85304-03-6Relevant academic research and scientific papers
Synthesis, evaluation of antioxidant activity and crystal structure of 2,4-dimethylbenzoylhydrazones
Taha, Muhammad,Ismail, Nor Hadiani,Jamil, Waqas,Yousuf, Sammer,Jaafar, Faridahanim Mohd,Ali, Muhammad Imran,Kashif, Syed Muhammad,Hussain, Ejaz
, p. 10912 - 10929 (2013)
2,4-Dimethylbenzoylhydrazones 1-30 were synthesized by condensation reactions of 2,4-dimethylbenzoylhydrazide with various aromatic aldehydes and characterized. The assigned structures of compounds 10, 15 and 22 were further supported by single-crystal X-
Synthesis and bioactivity of sulfide derivatives containing 1,3,4-oxadiazole and pyridine
Yu, Gang,Chen, Shunhong,He, Feng,Luo, Dexia,Zhang, Yu,Wu, Jian
, p. 1075 - 1085 (2019/09/10)
A series of novel sulfide derivatives containing 1,3,4-oxadiazole and pyridine were synthesized, characterized, and tested for their antibacterial activity against tobacco bacterial wilt and rice bacterial blight and for insecticidal activity toward diamondback moth. The results showed that some compounds had good insecticidal and bactericidal activity, e.g., the activities of compounds 6e and 6g–6j toward tobacco bacterial wilt were much better than those of commercial thiodiazole-copper, and some of the synthesized compounds possessed good insecticidal activity against Plutella xylostella. Compounds 6d, 6h, 6j, 6l, 6p, 6r, and 6p displayed over 93% activity at 500 mg L? 1.
Design, synthesis, insecticidal activity and 3D-QSR study for novel trifluoromethyl pyridine derivatives containing an 1,3,4-oxadiazole moiety
Xu,Wang,Luo,Yu,Guo,Fu,Zhao,Wu
, p. 6306 - 6314 (2018/02/19)
A series of trifluoromethyl pyridine derivatives containing 1,3,4-oxadiazole moiety was designed, synthesized and bio-assayed for their insecticidal activity. The result of bio-assays indicated the synthesized compounds exhibited good insecticidal activity against Mythimna separata and Plutella xylostella, most of the title compounds show 100% insecticidal activity at 500 mg L-1 and >80% activity at 250 mg L-1 against the two pests. Compounds E18 and E27 showed LC50 values of 38.5 and 30.8 mg L-1 against Mythimna separata, respectively, which were close to that of avermectin (29.6 mg L-1); compounds E5, E6, E9, E10, E15, E25, E26, and E27 showed 100% activity at 250 mg L-1, which were better than chlorpyrifos (87%). CoMFA and CoMSIA models with good predictability were proposed, which revealed the electron-withdrawing groups with an appropriate bulk at 2- and 4-positions of benzene ring could enhance insecticidal activity.
Tirfluoromethylpyridine oxadiazoles (ether)derivative and application thereof
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, (2018/07/30)
The invention discloses an application of a tirfluoromethylpyridine oxadiazole (ether)derivative in a pesticide. A structure is shown as a general formula I, a compound shown in the general formula Ihas good insecticidal activity, and can be used for controlling insects such as diamondback moth and armyworm. The compound has excellent control effect for insects such as diamondback moth and armyworm, and also has control effect for the insects having resistance to the traditional pesticides, in addition, introduction of fluorine-containing groups such as tirfluoromethylpyridine and oxadiazoleas well as heterocyclic ring can enhance a rate for forming hydrogen bond effect between a compound and a target, and the activity of the compound is increased.
COMPOSITIONS AND METHODS FOR TREATING FRIEDREICH'S ATAXIA
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, (2016/04/19)
The invention provides compositions and methods useful for the treatment of Friedreich's ataxia. In some embodiments, the invention provides compositions and methods useful for inhibiting the ubiquitination of frataxin.
Acid Chloride Synthesis by the Palladium-Catalyzed Chlorocarbonylation of Aryl Bromides
Quesnel, Jeffrey S.,Kayser, Laure V.,Fabrikant, Alexander,Arndtsen, Bruce A.
, p. 9550 - 9555 (2015/06/30)
We report a palladium-catalyzed method to synthesize acid chlorides by the chlorocarbonylation of aryl bromides. Mechanistic studies suggest the combination of sterically encumbered PtBu3 and CO coordination to palladium can rapidly equilibrate the oxidative addition/reductive elimination of carbon-halogen bonds. This provides a useful method to assemble highly reactive acid chlorides from stable and available reagents, and can be coupled with subsequent nucleophilic reactions to generate new classes of carbonylated products. The Good, the Bad and the Bulky! By employing a sterically encumbered phosphine ligand, tri-tert-butyl phosphine, under palladium catalysis inert aryl bromides are chlorocarbonylated to create reactive acid chlorides by reversible carbon-halogen bond reductive elimination. This general platform allows for an expanded scope of the Heck carbonylation reaction to include previously incompatible nucleophiles.
Synthesis of new 2,5-di-substituted 1,3,4-oxadiazoles bearing 2,6-di-tert-butylphenol moieties and evaluation of their antioxidant activity
Shakir, Raied M.,Ariffin, Azhar,Abdulla, Mahmood Ameen
, p. 3436 - 3439 (2014/04/17)
Eleven new 2,6-di-tert-butyl-4-(5-Aryl-1,3,4-oxadiazol-2-yl)phenols 5a-k were synthesized by reacting aryl hydrazides with 3,5-di-tert butyl 4-hydroxybenzoic acid in the presence of phosphorus oxychloride. The resulting compounds were characterized based on their IR, 1H-NMR, 13C-NMR, and HRMS data. 2,2-Diphenyl-1-picrylhydrazide (DPPH) and ferric reducing antioxidant power (FRAP) assays were used to test the antioxidant properties of the compounds. Compounds 5f and 5j exhibited significant free-radical scavenging ability in both assays.
Compounds comprising linked heteroaryl moieties and their use as novel umami flavor modifiers, tastants and taste enhancers for comestible compositions
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Page/Page column 40, (2010/11/24)
The inventions disclosed herein relate to the discovery of the use of compounds having the formula shown below and certain subgenera or species thereof, as flavor or taste modifiers, particularly, savory (“umami”) taste modifiers, savory flavoring agents
A New Class of Nonhormonal Pregnancy-Terminating Agents. Synthesis and Contragestational Activity of 3,5-Diaryl-s-triazoles
Omodei-Sale, Amedeo,Consonni, Pietro,Galliani, Giulio
, p. 1187 - 1192 (2007/10/02)
A series of 3,5-diaryl-s-triazoles were synthesized and evaluated as postimplantation contragestational agents.The introduction of various substituents (e.g., an o-alkyl chain on one phenyl and a m-alkoxy group on the other) was found to increase the potency.Several compounds with very high pregnancy-terminating activity in both hamsters and rats were obtained.One of these, 3-(2-ethylphenyl)-5-(3-methoxyphenyl)-s-triazole, DL 111 (36), was selected for detailed evaluation in various animal species.A synthetic scheme for the preparation of these compounds and preliminary structure-activity relationships are presented.
