Day: April 12, 2022

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-Mercapto-5-methylbenzimidazole, is researched, Molecular C8H8N2S, CAS is 27231-36-3, about Design, synthesis and biological evaluation of benzimidazole/benzothiazole and benzoxazole derivatives as cyclooxygenase inhibitors, the main research direction is mercaptobenzimidazole benzyl alc etherification; benzimidazole thioether preparation cyclooxygenase inhibitor; mercaptobenzothiazole benzyl alc etherification; benzothiazole thioether preparation cyclooxygenase inhibitor; mercaptobenzoxazole benzyl alc etherification; benzoxazole thioether preparation cyclooxygenase inhibitor.SDS of cas: 27231-36-3.

A series of 2-[[(2-alkoxy-6-pentadecylphenyl)methyl]thio]-1H-benzimidazoles, benzothiazoles and benzoxazoles have been prepared from anacardic acid and their ability to inhibit human cyclooxygenase-2 enzyme (COX-2) investigated. The active compounds were screened for cyclooxygenase-1 (COX-1) inhibition. I (X = NH; R1 = H; R2 = OMe) is 384-fold and I (X = S; R1 = Me; R2 = H) is more than 470-fold selective towards COX-2 compared to COX-1. Thus, this class of compounds may serve as excellent candidates for selective COX-2 inhibition.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Related Products of 6797-13-3. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 2-Ethylbenzo[d]oxazole, is researched, Molecular C9H9NO, CAS is 6797-13-3, about Ruthenium-Catalyzed Synthesis of Benzoxazoles Using Acceptorless Dehydrogenative Coupling Reaction of Primary Alcohols with 2-Aminophenol under Heterogeneous Conditions. Author is Khalafi-Nezhad, Ali; Panahi, Farhad.

An efficient ruthenium-catalyzed acceptorless dehydrogenative coupling reaction of primary alcs. with 2-aminophenol for one-pot synthesis of benzoxazoles e. g., I, is introduced. The phosphine-functionalized magnetic nanoparticles (PFMNPs; Fe3O4@SiO2@PPh2) as a magnetic recyclable phosphorus ligand in the presence of Ru2Cl4(CO)6 was found to be an efficient heterogeneous catalytic system for promotion of the designed protocol. The reaction was carried out efficiently with a variety of substrates to give the corresponding products in moderate to good yields.

In addition to the literature in the link below, there is a lot of literature about this compound(2-Ethylbenzo[d]oxazole)Related Products of 6797-13-3, illustrating the importance and wide applicability of this compound(6797-13-3).

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Ames, Jennifer M.; Guy, Robin C. E.; Kipping, Gary J. published the article 《Effect of pH, Temperature, and Moisture on the Formation of Volatile Compounds in Glycine/Glucose Model Systems》. Keywords: glycine glucose aroma compound Maillard reaction; extrusion cooking glycine glucose Maillard reaction.They researched the compound: 1-(Furan-2-yl)propan-1-one( cas:3194-15-8 ).Name: 1-(Furan-2-yl)propan-1-one. 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:3194-15-8) here.

Mixtures of glycine, glucose, and starch were extrusion cooked using sodium hydroxide at 0, 3, and 6 g/L of extruder water feed, 18% moisture, and 120, 150, and 180 °C target die temperatures, giving extrudates with pH values of 5.6, 6.8, and 7.4. Freeze-dried equimolar solutions of glucose and glycine were heated either dry or after equilibration to ∼13% moisture at 180°C in a reaction-tube system designed to mimic the heating profile in an extruder. Volatile compounds were isolated onto Tenax and analyzed by gas chromatog.-mass spectrometry. For the extrudates, total yields of volatiles increased with decreasing pH at 180°C, reached a maximum at pH 6.8 at 150°C, and increased with increasing pH at 120°C. Amounts increased with temperature at all pH values. Pyrazines were the most abundant class for all sets of conditions (54-79% of total volatiles). Pyrroles, ketones, furans, oxazoles, and pyridines were also identified. Yields of volatiles from the reaction-tube samples increased by >60% in the moist system. Levels of individual classes also increased in the presence of moisture, except pyrazines, which decreased ∼3.5-fold. Twenty-one of the compounds were common to the reaction-tube samples and the extrudates.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Mohammadpoor-Baltork, I.; Moghadam, M.; Tangestaninejad, S.; Mirkhani, V.; Zolfigol, M. A.; Hojati, S. F. published the article 《Silica sulfuric acid catalyzed synthesis of benzoxazoles, benzimidazoles and oxazolo[4,5-b]pyridines under heterogeneous and solvent-free conditions》. Keywords: orthoester aminophenol phenylenediamine aminopyridinol cyclization silica sulfuric acid catalyst; benzoxazole preparation orthoester aminophenol cyclization silica sulfuric acid catalyst; benzimidazole preparation orthoester phenylenediamine cyclization silica sulfuric acid catalyst; oxazolopyridine preparation orthoester aminopyridineol cyclization silica sulfuric acid catalyst.They researched the compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ).Synthetic Route of C9H9NO. 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 simple, rapid and efficient method for the preparation of benzoxazoles, benzimidazoles and oxazolo[4,5-b]pyridines from the reaction of orthoesters with o-aminophenols, o-phenylenediamine and 2-amino-3-hydroxypyridine in the presence of silica sulfuric acid under heterogeneous and solvent-free conditions is reported. The significant features of this method are short reaction times, high yields of the products, mild reaction conditions, solvent free reaction, cheapness, non-toxicity and reusability of the catalyst.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Application of 33941-15-0. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 1,4,7,10,13-Pentaoxa-16-azacyclooctadecane, is researched, Molecular C12H25NO5, CAS is 33941-15-0, about Axially- and Meso-Substituted Aza-Crown-Ether-Incorporated BIII Subporphyrins: Control of Electron-Donating Ability by Metal Ion Chelation.

A series of subporphyrin-based fluorescent probes bearing 1-aza-15-crown-5 or 1-aza-18-crown-6 moieties at the meso or axial positions were prepared by Pd-catalyzed Buchwald-Hartwig amination reaction of the corresponding bromosubporphyrins. Both types of aza-crown-ether-incorporated subporphyrins were fluorescent in solution and exhibited cation-dependent absorption and fluorescence changes. In fluorescence titration experiments, opposite responses were observed for the two types of subporphyrins. Namely, fluorescence quenching occurred for the meso-substituted subporphyrins while fluorescence enhancement was observed for the axially-substituted subporphyrins. These results demonstrate the advantage of subporphyrins being viable to serve as turn-off-type or turn-on-type fluorescence probes, depending upon substitution pattern.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Recommanded Product: 2-Mercapto-5-methylbenzimidazole. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 2-Mercapto-5-methylbenzimidazole, is researched, Molecular C8H8N2S, CAS is 27231-36-3, about Microwave-assisted synthesis of 3-[2-(1H-benzimidazol-2-yl-sulfanyl)-acetyl]-chromen-2-ones.

Synthesis of some new 3-[2-(1H-benzimidazol-2-yl-sulfanyl)-acetyl]-chromen-2-ones by treatment of 2-mercaptobenzimidazoles with 3-(2-bromoacetyl)chromen-2-one under microwave irradiation technique was described.

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Jiang, Yu-Han; Qiu, Qi-Ming; Jiang, Rui-Xia; Huang, Xu; Jin, Qiong-Hua published the article 《Iodido[5-methyl-1H-benzimidazole-2(3H)-thione-κS]bis(triphenylphosphane-κP)copper(I) methanol monosolvate》. Keywords: mol structure copper iodido methylbenzimidazolethione triphenylphosphine complex methanol solvate; crystal structure copper iodido methylbenzimidazolethione triphenylphosphine complex methanol solvate; hydrogen bond copper iodido methylbenzimidazolethione triphenylphosphine complex methanol solvate.They researched the compound: 2-Mercapto-5-methylbenzimidazole( cas:27231-36-3 ).Quality Control of 2-Mercapto-5-methylbenzimidazole. 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:27231-36-3) here.

