors for the tumor associated transmembrane isoforms (hCA IX and XII) in the nanomolar and subnanomolar range, with high selectivity. All compounds underwent cytotoxic activity assays on human breast cancer cell line (MCF-7) showing effective activity, comparable to that of the clinically used drug doxorubicin.
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Affiliation(s)
- Mostafa M Ghorab
- Pharmacognosy Department, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Saudi Arabia; Drug Radiation Research Department, National Center for Radiation Research & Technology, Atomic Energy Authority, Cairo, Egypt.
| | - Mansour S Alsaid
- Pharmacognosy Department, College of Pharmacy, King Saud University, PO Box 2457, Riyadh 11451, Saudi Arabia
| | - Mariangela Ceruso
- Università degli Studi di Firenze, Laboratorio di Chimica Bioinorganica, Rm. 188, Via della Lastruccia 3, I-50019 Sesto Fiorentino (Firenze), Italy
| | - Yassin M Nissan
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Al-Aini st., PO Box 11562, Cairo, Egypt
| | - Claudiu T Supuran
- Università degli Studi di Firenze, Laboratorio di Chimica Bioinorganica, Rm. 188, Via della Lastruccia 3, I-50019 Sesto Fiorentino (Firenze), Italy; Università degli Studi di Firenze, Polo Scientifico, Dipartimento Neurofaba; Sezione di Scienze Farmaceutiche e Nutraceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Firenze), Italy.
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112
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Umeda R, Mashino T, Nishiyama Y. Synthesis of multisubstituted 1H-pyrrole: selenium-catalyzed reaction of γ-nitro substituted carbonyl compounds and carbon monoxide. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.04.061] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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113
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Mehrabi H, Anary-Abbasinejad M, Mirhashemi F. An efficient and convenient synthesis of pentasubstituted pyrroles from alkyl acetoacetates, dialkyl acetylenedicarboxylates, and amines. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.06.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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114
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Naganaboina RT, Nayak A, Peddinti RK. Trifluoroacetic acid-promoted Michael addition-cyclization reactions of vinylogous carbamates. Org Biomol Chem 2014; 12:3366-70. [PMID: 24756460 DOI: 10.1039/c4ob00437j] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple and efficient methodology has been developed for the synthesis of pyrrolobenzoxazine and 3-arylamino coumarin derivatives promoted by trifluoroacetic acid. The initial step in the current protocol involves a Michael addition of the 1,4-benzoxazinone derivatives, a novel class of vinylogous carbamates to the Michael acceptors and subsequent cyclization.
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Affiliation(s)
- Ram Tilak Naganaboina
- The Department of Chemistry, Indian Institute of Technology, Roorkee-247667, Uttarakhand, India.
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115
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Vila C, Lau J, Rueping M. Visible-light photoredox catalyzed synthesis of pyrroloisoquinolines via organocatalytic oxidation/[3 + 2] cycloaddition/oxidative aromatization reaction cascade with Rose Bengal. Beilstein J Org Chem 2014; 10:1233-8. [PMID: 24991273 PMCID: PMC4077507 DOI: 10.3762/bjoc.10.122] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Accepted: 04/30/2014] [Indexed: 11/23/2022] Open
Abstract
Pyrrolo[2,1-a]isoquinoline alkaloids have been prepared via a visible light photoredox catalyzed oxidation/[3 + 2] cycloaddition/oxidative aromatization cascade using Rose Bengal as an organo-photocatalyst. A variety of pyrroloisoquinolines have been obtained in good yields under mild and metal-free reaction conditions.
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Affiliation(s)
- Carlos Vila
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Jonathan Lau
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
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116
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Grosso C, Valentão P, Ferreres F, Andrade PB. Bioactive marine drugs and marine biomaterials for brain diseases. Mar Drugs 2014; 12:2539-89. [PMID: 24798925 PMCID: PMC4052305 DOI: 10.3390/md12052539] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 04/10/2014] [Accepted: 04/16/2014] [Indexed: 12/19/2022] Open
Abstract
Marine invertebrates produce a plethora of bioactive compounds, which serve as inspiration for marine biotechnology, particularly in drug discovery programs and biomaterials development. This review aims to summarize the potential of drugs derived from marine invertebrates in the field of neuroscience. Therefore, some examples of neuroprotective drugs and neurotoxins will be discussed. Their role in neuroscience research and development of new therapies targeting the central nervous system will be addressed, with particular focus on neuroinflammation and neurodegeneration. In addition, the neuronal growth promoted by marine drugs, as well as the recent advances in neural tissue engineering, will be highlighted.
