Category: benzoxazole

Recommanded Product: 2-Ethylbenzo[d]oxazole. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: 2-Ethylbenzo[d]oxazole, is researched, Molecular C9H9NO, CAS is 6797-13-3, about Inhibitors of hepatic mixed function oxidases. V. Inhibition of aminopyrine N-demethylation and enhancement of aniline hydroxylation by benzoxazole derivatives. Author is Little, Peter J.; Ryan, Adrian J..

All of a series of 12 benzoxazoles tested inhibited aminopyrine N-demethylase (I) activity of rat liver microsomes from phenobarbitone-treated rats, and there was an apparent relation between inhibitory potency and partition coefficient For the 2-alkylbenzoxazole series, inhibitory potency towards I activity increased as the number of C atoms in the alkyl side chain increased. Substitution of a Me group into the 2 or 5 position of the benzoxazole nucleus produced a 2- to 3-fold increase in inhibitory potential for each instance. Eleven of the benzoxazoles enhanced aniline p-hydroxylase activity in rat liver microsomes, whereas one, zoxazolamine, was inhibitory; no relation was apparent between physicochem. properties and degree of enhancement of aniline p-hydroxylase activity.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called An efficient method for the determination of furan derivatives in apple cider and wine by solid phase extraction and high performance liquid chromatography-Diode array detector, published in 2013-04-05, which mentions a compound: 3194-15-8, Name is 1-(Furan-2-yl)propan-1-one, Molecular C7H8O2, Electric Literature of C7H8O2.

A reliable SPE-HPLC/DAD method was developed for the simultaneous separation and quantitation of 10 furan derivatives in apple cider and wine matrixes, including 5-hydroxymethyl-2-furaldehyde (5-HMFD), 4-hydroxy-2,5-dimethyl-3(2H)-furanone (4-HDMF), 2-furoic acid (2-FA), 2-furaldehyde (2-F), 3-furaldehyde (3-F), 2-acetylfuran (2-AF), 5-methyl-2-furaldehyde (5-MFD), Me 2-furoate (MFT), 2-propionylfuran (2-PF) and Et 2-furoate (EFT). All the compounds were satisfactorily separated on a C18 column in less than 30 min. The solid phase extraction parameters have been optimized, including the sorbent, sample volume, washing and elution solvent. The relative standard deviations (RSDs) (intra- and inter-day) of all analytes were less than 6.4% for apple cider at 5 mg/L spiking level and less than 3.9% (except 2-FA) for wine at 0.5 mg/L spiking level. The limits of detection (LOD) and limits of quantitation (LOQ) were low (LOD 0.002-0.093 mg/L, LOQ 0.01-0.31 mg/L) compared to the usual concentrations of these compounds in these food matrixes. The absolute recoveries of all compounds were higher than 77.8% (most of them were 80.5-103%) at different spiking levels (apple cider 0.5-50 mg/L). The results showed that the developed method was precise, sensitive, robust and of good selectivity.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Shelkar, Radheshyam; Sarode, Sachin; Nagarkar, Jayashree published the article 《Nano ceria catalyzed synthesis of substituted benzimidazole, benzothiazole, and benzoxazole in aqueous media》. Keywords: phenylenediamine aldehyde nano ceria cyclocondensation catalyst; benzimidazole preparation green chem; aminothiophenol aldehyde nano ceria cyclocondensation catalyst; benzothiazole preparation green chem; aminophenol aldehyde nano ceria cyclocondensation catalyst; benzoxazole preparation green chem.They researched the compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ).Reference of 2-Ethylbenzo[d]oxazole. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:6797-13-3) here.

A series of substituted benzimidazoles, benzothiazoles, and benzoxazoles was synthesized by combining 1,2-phenylenediamine, 2-aminothiophenol, or 2-aminophenol with aryl, heteroaryl, aliphatic, α,β-unsaturated aldehydes in the presence of nano ceria (CeO2) as an efficient heterogeneous catalyst.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Hargrave, Jonathan D.; Allen, Joseph C.; Kociok-Koehn, Gabriele; Bish, Gerwyn; Frost, Christopher G. published an article about the compound: (R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole( cas:503538-69-0,SMILESS:FC1(F)OC2=CC=C(P(C3=CC=CC=C3)C4=CC=CC=C4)C(C5=C6OC(F)(F)OC6=CC=C5P(C7=CC=CC=C7)C8=CC=CC=C8)=C2O1 ).Computed Properties of C38H24F4O4P2. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:503538-69-0) through the article.

