Category: 1123-49-5

Reference of 1123-49-5, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.1123-49-5, Name is 3,5-Dimethyl-4-nitroisoxazole, molecular formula is C5H6N2O3. In a Article，once mentioned of 1123-49-5

An efficient one-pot asymmetric synthesis of chiral compounds containing both isoxazole and pyrazole moieties has been developed. The bifunctional thiourea catalyzed asymmetric 1,6-addition of pyrazol-5-ones to 3-methyl-4-nitro-5-alkenylisoxazoles provided the corresponding acetylated chiral heterocycles after in situ treatment with AcCl/Et3N. The corresponding products were generated in good yields (72-90%) with high enantioselectivities (83-94% ee).

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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Related Products of 1123-49-5, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.1123-49-5, Name is 3,5-Dimethyl-4-nitroisoxazole, molecular formula is C5H6N2O3. In a Article，once mentioned of 1123-49-5

One-pot synthesis of highly functionalized tetrahydrothiophene (thiolane) derivatives conjugated with biologically useful isooxazole are reported via the Knoevenagel condensation followed by domino sulfa-1,6-Michael/intramolecular vinylogous Henry reactions of aldehydes, 1,4-dithiane-2,5-diol and 3,5-dimethyl-4-nitroisoxazole. From the base and solvent screening, it was found that piperidine (30 mol%) and ethanol are the most suitable conditions giving the desired products with >95% yields in 2-2.5 h overall reaction time.

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Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Computed Properties of C5H6N2O3, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 1123-49-5, Name is 3,5-Dimethyl-4-nitroisoxazole, molecular formula is C5H6N2O3

2,3- 2,5- and 4,5-Dihydroisoxazoles have been selectively synthesized by reaction of isoxazoles with organo-lithium, -magnesium, and -aluminium reagents.Moreover, the reaction of benzoisoxazolium salts with highly basic organolithium compounds leads to phenylaziridines resulting from an unusual ring cleavage-closure process.A mechanism which accounts for all the experimental results is also given.

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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

In homogeneous catalysis, the catalyst is in the same phase as the reactant. The number of collisions between reactants and catalyst is at a maximum.In a patent, 1123-49-5, name is 3,5-Dimethyl-4-nitroisoxazole, introducing its new discovery. Recommanded Product: 3,5-Dimethyl-4-nitroisoxazole

A three-component one-pot procedure (3-MCR) was developed to assemble the spiroisoxazoline nucleus from commercially available materials. This new methodology affords the title compounds in high yields and without the use of chromatography.

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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, category: Isoxazoles, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 1123-49-5, Name is 3,5-Dimethyl-4-nitroisoxazole, molecular formula is C5H6N2O3

The oximation of acetyl(hydroxyimino)aceton (1) with hydroxylamine affords a mixture of oxime derivatives.The products obtained by the action of an equimolar amount of hydroxylamine on (1) are the two 3,5-dimethyl-5-hydroxy-4-hydroxyimino-2-isoxazoline isomers (3a and b).The main products obtained by the action of an excess of hydroxylamine on (1) are two pentane-2,3,4-trione trioxime isomers (4a and b) and a little amount of 4-acetyl-3-methylfuroxan oxime (5).N.m.r. and chemical data of all these derivatives are discussed in order to determine both structures and configuration.X-Ray analysis of (3a), (4a), and (5) are also reported.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. category: Isoxazoles, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 1123-49-5, in my other articles.

Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. COA of Formula: C5H6N2O3, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 1123-49-5

A one-pot, base-catalyzed, tandem grinding process involving carrying out aldol condensation and Michael addition in sequence to produce 3,4,5-trisubstituted isoxazoles from 3,5-dimethyl-4-nitroisoxazole, aromatic aldehydes and activated methylene compounds has been developed. In the presence of 10 mol% of pyrrolidine, aldol condensations of 3,5-dimethyl-4-nitroisoxazole with various aromatic aldehydes were performed with 3-10 minutes of grinding to provide 5-styryl-3-methyl-4-nitroisoxazoles in good to quantitative yields without further purification. Then, Michael additions between 5-styryl-3-methyl-4-nitroisoxazoles and activated methylene compounds (including ethyl 2-nitroacetate and alkyl 2-cyanoacetates) were carried out in the presence of 10 mol% of Et3N in the same mortar with 3-5 minutes of continuous grinding to produce 3,4,5-trisubstituted isoxazoles in good to excellent yields.

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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. Quality Control of 3,5-Dimethyl-4-nitroisoxazole, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 1123-49-5

Novel series of dihydro benzofuro[3,2-e]isoxazolo[4,5-b]azepin-5(5aH)-ones 6 have been synthesized from 3,5-dimethyl-4-nitroisoxazole 1. Compound 1 on treatment with salicyl aldehydes afforded the corresponding nitrostyrylisoxazoles 3, which upon reaction with ethyl bromo acetate followed by cyclization with triethylamine furnished ethyl 2,3-dihydro-3-[(3-methyl-4- nitro-5-isoxazolyl)methyl]benzofuran-2-carboxylates 5. Reductive cyclization of compounds 5 was effected with SnCl2-MeOH to give the title compounds 6. Compounds 4-6 were characterized by IR, 1H NMR, 13C NMR and Mass spectral data. The title compounds 6a-g were evaluated for their antimicrobial, anti-inflammatory, LOX-5 inhibitory, and analgesic activity. Compounds 6b and 6c exhibited significant antimicrobial activity, potent anti-inflammatory and analgesic activities as that of standard drugs.

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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

1123-49-5, Name is 3,5-Dimethyl-4-nitroisoxazole, belongs to isoxazole compound, is a common compound. Application In Synthesis of 3,5-Dimethyl-4-nitroisoxazoleIn an article, once mentioned the new application about 1123-49-5.

A simple and efficient method has been developed for the synthesis of chromene substituted isoxazolo[4,5-b]pyridine-N-oxides 3 from 3,5-dimethyl-4-nitroisoxazole 1 and substituted 3-acetyl-2-oxo-2H-3-chromenes 2 in presence of piperidine. Pyridin-N-oxides 3 are deoxygenated to corresponding pyridines 4 by treatment with PCl3.

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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. Recommanded Product: 3,5-Dimethyl-4-nitroisoxazole. Introducing a new discovery about 1123-49-5, Name is 3,5-Dimethyl-4-nitroisoxazole

Herein, we report our investigation into the reactivity of 5-enamino-4-nitroisoxazoles. This study revealed that the title compounds, in spite of conjugation to the 4-nitroisoxazole, displayed similar reactivity to enamines, reacting with electrophiles to form new C-C, C-N, and C-Cl bonds.

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Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. HPLC of Formula: C5H6N2O3. Introducing a new discovery about 1123-49-5, Name is 3,5-Dimethyl-4-nitroisoxazole

The reaction between 3-methyl-4-nitro-5-styrylisoxazoles and ethyl isocyanoacetate proceeded under phase transfer catalysis to give enantioenriched monoadducts in high enantiomeric excess (up to 99% ee). The resulting adducts were subsequently cyclised to give 2,3-dihydropyrroles and substituted pyrrolidines in identical high ees and as a single diastereoisomer.

Note that a catalyst decreases the activation energy for both the forward and the reverse reactions and hence accelerates both the forward and the reverse reactions.HPLC of Formula: C5H6N2O3, you can also check out more blogs about1123-49-5

Reference：
Isoxazole – Wikipedia,
Isoxazole | C3H3NO – PubChem