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Affiliation(s)
- Clara Grosso
- REQUIMTE/Laboratory of Pharmacognosy, Department of Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, no. 228, 4050-313 Porto, Portugal.
| | - Patrícia Valentão
- REQUIMTE/Laboratory of Pharmacognosy, Department of Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, no. 228, 4050-313 Porto, Portugal.
| | - Federico Ferreres
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS (CSIC), P.O. Box 164, Campus University Espinardo, Murcia 30100, Spain.
| | - Paula B Andrade
- REQUIMTE/Laboratory of Pharmacognosy, Department of Chemistry, Faculty of Pharmacy, University of Porto, Rua de Jorge Viterbo Ferreira, no. 228, 4050-313 Porto, Portugal.
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117
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Reaction of 3-Alkanoylquinoxalin-2-Ones with Ammonium Acetate in DMSO – A New Method for the Synthesis of Pyrroles. Chem Heterocycl Compd (N Y) 2014. [DOI: 10.1007/s10593-014-1461-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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118
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Yufeng L, Jie S, Zhengguang W, Xinglong W, Xiaowei W, Jiachao G, Hongzhong B, Hongfei M. An atom-economic synthesis of functionalized pyrroles via a sequential metal-catalyzed three-component reaction. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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119
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Satish G, Reddy KHV, Ramesh K, Kumar BA, Nageswar Y. An elegant protocol for the synthesis of N-substituted pyrroles through C–N cross coupling/aromatization process using CuFe2O4 nanoparticles as catalyst under ligand-free conditions. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.075] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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120
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Kim CE, Park S, Eom D, Seo B, Lee PH. Synthesis of pyrroles from terminal alkynes, N-sulfonyl azides, and alkenyl alkyl ethers through 1-sulfonyl-1,2,3-triazoles. Org Lett 2014; 16:1900-3. [PMID: 24660875 DOI: 10.1021/ol500718s] [Citation(s) in RCA: 119] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A method for synthesis of substituted pyrroles has been developed. 1-Sulfonyl-1,2,3-triazoles generated from terminal alkynes gave α-imino rhodium carbene complexes, which when reacted with alkenyl alkyl ethers afforded substituted pyrroles. The method can be efficiently applied to a one-pot sequential reaction starting from terminal alkynes.
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Affiliation(s)
- Cheol-Eui Kim
- Department of Chemistry, Kangwon National University , Chuncheon 200-701, Republic of Korea
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121
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Hosseini-Sarvari M, Najafvand-Derikvandi S, Jarrahpour A, Heiran R. Nano Sulfated Titania as a Heterogeneous Solid Acid Catalyst for the Synthesis of Pyrroles by Clauson–Kaas Condensation under Solvent-free Conditions. Chem Heterocycl Compd (N Y) 2014. [DOI: 10.1007/s10593-014-1425-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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122
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Tang CY, Tao Y, Wu XY, Sha F. Rhodium(III)-Catalyzed Direct C-2 Olefination of Unactivated Indoles Utilizing OH/NH2as Directing Group. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201300930] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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123
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Huang HM, Li YJ, Ye Q, Yu WB, Han L, Jia JH, Gao JR. Iodine-Catalyzed 1,3-Dipolar Cycloaddition/Oxidation/Aromatization Cascade with Hydrogen Peroxide as the Terminal Oxidant: General Route to Pyrrolo[2,1-a]isoquinolines. J Org Chem 2014; 79:1084-92. [DOI: 10.1021/jo402540j] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Huan-Ming Huang
- State Key
Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Yu-Jin Li
- State Key
Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Qing Ye
- State Key
Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Wu-Bin Yu
- State Key
Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Liang Han
- State Key
Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Jian-Hong Jia
- State Key
Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
| | - Jian-Rong Gao
- State Key
Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, People’s Republic of China
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124
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Huang HM, Huang F, Li YJ, Jia JH, Ye Q, Han L, Gao JR. A general, simple and green process to access pyrrolo[2,1-a]isoquinolines using a KI/TBHP catalytic system. RSC Adv 2014. [DOI: 10.1039/c4ra03455d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
A novel KI/TBHP-catalyzed 1,3-dipolar cycloaddition/oxidation/aromatization cascade reaction provided a general, efficient and green access to biologically important pyrrolo[2,1-a]isoquinolines.
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Affiliation(s)
- Huan-Ming Huang
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Fang Huang
- Department of Pharmacology
- School of Pharmaceutical Sciences
- Southern Medical University
- Guangzhou 510515, China
| | - Yu-Jin Li
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Jian-Hong Jia
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Qing Ye
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Liang Han
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou, P. R. China
| | - Jian-Rong Gao
- State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology
- Zhejiang University of Technology
- Hangzhou, P. R. China
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125
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Bényei AC, Stirling A, Bostai B, Lőrincz K, Kotschy A. Out of cross-conjugation: the unexpected structure of tetrazinones. RSC Adv 2014. [DOI: 10.1039/c4ra05616g] [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] Open
Abstract
Combined experimental and theoretical investigations helped to elucidate the mechanisms responsible for the unique structural and electronic properties of NHC-substituted tetrazinone compounds.
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Affiliation(s)
- A. C. Bényei
- Laboratory of X-ray Diffraction
- Department of Pharmaceutical Chemistry
- University of Debrecen
- H-4010 Debrecen, Hungary
| | - A. Stirling
- Institute of Organic Chemistry
- Research Centre for Natural Sciences
- Hungarian Academy of Sciences
- H-1117 Budapest, Hungary
| | - B. Bostai
- Institute of Chemistry
- Eötvös Loránd University
- H-1117 Budapest, Hungary
| | - K. Lőrincz
- Institute of Chemistry
- Eötvös Loránd University
- H-1117 Budapest, Hungary
| | - A. Kotschy
- Institute of Chemistry
- Eötvös Loránd University
- H-1117 Budapest, Hungary
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126
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Srivastava A, Shukla G, Nagaraju A, Verma GK, Raghuvanshi K, Jones RCF, Singh MS. In(OTf)3-catalysed one-pot versatile pyrrole synthesis through domino annulation of α-oxoketene-N,S-acetals with nitroolefins. Org Biomol Chem 2014; 12:5484-91. [DOI: 10.1039/c4ob00781f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An operationally simple and efficient one-pot direct access to pyrroles has been achieved by annulation of α-oxoketene-N,S-acetals with β-nitrostyrenes catalyzed by In(OTf)3under solvent-free conditions.
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Affiliation(s)
- Abhijeet Srivastava
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-05, India
| | - Gaurav Shukla
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-05, India
| | - Anugula Nagaraju
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-05, India
| | - Girijesh Kumar Verma
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-05, India
| | - Keshav Raghuvanshi
- Institut für Organische und Biomolekulare Chemie
- Georg-August-Universität
- Göttingen, Germany
| | | | - Maya Shankar Singh
- Department of Chemistry
- Faculty of Science
- Banaras Hindu University
- Varanasi-05, India
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127
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Wang R, Wang SY, Ji SJ. Water promoted C–C bond cleavage: facile synthesis of 3,3-bipyrrole derivatives from dienones and tosylmethyl isocyanide (TosMIC). Org Biomol Chem 2014; 12:1735-40. [DOI: 10.1039/c3ob42570c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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128
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Komatsubara M, Umeki T, Fukuda T, Iwao M. Modular synthesis of lamellarins via regioselective assembly of 3,4,5-differentially arylated pyrrole-2-carboxylates. J Org Chem 2013; 79:529-37. [PMID: 24364699 DOI: 10.1021/jo402181w] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A modular synthesis of lamellarins via 3,4,5-differentially arylated pyrrole-2-carboxylate intermediates has been developed. The key reactions employed are Br-Li exchange-methoxycarbonylation of 2,5-dibromo-1-(tert-butoxycarbonyl)-1H-pyrrole (1) followed by palladium-catalyzed iterative Suzuki-Miyaura coupling of the pyrrole core. The 3,4,5-triarylpyrrole 4 thus synthesized was readily converted to 5,6-saturated lamellarin L (2) and 5,6-unsaturated lamellarin N (3) via lactonization followed by annulation of the pyrrole nitrogen and lateral aromatic ring at C5 using 2-bromoethyl phenyl sulfide or bromoacetaldehyde dimethyl acetal as two-carbon homologation agents. In principle, this strategy allows the production of diverse lamellarins in short steps with high yields using readily accessible arylboronic acids as aromatic modules.
