1
|
Abuelhassan S, Abdel-Rahman AE, Gad MA, Youssef MAM, Abdel-Hafez SH, Bakhite EA. Pyridine Derivatives as Insecticides. Part 5. New Thieno[2,3- b]pyridines and Pyrazolo[3,4- b]pyridines Containing Mainly Ethyl Nicotinate Scaffold and Their Insecticidal Activity toward Aphis gossypii (Glover,1887). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:17271-17282. [PMID: 39052523 DOI: 10.1021/acs.jafc.4c03112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
Ethyl 5-cyano-1,6-dihydro-2-methyl-4-(2'-thienyl)-6-thioxonicotinate (A) was synthesized and reacted with ethyl chloroacetate in the presence of sodium acetate or sodium carbonate to give ethyl 5-cyano-6-((2-ethoxy-2-oxoethyl)thio)-2-methyl-4-(2'-thienyl)nicotinate (1a) or its isomeric thieno[2,3-b]pyridine 2a. 3-Aminothieno[2,3-b]pyridine-2-carboxamide 2b was also synthesized by the reaction of A with 2-chloroacetamide. The reaction of 1a with hydrazine hydrate in boiling ethanol gave acethydrazide 3. Heating ester 1a with hydrazine hydrate under neat conditions afforded 3-amino-1H-pyrazolo[3,4-b]pyridine 10. Compounds 2b, 3, and 10 were used as precursors for synthesizing other new thieno[2,3-b]pyridines and pyrazolo[3,4-b]pyridines containing mainly the ethyl nicotinate scaffold. Structures of all new compounds were confirmed by elemental and spectral analyses. Most of the obtained compounds were evaluated for their insecticidal activity toward the nymphs and adults of Aphis gossypii (Glover,1887). Some compounds such as 4, 9b, and 9c showed promising results. The effect of some sublethal concentrations, less than LC50, of compounds 4, 9b, and 9c on the examined Aphis was subjected to a further study. The results demonstrated that exposure of A. gossypii nymphs to sublethal concentrations of compounds 4, 9b, and 9c had noticeable effects on their biological parameters, i.e., nymphal instar duration, generation time, and adult longevity. The highest concentration C1 of all three compounds increased the nymphal instar duration and generation time and decreased adult longevity and vice versa.
Collapse
Affiliation(s)
- Suzan Abuelhassan
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Abdu E Abdel-Rahman
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agriculture Research Center, Giza 12112, Egypt
| | - Mohamed A M Youssef
- Research Institute of Plant Protection, Agriculture Research Center, Giza 12112, Egypt
| | - Shams H Abdel-Hafez
- Department of Chemistry, College of Science, Taif University, Taif 21944, Saudi Arabia
| | - Etify A Bakhite
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
| |
Collapse
|
2
|
Abd El-Lateef HM, Khalaf MM, Gouda M, Abdelhamid AA, Gad MA. Synthesis and Biological Evaluation of Benzamide Compounds as Insecticides Agents Against Spodoptera Frugiperda (Lepidoptera: Noctuidae). Chem Biodivers 2024; 21:e202400948. [PMID: 38899798 DOI: 10.1002/cbdv.202400948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2024] [Revised: 06/13/2024] [Accepted: 06/17/2024] [Indexed: 06/21/2024]
Abstract
Due to its severe damage, Spodoptera frugiperda is receiving attention as one of the biggest dangers to world food security. Although there are numerous insecticides that are widely and successfully used to control S. frugiperda, they do not have an immediate effect. In our work focusing for synthesized twelve novel benzamide derivatives and examined their insecticidal effectiveness against S. frugiperda larvae in their second & fourth larvae instars, with the aim of further improving the insecticidal activity based on combination principles. Several spectroscopic methods, including elemental analysis, NMR & infrared spectroscopy, were employed for confirming the structure of the newly designed products. It has been discovered that most compounds show good of promising efficacy. With an LC50 of 24.8 mg/L for larvae in the second instar & 56.2 mg/L for larvae in the fourth instar, compound 23 was the most active. Among all compounds 11, 22 and 20 exhibited excellent results. Furthermore, a number of biological and histopathological properties of the demonstration compounds of the produced goods under laboratory conditions were also examined. This work further demonstrates the anti-proliferation of S. frugiperda and offers fresh ideas for the manufacture of benzamide derivatives.
