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de Oliveira Roberto CE, Pinheiro PF, de Assis Alves T, da Silva JA, Praça-Fontes MM, Soares TCB. Phytogenotoxicity of thymol and semisynthetic thymoxyacetic acid in pre/post emergence of model plants and weeds. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:38955-38969. [PMID: 36588132 DOI: 10.1007/s11356-022-24753-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 12/10/2022] [Indexed: 06/17/2023]
Abstract
Herbicides are commonly used to control weed. However, some plants are resistant to such products. To identify less harmful herbicides, it is crucial to search for different mechanisms of action. Thymol is an easily acquired allelopathic compound, capable of producing its respective semisynthetic derivative, thymoxyacetic acid. The aim of this study was to determine the effects of thymol and thymoxyacetic acid molecules as bioherbicides in greenhouse at the concentration of 3 mmol L-1 in pre- and postemergence applications in five species: Amaranthus viridis L., Cucumis sativus L., Lactuca sativa L., Eleusine indica L., and Sorghum bicolor L. The initial seedling development and DNA changes were analyzed. These molecules were contrasting with the solvent, in the negative control, and with the glyphosate, in the positive control, promoting phytogenotoxic activities. The toxic effect of thymoxyacetic acid was more effective in preemergence and thymol's in postemergence. We also observed a reduction in the germination speed index and root growth with a negative correlation to the increase in potassium leaching. Damage to the root and shoot of the seedlings was verified at the DNA level, and the phytotoxicity of the plants treated with the herbicide glyphosate was similar to the plants treated with the natural molecules tested. The bioherbicidal effect of thymol and thymoxyacetic acid exacerbates the reduction of the environmental impact caused by the disordered and increased use of residual pesticides.
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Affiliation(s)
- Carlos Eduardo de Oliveira Roberto
- Postgraduate Program in Agronomy at the Federal University of Espírito Santo. Alto Universitário, S/N. ZIP: 29.500-000, Alegre, ES, Brazil
| | - Patrícia Fontes Pinheiro
- Department of Chemistry, Federal University of Viçosa, Avenida Peter Henry Rolfs, S/N, Campus Universitário, ZIP: 36570-900, Viçosa, MG, Brazil
| | - Thammyres de Assis Alves
- Postgraduate Program in Genetics and Breeding, Federal University of Espírito Santo. Alto Universitário, S/N. ZIP: 29.500-000, Alegre, ES, Brazil
| | - Josimar Aleixo da Silva
- Postgraduate Program in Agronomy at the Federal University of Espírito Santo. Alto Universitário, S/N. ZIP: 29.500-000, Alegre, ES, Brazil
| | - Milene Miranda Praça-Fontes
- Postgraduate Program in Genetics and Breeding, Federal University of Espírito Santo. Alto Universitário, S/N. ZIP: 29.500-000, Alegre, ES, Brazil.
- Department of Biology, Federal University of Espírito Santo. Alto Universitário, S/N. ZIP: 29.500-000, Alegre, ES, Brazil.
