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Leyva E, Moctezuma E, Baines KM, Noriega S, Pérez Flores F, Lara‐Pérez C. Identification of intermediate compounds and photodegradation mechanisms of omeprazole under the system UV/O
2. J PHYS ORG CHEM 2019. [DOI: 10.1002/poc.4024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Elisa Leyva
- Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí San Luis Potosí Mexico
| | - Edgar Moctezuma
- Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí San Luis Potosí Mexico
| | - Kim M. Baines
- Department of ChemistryUniversity of Western Ontario London Ontario Canada
| | - Saúl Noriega
- Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí San Luis Potosí Mexico
| | - Francisco Pérez Flores
- Instituto de QuímicaUniversidad Nacional Autónoma de México, Cd. Universitaria, Circuito Exterior Mexico City Mexico
| | - Carmen Lara‐Pérez
- Facultad de Ciencias QuímicasUniversidad Autónoma de San Luis Potosí San Luis Potosí Mexico
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Cucurbit[7]uril Inclusion Complexes with Benzimidazole Derivatives: A Computational Study. J SOLUTION CHEM 2018. [DOI: 10.1007/s10953-018-0812-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Katagi T. Direct photolysis mechanism of pesticides in water. JOURNAL OF PESTICIDE SCIENCE 2018; 43:57-72. [PMID: 30363143 PMCID: PMC6140697 DOI: 10.1584/jpestics.d17-081] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Accepted: 01/13/2018] [Indexed: 05/14/2023]
Abstract
Photodegradation is one of the most important abiotic transformations for pesticides in the aquatic environment, and the high energy of sunlight causes characteristic reactions such as bond scission, cyclization, and rearrangement, which are scarcely observed in hydrolysis and microbial degradation. This review deals with direct photolysis via excitation of a pesticide by absorbing natural or artificial sunlight in order to know its basic photochemistry, and indirect photolysis meaning either sensitization by dissolved organic matters or oxidation by reactive oxygen species is basically excluded. Several experimental approaches including spectroscopic techniques together with theoretical calculations are first discussed from the viewpoint of the reaction mechanisms in direct photolysis. Then, the typical photoreactions of pesticides are summarized by chemical classes and/or functional groups and discussed as far as possible in relation to their mechanisms.
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Affiliation(s)
- Toshiyuki Katagi
- Environmental Health Science Laboratory, Sumitomo Chemical Co., Ltd
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Koner AL, Ghosh I, Saleh N, Nau WM. Supramolecular encapsulation of benzimidazole-derived drugs by cucurbit[7]uril. CAN J CHEM 2011. [DOI: 10.1139/v10-079] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
UV–vis and NMR spectroscopic techniques were employed to demonstrate the ability of the synthetic macrocyclic host cucurbit[7]uril (CB7) to solubilize and stabilize widely used fungicides and anthelmintic drugs of the benzimidazole family in water, namely, albendazole (ABZ), carbendazim (CBZ), thiabendazole (TBZ), fuberidazole (FBZ), and the parent benzimidazole (BZ). CB7 binds the protonated forms of these guests very strongly (e.g., K = 2.6 × 107 L/mol for ABZ) but their neutral forms significantly more weakly (e.g., K = 6.5 × 104 L/mol for ABZ), which reflects a complexation-induced increase of their pKa values by 2.6 units for ABZ, 2.5 units for CBZ, 4.0 units for TBZ, 3.8 units for FBZ, and 3.5 units for BZ. The absolute drug solubilities increased upon complexation from 0.003 to 0.300 mmol/L for ABZ, from 0.160 to 1.12 mmol/L for CBZ, from 0.110 to 1.11 mmol/L for TBZ, and from 0.25 to 0.75 mmol/L for FBZ (for BZ, the solubility enhancement was found to be insignificant). Complexation by CB7 further improves the photostability of the drugs and alters their photophysical properties.
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Affiliation(s)
- Apurba L. Koner
- School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
- Department of Chemistry, College of Science, UAE University, P.O. Box 17551, Al-Ain, UAE
| | - Indrajit Ghosh
- School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
- Department of Chemistry, College of Science, UAE University, P.O. Box 17551, Al-Ain, UAE
| | - Na'il Saleh
- School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
- Department of Chemistry, College of Science, UAE University, P.O. Box 17551, Al-Ain, UAE
| | - Werner M. Nau
- School of Engineering and Science, Jacobs University Bremen, Campus Ring 1, D-28759 Bremen, Germany
- Department of Chemistry, College of Science, UAE University, P.O. Box 17551, Al-Ain, UAE
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Flow injection analysis for the determination of thiabendazole and fuberidazole in water by spectrofluorimetry. Mikrochim Acta 1997. [DOI: 10.1007/bf01242335] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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