Collapse
Affiliation(s)
- Hany M Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mai M Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - M Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
| | - Antar A Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
- Chemistry Department, Faculty of Science, Al-Baha University, Al-Baha, 1988, Saudi Arabia
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agricultural Research Center, 12619, Giza, Egypt
| |
Collapse
|
3
|
Asiri BMK. Novel Aryl Thioamides Derivatives as Insect Growth Regulators Analogues against Spodoptera littoralis (Lepidoptera: Noctuidae): Design, Synthesis, Insecticidal Activity and Biochemical Impacts. Chem Biodivers 2024; 21:e202400776. [PMID: 38733168 DOI: 10.1002/cbdv.202400776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/09/2024] [Accepted: 05/10/2024] [Indexed: 05/13/2024]
Abstract
A significant reason for developing innovative insecticidal active agents is the exponential rise in resistance to traditional chemical pesticides. Exploring new classes of insecticidal compounds with distinct mechanisms of action is one way to address this difficulty. So that, novel aryl thioamides derivatives 3-15 has been synthesized viaone-pot, three-component reaction of aroyl chloride, ammonium thiocyanate, and aromatic amines in dry acetone. The newly synthesized compounds' structures were validated by various spectroscopic methods, including elemental analysis, 1H-NMR, 13C NMR, and infrared spectroscopy. Under laboratory circumstances, the synthesized compounds showed good and broad-spectrum insecticidal activities toward S. littorali. When compared to other synthetic target compounds, 2,4-dichloro-N-[(3-fluorophenyl)carbamothioyl]benzamide 11, 2,4-dichloro-N-[(3-fluorophenyl)carbamothioyl]benzenecarbothioamide 13 showed good insecticidal activity, with 46.33 mg/L and LC50 values of 49.25 mg/L for 2nd instar larvae. Furthermore, the compound 3 was the least toxic in controlling the second and fourth instar larvae of S. littoralis on tomato leaves. Additionally, several histopathological and biochemical features of the some synthesized compounds under laboratory circumstances were also examined.
Collapse
Affiliation(s)
- Badriah M K Asiri
- Department of Biological Sciences, College of Science, University of Jeddah, Jeddah, Saudi Arabia
| |
Collapse
|
4
|
Abd El-Lateef HM, Khalaf MM, Gouda M, Gad MA, Abdelhamid AA, Ismail AF, Amer AA, Drar AM. Synthesis and Insecticidal Evaluation of 3,5-Dicyanopyridines Against Cotton Aphids via Microwave-Assisted Multicomponent Reactions. Chem Biodivers 2024; 21:e202400218. [PMID: 38381590 DOI: 10.1002/cbdv.202400218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 02/21/2024] [Accepted: 02/21/2024] [Indexed: 02/23/2024]
Abstract
Certain 2-amino-6-alkoxy-4-arylpyridine-3,5-dicyanide 1a-e were prepared via a straightforward process using microwave technology rather than conventional methods. This involved reaction of arylidenemalononitrile thru propanedinitrile in the occurrence of sodium alkoxide under MW. While, their positional isomer 4-amino-6-alkoxy-2-arylpyridine-3,5-dicyanide 3a-j have been separated from the reaction of aryl aldehydes with 2-aminoprop-1-ene-1,1,3-tricarbonitrile 2 in the presence of sodium alkoxide using microwave technic. Furthermore, the insecticidal properties of all synthesized compounds were observed with respect to Cotton aphid nymphs and adults. Neonicotinoid pesticides are indicated as the most effective pesticides toward aphids and many other pests. Many insecticides are discovered as novelties. As a result, several pyridine compounds were chemical method synthesized to serve as equivalents of neonicotinoids, a broad class of insecticides. With LC50 value of 0.03 mg/L, components 3g exhibit the highest insecticidal bioactivity. This work discusses how to find new chemicals that could be used as insecticidal agents in the future.