In the title compound, [CuI(C8H8N2S)(C18H15P)2]·MeOH, the coordination environment around the CuI atom is distorted tetrahedral, defined by two P atoms of two PPh3 ligands, one S atom of a 5-methyl-1H-benzimidazole-2(3H)-thione ligand and one I atom. The complex mols. and the MeOH solvent mols. are connected via N-H···O and O-H···I H bonds, forming a chain along [010]. An intramol. N-H···I H bond is also observed Crystallog. data and at. coordinates are given.

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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, Organic Letters called Modular Synthesis of Highly Substituted Pyridines via Enolate α-Alkenylation, Author is Hardegger, Leo A.; Habegger, Jacqueline; Donohoe, Timothy J., which mentions a compound: 3194-15-8, SMILESS is O=C(C1=CC=CO1)CC, Molecular C7H8O2, SDS of cas: 3194-15-8.

A novel methodol. for the synthesis of highly substituted pyridines e. g., I, based on the palladium-catalyzed enolate α-alkenylation of ketones is presented; the formation of aromatic compounds is a new direction for this catalytic C-C bond forming reaction. In the key step, a protected β-haloalkenylaldehyde participates in α-alkenylation with a ketone to afford a 1,5-dicarbonyl surrogate, which then undergoes cyclization/double elimination to the corresponding pyridine product, all in one pot. The β-haloalkenylaldehyde starting materials can be obtained from the corresponding methylene ketone via Vilsmeier haloformylation. Using this concise route, a variety of highly substituted pyridines were synthesized in three steps from com. available compounds

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Safety of 2-Ethylbenzo[d]oxazole. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: 2-Ethylbenzo[d]oxazole, is researched, Molecular C9H9NO, CAS is 6797-13-3, about Synergistic catalysis: highly diastereoselective benzoxazole addition to Morita-Baylis-Hillman carbonates.

An expedited method was developed for the diastereoselective synthesis of highly functionalized alkyl-azaarene systems with good yield and high diastereoselectivity (>15:1 dr). The methodol. includes a synergistic catalysis event involving organometallic (10 mol% AgOAc) activation of an alkyl azaarene and Lewis base (10 mol% DABCO, 1,4-diazabicyclo[2.2.2]octane) activation of a Morita-Baylis-Hillman carbonate. The structure and relative configuration of a representative product were confirmed by X-ray anal. The synthesis of the target compounds was achieved by a reaction of (alkyl)benzoxazole derivatives, such as 2-ethyl-6-(nitro)benzoxazole, 5-chloro-2-ethyl-6-nitrobenzoxazole, 2-(ethyl)oxazolo[5.4-b]pyridine, 4-methyl-3-nitropyridine, with Morita-Baylis-Hillman carbonates, such as β-[[(1,1-dimethylethoxy)carbonyl]oxy]-α-(methylene)benzenepropanoic acid ester derivatives

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Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Alkylation of furan with olefins. VI. Examination of products of alkylation of furan with olefins by gas chromatography》. Authors are Hillers, S.; Andersons, A.; Berzina, A..The article about the compound:1-(Furan-2-yl)propan-1-onecas:3194-15-8,SMILESS:O=C(C1=CC=CO1)CC).Category: benzoxazole. Through the article, more information about this compound (cas:3194-15-8) is conveyed.

cf. CA 59, 1564h, 5106g. Alkyl furans were identified by gas chromatography at 120-50° in a 3.3-m. long column filled with Celite 545 containing 25% silicone E 301 or dinonyl phthalate. The flow rate of the carrier gas (He) was 1.5 l./hr. The alkyl furans were identified by means of the relation between the log of the retention volume and the number of C atoms in the side chains. In the preparation of chromatographic standards the following new furan derivatives were prepared: 2-propionylfuran (I) hydrazone, b5 91°; I semicarbazone, m. 154°; 2-propyl-5-furylmercuri chloride, m. 99°; 2-butyrylfuran (II) hydrazone, b5 95°; II semicarbazone, m. 180-1°; 2-butyl-5-furylmercuri chloride, m. 77°.

There are many compounds similar to this compound(3194-15-8)Category: benzoxazole. if you want to know more, you can check out my other articles. I hope it will help you，maybe you’ll find some useful information.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem