Tag: M.W=300-400

Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, 66357-35-5, Name is Ranitidine, SMILES is O=[N+]([O-])/C=C(NCCSCC1=CC=C(O1)CN(C)C)NC, belongs to benzofurans compound. In a document, author is Ezzatzadeh, Elham, introduce the new discover, Formula: C13H22N4O3S.

A novel one-pot three-component synthesis of benzofuran derivatives via Strecker reaction: Study of antioxidant activity

A three-component Strecker-type reactions was applied for the synthesis of benzofuran derivatives through the reaction of 1-(6-hydroxy-2-isopropenyl-1-benzofuran-yl)-1-ethanone (euparin), primary amines and trimethylsilyl cyanide (TMSCN) in the presence of catalytic amount of ZnO-nanorods (ZnO-NR) and piperidine in acetonitrile at room temperature. The method has proved to be synthetically simple, and effective with high atom economy and yield. The catalyst also revealed significant reusability. Moreover, the antioxidant activity and free radical scavenging capacity of the newly synthesized such as 4a, 4c, 6a and 6c was screened using free radical scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing antioxidant power (FRAP) assays and compared with hydroxytoluene (BHT) and tert-butylhydroquinone (TBHQ). These compounds exhibit good DPPH radical scavenging and ferric reducing antioxidant power (FRAP) assays.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 66357-35-5 is helpful to your research. Formula: C13H22N4O3S.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

In an article, author is Mekky, Ahmed E. M., once mentioned the application of 66357-35-5, Name is Ranitidine, molecular formula is C13H22N4O3S, molecular weight is 314.4038, MDL number is MFCD00081180, category is benzofurans. Now introduce a scientific discovery about this category, Safety of Ranitidine.

Novel bis(pyrazole-benzofuran) hybrids possessing piperazine linker: Synthesis of potent bacterial biofilm and MurB inhibitors

Novel 1,4-bis[(2-(3-(dimethylamino)-1-oxoprop-2-en-1-yl)benzofuran-5-yl)methyl]piperazine was prepared and used as a key synthon for the this study. Therefore, 1,3-dipolar cycloaddition of this synthon with the appropriate hydrazonyl chlorides afforded a new series of bis(1,3,4-trisubstituted pyrazoles), linked via piperazine moiety. Furthermore, it reacted with hydrazine hydrate and phenyl hydrazine individually to afford the corresponding 1,4-bis[(2-(1H-pyrazolyl)benzofuran-5-yl)methyl]piperazines. Different bacterial strains and cell lines were selected to study the in-vitro antibacterial and cytotoxic activities for the new derivatives. 1,4-Bis[((2-(3-acetyl-1-(4-nitrophenyl)-1H-pyrazole-4-yl)carbonyl)benzofuran-5-yl)methyl]piperazine 5e showed the best anti-bacterial efficacies with MIC/MBC values of 1.2/1.2, 1.2/2.4 and 1.2/2.4 mu M against each of E. coli, S. aureus and S. mutans strains, respectively. In addition, the inhibitory activity of some new bis(pyrazoles) as MRSA and VRE inhibitors were studied. Compound 5e gave the best inhibitory activity with MIC/MBC values of 18.1/36.2, 9.0/18.1 and 18.1/18.1 mu M, respectively, against MRSA (ATCC:33591 and ATCC:43300) and VRE (ATCC:51575) bacterial strains, respectively. Compound 5e showed more effective biofilm inhibition activities than the reference Ciprofloxacin. It showed IC50 values of 3.0 +/- 0.05, 3.2 +/- 0.08 and 3.3 +/- 0.07 mu M against S. aureus, S. mutans and E. coli strains, respectively. Furthermore, experimental study showed excellent inhibitory activities of 1,4-bis[((2-(3-substituted-1-aryl-1H-pyrazole-4-yl)carbonyl)benzofuran-5-yl)methyl]piperazine derivatives, attached to p-NO2 or p-Cl groups, against MurB enzyme. Compound 5e gave the best MurB inhibitory activity with IC50 value of 3.1 mu M. The in-silico study was performed to predict the capability of new derivatives as potential inhibitors of MurB enzyme.

Do you like my blog? If you like, you can also browse other articles about this kind. Thanks for taking the time to read the blog about 66357-35-5, Safety of Ranitidine.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

Application of 66357-35-5, The transformation of simple hydrocarbons into more complex and valuable products via catalytic C¨CH bond functionalisation has revolutionised modern synthetic chemistry. 66357-35-5, Name is Ranitidine, SMILES is O=[N+]([O-])/C=C(NCCSCC1=CC=C(O1)CN(C)C)NC, belongs to benzofurans compound. In a article, author is Guricova, Miroslava, introduce new discover of the category.