Collapse
Affiliation(s)
- Hany M Abd El-Lateef
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mai M Khalaf
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Mohamed Gouda
- Department of Chemistry, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agriculture Research Center, Giza, 12619, Egypt
| | - Antar A Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
- Chemistry Department, Faculty of Science, Al-Baha University, Al-Baha, 1988, Saudi Arabia
| | - Abdelrahim Fathy Ismail
- The Scientific Journal of King Faisal University, King Faisal University, Al Ahsa, Saudi Arabia
- Department of Curriculum and Instruction, Faculty of Education, Assiut University, Assiut, Egypt
| | - Amer A Amer
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Ali M Drar
- Research Institute of Plant Protection, Agriculture Research Center, Giza, 12619, Egypt
| |
Collapse
|
5
|
Bakry MMS, Abdelhamid AA, Al-Hoshani N, El Hadi Mohamed RA, Gad MA. Green synthesis and bioefficacy screening of new insect growth regulators as eco-friendly insecticides against the cotton mealybug Phenacoccus solenopsis. Chem Biodivers 2024; 21:e202301390. [PMID: 38179826 DOI: 10.1002/cbdv.202301390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 12/27/2023] [Accepted: 01/03/2024] [Indexed: 01/06/2024]
Abstract
Overcoming or reducing the majority of difficulties caused by the use of common pesticides requires the use of developed, secure, unique and selective organic compounds. Due to their clear mechanism of action on pests and lower poisonousness towards vertebrates than conventional insecticides, juvenile hormone analogues as an example of insect growth regulators appear promising. Thus, a unique set of pure insect growth regulators has been synthesized. The structure of these synthesized compounds, which were related to the most well-known insect growth regulator insecticides, was confirmed by elemental and contemporary spectroscopic investigations (IR, UV, 1 H-NMR, 13 C NMR, and Dept 135 spectrum). Under laboratory conditions, the effectiveness of a chemically newly synthesized products was tested against the cotton mealybug, Phenacoccus solenopsis, and compared with Fenoxycarb as a reference insecticide. Compound 7 was discovered to be more effective than the other synthetic compounds, with LC50 values of 0.907 mg/L for adult female P. solenopsis and 0.377 mg/L for third instar nymphs. Furthermore, this results concluded that the adult female's stage of P. solenopsis was less sensitive to the checked treatments as matched to the third instar nymphs.
Collapse
Affiliation(s)
- Moustafa M S Bakry
- Research Institute of Plant Protection, Agricultural Research Center, 12619, Giza, Egypt
| | - Antar A Abdelhamid
- Department of Chemistry, Faculty of Science, Sohag University, Sohag, 82524, Egypt
- Department of Chemistry, Faculty of Science, Al-Baha University, 1988, Al-Baha, Saudi Arabia
| | - Nawal Al-Hoshani
- Department of Biology, College of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, 11617, Saudi Arabia
| | - Rania Ali El Hadi Mohamed
- Department of Biology, College of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, 11617, Saudi Arabia
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agricultural Research Center, 12619, Giza, Egypt
| |
Collapse
|
6
|
Abd El-Lateef HM, Elkanzi NAA, Adel Thabet M, Gad MA, Omran OA, Ali AM. Design, Characterization and SAR Studies of Novel Bioactive Benzylideneacetophenone Derivatives as Insecticidal Agents against Spodoptera frugiperda (Lepidoptera: Noctuidae). Chem Biodivers 2024; 21:e202301284. [PMID: 38036947 DOI: 10.1002/cbdv.202301284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/29/2023] [Accepted: 11/29/2023] [Indexed: 12/02/2023]
Abstract
Unintentional environmental effects brought on by insecticides encourage the creation of safer substitutes. A very polyphagous migrating lepidopteran pest species in Africa called S. Frugiperda causes terrible damage. In the current paper, treatment of 4-acetylphenyl 4-methylbenzenesulfonate with different aromatic aldehydes in the presence of NaOH afforded benzylideneacetophenones. The structure of the newly prepared compounds were proved by different spectroscopic techniques such as IR, 1 H-NMR, 13 C NMR, and elemental analysis. We looked at the association between contact with S. frugiperda and stricture reaction to examine their harmful effect. Additionally, S. frugiperda was used for testing the newly created compounds for their ability to kill insects. The majority of substances have been proven to be effective and promising. It has been found that 4-[3-(4-Methylphenyl)prop-2-enoyl]phenyl-4-methyl benzenesulfonate (4) was the most active with an LC50 =3.46 mg/L of 2nd instar larvae and LC50 =9.45 mg/L of 4th instar larvae. Moreover, some of biological and histopathological aspects of the synthesized products were investigated under laboratory conditions.
Collapse
Affiliation(s)
- Hany M Abd El-Lateef
- Chemistry Department, College of Science, King Faisal University, Al-Ahsa, 31982, Saudi Arabia
- Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Nadia A A Elkanzi
- Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka, Saudi Arabia
- Chemistry Department, Faculty of Science, Aswan University, P.O. Box81528, Aswan, Egypt
| | - Marwa Adel Thabet
- Department Zoology and Entomology, Faculty of Science, Assiut University, Assiut, 71516, Egypt
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agriculture Research Center, 12619, Giza, Egypt
| | - Omran A Omran
- Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Ali M Ali
- Chemistry Department, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| |
Collapse
|
7
|
Bakhite EA, Abuelhassan S, Gad MA, Abdel-Rahman AE, Ibrahim OF, Marae IS, Mohamed SK, Mague JT, Nafady A. Pyridine Derivatives as Insecticides─Part 4: Synthesis, Crystal Structure, and Insecticidal Activity of Some New Thienylpyridines, Thienylthieno[2,3- b]pyridines, and Related Heterocyclic Derivatives. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023; 71:17627-17634. [PMID: 37941360 DOI: 10.1021/acs.jafc.3c01202] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
The reaction of ethyl 5-cyano-2-methyl-4-(thiophen-2-yl)-6-thioxo-1,6-dihydropyridine-3-carboxylate (1) with 2-chloroacetamide or its N-aryl derivatives gave ethyl 6-((2-amino-2-oxoethyl)thio)-5-cyano-2-methyl-4-(thiophen-2-yl) nicotinate (2a) or its N-aryl derivatives 2b-f, respectively. Cyclization of 2a-f into their isomers 3a-f was carried out by heating in absolute ethanol in the presence of a catalytic amount of sodium ethoxide. The o-aminoamide 3a was reacted with some aryl aldehydes in refluxing ethanol containing a few drops of conc. HCl to afford the corresponding tetrahydropyrimidinones 4a-d. The cyclocondensation reaction of 3a with some cycloalkanones such as cyclopentanone and cyclohexanone gave the corresponding spiro compounds 5a,b. The crystal structures of compounds 2a and 2d were determined by single-crystal X-ray diffraction techniques. All new compounds were evaluated for their insecticidal activity toward nymphs and adults of Aphis gossypi.
Collapse
Affiliation(s)
- Etify A Bakhite
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Suzan Abuelhassan
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Mohamed A Gad
- Research Institute of Plant Protection, Agriculture Research Center, Giza 12112, Egypt
| | - Abdu E Abdel-Rahman
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Omaima F Ibrahim
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Islam S Marae
- Department of Chemistry, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Shaaban K Mohamed
- Chemistry and Environmental Division, Manchester Metropolitan University, Manchester M1 5GD, England
- Chemistry Department, Faculty of Science, Minia University, 61519 El-Minia, Egypt
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, Louisiana 70118, United States
| | - Ayman Nafady
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| |
Collapse
|
8
|
Abd El-Lateef HM, Khalaf MM, Gouda M, Kandeel M, Amer AA, Abdelhamid AA, Drar AM, Gad MA. Functionalized Pyridines: Synthesis and Toxicity Evaluation of Potential Insecticidal Agents against Aphis craccivora. ACS OMEGA 2023; 8:29685-29692. [PMID: 37599961 PMCID: PMC10433465 DOI: 10.1021/acsomega.3c03831] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 07/21/2023] [Indexed: 08/22/2023]
Abstract
Using ultrasound technology instead of traditional methods, some pyridine derivatives were prepared by a simple procedure via a four-component reaction of different aromatic aldehydes, acetyl aryl, sodium alkoxide, and malononitrile, and additionally, all prepared compounds were monitored for insecticidal activities toward nymphs and adults of cowpea aphid. Though a lot of insecticides are discovered as a novelty on the other hand, neonicotinoid compounds are reflected as the most affected insecticides against aphids and many other pests. Thus, some of the pyridine derivatives were chemically prepared as analogues to a large group of insecticides called neonicotinoids. Under laboratory conditions, the toxicity of these components was measured toward adults and nymphs of Aphis craccivora. With respect to the LC50 values, components 1f, 1d, and 1c have the utmost insecticidal bioactivity, with values of 0.080, 0.098, and 0.127 mg/L. This work covers the way to discover novel compounds for the prospective use as insecticidal representatives.
