1
|
Luz EQ, Silvério GL, Seckler D, Lima DB, Santana FS, Barbosa RV, Montes D'Oca CR, Rampon DS. One‐Pot Synthesis of 3‐Halo‐2‐organochalcogenylbenzo[
b
]chalcogenophenes from 1‐(2,2‐Dibromovinyl)‐2‐organochalcogenylbenzenes. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001586] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Eduardo Q. Luz
- Laboratory of Polymers and Catalysis (LaPoCa), Department of Chemistry Federal University of Paraná-UFPR P. O. Box 19061 Curitiba PR, 81531-980 Brazil
| | - Gabriel L. Silvério
- Laboratory of Polymers and Catalysis (LaPoCa), Department of Chemistry Federal University of Paraná-UFPR P. O. Box 19061 Curitiba PR, 81531-980 Brazil
| | - Diego Seckler
- Laboratory of Polymers and Catalysis (LaPoCa), Department of Chemistry Federal University of Paraná-UFPR P. O. Box 19061 Curitiba PR, 81531-980 Brazil
| | - David B. Lima
- Laboratory of Polymers and Catalysis (LaPoCa), Department of Chemistry Federal University of Paraná-UFPR P. O. Box 19061 Curitiba PR, 81531-980 Brazil
| | - Francielli S. Santana
- Department of Chemistry Federal University of Paraná-UFPR P. O. Box 19061 Curitiba PR, 81531-980 Brazil
| | - Ronilson V. Barbosa
- Laboratory of Polymers and Catalysis (LaPoCa), Department of Chemistry Federal University of Paraná-UFPR P. O. Box 19061 Curitiba PR, 81531-980 Brazil
| | - Caroline R. Montes D'Oca
- Laboratory of Polymers and Catalysis (LaPoCa), Department of Chemistry Federal University of Paraná-UFPR P. O. Box 19061 Curitiba PR, 81531-980 Brazil
| | - Daniel S. Rampon
- Laboratory of Polymers and Catalysis (LaPoCa), Department of Chemistry Federal University of Paraná-UFPR P. O. Box 19061 Curitiba PR, 81531-980 Brazil
| |
Collapse
|
2
|
YILDIRIM M, ERSATIR M, ARSLAN B, GİRAY ES. Cytotoxic and apoptotic potential of some coumarin and 2-amino-3-carbonitrile selenophene derivatives in prostate cancer. Turk J Chem 2021; 45:192-198. [PMID: 33737857 PMCID: PMC7955924 DOI: 10.3906/kim-2008-56] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/26/2020] [Indexed: 01/25/2023] Open
Abstract
3-acetyl coumarin derivatives (1a-d) are formed as a result of condensation of salicylaldehyde derivatives and ethyl acetoacetate and were converted into coumarin-selenophene hybrid compounds (2a-d) in the basic medium by modified Gewald reaction in the presence of malononitrile and selenium. Products are characterized by nuclear magnetic resonance (NMR). The prepared compounds are screened for their anticancer activity against DU-145 cell line. In addition, selected target compounds are evaluated for apoptosis and oxidative stress on DU-145 (prostate carcinoma) cell lines.
Collapse
Affiliation(s)
- Metin YILDIRIM
- Department of Pharmacy Services, Vocational School of Health Services, Tarsus University, MersinTurkey
| | - Mehmet ERSATIR
- Department of Chemistry, Arts and Science Faculty, Çukurova University, AdanaTurkey
| | - Badel ARSLAN
- Department of Stem Cell and Regenerative Medicine, Institute of Health Science, Mersin University, MersinTurkey
| | - Elife Sultan GİRAY
- Department of Chemistry, Arts and Science Faculty, Çukurova University, AdanaTurkey
| |
Collapse
|
3
|
Affiliation(s)
- Navjeet Kaur
- Department of Chemistry, Banasthali University, Banasthali, India
| |
Collapse
|
4
|
Saunthwal RK, Danodia AK, Patel M, Kumar S, Verma AK. Regioselective 5-endo-dig
Electrophilic Iodocyclization of Enediynes: A Convenient Route to Iodo-substituted Indenes and Cyclopenta-Fused Arenes. Chem Asian J 2016; 11:3001-3007. [DOI: 10.1002/asia.201601085] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Indexed: 12/25/2022]
Affiliation(s)
| | | | - Monika Patel
- Department of Chemistry; University of Delhi; Delhi- 110007 India
| | - Sushil Kumar
- Department of Chemistry; University of Delhi; Delhi- 110007 India
| | | |
Collapse
|
5
|
Matralis AN, Tsantrizos YS. Synthesis of Benzothiophene-Containing 10- and 11-Membered Cyclic Phostones. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600333] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Alexios N. Matralis
- Department of Chemistry; McGill University; 801 Sherbrooke Street West H3A 0B8 Montreal QC Canada
| | - Youla S. Tsantrizos
- Department of Chemistry; McGill University; 801 Sherbrooke Street West H3A 0B8 Montreal QC Canada
- Department of Biochemistry; McGill University; 3649 Promenade Sir William Osler H3G 0B1 Montreal QC Canada
| |
Collapse
|
6
|
Aggarwal T, Kumar S, Verma AK. Iodine-mediated synthesis of heterocycles via electrophilic cyclization of alkynes. Org Biomol Chem 2016; 14:7639-53. [DOI: 10.1039/c6ob01054g] [Citation(s) in RCA: 96] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Syntheses of heterocyclesvia5-exoor 6-endo-digiodocyclizations from alkynes.
Collapse
Affiliation(s)
- Trapti Aggarwal
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Sonu Kumar
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Research Laboratory
- Department of Chemistry
- University of Delhi
- Delhi
- India
| |
Collapse
|
7
|
Kesharwani T, Kornman CT, Tonnaer AL, Royappa AD. Green synthesis of benzo[b]thiophenes via iron(III) mediated 5-endo-dig iodocyclization of 2-alkynylthioanisoles. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.12.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
8
|
Roehrs JA, Pistoia RP, Back DF, Zeni G. Diorganyl Dichalcogenides-Promoted Nucleophilic Closure of 1,4-Diyn-3-ols: Synthesis of 2-Benzoyl Chalcogenophenes. J Org Chem 2015; 80:12470-81. [PMID: 26561717 DOI: 10.1021/acs.joc.5b02334] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report here the preparation of chalcogenophene derivatives via cyclization reactions of diynols promoted by diorganyl dichalcogenides and a halogen source. Different chalcogenophenes, such as 4-halo-selenophenes, 4-butylselenyl-selenophenes, halo-thiophenes, and 4-methylthio-thiophenes, were selectively prepared in good yields from the same starting materials. The results revealed that the halogen source had a significant effect on the proportion of 4-bromo-selenophenes and 4-butylselenyl-selenophenes. The best yields of 4-iodo-selenophenes were obtained with iodine as a halogen source, while the use of NBS gave exclusively the 4-butylselenyl-selenophenes. The experiments also revealed that the cyclization reaction to form 4-halo-thiophene derivatives can also be controlled changing the ratios of reagents. The 4-iodo-thiophenes were exclusively obtained by using dimethyl disulfide (2.0 equiv) and iodine (1.5 equiv), while the 4-bromo-thiophenes were obtained when the reaction was carried out with a 1.5 molar ratio of dimethyl disulfide and a halogen source. In addition, the reaction of diynols with an excess of dimethyl disulfide in the presence of NBS gave the 4-methylthio-thiophenes as sole products. We also studied the application of chalcogenophenes obtained as starting materials in the Suzuki, Sonogashira, and Ullmann cross-coupling reactions.
Collapse
Affiliation(s)
- Juliano A Roehrs
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios and ‡Laboratório de Materiais Inorgânicos, CCNE, Universidade Federal de Santa Maria , Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Renan P Pistoia
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios and ‡Laboratório de Materiais Inorgânicos, CCNE, Universidade Federal de Santa Maria , Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Davi F Back
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios and ‡Laboratório de Materiais Inorgânicos, CCNE, Universidade Federal de Santa Maria , Santa Maria, Rio Grande do Sul 97105-900, Brazil
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios and ‡Laboratório de Materiais Inorgânicos, CCNE, Universidade Federal de Santa Maria , Santa Maria, Rio Grande do Sul 97105-900, Brazil
| |
Collapse
|
9
|
Kaur N. Palladium-Catalyzed Approach to the Synthesis ofS-heterocycles. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2015. [DOI: 10.1080/01614940.2015.1082824] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
10
|
Volpe R, Aurelio L, Gillin MG, Krenske EH, Flynn BL. Mapping the Interactions of I2, I., I−, and I+with Alkynes and Their Roles in Iodocyclizations. Chemistry 2015; 21:10191-9. [DOI: 10.1002/chem.201500384] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Indexed: 01/24/2023]
|
11
|
Acharya A, Vijay Kumar S, Saraiah B, Ila H. One-Pot Synthesis of Functionalized Benzo[b]thiophenes and Their Hetero-Fused Analogues via Intramolecular Copper-Catalyzed S-Arylation of In Situ Generated Enethiolates. J Org Chem 2015; 80:2884-92. [DOI: 10.1021/acs.joc.5b00032] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Anand Acharya
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - S. Vijay Kumar
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - B. Saraiah
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| | - H. Ila
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore 560064, India
| |
Collapse
|
12
|
Shankar D, Jaipal K, Sridhar B, Chary RN, Prabhakar S, Giribabu L, Likhar PR. Intramolecular cyclization assisted oxidative addition: synthesis of octahedral cycloplatinated methyl complexes. RSC Adv 2015. [DOI: 10.1039/c4ra17066k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cycloplatination of XMeC6H4CCC-(Rf) (N-4-OCH3C6H4) [X = S, Se and Rf = perfluoroalkyl groups] with PtCl2 gave a monomeric octahedral Pt(iv) complex. Emission and reactivity studies of the Pt(iv) complexes are discussed.
Collapse
Affiliation(s)
- D. Shankar
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - K. Jaipal
- Solar Cell Gp
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - B. Sridhar
- X-ray Crystallography Centre
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - R. Nagarjuna Chary
- National Centre for Mass Spectrometry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - S. Prabhakar
- National Centre for Mass Spectrometry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - L. Giribabu
- Solar Cell Gp
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Pravin R. Likhar
- Organometallic Gp
- Inorganic and Physical Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| |
Collapse
|
13
|
Aurelio L, Volpe R, Halim R, Scammells PJ, Flynn BL. Synthesis of Thieno-Fused Heterocycles through Reiterative Iodocyclization. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400072] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
14
|
Racharlawar SS, Shankar D, Karkhelikar MV, Sridhar B, Likhar PR. Intramolecular heterocyclization and cyclopalladation of selenoanisole substituted propargyl imines: Synthesis and reactivity of Pd–C bond towards alkynes. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.01.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
15
|
Fang Z, Liao P, Yang Z, Wang Y, Zhou B, Yang Y, Bi X. Synthesis of Dihydrothiophenes and Thiophenes by the Strategic Use of 2-Vinylidene-1,3-dithiolane as a Masked Thiolate Anion. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301624] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
16
|
Monleón A, Blay G, Domingo LR, Muñoz MC, Pedro JR. Synthesis of Densely Functionalised 5-Halogen-1,3-oxazin-2-ones by Halogen-Mediated Regioselective Cyclisation ofN-Cbz-Protected Propargylic Amines: A Combined Experimental and Theoretical Study. Chemistry 2013; 19:14852-60. [DOI: 10.1002/chem.201302089] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Indexed: 11/07/2022]
|
17
|
Halim R, Aurelio L, Scammells PJ, Flynn BL. Scaffold-divergent synthesis of ring-fused indoles, quinolines, and quinolones via iodonium-induced reaction cascades. J Org Chem 2013; 78:4708-18. [PMID: 23659428 DOI: 10.1021/jo400125p] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
N-(2-Iodophenyl)imines A are readily formed from Schiff's base condensation of 2-iodoanilines with carbonyls and ketals. These imines provide useful substrates in scaffold-divergent synthesis through the attachment of an alkyne (Songashira coupling or acyl substitution of a Weinreb amide) followed by an iodonium-induced reaction cascade to give ring-fused indoles B, quinolines C, or quinolones D depending on the reaction conditions employed.
Collapse
Affiliation(s)
- Rosliana Halim
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | | | | | | |
Collapse
|
18
|
Kaur N, Kishore D. Solid-Phase Synthesis of Sulfur Containing Heterocycles. PHOSPHORUS SULFUR 2013. [DOI: 10.1080/10426507.2012.760563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
19
|
Lethu S, Bosc D, Mouray E, Grellier P, Dubois J. New protein farnesyltransferase inhibitors in the 3-arylthiophene 2-carboxylic acid series: diversification of the aryl moiety by solid-phase synthesis. J Enzyme Inhib Med Chem 2012; 28:163-71. [DOI: 10.3109/14756366.2011.643302] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Sébastien Lethu
- Institut de Chimie des Substances Naturelles, CNRS, Centre de Recherche de Gif,
Gif sur Yvette, France
| | - Damien Bosc
- Institut de Chimie des Substances Naturelles, CNRS, Centre de Recherche de Gif,
Gif sur Yvette, France
| | | | | | - Joëlle Dubois
- Institut de Chimie des Substances Naturelles, CNRS, Centre de Recherche de Gif,
Gif sur Yvette, France
| |
Collapse
|
20
|
Synthesis of benzothiophene derivatives from dilithio reagents, sulfur, and electrophiles via electrophilic cyclization. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.10.098] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
21
|
Gai BM, Stein AL, Roehrs JA, Bilheri FN, Nogueira CW, Zeni G. Synthesis and antidepressant-like activity of selenophenes obtained via iron(III)-PhSeSePh-mediated cyclization of Z-selenoenynes. Org Biomol Chem 2011; 10:798-807. [PMID: 22120691 DOI: 10.1039/c1ob06548c] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We present here the synthesis and antidepressant-like action of a series of 2,5-disubstituted-3-(organoseleno)-selenophenes prepared by a novel synthetic route, the FeCl(3)-diorganyl dichalcogenide-mediated intramolecular cyclization of (Z)-chalcogenoenynes. The cyclized products were obtained in good yields. The results showed that 2c, 2d, 2e and 2o, evaluated in the mouse forced-swimming test, elicited an antidepressant-like activity. The studies clearly show that the phenyl group at the 2-position and an organoselenium group at the 3-position of the selenophene ring are essential for the antidepressant-like activity of selenophenes. A close inspection of the results also revealed that the fluorophenyl portion in the organoselenium group is fundamental for the antidepressant-like action of this class of organochalcogens.
Collapse
Affiliation(s)
- Bibiana M Gai
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria-Rio Grande do Sul, Brasil
| | | | | | | | | | | |
Collapse
|
22
|
Han J, Wang Q, Chang X, Liu Y, Wang Y, Meng J. Insights into the reaction of trans-diarylethenes with thionyl chloride: a practical synthesis of chlorobenzo[b]thiophenes. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
23
|
Kaname M, Sashida H. Tandem addition–cyclization of o-ethynylphenyllithiums and isoselenocyanates: a convenient preparation of functionalized benzo[c]selenophenes. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.04.057] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
24
|
Chen X, Lu P, Wang Y. Four Iodine-Mediated Electrophilic Cyclizations of Rigid Parallel Triple Bonds Mapped from 1,8-Dialkynylnaphthalenes. Chemistry 2011; 17:8105-14. [DOI: 10.1002/chem.201100858] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Indexed: 11/08/2022]
|
25
|
Godoi B, Schumacher RF, Zeni G. Synthesis of heterocycles via electrophilic cyclization of alkynes containing heteroatom. Chem Rev 2011; 111:2937-80. [PMID: 21425870 DOI: 10.1021/cr100214d] [Citation(s) in RCA: 573] [Impact Index Per Article: 44.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Benhur Godoi
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria-Rio Grande do Sul, Brazil 97105-900
| | | | | |
Collapse
|
26
|
Schumacher RF, Rosário AR, Souza ACG, Acker CI, Nogueira CW, Zeni G. The potential antioxidant activity of 2,3-dihydroselenophene, a prototype drug of 4-aryl-2,3-dihydroselenophenes. Bioorg Med Chem 2011; 19:1418-25. [PMID: 21288725 DOI: 10.1016/j.bmc.2011.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2010] [Revised: 01/04/2011] [Accepted: 01/05/2011] [Indexed: 10/18/2022]
Abstract
Here we present our results in palladium cross-coupling reaction of aryl boronic acids with 4-iodo-2,3-dihydroselenophene derivatives. The cross-coupled products were obtained in satisfactory yields. A dehydrogenation of 4,5-diphenyl-2,3-dihydroselenophene was activated by DDQ and the 2,3-diarylselenophene was obtained in good yield. Regarding the antioxidant activity, the selenophene derivative 3a was effective in counteracting lipid and protein oxidation as well as scavenging ABTS radical. The findings of the present study indicate that 3a is a prototype for future drug development programs to treat disorders mediated by reactive oxygen species.