| | - Taís Cristina Bastos Soares
- Postgraduate Program in Agronomy at the Federal University of Espírito Santo. Alto Universitário, S/N. ZIP: 29.500-000, Alegre, ES, Brazil
- Postgraduate Program in Genetics and Breeding, Federal University of Espírito Santo. Alto Universitário, S/N. ZIP: 29.500-000, Alegre, ES, Brazil
- Department of Pharmacy and Nutrition, Federal University of Espírito Santo. Alto Universitário, S/N. ZIP: 29.500-000, Alegre, ES, Brazil
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Mara Silva de Pádua G, Maria De Souza J, Celia Moura Sales M, Gomes de Vasconcelos L, Luiz Dall'Oglio E, Faraggi TM, Moreira Sampaio O, Campos Curcino Vieira L. Evaluation of Chalcone Derivatives as Photosynthesis and Plant Growth Inhibitors. Chem Biodivers 2021; 18:e2100226. [PMID: 33998137 DOI: 10.1002/cbdv.202100226] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Accepted: 05/14/2021] [Indexed: 12/30/2022]
Abstract
We report the evaluation of chalcone derivatives as photosystem II (PSII) and plant growth inhibitors. Chalcone derivatives were evaluated as PSII inhibitors through Chl a fluorescence measurement. (E)-Chalcone (6a) and (E)-3-(4-bromophenyl)-1-(4-fluorophenyl)prop-2-en-1-one (6j) showed the best results, reducing the performance index on absorption basis parameter (PIabs ) by 70 %. Additionally, the decrease of TR0 /RC and ET0 /RC parameters indicates that the chalcone derivatives limited the number of active PSII reaction centers and the amount of trapped energy within them. Compounds 6a and 6j both act as post-emergent herbicides at 50 μM, reducing the root biomass of the Ipomoea grandifolia weed by 72 % and 83 %, respectively, corroborating the fluorescence results. The selectivity against weeds as compared to valuable crops by compounds 6a and 6j were evaluated employing Zea mays and Phaseolus vulgaris plants. In these, our newly synthesized compounds showed no effects on biomass accumulation of roots and aerial parts when compared to the control, providing valuable evidence for the role of these compounds as selective inhibitors of the growth of undesired weeds.
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Affiliation(s)
| | | | | | | | | | - Tomer M Faraggi
- Product Metabolism Analytical Sciences, Syngenta Crop Protection, LLC, Greensboro, NC, USA
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Wang C, Liu H, Zhao W, Li P, Ji L, Liu R, Lei K, Xu X. Synthesis and Herbicidal Activity of 5-(1-Amino-2-phenoxyethylidene)barbituric Acid Derivatives. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202010042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sarhan AA, Haukka M, Barakat A, Boraei AT. A novel synthetic approach to pyran-2,4-dione scaffold production: Microwave-assisted dimerization, cyclization, and expeditious regioselective conversion into β-enamino-pyran-2,4-diones. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152660] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rego YF, Queiroz MP, Brito TO, Carvalho PG, de Queiroz VT, de Fátima Â, Macedo Jr. F. A review on the development of urease inhibitors as antimicrobial agents against pathogenic bacteria. J Adv Res 2018; 13:69-100. [PMID: 30094084 PMCID: PMC6077150 DOI: 10.1016/j.jare.2018.05.003] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/30/2018] [Accepted: 05/01/2018] [Indexed: 01/24/2023] Open
Abstract
Ureases are enzymes that hydrolyze urea into ammonium and carbon dioxide. They have received considerable attention due to their impacts on living organism health, since the urease activity in microorganisms, particularly in bacteria, are potential causes and/or factors contributing to the persistence of some pathogen infections. This review compiles examples of the most potent antiurease organic substances. Emphasis was given to systematic screening studies on the inhibitory activity of rationally designed series of compounds with the corresponding SAR considerations. Ureases of Canavalia ensiformis, the usual model in antiureolytic studies, are emphasized. Although the active site of this class of hydrolases is conserved among bacteria and vegetal ureases, the same is not observerd for allosteric site. Therefore, inhibitors acting by participating in interactions with the allosteric site are more susceptible to a potential lack of association among their inhibitory profile for different ureases. The information about the inhibitory activity of different classes of compounds can be usefull to guide the development of new urease inhibitors that may be used in future in small molecular therapy against pathogenic bacteria.
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Affiliation(s)
- Yuri F. Rego
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Marcelo P. Queiroz
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Tiago O. Brito
- Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Priscila G. Carvalho
- Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, Londrina, PR, Brazil
| | - Vagner T. de Queiroz
- Departamento de Química e Física, Centro de Ciências Exatas, Naturais e da Saúde, Universidade Federal do Espírito Santo, Alegre, ES, Brazil
| | - Ângelo de Fátima
- Departamento de Química, Instituto de Ciências Exatas, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Fernando Macedo Jr.
- Departamento de Química, Centro de Ciências Exatas, Universidade Estadual de Londrina, Londrina, PR, Brazil
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Chen KH, Lin TH, Hsu TE, Li YJ, Chen GH, Leu WJ, Guh JH, Lin CH, Huang JH. Ruthenium (II) complexes containing dehydroacetic acid and its imine derivative ligands. Synthesis, characterization and cancer cell growth anti-proliferation activity (GI50) study. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Abstract
Dehydroacetic acid is a common pyrone derivative used commercially as an antibacterial and antifungal agent. Based on the synthesis of dehydroacetic acid (1) from N-hydroxysuccinimdyl acetoacetate, a novel series of enamine-based derivatives were synthesised in order to improve the antibacterial activity of dehydroacetic acid. The antibacterial activities of the synthesised analogues were evaluated against Escherichia coli and Staphylococcus aureus. Derivative 4d (N-Ph) was identified as the most potent inhibitor of S. aureus growth. Overall, derivative 4b (N-Me) showed the best broad-spectrum activity with five-fold greater minimum inhibitory concentration and 11-fold greater minimum biocidal concentration against E. coli when compared to dehydroacetic acid, in addition to improved antibacterial activity against S. aureus.
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Saleh TS, Al-Bogami AS, Mekky AEM, Alkhathlan HZ. Sonochemical synthesis of novel pyrano[3,4-e][1,3]oxazines: A green protocol. ULTRASONICS SONOCHEMISTRY 2017; 36:474-480. [PMID: 28069235 DOI: 10.1016/j.ultsonch.2016.12.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Revised: 12/10/2016] [Accepted: 12/11/2016] [Indexed: 06/06/2023]
Abstract
The atom-efficient and green protocol for formation of pyrano[3,4-e][1,3]oxazines utilizing dimethyl carbonate under ultrasound irradiation in a presence of KF/basic alumina was reported. We provide a novel series of pyrano[3,4-e][1,3]oxazine derivatives interesting for biological screening tests. In general, it was found that ultrasound irradiations enable the reactions to occur which could not be carried out under silent conditions. These remarkable effects appeared in sonicated reactions can be reasonably interpreted in terms of acoustic cavitation phenomenon. Structures of the products were established on analytical and spectral data. This protocol offers several advantages attain many principles of green chemistry including, save energy, atom economy, clean reactions, inexpensive green reagent and use catalysts rather than stoichiometric reagents.
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Affiliation(s)
- Tamer S Saleh
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; Green Chemistry Department, National Research Centre, Dokki, Cairo 12622, Egypt.
| | - Abdullah S Al-Bogami
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
| | - Ahmed E M Mekky
- Chemistry Department, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
| | - Hamad Z Alkhathlan
- Chemistry Department, College of Science, King Saud University, P.O.Box 2455, Riyadh 11451, Saudi Arabia
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Rabahi A, Hamdi SM, Rachedi Y, Hamdi M, Talhi O, Almeida Paz FA, Silva AS, Fadila B, Malika H, Kamel T. 2D-NMR, X-ray crystallography and theoretical studies of the reaction mechanism for the synthesis of 1,5-benzodiazepines from dehydroacetic acid derivatives and o-phenylenediamines. J Mol Struct 2014. [DOI: 10.1016/j.molstruc.2013.12.082] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Seijas JA, Crecente-Campo J, Feás X, Vázquez-Tato MP. Microwave assisted synthesis, crystal structure and modelling of cytotoxic dehydroacetic acid enamine: a natural alkaloid from Fusarium incarnatum (HKI0504). RSC Adv 2014. [DOI: 10.1039/c4ra00582a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Synthesis and modelling of DHA enamine, its co-crystal structure is presents four-molecules clusters joined by π-stacking like masonry walls.