A Dieckmann-type cyclization coupled to an arylation reaction was used to synthesize the title compounds, e.g., I, with up to 96% ee from amine-tethered ester-substituted acrylates. The presence of a coordinating functionality in the substrate, e.g., II, induces a competition between cyclization and elimination pathways that is influenced by the nature of the chiral ligand. A mechanistic rationale is proposed to account for these observations.

Compounds in my other articles are similar to this one((R)-5,5′-Bis(diphenylphosphino)-2,2,2′,2′-tetrafluoro-4,4′-bi-1,3-benzodioxole)Computed Properties of C38H24F4O4P2, you can compare them to see their pros and cons in some ways,such as convenient, effective and so on.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 96651-85-3, is researched, Molecular C13H18ClN, about Spiropiperidines as high-affinity, selective σ ligands., the main research direction is spiropiperidine selective sigma ligand; tetralin spiropiperidino selective sigma ligand; indan spiropiperidino selective sigma ligand; benzocycloheptane spiropiperidino selective sigma ligand; radioligand displacement spiropiperidinobenzocycloalkane; structure activity spiropiperidinobenzocycloalkane receptor binding.Related Products of 96651-85-3.

A variety of achiral conformationally restricted spirocyclic piperidines were prepared in an attempt to investigate the functional role of the central σ recognition site. All compounds possessed a lipophilic N-substituent incorporating either a tetralin (I; n = 2, R = PhCH2, Bu, hexyl, 2-picolyl, cyclohexylmethyl, CH2CH:CH2, 2-furylmethyl, 2-thienylmethyl, CH2CH:CMe2, etc.), indan (I; n = 1, R = PhCH2, PhCH2CH2, CH2CH:CMe2, Bu, etc.), or benzocycloheptane skeleton (I; n = 3, R = PhCH2, Bu). Their in vitro affinity at the σ site was assessed in radioligand displacement experiments with guinea pig cerebellum homogenates using the σ-specific radioligand N,N-di-o-[5-3H]-tolylguanidine (II). A study of the structure-activity relationships identified the N-Bu and N-dimethylallyl substituents as the optimum groups for high affinity and selectivity at the σ site, e.g., I (n = 1, R = CH2CH:CMe2), pIC50 = 8.9 vs II and >10,000-fold selective over the dopamine D2 receptor. Such compounds are amongst the highest affinity σ ligands reported to date, with excellent selectivity over the dopamine D2 receptor, and may serve as a useful tool for exploring the physiol. role of the σ site.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-(Furan-2-yl)propan-1-one, is researched, Molecular C7H8O2, CAS is 3194-15-8, about Effect of technological measures in malt, wort and beer production on aroma compounds relevant to beer aging, the main research direction is aroma compound malt wort beer production.Computed Properties of C7H8O2.

Several technol. parameters of brewing were investigated to evaluate the possible effects of the brewer on the flavor stability of beer. In these trials, beers were brewed on the pilot-scale. It was found that a higher proteolytic modification of the malt effected increased levels of compounds relevant to aging and produced an intensive aging aroma. Longer hot holding times of the wort in the whirlpool led to a deterioration of the flavor stability. Higher temperatures during the main fermentation brought an.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Electric Literature of C7H8O2. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-(Furan-2-yl)propan-1-one, is researched, Molecular C7H8O2, CAS is 3194-15-8, about Isomerization of Allylic Alcohols to Ketones Catalyzed by Well-Defined Iron PNP Pincer Catalysts. Author is Xia, Tian; Wei, Zhihong; Spiegelberg, Brian; Jiao, Haijun; Hinze, Sandra; de Vries, Johannes G..

[Fe(PNP)(CO)HCl] (PNP=di-(2-diisopropylphosphanyl-ethyl)amine), activated in situ with KOtBu, is a highly active catalyst for the isomerization of allylic alcs. to ketones without an external hydrogen supply. High reaction rates were obtained at 80 °, but the catalyst is also sufficiently active at room temperature with most substrates. The reaction follows a self-hydrogen-borrowing mechanism, as verified by DFT calculations An alternative isomerization through alkene insertion and β-hydride elimination could be excluded on the basis of a much higher barrier. In alc. solvents, the ketone product is further reduced to the saturated alc.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Application In Synthesis of 2-Mercapto-5-methylbenzimidazole. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Mercapto-5-methylbenzimidazole, is researched, Molecular C8H8N2S, CAS is 27231-36-3, about An expeditious microwave-assisted synthesis of mercapto benzazoles, quinazolinone and oxadiazoles. Author is Kumar, N. D. Mahesh; Dubey, P. K..