Collapse
Affiliation(s)
- Hany M. Abd El-Lateef
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Mai M. Khalaf
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Mohamed Gouda
- Department
of Chemistry, College of Science, King Faisal
University, Al-Ahsa 31982, Saudi Arabia
| | - Mahmoud Kandeel
- Department
of Biomedical Sciences, College of Veterinary Medicine, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department
of Pharmacology, Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh 33516, Egypt
| | - Amer A. Amer
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
| | - Antar A. Abdelhamid
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 82524, Egypt
- Chemistry
Department, Faculty of Science, Albaha University, Albaha 1988, Saudi Arabia
| | - Ali M. Drar
- Research
Institute of Plant Protection, Agriculture
Research Center, Giza 12112, Egypt
| | - Mohamed A. Gad
- Research
Institute of Plant Protection, Agriculture
Research Center, Giza 12112, Egypt
| |
Collapse
|
9
|
Abdelhamid A, Aref SA, Ahmed NA, Elsaghier AMM, Abd El Latif FM, Al-Ghamdi SN, Gad MA. Design, Synthesis, and Toxicological Activities of Novel Insect Growth Regulators as Insecticidal Agents against Spodoptera littoralis (Boisd.). ACS OMEGA 2023; 8:709-717. [PMID: 36643456 PMCID: PMC9835546 DOI: 10.1021/acsomega.2c05977] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
As a result of some major problems that come from using insecticides, the use of safe alternatives to these pesticides has become very necessary. Thus, a novel series of predicted toxicologically active urea, thiourea, thiosemicarbazide, oxadiazole, pyrazole, and triazine derivatives have been synthesized in a pure form to be lufenuron analogues as insect growth regulators which were screened and examined against Spodoptera littoralis (Boisd). The structure of synthesized compounds was established by means of spectroscopic and elemental analyses. Compounds b5, b2, b3, and a4 showed high insecticidal toxicity, and their LC50 values for the second larvae instar were found to be 26.63, 46.35, and 60.84 ppm, respectively, whereas the LC50 value for lufenuron as a reference insecticide was 17.01 ppm.
Collapse
Affiliation(s)
- Antar
A. Abdelhamid
- Department
of Chemistry, Faculty of Science, Sohag
University, Sohag 8252, Egypt
- Chemistry
Department, Faculty of Science, Albaha University, Albaha 1988, Saudi Arabia
| | - Safwat A. Aref
- Research
Institute of Plant Protection, Agricultural
Research Center, Giza 12112, Egypt
| | - Nabila A. Ahmed
- Research
Institute of Plant Protection, Agricultural
Research Center, Giza 12112, Egypt
| | | | - Fawy M. Abd El Latif
- Chemistry
Department, Faculty of Science, Albaha University, Albaha 1988, Saudi Arabia
- Chemistry
Department, Faculty of Science, Aswan University, Aswan 81528, Egypt
| | - Sameera N. Al-Ghamdi
- Chemistry
Department, Faculty of Science, Albaha University, Albaha 1988, Saudi Arabia
| | - Mohamed A. Gad
- Research
Institute of Plant Protection, Agricultural
Research Center, Giza 12112, Egypt
| |
Collapse
|
10
|
Ali AM, Salah H, Gad MA, M. A. M Y, Elkanzi NAA. Design, Synthesis, and SAR Studies of Some Novel Chalcone Derivatives for Potential Insecticidal Bioefficacy Screening on Spodoptera frugiperda (Lepidoptera: Noctuidae). ACS OMEGA 2022; 7:40091-40097. [PMID: 36385879 PMCID: PMC9648091 DOI: 10.1021/acsomega.2c04814] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 10/17/2022] [Indexed: 06/16/2023]
Abstract
Spodoptera frugiperda is a species of the order Lepidoptera. It is one of the species of fall armyworm moths distinguished by its larval life stage, is found in different regions of Africa, and can cause incredible damage. This is the first report produced by the preparation of an indexed combinatorial library of novel chalcone derivatives 3a-k via treatment of 4-formylphenyl4-methylbenzenesulfonate (1) with some acetyl compounds 2a-k in the presence of NaOH. The structures of the synthesized compounds were proven by different spectroscopic techniques such as infrared, 1H NMR, 13C NMR, and elemental analyses. In this work, we studied their toxicity effect against S. frugiperda, followed by a structure-reaction relationship. Moreover, newly prepared chalcone derivatives were tested as insecticides using S. frugiperda. It has been found that most compounds have good to excellent potential effectiveness. Among all of the compounds, 3b, 3g, and 3j exhibited excellent effectiveness. Furthermore, compound 3c showed the most activity, with LC50 = 9.453 ppm of the second instar larva and LC50 = 66.930 of the fourth instar larva .
Collapse
Affiliation(s)
- Ali M. Ali
- Chemistry
Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
| | - Hanan Salah
- Chemistry
Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
| | - Mohamed A. Gad
- Agriculture
Research Center, Research Institute of Plant
Protection, 12112 Giza, Egypt
| | - Youssef M. A. M
- Agriculture
Research Center, Research Institute of Plant
Protection, 12112 Giza, Egypt
| | - Nadia A. A. Elkanzi
- Chemistry
Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 72388, Saudi Arabia
- Chemistry
Department, Faculty of Science, Aswan University, P.O. Box 81528, Aswan 81528, Egypt
| |
Collapse
|
11
|
Alanazi M, Arafa WA, Althobaiti IO, Altaleb HA, Bakr RB, Elkanzi NAA. Green Design, Synthesis, and Molecular Docking Study of Novel Quinoxaline Derivatives with Insecticidal Potential against Aphis craccivora. ACS OMEGA 2022; 7:27674-27689. [PMID: 35967065 PMCID: PMC9366785 DOI: 10.1021/acsomega.2c03332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
An efficient and environmentally friendly method was established for designing novel 3-amino-1,4-dihydroquinoxaline-2-carbonitrile (1) via the reaction of bromomalononitrile and benzene-1,2-diamine under microwave irradiation in an excellent yield (93%). This targeted amino derivative was utilized for the construction of a series of Schiff bases (8-13). A new series of thiazolidinone derivatives (15-20) were synthesized in high yields (89-96%) via treatment of thioglycolic acid with Schiff bases (8-13) under microwave irradiation in high yields (89-96%). Moreover, new pyrimidine derivatives (26-30 and 35-38) were prepared by treatment of compound 1 with arylidenes (21-25) and/or alkylidenemalononitriles (31-34) using piperidine as a basic catalyst under microwave conditions. Based on elemental analyses and spectral data, the structures of the new assembled compounds were determined. The newly synthesized quinoxaline derivatives were screened and studied as an insecticidal agent against Aphis craccivora. The obtained results indicate that compound 16 is the most toxicological agent against nymphs of cowpea aphids (Aphis craccivora) compared to the other synthesized pyrimidine and thiazolidinone derivatives. The molecular docking study of the new quinoxaline derivatives registered that compound 16 had the highest binding score (-10.54 kcal/mol) and the thiazolidinone moiety formed hydrogen bonds with Trp143.
Collapse
Affiliation(s)
- Mariam
Azzam Alanazi
- Chemistry
Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 2014, Saudi Arabia
| | - Wael A.A. Arafa
- Chemistry
Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 2014, Saudi Arabia
- Chemistry
Department, Faculty of Science, Fayoum University, P.O. Box 63514, Fayoum 63514, Egypt
| | - Ibrahim O. Althobaiti
- Department
of Chemistry, College of Science and Arts, Jouf University, Sakaka 42421, Saudi Arabia
| | - Hamud A. Altaleb
- Department
of Chemistry, Faculty of Science, Islamic
University of Madinah, Madinah 42351, Saudi Arabia
| | - Rania B. Bakr
- Department
of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62514, Egypt
| | - Nadia A. A. Elkanzi
- Chemistry
Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 2014, Saudi Arabia
- Chemistry
Department, Faculty of Science, Aswan University, P.O. Box 81528, Aswan 81528, Egypt
| |
Collapse
|