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Affiliation(s)
- Julio A. Seijas
- Departamento de Química Orgánica
- Facultad de Ciencias
- Universidad de Santiago de Compostela
- Lugo, Spain
| | - José Crecente-Campo
- Departamento de Química Orgánica
- Facultad de Ciencias
- Universidad de Santiago de Compostela
- Lugo, Spain
| | - Xesús Feás
- Departamento de Química Orgánica
- Facultad de Ciencias
- Universidad de Santiago de Compostela
- Lugo, Spain
| | - M. Pilar Vázquez-Tato
- Departamento de Química Orgánica
- Facultad de Ciencias
- Universidad de Santiago de Compostela
- Lugo, Spain
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Katta L, Sudarsanam P, Mallesham B, Reddy BM. Preparation of silica supported ceria–lanthana solid solutions useful for synthesis of 4-methylpent-1-ene and dehydroacetic acid. Catal Sci Technol 2012. [DOI: 10.1039/c2cy00551d] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Wang H, Zou Y, Zhao X, Shi D. A novel and convenient synthesis of 4-hydroxy-6-methyl-3-(1-(phenylimino) ethyl)-2H-pyran-2-one derivatives under ultrasound irradiation. ULTRASONICS SONOCHEMISTRY 2011; 18:1048-1051. [PMID: 21316287 DOI: 10.1016/j.ultsonch.2011.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2010] [Revised: 01/11/2011] [Accepted: 01/14/2011] [Indexed: 05/30/2023]
Abstract
A facile, efficient and environment-friendly protocol for the synthesis of 4-hydroxy-6-methyl-3-(1-(phenylimino)ethyl)-2H-pyran-2-one derivatives has been developed by the convenient ultrasound-mediated condensation of amine with dehydroacetic acid. This method provides several advantages over current reaction methodologies including a simple work-up procedure, shorter reaction times and higher yields.
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Affiliation(s)
- Huiyan Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, PR China
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Jacinto Demuner A, Moreira Valente VM, Almeida Barbosa LC, Rathi AH, Donohoe TJ, Thompson AL. Synthesis and phytotoxic activity of new pyridones derived from 4-hydroxy-6-methylpyridin-2(1H)-one. Molecules 2009; 14:4973-86. [PMID: 20032871 PMCID: PMC6255104 DOI: 10.3390/molecules14124973] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2009] [Revised: 11/24/2009] [Accepted: 11/30/2009] [Indexed: 11/22/2022] Open
Abstract
Commercial dehydroacetic acid was converted into 4-hydroxy-6-methylpyridin-2(1H)-one (3), which was then condensed with several aliphatic aldehydes to produce seven new title compounds in variable yields (35-92%). Reaction of 3 with alpha,beta-unsaturated aldehydes resulted in the formation of condensed pyran derivatives 4g' and 4h'. A mechanism is proposed to explain the formation of such compounds. The effects of all methylpyridin-2(1H)-one derivatives on the development of the dicotyledonous species Ipomoea grandifolia and Cucumis sativus and the monocotyledonous species Sorghum bicolor were evaluated. At the dose of 6.7 x 10(-8) mol a.i./g substrate the compounds showed some phytotoxic selectivity, being more active against the dicotyledonous species. These compounds can be used as lead structures for the development of more active phytotoxic products.
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Affiliation(s)
- Antonio Jacinto Demuner
- Department of Chemistry, Federal University of Vicosa, Av. P. H. Rolfs, s/n, 36570-000, Vicosa, MG, Brazil; E-Mails: (A.J.D.); (V.M.M.V.)
| | - Vania Maria Moreira Valente
- Department of Chemistry, Federal University of Vicosa, Av. P. H. Rolfs, s/n, 36570-000, Vicosa, MG, Brazil; E-Mails: (A.J.D.); (V.M.M.V.)
| | - Luiz Cláudio Almeida Barbosa
- Department of Chemistry, Federal University of Vicosa, Av. P. H. Rolfs, s/n, 36570-000, Vicosa, MG, Brazil; E-Mails: (A.J.D.); (V.M.M.V.)
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK; E-Mails: (A.H.R.); (T.J.D.); (A.L.T.)
| | - Akshat H. Rathi
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK; E-Mails: (A.H.R.); (T.J.D.); (A.L.T.)
| | - Timothy J. Donohoe
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK; E-Mails: (A.H.R.); (T.J.D.); (A.L.T.)
| | - Amber L. Thompson
- Department of Chemistry, University of Oxford, 12 Mansfield Road, Oxford OX1 3TA, UK; E-Mails: (A.H.R.); (T.J.D.); (A.L.T.)
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