A simple, convenient, and high-yielding synthetic method for the preparation of mercapto derivatives of benzimidazoles, benzoxazole, benzothiazole, and quinazolinone as well as 5-substituted 1,3,4-oxadiazoles by the treatment of a series of O-, S-, and N-heteroatom-containing bifunctional mols., i.e. functionalized anilines and aromatic hydrazides, resp., with KS2COCHMe2 under microwave irradiation is described.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Article, Journal of Organic Chemistry called Synthesis of Benzoxazoles from 2-Aminophenols and β-Diketones Using a Combined Catalyst of Bronsted Acid and Copper Iodide, Author is Mayo, Muhammad Shareef; Yu, Xiaoqiang; Zhou, Xiaoyu; Feng, Xiujuan; Yamamoto, Yoshinori; Bao, Ming, which mentions a compound: 6797-13-3, SMILESS is CCC1=NC2=CC=CC=C2O1, Molecular C9H9NO, Recommanded Product: 2-Ethylbenzo[d]oxazole.

Cyclization reactions of 2-aminophenols with β-diketones catalyzed by a combination of Bronsted acid and CuI are presented. Various 2-substituted benzoxazoles were obtained through these reactions. Different substituents such as Me, chloro, bromo, nitro, and methoxy on 2-aminophenol are tolerated under the optimized reaction conditions.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Category: benzoxazole. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: 2-Mercapto-5-methylbenzimidazole, is researched, Molecular C8H8N2S, CAS is 27231-36-3, about Electrochemical study of 2-mercaptoimidazole as a novel corrosion inhibitor for steels. Author is Alvarez-Bustamante, R.; Negron-Silva, G.; Abreu-Quijano, M.; Herrera-Hernandez, H.; Romero-Romo, M.; Cuan, A.; Palomar-Pardave, M..

From electrochem. methods, polarization resistance and electrochem. impedance spectroscopy, the corrosion susceptibility of pipeline steel samples immersed in 1 M H2SO4 was determined using nil and different concentrations of the mol. 2-mercaptoimidazole (2MI). A corrosion inhibiting efficiency, IE, value of 98.5% was reached when the 2MI concentration in the system increased to 25 ppm. Also, at this concentration, the 2MI IE was measured as a function of time finding that the IE kinetics follows the relation: %IE = 98.5-0.03t after 800 h of evaluation. During the 1st 200 h 2MI IE was higher that 90% then, it decreased to 70% and it remained constant up to 1200 h. This compound can affect both the anodic and cathodic processes, thus it can be classified as a mixed-type inhibitor however, from variation of both corrosion potential and polarization resistance with [2MI] it was possible to state that the anodic reaction rate, of the corrosion process, decreases at a greater proportion than the cathodic one. 2MI follows an adsorption mechanism, which can be adequately described by the Langmuir isotherm with an adsorption standard free energy difference (ΔG°ads) of -26.8 kJ mol-1. To analyze the influence of substituting groups, both electron-donating and electron-attracting and the number of π-electrons on the corrosion inhibiting properties of organic mols., an electrochem. study was carried out on four different mols. having similar chem. framework structure: 2-mercaptoimidazole (2MI), 2-mercaptobenzoimidazole (2MBI) 2-mercapto-5-methylbenzimidazole (2M5MBI) and 2-mercapto-5-nitrobenzimidazole (2M5NBI). The IE order followed by the mols. tested was 2MI > 2MBI > 2M5MBI > 2M5NBI. Thus 2MI turned out to be the best inhibitor, even superior to the 2MBI. This fact strongly suggests that, contrary to a hitherto generally suggested notion, an efficient corrosion inhibiting mol. does not require to be a large one, also bearing an extensive number of π-electrons.

In addition to the literature in the link below, there is a lot of literature about this compound(2-Mercapto-5-methylbenzimidazole)Category: benzoxazole, illustrating the importance and wide applicability of this compound(27231-36-3).

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem