51
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Khangarot RK, Kaliappan KP. A Stereoselective Route to Aza-C-aryl Glycosides from Arynes and Chiral Nitrones. European J Org Chem 2012. [DOI: 10.1002/ejoc.201200685] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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52
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Kovács S, Csincsi ÁI, Nagy TZ, Boros S, Timári G, Novák Z. Design and Application of New Imidazolylsulfonate-Based Benzyne Precursor: An Efficient Triflate Alternative. Org Lett 2012; 14:2022-5. [DOI: 10.1021/ol300529j] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Szabolcs Kovács
- Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny 1/a, H-1117 Budapest, Hungary, and Sanofi, Chinoin Zrt, Tó utca 1-4, H-1045 Budapest, Hungary
| | - Ádám I. Csincsi
- Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny 1/a, H-1117 Budapest, Hungary, and Sanofi, Chinoin Zrt, Tó utca 1-4, H-1045 Budapest, Hungary
| | - Tibor Zs. Nagy
- Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny 1/a, H-1117 Budapest, Hungary, and Sanofi, Chinoin Zrt, Tó utca 1-4, H-1045 Budapest, Hungary
| | - Sándor Boros
- Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny 1/a, H-1117 Budapest, Hungary, and Sanofi, Chinoin Zrt, Tó utca 1-4, H-1045 Budapest, Hungary
| | - Géza Timári
- Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny 1/a, H-1117 Budapest, Hungary, and Sanofi, Chinoin Zrt, Tó utca 1-4, H-1045 Budapest, Hungary
| | - Zoltán Novák
- Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny 1/a, H-1117 Budapest, Hungary, and Sanofi, Chinoin Zrt, Tó utca 1-4, H-1045 Budapest, Hungary
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53
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Task-specific nitrite and azide ionic liquids for the efficient one-pot synthesis of 1,2,3-triazoles from the aniline derivatives. Mol Divers 2012; 16:319-23. [DOI: 10.1007/s11030-012-9366-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2011] [Accepted: 03/01/2012] [Indexed: 10/28/2022]
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54
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Li S, Zhong W, Li Z, Meng X. Unprecedented synthesis, in vitro and in vivo anti-cancer evaluation of novel triazolonaphthalimide derivatives. Eur J Med Chem 2012; 47:546-52. [DOI: 10.1016/j.ejmech.2011.11.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2011] [Revised: 10/18/2011] [Accepted: 11/11/2011] [Indexed: 11/17/2022]
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55
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56
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Bhunia A, Yetra SR, Biju AT. Recent advances in transition-metal-free carbon–carbon and carbon–heteroatom bond-forming reactions using arynes. Chem Soc Rev 2012; 41:3140-52. [DOI: 10.1039/c2cs15310f] [Citation(s) in RCA: 543] [Impact Index Per Article: 45.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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57
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Dürüst Y, Karakuş H, Kaiser M, Tasdemir D. Synthesis and anti-protozoal activity of novel dihydropyrrolo[3,4-d][1,2,3]triazoles. Eur J Med Chem 2011; 48:296-304. [PMID: 22217867 DOI: 10.1016/j.ejmech.2011.12.028] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 11/05/2011] [Accepted: 12/20/2011] [Indexed: 10/14/2022]
Abstract
1,2,4-Oxadiazole and 1,2,3-triazole containing heterocyclic compounds continue to gain interest in synthesis of chemical entities and exhibit various biological activities as anti-protozoal and anti-cancer agents. By using the principle of bioisosterism, a series of novel oxadiazolyl pyrrolo triazole diones; namely, (3aS,6aR)-1-((3-(4-substituted phenyl)-1,2,4-oxadiazol-5-yl)methyl)-5-phenyl-1,6a-dihydropyrrolo[3,4-d][1,2,3] triazole-4,6(3aH,5H)-diones (5a-k) was designed and synthesized by the 1,3-dipolar cycloaddition reaction of novel 5-azidomethyl 3-aryl substituted 1,2,4-oxadiazoles (4a-k) with N-phenyl maleimide. The structures of all the cycloadducts were elucidated by means of spectroscopic methods and physical characteristics. The in vitro anti-protozoal and cytotoxic activities of these novel heterocyclic compounds were investigated.
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Affiliation(s)
- Yaşar Dürüst
- Department of Chemistry, Abant İzzet Baysal University, TR-14280 Bolu, Turkey.
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58
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McAusland D, Seo S, Pintori DG, Finlayson J, Greaney MF. The Benzyne Fischer-Indole Reaction. Org Lett 2011; 13:3667-9. [DOI: 10.1021/ol201413r] [Citation(s) in RCA: 93] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Donald McAusland
- University of Edinburgh, School of Chemistry, Joseph Black Building, King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, U.K., and AstraZeneca, Alderley Park, Macclesfield, SK10 4TG, U.K
| | - Sangwon Seo
- University of Edinburgh, School of Chemistry, Joseph Black Building, King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, U.K., and AstraZeneca, Alderley Park, Macclesfield, SK10 4TG, U.K
| | - Didier G. Pintori
- University of Edinburgh, School of Chemistry, Joseph Black Building, King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, U.K., and AstraZeneca, Alderley Park, Macclesfield, SK10 4TG, U.K
| | - Jonathan Finlayson
- University of Edinburgh, School of Chemistry, Joseph Black Building, King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, U.K., and AstraZeneca, Alderley Park, Macclesfield, SK10 4TG, U.K
| | - Michael F. Greaney
- University of Edinburgh, School of Chemistry, Joseph Black Building, King’s Buildings, West Mains Road, Edinburgh, EH9 3JJ, U.K., and AstraZeneca, Alderley Park, Macclesfield, SK10 4TG, U.K
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59
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Uhlig N, Li CJ. Alkynes as an eco-compatible “on-call” functionality orthogonal to biological conditions in water. Chem Sci 2011. [DOI: 10.1039/c1sc00164g] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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60
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Zhou J, He J, Wang B, Yang W, Ren H. 1,7-Palladium Migration via C−H Activation, Followed by Intramolecular Amination: Regioselective Synthesis of Benzotriazoles. J Am Chem Soc 2011; 133:6868-70. [DOI: 10.1021/ja2007438] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun Zhou
- Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Jianjun He
- Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Binjie Wang
- Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Weijun Yang
- Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
| | - Hongjun Ren
- Department of Chemistry, Zhejiang University, 38 Zheda Road, Hangzhou 310027, P. R. China
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61
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Ren H, Luo Y, Ye S, Wu J. Silver Triflate Catalyzed Reaction of 2-Alkynylbenzaldoxime with Aryne. Org Lett 2011; 13:2552-5. [DOI: 10.1021/ol200629y] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Hui Ren
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Yong Luo
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Shengqing Ye
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | - Jie Wu
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China, and State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
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62
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Kumar RK, Ali MA, Punniyamurthy T. Pd-Catalyzed C−H Activation/C−N Bond Formation: A New Route to 1-Aryl-1H-benzotriazoles. Org Lett 2011; 13:2102-5. [DOI: 10.1021/ol200523a] [Citation(s) in RCA: 69] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rapolu Kiran Kumar
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
| | - Md Ashif Ali
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, India
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63
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Kale RR, Prasad V, Hussain H, Tiwari VK. Facile route for N 1-aryl benzotriazoles from diazoamino arynes via CuI-mediated intramolecular N-arylation. Tetrahedron Lett 2010; 51:5740-5743. [PMID: 32287442 PMCID: PMC7111836 DOI: 10.1016/j.tetlet.2010.08.083] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2010] [Revised: 08/25/2010] [Accepted: 08/27/2010] [Indexed: 10/27/2022]
Abstract
A facile and high-yielding protocol for diverse benzotriazoles through intramolecular N-arylation of different o-chloro-1,2,3-benzotriazenes using CuI/Cs2CO3 has been developed.
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Affiliation(s)
| | | | | | - Vinod K. Tiwari
- Department of Chemistry, Centre of Advanced Study, Banaras Hindu University, Varanasi 221 005, India
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64
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Debets MF, van der Doelen CWJ, Rutjes FPJT, van Delft FL. Azide: a unique dipole for metal-free bioorthogonal ligations. Chembiochem 2010; 11:1168-84. [PMID: 20455238 DOI: 10.1002/cbic.201000064] [Citation(s) in RCA: 189] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Covalently bound azide on a (small) organic molecule or a (large) biomolecular structure has proven an important handle for bioconjugation. Azides are readily introduced, small, and stable, yet undergo smooth ligation with a range of reactive probes under mild conditions. In particular, the potential of azides to undergo metal-free reactions with strained unsaturated systems has inspired the development of an increasing number of reactive probes, which are comprehensively summarized here. For each individual probe, the synthetic preparation is described, together with reaction kinetics and the full range of applications, from materials science to glycoprofiling. Finally, a qualitative and quantitative comparison of azido-reactive probes is provided.
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Affiliation(s)
- Marjoke F Debets
- Radboud University Nijmegen, Institute for Molecules and Materials, Heyendaalseweg 135, 6525 AJ Nijmegen, The Netherlands
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65
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Yan SJ, Liu YJ, Chen YL, Liu L, Lin J. An efficient one-pot synthesis of heterocycle-fused 1,2,3-triazole derivatives as anti-cancer agents. Bioorg Med Chem Lett 2010; 20:5225-8. [DOI: 10.1016/j.bmcl.2010.06.141] [Citation(s) in RCA: 100] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2010] [Revised: 06/12/2010] [Accepted: 06/30/2010] [Indexed: 11/27/2022]
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66
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Wu C, Fang Y, Larock RC, Shi F. Synthesis of 2H-indazoles by the [3 + 2] cycloaddition of arynes and sydnones. Org Lett 2010; 12:2234-7. [PMID: 20394430 DOI: 10.1021/ol100586r] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A rapid and efficient synthesis of 2H-indazoles has been developed, which involves the [3 + 2] dipolar cycloaddition of arynes and sydnones. The process proceeds under mild reaction conditions in good to excellent yields.
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Affiliation(s)
- Chunrui Wu
- Key Laboratory of Natural Medicine and Immuno-Engineering of Henan Province, Henan University, Jinming Campus, Kaifeng, Henan 475004, China PR
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67
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Liu QL, Wen DD, Hang CC, Li QL, Zhu YM. A Novel and Regiospecific Synthesis of 1-Aryl-1H-benzotriazoles via Copper(I)-Catalyzed Intramolecular Cyclization Reaction. Helv Chim Acta 2010. [DOI: 10.1002/hlca.200900384] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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68
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Spiteri C, Keeling S, Moses JE. New Synthesis of 1-Substituted-1H-indazoles via 1,3-Dipolar Cycloaddition of in situ Generated Nitrile Imines and Benzyne. Org Lett 2010; 12:3368-71. [DOI: 10.1021/ol101150t] [Citation(s) in RCA: 122] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Christian Spiteri
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, United Kingdom, and GlaxoSmithKline, Research Medicines Centre, Stevenage, SG1 2NY, United Kingdom
| | - Steve Keeling
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, United Kingdom, and GlaxoSmithKline, Research Medicines Centre, Stevenage, SG1 2NY, United Kingdom
| | - John E. Moses
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD, United Kingdom, and GlaxoSmithKline, Research Medicines Centre, Stevenage, SG1 2NY, United Kingdom
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69
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Sharma P, Moses JE. Ethynyldiisopropylsilyl: A New Alkynylsilane Protecting Group and “Click” Linker. Org Lett 2010; 12:2860-3. [DOI: 10.1021/ol100968t] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pallavi Sharma
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD
| | - John E. Moses
- School of Chemistry, University of Nottingham, Nottingham, NG7 2RD
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70
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Spiteri C, Mason C, Zhang F, Ritson DJ, Sharma P, Keeling S, Moses JE. An efficient entry to 1,2-benzisoxazoles via 1,3-dipolar cycloaddition of in situ generated nitrile oxides and benzyne. Org Biomol Chem 2010; 8:2537-42. [PMID: 20372741 DOI: 10.1039/b927235f] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient protocol for the synthesis of a range of 1,2-benzisoxazoles using an improved 1,3-dipolar cycloaddition of nitrile oxides and benzyne is described. Key to the procedure is the in situ generation of the reactive nitrile oxide and benzyne reactants simultaneously.
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Affiliation(s)
- Christian Spiteri
- School of Chemistry, University of Nottingham, University Park, Nottingham, NG7 2RD, UK
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71
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72
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Pintori DG, Greaney MF. Insertion of benzene rings into the amide bond: one-step synthesis of acridines and acridones from aryl amides. Org Lett 2010; 12:168-71. [PMID: 19954170 DOI: 10.1021/ol902568x] [Citation(s) in RCA: 139] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Insertion of benzene rings into the amide bond using the reactive intermediate benzyne is described. Aromatic amides undergo smooth insertion when treated with O-triflatophenyl silane benzyne precursors, producing versatile aminobenzophenone products in good to excellent yield. The process is entirely metal-free and has been exemplified on the synthesis of biologically active acridones and acridines.
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Affiliation(s)
- Didier G Pintori
- School of Chemistry, University of Edinburgh, King's Buildings, West Mains Rd, Edinburgh EH9 3JJ, UK
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73
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Abstract
Many methods have been developed for generating benzyne. Convenient and reliable precursors extensively studied so far involve benzenediazonium-2-carboxylate and o-dihalobenzenes such as 1,2-bromofluorobenzene and 1,2-dibromobenzene. Recently, in addition to the above precursors, o-(trimethylsilyl)phenyl triflate has been put into frequent use for benzyne reactions, in which benzyne is efficiently generated under mild conditions using fluoride ion. Furthermore, o-(trimethylsilyl)phenyliodonium triflate has been developed as a more efficient benzyne precursor. This mini-review focusses on recent progress in benzyne chemistry from the viewpoint of organic synthesis. The methods for generating benzynes are classified by the conditions into four categories: basic conditions using strong bases, mild conditions using fluoride ion, thermolysis, and oxidation.
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74
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Balaban AT. Monocyclic Hetarenes with π-Electron Aromatic Sextet. ADVANCES IN HETEROCYCLIC CHEMISTRY 2010. [DOI: 10.1016/s0065-2725(10)09903-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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75
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Mukhopadhyay C, Tapaswi PK, Butcher RJ. A ligand-free copper (1) catalysed intramolecular N-arylation of diazoaminobenzenes in PEG-water: an expeditious protocol towards regiospecific 1-aryl benzotriazoles. Org Biomol Chem 2010; 8:4720-9. [DOI: 10.1039/c0ob00177e] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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76
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Spiteri C, Sharma P, Zhang F, Macdonald SJF, Keeling S, Moses JE. An improved synthesis of 1,2-benzisoxazoles: TBAF mediated 1,3-dipolar cycloaddition of nitrile oxides and benzyne. Chem Commun (Camb) 2010; 46:1272-4. [DOI: 10.1039/b922489k] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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77
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Howell LA, Howman A, O’Connell MA, Mueller A, Searcey M. Synthesis and evaluation of 9-aminoacridines derived from benzyne click chemistry. Bioorg Med Chem Lett 2009; 19:5880-3. [DOI: 10.1016/j.bmcl.2009.08.070] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2009] [Revised: 08/19/2009] [Accepted: 08/20/2009] [Indexed: 11/28/2022]
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78
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Li J, Wang D, Zhang Y, Li J, Chen B. Facile One-Pot Synthesis of 4,5-Disubstituted 1,2,3-(NH)-Triazoles through Sonogashira Coupling/1,3-Dipolar Cycloaddition of Acid Chlorides, Terminal Acetylenes, and Sodium Azide. Org Lett 2009; 11:3024-7. [DOI: 10.1021/ol901040d] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jihui Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Gansu Lanzhou 730000, P. R. China, and College of Chemical Engineering, Northwest Minoritise University, Gansu Lanzhou730030, P. R. China
| | - Dong Wang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Gansu Lanzhou 730000, P. R. China, and College of Chemical Engineering, Northwest Minoritise University, Gansu Lanzhou730030, P. R. China
| | - Yuanqing Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Gansu Lanzhou 730000, P. R. China, and College of Chemical Engineering, Northwest Minoritise University, Gansu Lanzhou730030, P. R. China
| | - Jiting Li
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Gansu Lanzhou 730000, P. R. China, and College of Chemical Engineering, Northwest Minoritise University, Gansu Lanzhou730030, P. R. China
| | - Baohua Chen
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Gansu Lanzhou 730000, P. R. China, and College of Chemical Engineering, Northwest Minoritise University, Gansu Lanzhou730030, P. R. China
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