Synthesis, characterisation and electrochemical properties of Cr(0) aminocarbene complexes containing condensed heteroaromatic moiety

The series of new aminocarbene complexes of chromium(0) containing condensed benzoheteroaromatic substituents (N-methylindol-2-yl (1), N-methylindol-3-yl (1a), benzofuran-2-yl (2) and benzothien-2-yl (3)) were synthesised and fully characterised. The crystal structure of 3 was elucidated from single-crystal x-ray diffraction. Cyclic voltammetry was used to determine oxidation and the reduction properties of the synthesised compounds. The experimental results were compared with quantum chemical calculations performed with the density functional theory. The results show similar trends as other five-membered heterocyclic carbenes published previously. The first oxidation potentials are, in decreasing order, 2, 3 and 1. The oxidation potential of 1a is approximately 100 mV lower than that of 1. The reduction proceeds easily for 2 and 3 with close reduction potential values (-1.62 V and -1.63 V). On the other hand, the reduction of 1 and 1a is more difficult (-1.92 V and -2.07 V). (C) 2019 Elsevier B.V. All rights reserved.

Application of 66357-35-5, Enzymes are biological catalysts that produce large increases in reaction rates and tend to be specific for certain reactants and products. I hope my blog about 66357-35-5 is helpful to your research.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

Chemistry is an experimental science, Quality Control of Ranitidine, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 66357-35-5, Name is Ranitidine, molecular formula is C13H22N4O3S, belongs to benzofurans compound. In a document, author is Sundin, Charlotta.

Exploring resveratrol dimers as virulence blocking agents – Attenuation of type III secretion in Yersinia pseudotuberculosis and Pseudomonas aeruginosa

Bacterial infections continue to threaten humankind and the rapid spread of antibiotic resistant bacteria is alarming. Current antibiotics target essential bacterial processes and thereby apply a strong selective pressure on pathogenic and non-pathogenic bacteria alike. One alternative strategy is to block bacterial virulence systems that are essential for the ability to cause disease but not for general bacterial viability. We have previously show that the plant natural product (-)-hopeaphenol blocks the type III secretion system (T3SS) in the Gram-negative pathogens Yersinia pseudotuberculosis and Pseudomonas aeruginosa. (-)-Hopeaphenol is a resveratrol tetramer and in the present study we explore various resveratrol dimers, including partial structures of (-)-hopeaphenol, as T3SS inhibitors. To allow rapid and efficient assessment of T3SS inhibition in P. aeruginosa, we developed a new screening method by using a green fluorescent protein reporter under the control of the ExoS promoter. Using a panel of assays we showed that compounds with a benzofuran core structure i.e. viniferifuran, dehydroampelopsin B, anigopreissin A, dehydro-delta -viniferin and resveratrol-piceatannol hybrid displayed significant to moderate activities towards the T3SS in Y. pseudotuberculosis and P. aeruginosa.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 66357-35-5, in my other articles. Quality Control of Ranitidine.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

Chemistry, like all the natural sciences, Computed Properties of C13H22N4O3S, begins with the direct observation of nature¡ª in this case, of matter.66357-35-5, Name is Ranitidine, SMILES is O=[N+]([O-])/C=C(NCCSCC1=CC=C(O1)CN(C)C)NC, belongs to benzofurans compound. In a document, author is Scarpa de Souza, Edson Leonardo, introduce the new discover.

Iron-Catalyzed Meerwein Carbooxygenation of Electron-Rich Olefins: Studies with Styrenes, Vinyl Pyrrolidinone, and Vinyl Oxazolidinone

The arylative oxygenation of the electron-rich olefins styrene, a-methylstyrene, vinyl pyrrolidinone, and vinyl oxazolidinone was accomplished using arenediazonium salts and catalytic amounts of FeSO4 in an effective single electron transfer radical process. A broad range of aryldiazonium salts was tolerated using water, methanol, or their combination with acetonitrile to furnish the corresponding carbohydroxylated and carbomethoxylated products (42 examples), including functionalized dihydroisocoumarin and dihydrobenzofuran systems in good to excellent yields (up to 88%). The protocols developed for the Fe(II)catalyzed carbohydroxylation were also compared to Ru(II) and Ir(III) photoredox carbooxygenations of these electron-rich olefins. The Fe(II)catalyzed process proved to be highly competitive compared to the photoredox and the uncatalyzed processes. The proposed mechanism for the Fe(II)-catalyzed reactions involves the synergic combination with an effective Fe+2/Fe+3 redox system and a radical polar crossover mechanism featuring an unprecedented capture of the reactive N-acyliminium in the case of vinyl pyrrolidinone and vinyl oxazolidinone.