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Affiliation(s)
- Masashi Komatsubara
- Division of Chemistry and Materials Science, Graduate School of Engineering, Nagasaki University , 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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129
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Synthesis and antioxidant activity of amido-linked benzoxazolyl/benzothiazolyl/benzimidazolyl-pyrroles and pyrazoles. Med Chem Res 2013. [DOI: 10.1007/s00044-013-0884-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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130
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Alizadeh A, Mikaeili A. Synthesis of 2-Oxopyrrole-fused 1,n-Diazaheterocyclic Compounds and Substituted 2-Oxopyrroles via a Three-Component Reaction. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1756] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Abdolali Alizadeh
- Department of Chemistry; Tarbiat Modares University; P. O. Box 14115-175 Tehran Iran
| | - Azadeh Mikaeili
- Department of Chemistry; Tarbiat Modares University; P. O. Box 14115-175 Tehran Iran
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131
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Bin JW, Wong ILK, Hu X, Yu ZX, Xing LF, Jiang T, Chow LMC, Biao WS. Structure–Activity Relationship Study of Permethyl Ningalin B Analogues as P-Glycoprotein Chemosensitizers. J Med Chem 2013; 56:9057-70. [DOI: 10.1021/jm400930e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Jin Wen Bin
- Key
Laboratory of Marine Drugs, Chinese Ministry of Education, School
of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 Shandong, China
| | - Iris L. K. Wong
- Department
of Applied Biology and Chemical Technology and the State Key Laboratory
for Chirosciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region, China
- State
Key Laboratory in Chinese Medicine and Molecular Pharmacology, Shenzhen, 518057 Guangdong, China
| | - Xuesen Hu
- Department
of Applied Biology and Chemical Technology and the State Key Laboratory
for Chirosciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region, China
- State
Key Laboratory in Chinese Medicine and Molecular Pharmacology, Shenzhen, 518057 Guangdong, China
| | - Zhang Xiao Yu
- Key
Laboratory of Marine Drugs, Chinese Ministry of Education, School
of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 Shandong, China
| | - Li Fu Xing
- Key
Laboratory of Marine Drugs, Chinese Ministry of Education, School
of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 Shandong, China
| | - Tao Jiang
- Key
Laboratory of Marine Drugs, Chinese Ministry of Education, School
of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 Shandong, China
| | - Larry M. C. Chow
- Department
of Applied Biology and Chemical Technology and the State Key Laboratory
for Chirosciences, The Hong Kong Polytechnic University, Hung Hom, Hong Kong Special Administrative Region, China
- State
Key Laboratory in Chinese Medicine and Molecular Pharmacology, Shenzhen, 518057 Guangdong, China
| | - Wan Sheng Biao
- Key
Laboratory of Marine Drugs, Chinese Ministry of Education, School
of Medicine and Pharmacy, Ocean University of China, Qingdao, 266003 Shandong, China
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132
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Zhou Y, Yan X, Chen C, Xi C. Copper-Mediated Reaction of Zirconacyclopentadienes with Azides: A One-Pot Three-Component Synthesis of Multiply Substituted Pyrroles from One Azide and Two Alkynes. Organometallics 2013. [DOI: 10.1021/om400988g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Yiqing Zhou
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Xiaoyu Yan
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Chanjuan Xi
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
- State Key Laboratory
of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, People’s Republic of China
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133
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Imbri D, Tauber J, Opatz T. A high-yielding modular access to the lamellarins: synthesis of lamellarin G trimethyl ether, lamellarin η and dihydrolamellarin η. Chemistry 2013; 19:15080-3. [PMID: 24123481 DOI: 10.1002/chem.201303563] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Indexed: 12/16/2022]
Affiliation(s)
- Dennis Imbri
- Institut für Organische Chemie, Universität Mainz, Duesbergweg 10-14, 55128 Mainz (Germany), Fax: (+49) 6131/39-22338
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134
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Zhang M, Zhang J. Gold(I)-Catalyzed Diastereoselective Domino Reactions of 2-(1-Alkynyl)alk-2-en-1-one Oxime Ethers with α,β-Unsaturated Imines Consisting of 1,2-Alkyl Migration. Isr J Chem 2013. [DOI: 10.1002/ijch.201300070] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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135
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Modular CeCl3·7H2O-catalyzed multi-component synthesis of 1,2,3,4-tetrasubstituted pyrroles under microwave irradiation and their further trichloroisocyanuric acid-mediated conversion into 5-sulfenylpyrrole derivatives. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.08.035] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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136
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Mahmoudi H, Jafari AA. Facial Preparation of Sulfonic Acid-Functionalized Magnetite-Coated Maghemite as a Magnetically Separable Catalyst for Pyrrole Synthesis. ChemCatChem 2013. [DOI: 10.1002/cctc.201300623] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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137
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Thies N, Gerlach M, Haak E. Ruthenium-Catalyzed Synthesis of Highly Substituted Pyrroles from 1-Vinylpropargyl Alcohols and Amines. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300803] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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138
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Bharathiraja G, Sakthivel S, Sengoden M, Punniyamurthy T. A Novel Tandem Sequence to Pyrrole Syntheses by 5-endo-dig Cyclization of 1,3-Enynes with Amines. Org Lett 2013; 15:4996-9. [DOI: 10.1021/ol402305b] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Ganesan Bharathiraja
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Sekarpandi Sakthivel
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Mani Sengoden
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
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139
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Bagdi PR, Basha RS, Lal M, Khan AT. Bromodimethylsulfonium Bromide (BDMS)-catalyzed Synthesis of Substituted Pyrroles through a One-pot Four-component Reaction. CHEM LETT 2013. [DOI: 10.1246/cl.130317] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
| | - R. Sidick Basha
- Department of Chemistry, Indian Institute of Technology Guwahati
| | - Mohan Lal
- Department of Chemistry, Indian Institute of Technology Guwahati
| | - Abu T. Khan
- Department of Chemistry, Indian Institute of Technology Guwahati
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140
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Eberhart A, Cicoira C, Procter DJ. Nucleophilic ortho-allylation of pyrroles and pyrazoles: an accelerated Pummerer/thio-Claisen rearrangement sequence. Org Lett 2013; 15:3994-7. [PMID: 23855635 PMCID: PMC3819180 DOI: 10.1021/ol401786d] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Indexed: 01/18/2023]
Abstract
Arylsulfinyl groups direct the metal-free, regiospecific, nucleophilic ortho-allylation of pyrroles and pyrazoles. Mechanistic studies support the intermediacy of allylsulfonium salts that undergo facile thio-Claisen rearrangement onto the heterocyclic ring, giving products of coupling. The strategy has been adapted to allow regiospecific propargylation of the heterocyclic substrates.
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Affiliation(s)
- Andrew
J. Eberhart
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K
| | - Claudio Cicoira
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K
| | - David J. Procter
- School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, U.K
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141
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Lee H, Kim BH. Indium-mediated one-pot pyrrole synthesis from nitrobenzenes and 1,4-diketones. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.113] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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142
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Wang HT, Lu CD. Synthesis of 3,4-dihydropyrrolo[2,1-a]isoquinolines based on [3+2] cycloaddition initiated by Rh2(cap)4-catalyzed oxidation. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.04.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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143
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Meshram H, Madhu Babu B, Santosh Kumar G, Thakur PB, Bangade VM. Catalyst-free four-component protocol for the synthesis of substituted pyrroles under reusable reaction media. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.01.098] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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144
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Feng X, Wang Q, Lin W, Dou GL, Huang ZB, Shi DQ. Highly Efficient Synthesis of Polysubstituted Pyrroles via Four-Component Domino Reaction. Org Lett 2013; 15:2542-5. [PMID: 24490761 DOI: 10.1021/ol4010382] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xian Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Qian Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Wei Lin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Guo-Lan Dou
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Zhi-Bin Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
| | - Da-Qing Shi
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China, and School of Safety Engineering, China University of Mining & Technology, Xuzhou 221116, P. R. China
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145
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Suresh R, Muthusubramanian S, Nagaraj M, Manickam G. Indium trichloride catalyzed regioselective synthesis of substituted pyrroles in water. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2012.11.065] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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146
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Takamura K, Matsuo H, Tanaka A, Tanaka J, Fukuda T, Ishibashi F, Iwao M. Total synthesis of the marine natural products lukianols A and B. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.01.077] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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147
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Billedeau RJ, Klein KR, Kaplan D, Lou Y. A New Pyrrole Synthesis via Silver(I)-Catalyzed Cycloaddition of Vinylogous Diazoester and Nitrile. Org Lett 2013; 15:1421-3. [DOI: 10.1021/ol400062w] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Roland J. Billedeau
- Hoffmann-La Roche Inc., pRED, Pharma Research & Early Development, Small Molecule Research, Discovery Chemistry, 340 Kingsland Street, Nutley, New Jersey 07110, United States
| | - Klara R. Klein
- Hoffmann-La Roche Inc., pRED, Pharma Research & Early Development, Small Molecule Research, Discovery Chemistry, 340 Kingsland Street, Nutley, New Jersey 07110, United States
| | - Daniel Kaplan
- Hoffmann-La Roche Inc., pRED, Pharma Research & Early Development, Small Molecule Research, Discovery Chemistry, 340 Kingsland Street, Nutley, New Jersey 07110, United States
| | - Yan Lou
- Hoffmann-La Roche Inc., pRED, Pharma Research & Early Development, Small Molecule Research, Discovery Chemistry, 340 Kingsland Street, Nutley, New Jersey 07110, United States
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148
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Iida K, Miura T, Ando J, Saito S. The Dual Role of Ruthenium and Alkali Base Catalysts in Enabling a Conceptually New Shortcut to N-Unsubstituted Pyrroles through Unmasked α-Amino Aldehydes. Org Lett 2013; 15:1436-9. [DOI: 10.1021/ol4001262] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Kazuki Iida
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan, and Institute for Advanced Research, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Takashi Miura
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan, and Institute for Advanced Research, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Junki Ando
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan, and Institute for Advanced Research, Nagoya University, Chikusa, Nagoya 464-8601, Japan
| | - Susumu Saito
- Graduate School of Science, Nagoya University, Chikusa, Nagoya 464-8602, Japan, and Institute for Advanced Research, Nagoya University, Chikusa, Nagoya 464-8601, Japan
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149
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Chen W, Wang J. Synthesis of Pyrrole Derivatives from Diallylamines by One-Pot Tandem Ring-Closing Metathesis and Metal-Catalyzed Oxidative Dehydrogenation. Organometallics 2013. [DOI: 10.1021/om400046r] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Weiqiang Chen
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s
Republic of China
| | - Jianhui Wang
- Department of Chemistry, College of Science, Tianjin University, Tianjin 300072, People’s
Republic of China
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150
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Siddiqui IR, Kumar D, Shamim S. Ionic Liquid Promoted Multicomponent Reaction: A Good Strategy for the Eco-Compatible Synthesis of Functionalized Pyrroles. J Heterocycl Chem 2013. [DOI: 10.1002/jhet.1085] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- I. R. Siddiqui
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002; India
| | - Devesh Kumar
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002; India
| | - Shayna Shamim
- Laboratory of Green Synthesis, Department of Chemistry; University of Allahabad; Allahabad 211002; India
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