Collapse
Affiliation(s)
- Ricardo F Schumacher
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, Santa Maria, Rio Grande do Sul, CEP 97105-900, Brazil
| | | | | | | | | | | |
Collapse
|
27
|
Base-free NIS promoted electrophilic cyclization of alkynes: an efficient synthesis of iodo substituted pyrano[4,3-b]quinolines. Tetrahedron 2011. [DOI: 10.1016/j.tet.2010.10.081] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
28
|
Huang H, Li J, Zhao W, Mei Y, Duan Z. Palladium-catalyzed three-component domino reaction for the preparation of benzo[b]thiophene and related compounds. Org Biomol Chem 2011; 9:5036-8. [DOI: 10.1039/c1ob05571b] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
29
|
Regioselective synthesis of pyridoquinolones and pyridocoumarins via molecular iodine-mediated 6-endo-dig electrophilic cylization. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.11.066] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
30
|
Verma AK, Rustagi V, Aggarwal T, Singh AP. Iodine-Mediated Solvent-Controlled Selective Electrophilic Cyclization and Oxidative Esterification of o-Alkynyl Aldehydes: An Easy Access to Pyranoquinolines, Pyranoquinolinones, and Isocumarins. J Org Chem 2010; 75:7691-703. [DOI: 10.1021/jo101526b] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | | | - Amit P. Singh
- Bio-inorganic Chemistry Research Laboratory, Department of Chemistry
| |
Collapse
|
31
|
Rosário AR, Schumacher RF, Gay BM, Menezes PH, Zeni G. Synthesis and Reactivity of 3-Alkynyldihydroselenophene Derivatives. European J Org Chem 2010. [DOI: 10.1002/ejoc.201000588] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
32
|
Schumacher RF, Rosário AR, Souza ACG, Menezes PH, Zeni G. Synthesis of 2,3-Dihydroselenophene and Selenophene Derivatives by Electrophilic Cyclization of Homopropargyl Selenides. Org Lett 2010; 12:1952-5. [DOI: 10.1021/ol1003753] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ricardo F. Schumacher
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, 97105-900, Santa Maria, RS, Brazil, and Universidade Federal de Pernambuco, Departamento de Química Fundamental, Recife, Pernambuco, Brazil, 50670-901
| | - Alisson R. Rosário
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, 97105-900, Santa Maria, RS, Brazil, and Universidade Federal de Pernambuco, Departamento de Química Fundamental, Recife, Pernambuco, Brazil, 50670-901
| | - Ana Cristina G. Souza
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, 97105-900, Santa Maria, RS, Brazil, and Universidade Federal de Pernambuco, Departamento de Química Fundamental, Recife, Pernambuco, Brazil, 50670-901
| | - Paulo H. Menezes
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, 97105-900, Santa Maria, RS, Brazil, and Universidade Federal de Pernambuco, Departamento de Química Fundamental, Recife, Pernambuco, Brazil, 50670-901
| | - Gilson Zeni
- Laboratório de Síntese, Reatividade, Avaliação Farmacológica e Toxicológica de Organocalcogênios, CCNE, UFSM, 97105-900, Santa Maria, RS, Brazil, and Universidade Federal de Pernambuco, Departamento de Química Fundamental, Recife, Pernambuco, Brazil, 50670-901
| |
Collapse
|
33
|
The evaluation of solution- and solid-phase approaches to the divergent synthesis cinnoline and phenanthrene ring systems: SCS-09 special issue-combinatorial approaches to discovery. Mol Divers 2010; 15:83-9. [PMID: 20340044 DOI: 10.1007/s11030-010-9235-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2009] [Accepted: 01/25/2010] [Indexed: 10/19/2022]
Abstract
Cinnoline and phenanthrene ring systems have been synthesized from a set of readily available substrates using functional group tolerant reactions. This approach proved successful in both solution- and solid-phase synthesis for phenanthrenes but was limited to solution-phase synthesis for cinnolines. The described approaches to these ring systems complements related approaches to other scaffolds that can be readily accessed from the same substrates using slight variations in the applied chemistry.
Collapse
|
34
|
Abstract
A simple, straightforward strategy for the synthesis of polyheterocyclic compounds (PHCs) is reported, which involves iterative cycles of palladium-catalyzed Sonogashira coupling, followed by iodocyclization using I(2) or ICl. A variety of heterocyclic units, including benzofurans, benzothiophenes, indoles, and isocoumarins, can be efficiently incorporated under mild reaction conditions. In addition, variations of this strategy afford a variety of linked and fused PHCs.
Collapse
Affiliation(s)
- Saurabh Mehta
- Department of Chemistry, Iowa State University, Ames, Iowa 50011
| | | |
Collapse
|
35
|
Mancuso R, Mehta S, Gabriele B, Salerno G, Jenks WS, Larock RC. A simple and mild synthesis of 1H-isochromenes and (Z)-1-alkylidene-1,3-dihydroisobenzofurans by the iodocyclization of 2-(1-alkynyl)benzylic alcohols. J Org Chem 2010; 75:897-901. [PMID: 20043652 PMCID: PMC2813916 DOI: 10.1021/jo902333y] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A variety of iodo-substituted isochromenes, dihydroisobenzofurans, and pyranopyridines are readily prepared in good to excellent yields under mild conditions by the iodocyclization of readily available 2-(1-alkynyl)benzylic alcohols or 2-(1-alkynyl)-3-(hydroxymethyl)pyridines. Reactions are carried out in MeCN at 25 degrees C with 3 equiv of I(2) as the iodine source and NaHCO(3) (3 equiv) as the base. The regiochemical outcome of the reaction strongly depends on the substitution pattern of the starting material. In particular, the 5-exo-dig cyclization mode, leading to dihydroisobenzofurans, is observed in the case of substrates bearing a tertiary alcoholic group, owing to the gem-dialkyl effect, while the 6-endo-dig cyclization mode, leading to isochromene or pyranopyridines, is the usually preferred pathway in the case of substrates bearing a primary or secondary alcoholic group.
Collapse
Affiliation(s)
- Raffaella Mancuso
- Dipartimento di Chimica, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy
| | - Saurabh Mehta
- Department of Chemistry, Iowa State University, Ames, Iowa 50011 USA
| | - Bartolo Gabriele
- Dipartimento di Scienze Farmaceutiche, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy
| | - Giuseppe Salerno
- Dipartimento di Chimica, Università della Calabria, 87036 Arcavacata di Rende (CS), Italy
| | - William S. Jenks
- Department of Chemistry, Iowa State University, Ames, Iowa 50011 USA
| | - Richard C. Larock
- Department of Chemistry, Iowa State University, Ames, Iowa 50011 USA
| |
Collapse
|
36
|
|
37
|
Verma AK, Aggarwal T, Rustagi V, Larock RC. Iodine-catalyzed and solvent-controlled selective electrophilic cyclization and oxidative esterification of ortho-alkynyl aldehydes. Chem Commun (Camb) 2010; 46:4064-6. [DOI: 10.1039/b927185f] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
38
|
Chen Y, Cho CH, Shi F, Larock RC. Synthesis of 3-sulfenyl- and 3-selenylindoles by the Pd/Cu-catalyzed coupling of N,N-dialkyl-2-iodoanilines and terminal alkynes, followed by n-Bu(4)NI-induced electrophilic cyclization. J Org Chem 2009; 74:6802-11. [PMID: 19663396 DOI: 10.1021/jo9014003] [Citation(s) in RCA: 94] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
3-Sulfenyl- and 3-selenylindoles are readily synthesized by a two-step process involving the palladium/copper-catalyzed crossing coupling of N,N-dialkyl-ortho-iodoanilines and terminal alkynes and subsequent electrophilic cyclization of the resulting N,N-dialkyl-ortho-(1-alkynyl)anilines with arylsulfenyl chlorides or arylselenyl chlorides. The presence of a stoichiometric amount of n-Bu(4)NI is crucial to the success of the electrophilic cyclization. A variety of 3-sulfenyl- and 3-selenylindole derivatives bearing alkyl, vinylic, aryl, and heteroaryl substituents have been prepared in good to excellent yields (up to 99%). By employing N,N-dibenzyl-ortho-iodoanilines, a 3-sulfenyl-N-H-indole has been successfully prepared. In addition, 3-sulfonyl- and 3-sulfinylindoles have also been successfully prepared by facile oxidation of the corresponding 3-sulfenylindoles.
Collapse
Affiliation(s)
- Yu Chen
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA
| | | | | | | |
Collapse
|
39
|
Godoi B, Neto JS, Sperança A, Acker CI, Nogueira CW, Zeni G. Synthesis of 3-aryl-4-chalcogen-2H-benzopyrans from 3-iodo-4-chalcogen-2H-benzopyrans using a Suzuki cross-coupling. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.07.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
40
|
Mehta S, Waldo JP, Larock RC. Competition studies in alkyne electrophilic cyclization reactions. J Org Chem 2009; 74:1141-7. [PMID: 19105638 DOI: 10.1021/jo802196r] [Citation(s) in RCA: 167] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The relative reactivity of various functional groups toward alkyne electrophilic cyclization reactions has been studied. The required diarylalkynes have been prepared by consecutive Sonogashira reactions of appropriately substituted aryl halides and competitive cyclizations have been performed using I(2), ICl, NBS and PhSeCl as electrophiles. The results indicate that the nucleophilicity of the competing functional groups, polarization of the alkyne triple bond, and the cationic nature of the intermediate are the most important factors in determining the outcome of these reactions.
Collapse
Affiliation(s)
- Saurabh Mehta
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA
| | | | | |
Collapse
|
41
|
Cho CH, Neuenswander B, Lushington GH, Larock RC. Parallel synthesis of a multi-substituted benzo[b]furan library. ACTA ACUST UNITED AC 2008; 10:941-7. [PMID: 18937516 DOI: 10.1021/cc800120y] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The solution-phase parallel synthesis of a 121-member library of multi-substituted benzo[ b]furans is described. 2,3,5-Trisubstituted benzo[ b]furans have been prepared by the palladium-catalyzed substitution of 3-iodobenzofurans by Suzuki-Miyaura, carbonylative Suzuki, Sonogashira, Heck, and carboalkoxylation chemistry. The 3-iodobenzofurans are readily prepared in good to excellent yields by the palladium/copper-catalyzed cross-coupling of various o-iodoanisoles and terminal alkynes, followed by electrophilic cyclization with ICl.
Collapse
Affiliation(s)
- Chul-Hee Cho
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, USA
| | | | | | | |
Collapse
|
42
|
Garud DR, Koketsu M. Synthesis of 3-Selena-1-dethiacephems and Selenazepines via Iodocyclization. Org Lett 2008; 10:3319-22. [DOI: 10.1021/ol801010y] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dinesh R. Garud
- Department of Chemistry, Faculty of Engineering, Gifu University, Gifu-501-1193, Japan, and Division of Instrumental Analysis, Life Science Research Center, Gifu University, Gifu-501-1193, Japan
| | - Mamoru Koketsu
- Department of Chemistry, Faculty of Engineering, Gifu University, Gifu-501-1193, Japan, and Division of Instrumental Analysis, Life Science Research Center, Gifu University, Gifu-501-1193, Japan
| |
Collapse
|
43
|
Halim R, Scammells PJ, Flynn BL. Alternating Iodonium-Mediated Reaction Cascades Giving Indole- And Quinoline-Containing Polycycles. Org Lett 2008; 10:1967-70. [DOI: 10.1021/ol800202u] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rosliana Halim
- Medicinal Chemistry and Drug Action, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Peter J. Scammells
- Medicinal Chemistry and Drug Action, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| | - Bernard L. Flynn
- Medicinal Chemistry and Drug Action, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, VIC 3052, Australia
| |
Collapse
|
44
|
Inamoto K, Arai Y, Hiroya K, Doi T. Palladium-catalysed direct synthesis of benzo[b]thiophenes from thioenols. Chem Commun (Camb) 2008:5529-31. [DOI: 10.1039/b811362a] [Citation(s) in RCA: 127] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
45
|
Dolle RE, Le Bourdonnec B, Goodman AJ, Morales GA, Salvino JM, Zhang W. Comprehensive survey of chemical libraries for drug discovery and chemical biology: 2006. ACTA ACUST UNITED AC 2007; 9:855-902. [PMID: 17877417 DOI: 10.1021/cc700111e] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Roland E Dolle
- Adolor Corporation, 700 Pennsylvania Drive, Exton, Pennsylvania 19341, USA.
| | | | | | | | | | | |
Collapse
|
46
|
Jung N, Wiehn M, Bräse S. Multifunctional Linkers for Combinatorial Solid Phase Synthesis. Top Curr Chem (Cham) 2007. [DOI: 10.1007/128_2007_118] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
|