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. you can also check out more blogs about 66357-35-5. Computed Properties of C13H22N4O3S.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature. 66357-35-5, Name is Ranitidine, SMILES is O=[N+]([O-])/C=C(NCCSCC1=CC=C(O1)CN(C)C)NC, in an article , author is Ghamati, Zahra, once mentioned of 66357-35-5, Application In Synthesis of Ranitidine.

Synthesis, electrochemical, photophysical, and photovoltaic properties of new fluorescent compounds: 3H-benzofuro[2,3-b]pyrazolo[4,3-f]quinoline

The concern with fluorescent heterocyclic compounds has been growing because they can be utilized in dye-sensitized solar cells (DSSCs) as organic photosensitizers. As a result of the experiment we conducted, the following outcomes emerged: new fluorescent heterocyclic systems 3H-benzofuro[2,3-b]pyrazolo[4,3-f]quinolines ensued from reaction of 1-alkyl-5-nitro-1H-indazole with 2-(benzofuran-3-yl)acetonitrile in KOH/MeOH. New heterocyclic compounds were characterized through a use of elemental analysis and spectroscopic data. The results of the optical properties of the fluorescent compounds demonstrated that their fluorescence quantum yields are comparable to the quantum yields of such well-known fluorescent dyes as fluorescein. Furthermore, the cyclic voltammetry revealed the electrochemical attributes of the fluorescent heterocyclic systems and that reversible oxidation waves are observable in their case. In order for their photovoltaic performance parameters to be determined, the I-V curves and the IPCE spectra of the new compounds were launched into an investigation. What followed exposed that the photovoltaic performances of the foregoing compounds were 5.01% to 5.17%.

Interested yet? Read on for other articles about 66357-35-5, you can contact me at any time and look forward to more communication. Application In Synthesis of Ranitidine.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. The former is the study of compounds containing at least one carbon-hydrogen bonds. 66357-35-5, Name is Ranitidine, molecular formula is C13H22N4O3S, belongs to benzofurans compound, is a common compound. In a patnet, author is Dai, Jiajia, once mentioned the new application about 66357-35-5, Application In Synthesis of Ranitidine.

Fungal mycotoxin penisuloxazin A, a novel C-terminal Hsp90 inhibitor and characteristics of its analogues on Hsp90 function related to binding sites

Hsp90 is a promising drug target for cancer therapy. However, toxicity and moderate effect are limitations of current inhibitors owing to broad protein degradation. The fungal mycotoxin penisuloxazin A (PNSA) belongs to a new epipolythiodiketopiperazines (ETPs) possessing a rare 3H-spiro[benzofuran-2,2′-piperazine] ring system. PNSA bound to cysteine residues C572/C598 of CT-Hsp90 with disulfide bonds and inhibits Hsp90 activity, resulting in apoptosis and growth inhibition of HCT116 cells in vitro and in vivo. We identified that analogues PEN-A and HDN-1 bound to C572/C597 and C572 of CT-Hsp90 alpha respectively, with binding pattern very similar to PNSA. These ETPs exhibited different effects on ATPase activity, dimerization formation and selectivity on client protein of Hsp90, indicating client recognition of Hsp90 can be exactly regulated by different sites of Hsp90. Our findings not only offer new chemotypes for anticancer drug development, but also help to better understand biological function of Hsp90 for exploring inhibitor with some client protein bias.

We¡¯ll also look at important developments in the pharmaceutical industry because understanding organic chemistry is important in understanding health, medicine, 66357-35-5. The above is the message from the blog manager. Application In Synthesis of Ranitidine.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, such as the rate of change in the concentration of reactants or products with time. 66357-35-5, Name is Ranitidine, formurla is C13H22N4O3S. In a document, author is Fikejvar, Edris Mahdavi, introducing its new discovery. Formula: C13H22N4O3S.

A comparative study on the essential oil composition and antibacterial activities of different organs of wild growing Paeonia daurica subsp. tomentosa from Iran

Paeonia daurica subsp. tomentosa (Lomakin) D.Y.Hong is an herbaceous perennial and flowering plant from the Paeoniaceae family. In this research, the roots, stems, leaves and fruits of P. daurica subsp. tomentosa were investigated for a comparative identification of essential oil composition. The essential oils constituents were identified by GC/MS and then compared. The study leads to the identification of 31, 57, 66, and 57 components in the essential oils obtained from the roots, stems, leaves and fruits, respectively. These chemicals make up more than 99% of the essential oil. Some of the identified compounds (alpha-Pinene, 4-ethyloctane, 5-methylnonane, benzaldehyde, myrtanal, 4,7-dimethyl benzofuran, n-decane, cuminaldehyde, cis-p-mentha-6,8-diene-2-ol, salicylaldehyde, tetradecane, tetradecanal, and n-tricosane) occurred in all parts of the plant. The existence of compounds such as cembrene (1.1%), 13-epi-manool (1.5%), 2-hydroxy methyl benzoate (10.1%), and tridecanal (0.7%), however, were confirmed exclusively in the fruit, stem, root, and leaf, respectively. The antibacterial activities (MIC) of the oils obtained from the four studied Paeonia parts against Escherichia coli and Staphylococcus aureus was studied. Staphylococcus aureus was the most sensitive microorganism to the oil obtained from the fruits of P. daurica subsp. tomentosa with the value of 0.04 +/- 0.005 mg mL(-1).

If you are hungry for even more, make sure to check my other article about 66357-35-5, Formula: C13H22N4O3S.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

Electric Literature of 66357-35-5, As an important bridge between the micro and macro material world, chemistry is one of the main methods and means for humans to understand and transform the material world. 66357-35-5, Name is Ranitidine, SMILES is O=[N+]([O-])/C=C(NCCSCC1=CC=C(O1)CN(C)C)NC, belongs to benzofurans compound. In a article, author is Tasior, Manusz, introduce new discover of the category.

Fe(iii)-Catalyzed synthesis of pyrrolo[3,2-b]pyrroles: formation of new dyes and photophysical studies

The multicomponent reaction of primary aromatic amines, aromatic aldehydes and biacetyl leads to 1,2,4,5-tetraarylpyrrolo[3,2-b]pyrroles in yields as large as 77% when catalyzed by iron(iii) perchlorate. These new conditions enabled for the first time, the synthesis of pyrrolo[3,2-b]pyrroles from 5-membered heterocyclic aldehydes such as furan, thiophene, thiazole, and their benzo derivatives as well as from 1-aminonaphthalene, 3,5-bis(trifluoromethyl)aniline, and hexane-3,4-dione. Photophysical studies have revealed that pyrrolo[3,2-b]pyrroles possessing five-membered rings at positions 2 and 5 have large fluorescence quantum yields as well as bathochromicaly shifted absorption and emission compared to tetraphenyl-pyrrolopyrroles; the shift being particularly marked for both furan and benzofuran. Large Stokes shifts can be attained when substituents bearing multiple biaryl linkages are present at positions 2 and 5. The new fluorphores’ optical properties were rationalized through ab initio calculations relying on Time-Dependent Density Functional Theory (TD-DFT) and second-order Coupled Cluster (CC2) methods. These computational studies confirmed that low dihedral angles are the main cause for bathochromically shifted absorption and emission for pyrrolo[3,2-b]pyrroles bearing five-membered aromatic heterocycles.

Electric Literature of 66357-35-5, Each elementary reaction can be described in terms of its molecularity, the number of molecules that collide in that step. The slowest step in a reaction mechanism is the rate-determining step.you can also check out more blogs about 66357-35-5.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem

Reactions catalyzed within inorganic and organic materials and at electrochemical interfaces commonly occur at high coverage and in condensed media, causing turnover rates to depend strongly on interfacial structure and composition, 66357-35-5, Name is Ranitidine, SMILES is O=[N+]([O-])/C=C(NCCSCC1=CC=C(O1)CN(C)C)NC, in an article , author is Nakajima, Masaya, once mentioned of 66357-35-5, Formula: C13H22N4O3S.

Radical cascade cyclization for synthesizing 3,4-fused tricyclic benzofuran derivatives

A new method for synthesizing 3,4-fused tricyclic 3-alkylidene dihydrobenzofuran derivatives was developed. Treatment of propargyl iodophenol derivatives with a tethered alkene at the three contiguous positions under the radical cascade reaction conditions induced the reaction of the generated vinyl radical intermediates with the internal alkene, producing tricyclic 3-alkylidene dihydrobenzofurans in 25%-93% yield. The reaction products could be utilized as the precursors for 3,4-fused tricyclic benzofurans. (C) 2020 Elsevier Ltd. All rights reserved.

Interested yet? Read on for other articles about 66357-35-5, you can contact me at any time and look forward to more communication. Formula: C13H22N4O3S.

Reference:
Benzofuran – Wikipedia,
,Benzofuran | C8H6O – PubChem