A5034330568- Synthesis and biological activity
- Synthesis and Reactions of Organic Compounds
- Synthesis and Biological Evaluation
- Synthesis and Characterization of Heterocyclic Compounds
- Oxidative Organic Chemistry Reactions
- Synthesis of heterocyclic compounds
- Synthesis of Organic Compounds
- Fluorine in Organic Chemistry
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Agricultural pest management studies
- Multicomponent Synthesis of Heterocycles
- Agricultural Economics and Practices
- Synthesis and Reactivity of Heterocycles
- Agricultural Science and Fertilization
- Agriculture and Farm Safety
- Genetic and Environmental Crop Studies
- Wheat and Barley Genetics and Pathology
- Ergonomics and Musculoskeletal Disorders
- Genetics and Plant Breeding
- Agricultural Engineering and Mechanization
- Organic Chemistry Cycloaddition Reactions
- Chemical Synthesis and Reactions
- Plant Disease Resistance and Genetics
- Sulfur-Based Synthesis Techniques
- Agronomic Practices and Intercropping Systems
Vardhman Mahavir Medical College & Safdarjung Hospital
2025
Central Institute of Agricultural Engineering
2024
Lagos State University
2024
Sultan Idris Education University
2023-2024
Dr. Yashwant Singh Parmar University of Horticulture and Forestry
2023
Rayat Bahra University
2023
Uttar Pradesh Pandit Deen Dayal Upadhyaya Pashu Chikitsa Vigyan Vishwavidyalaya Evam Go-Anusandhan Sansthan
2023
Infrastructure University Kuala Lumpur
2023
Asia e University
2023
UCSI University
2023
The biological and medicinal properties of 5-aminopyrazoles have prompted enormous research aimed at developing synthetic routes to these heterocyles. This review focuses on the associated with this system. Various methods developed up 2010 for compounds are described, particularly those that involve reactions β-ketonitriles, malononitrile, alkylidenemalononitriles their derivatives hydrazines, as well some novel miscellaneous methods.
Hypocomplementemic urticarial vasculitis syndrome (HUVS) is a rare autoimmune disorder characterized by recurrent lesions and acquired hypocomplementemia with systemic manifestations. Systemic involvement can either be present at the onset of disease or develop later. Here, we case 22-year-old female, who initially presented generalized rash was eventually diagnosed HUVS. She responded well to dapsone. This article emphasizes importance comprehensive review manifestations accompanying urticaria.
The reaction between aryl or heteroarylhydrazines with fluorinated β-diketones (CF 3 COCH 2 COR) yields a variety of 3-, 5-, and 3,5-trifluoromethylpyrazoles 5-trifluoromethyl-5-hydroxy-Δ -pyrazolines. Twenty-one such compounds have been isolated identified by 13 C 19 F NMR. Together the results from literature they provide comprehensive overview reaction. Semi-empirical calculations at PM3 level used to rationalize these results. outcome that emerges seems be dehydration pair...
The combination reagent (dichloroiodo)benzene and lead(II) thiocyanate in dichloromethane effects oxidation of various enol silyl ethers, ketene acetals, β-dicarbonyl compounds, thereby providing an efficient convenient method for α-thiocyanation carbonyl compounds.
Abstract 1, 3, 5-Trisubstituted pyrazolines (1a–i) undergo facile oxidation to the corresponding pyrazoles (2a–i) in presence of iodobenzene diacetate.
Summary The field experiments were conducted at the Indian Agricultural Research Institute, New Delhi in summer-rainy seasons of 1980 and 1981 to study effect different sorghum-legume intercropping systems weed control methods on growth, yield nutrient uptake by crops weeds. legumes increased N, P K sorghum compared with sole sorghum. However, maximum increase was obtained when it grown association fodder cow pea. All intercrops smothered weeds but suppression total nutrients (N, K) also...
The reaction of trifluoromethyl-β-diketones with hydrazines and hydroxylamine finds interesting application in the synthesis trifluoromethylpyrazole isoxazole derivatives.The review covers literature reactions mentioned up to 2007.Mechanistic aspects leading formation these heterocycles their NMR spectral characteristics are also described.
Abstract Helminthosporium leaf blight (HLB) is the most important disease constraint to wheat (Triticum aestivum L.) cultivation in eastern Gangetic Plains of South Asia. A Monitoring Nursery (HMN) including potential adapted and exotic sources HLB resistance was developed Bangladesh, India Nepal assess stability genetic across locations. The 8th, 9th 10th HMN assessed agronomic traits 17 genotypes 20 environments 1999‐2000, 2000‐2001 2001‐2002 cropping seasons, respectively. area under...
Oxidation of anthranilamides, salicylamides and some β-substituted amides with iodobenzene diacetate in methanolic potassium hydroxide led to a new convenient synthesis 2-benzimidazolones, 2-benzoxazolones related compounds, respectively. The reaction probably occurs via initial Hofmann-type rearrangement followed by intramolecular cyclization intermediate isocyanate.
Abstract Oxidation of 2-aryl-1,2,3,4-tetrahydro-4-quinolones (1a-e) using iodobenzene diacetate in methanolic potassium hydroxide leads to dehydrogenation 1 thereby providing an easy access 2-aryl-4-quinolones (2a-e).
The reaction of 2-hydrazinonaphtho[2,1-d]thiazole with 1,3-diketones affords 2-pyrazolylnaphtho[2,1-d]thiazoles rather than naphtho[2',1'-4,5]thiazolo[2,3-c][1,2,4]triazepines as previously reported. structure assignment is based on nmr ( 1 H and 13 C) mass spectral data an unambigious synthesis
Abstract magnified image We report the results obtained when five aromatic or heteroaromatic hydrazines react with six β‐diketones bearing trifluoromethyl and aryl substituents. Forty‐two compounds have been isolated corresponding to two isomeric pyrazoles intermediate 5‐CF 3 , 5‐OH pyrazolines. The provided useful information for establishing mechanism of synthesis pyrazoles.
Multinuclear magnetic resonance spectroscopy together with GIAO-DFT calculations allowed establishment of the structure products obtained by condensation 3(5)-amino-4-phenyl-1H-pyrazole and beta-dicarbonyl compounds bearing a trifluoromethyl group. They are 3-phenyl-5-(R)-7-trifluoromethylpyrazolo[1,5-a]pyrimidines.
Abstract Fused 1,2,3-triazoloheterocycles have been prepared by iodobenzene diacetate mediated oxidation of hydrazones nitrogen heterocyclic ketones and aldehydes.