Tag: M.W:100-200

Quality Control of 2-Mercapto-5-methylbenzimidazole. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Mercapto-5-methylbenzimidazole, is researched, Molecular C8H8N2S, CAS is 27231-36-3, about The effects of simultaneous treatment of SiO2 gate and Au electrode with octadecyltrichlorosilane and charge transfer molecules on characteristics of pentacene thin film transistors. Author is Pyo, Kyung Soo; Song, Chung Kun.

The authors studied the effects of treatment with octadecyltrichlorosilane (OTS) and the charge transfer mols. (CTM) such as 2-mercapto-5-nitrobenzimidazole (MNB), 2-mercapto-benzoxazole (MBX), 2-mercapto-benzthiazole (MBT), and 2-mercapto-5-methylbenzimidazole (MMB) on SiO2 and Au electrode on pentacene organic thin film transistors (OTFTs). Especially for improvement of the mobility and the contact resistance at the same time, the authors simultaneously treated SiO2 and Au electrode with OTS, MNB, and MBX. As the results, the authors could improve the mobility to 0.2 cm2/V s and reduce the contact resistance to 50 kΩ, corresponding to 10 times larger than the untreated OTFTs.

《The effects of simultaneous treatment of SiO2 gate and Au electrode with octadecyltrichlorosilane and charge transfer molecules on characteristics of pentacene thin film transistors》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(2-Mercapto-5-methylbenzimidazole)Quality Control of 2-Mercapto-5-methylbenzimidazole.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Cohen, Victor Israel; Pourabass, Soraya published the article 《Synthesis of some benzimidazole, benzoxazole and benzothiazole derivatives. Action of aliphatic seleno esters on some o-phenylenediamine, o-aminophenol and o-aminothiophenol and their derivatives》. Keywords: benzimidazole; benzoxazole; benzothiazole; aliphatic seleno ester reaction; phenylenediamine cyclization seleno ester; phenol amino cyclization seleno ester; thiophenol amino cyclization seleno ester.They researched the compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ).Quality Control 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.

Reaction of RC(Se)OEt (R = Me, Me2CH, pentyl, Pr, Et) with o-C6H4(NH2)2, o-HOC6H4NH2, o-HSC6H4NH2 or their derivatives gave 30-94% I (R = H, Cl, Me; R2 = H, Me, Z = NH, O, S). The mass spectra and NMR of I were studied.

《Synthesis of some benzimidazole, benzoxazole and benzothiazole derivatives. Action of aliphatic seleno esters on some o-phenylenediamine, o-aminophenol and o-aminothiophenol and their derivatives》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(2-Ethylbenzo[d]oxazole)Quality Control of 2-Ethylbenzo[d]oxazole.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Product Details of 6797-13-3. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 2-Ethylbenzo[d]oxazole, is researched, Molecular C9H9NO, CAS is 6797-13-3, about Regio- and Diastereoselective Decarboxylative Coupling of Heteroaromatic Alkanes. Author is Waetzig, Shelli R.; Tunge, Jon A..

Heteroaryl-substituted O-allylic esters R1R2R3CCO2CH2CH:CR4R5 [R1 = 2-pyridyl, 4,5-diphenyl-2-oxazolyl, 2-benzoxazolyl, 2-benzothiazolyl, 1-methyl-2-benzimidazolyl; R2 = H, R3 = Me, PhCH2; R2 = R3 = PhCH2; R2R3 = (CH2)5; R4 = H, R5 = Me, Ph; R4 = R5 = Me] undergo facile palladium-catalyzed decarboxylative coupling to afford heteroaryl-substituted terminal alkenes R1R2R3CCR4R5CH:CH2. The resulting C-C bond is formed with high diastereoselectivity and high regioselectivity for coupling at the more substituted allyl terminus. It is proposed that this unusual combination of selectivities results from a tandem allylation/aza-Cope rearrangement sequence. After allylation, decarboxylative dearomatization produces an intermediate for the aza-Cope rearrangement. The subsequent aza-Cope rearrangement occurs under mild conditions because it is driven by rearomatization.

《Regio- and Diastereoselective Decarboxylative Coupling of Heteroaromatic Alkanes》 provides a strategy for the preparation of materials with excellent comprehensive properties, which is conducive to broaden the application field of this compound(2-Ethylbenzo[d]oxazole)Product Details of 6797-13-3.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Whitcomb, D. R.; Swatloski, Richard P.; Rogers, Robin D. published an article about the compound: 2-Mercapto-5-methylbenzimidazole( cas:27231-36-3,SMILESS:SC1=NC2=CC(C)=CC=C2N1 ).Recommanded Product: 2-Mercapto-5-methylbenzimidazole. 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:27231-36-3) through the article.

The reaction of 5-methyl-2-mercaptobenzimidazole (5MBI) with silver ions in organic solvents form widely varying macrostructured or polymeric structures, depending on the anion type. In the case of carboxylate anions, the reaction of 5MBI with [Ag(O2CxH2x-1)]2 results in high yields of hexameric clusters containing bridging 5MBI units, [Ag·5MBI·THF]6, the details of which are reported here. The six silver atoms of [Ag·5MBI]6 are arranged as a trigonal antiprism with each 5MBI bonded to three silver atoms, two bridged with the sulfur and the 3rd bridged with the nitrogen. And comparison to the reaction of AgBr that forms a polymeric [AgBr·MBI(acetone)0.5]4 complex, a mixture of different complexes may be expected to form in a photothermog. imaging construction.

This compound(2-Mercapto-5-methylbenzimidazole)Recommanded Product: 2-Mercapto-5-methylbenzimidazole was discussed at the molecular level, the effects of temperature and reaction time on the properties of the compound were discussed, and the optimum reaction conditions were selected.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ) is researched.COA of Formula: C9H9NO.Sung, Gi Hyeon; Lee, In-Hye; Kim, Bo Ram; Shin, Dong-Soo; Kim, Jeum-Jong; Lee, Sang-Gyeong; Yoon, Yong-Jin published the article 《Eco-friendly atom-economical synthesis of 2-substituted-benzo[d]thiazoles and 2-substituted-benzo[d]oxazoles using 2-acylpyridazin-3(2H)-ones》 about this compound( cas:6797-13-3 ) in Tetrahedron. Keywords: aminothiophenol acylpyridazinone cyclocondensation; aminophenol acylpyridazinone cyclocondensation; benzothiazole green preparation; benzooxazole green preparation. Let’s learn more about this compound (cas:6797-13-3).

The synthesis of benzo[d]thiazoles and benzo[d]oxazoles using 2-acylpyridazin-3(2H)-ones as acyl transfer agents under transition-metal-free and eco-friendly conditions, was carried out. It is worthy to note that the reaction is efficient, green, and economical, and will find several applications in organic synthesis, medicinal chem., and industrial chem.

Different reactions of this compound(2-Ethylbenzo[d]oxazole)COA of Formula: C9H9NO require different conditions, so the reaction conditions are very important.

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: 6797-13-3, is researched, Molecular C9H9NO, about Trithiocyclopropenium ion as a building block for nitrogen heterocycle synthesis, the main research direction is thiocyclopropenium perchlorate synthon nitrogen heterocycle; cyclopropenium trithio perchlorate synthon nitrogen heterocycle.Application In Synthesis of 2-Ethylbenzo[d]oxazole.

A new methodol. for heterocycle synthesis using trithiocyclopropenium salt as a building block is described. Tris(tert-butylthio)cyclopropenium perchlorate (I) reacts with β-amino acids under basic conditions to give 1,2-dihydropyridines, where cyclopropenium salt serves as the 3 C homologator in heterocyclic ring formation. The selective syntheses of 1,5-benzodiazepines and benzimidazoles from I are also described. Reaction of I with o-phenylenediamines in DME gives 1,5-benzodiazepines as a single product but in MeOH benzimidazoles. The selective formation of 1,5-benzodiazepines and benzimidazoles could be accounted for by the solvent participation in the cyclization step.

Different reactions of this compound(2-Ethylbenzo[d]oxazole)Application In Synthesis of 2-Ethylbenzo[d]oxazole require different conditions, so the reaction conditions are very important.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

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 Reaction of 3-iodo-4H-1-benzopyran-4-one with 2-mercaptobenzimidazoles, the main research direction is iodobenzopyranone condensation mercaptobenzimidazole; iodochromone condensation mercaptobenzimidazole.COA of Formula: C8H8N2S.

Refluxing 3-iodo-4H-1-benzopyran-4-one with 2-mercaptobenzimodazole in DMF in the presence of Bu4NCl for 2 h gave 68% 3-(2-benzimidazolylthio)-4H-1-benzopyran-4-one. Also prepared were 3-(5-methyl-2-benzimidazolylthio)-4H-1-benzopyran-4-one and 3-(2-imidazolylthio)-4H-1-benzopyran-4-one.

Different reactions of this compound(2-Mercapto-5-methylbenzimidazole)COA of Formula: C8H8N2S require different conditions, so the reaction conditions are very important.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

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.Li, Zhenhua; Jin, Guoqiang; Qin, Jingjing; Tan, Zhiyong; He, Jiayu researched the compound: 2-Ethylbenzo[d]oxazole( cas:6797-13-3 ).SDS of cas: 6797-13-3.They published the article 《Efficient and divergent synthesis of benzoxazoles and 1,2-benzisoxazoles from o-hydroxyaryl ketoximes》 about this compound( cas:6797-13-3 ) in Heterocycles. Keywords: hydroxy acetophenone oxime tandem Beckmann rearrangement regioselective oxacyclization; benzoxazole preparation; benzisoxazole preparation. We’ll tell you more about this compound (cas:6797-13-3).

A bis(trichloromethyl) carbonate (BTC) / triphenylphosphine oxide (TPPO) system promoting tunable cyclization of a variety of o-hydroxyaryl ketoximes to benzoxazoles and benzisoxazoles was developed. The synthetic switch was enabled by base-free or the use of Et3N. Under base-free conditions, o-hydroxyaryl ketoximes were treated with BTC/TPPO giving corresponding 2-substituted benzoxazoles via cascaded Beckmann rearrangement and intramol. oxa-cyclization. Analogously, the 3-substituted benzisoxazoles were obtained via intramol. nucleophilic substitution reactions in the presence of Et3N. This process features mild reaction conditions, high chemoselectivity and good functional groups tolerance.

Different reactions of this compound(2-Ethylbenzo[d]oxazole)SDS of cas: 6797-13-3 require different conditions, so the reaction conditions are very important.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Electric Literature of C8H8N2S. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 2-Mercapto-5-methylbenzimidazole, is researched, Molecular C8H8N2S, CAS is 27231-36-3, about Synthesis of benzimidazo[2,1-b]benzothiazole derivatives through sequential Cu-catalyzed domino coupling and Pd-catalyzed Suzuki reaction. Author is Gao, Jilong; Zhu, Jiaoyan; Chen, Lubin; Shao, Yingying; Zhu, Jiaqi; Huang, Yijia; Wang, Xiaoxia; Lv, Xin.

A variety of benzo[d]benzo[4,5]imidazo[2,1-b]thiazoles were efficiently and conveniently synthesized from the Cu-catalyzed domino coupling of ortho-dihalo arenes with 2-mercaptobenzimidazoles. The reaction is also applicable to a series of multifunctional substrates, affording the halo-containing products with excellent selectivity. The brominated products can further react with arylboronic acids under Pd catalysis to furnish the arylated benzimidazo[2,1-b]benzothiazole derivatives

Different reactions of this compound(2-Mercapto-5-methylbenzimidazole)Electric Literature of C8H8N2S require different conditions, so the reaction conditions are very important.

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem

Computed Properties of C9H9NO. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 2-Ethylbenzo[d]oxazole, is researched, Molecular C9H9NO, CAS is 6797-13-3, about Building Heterocyclic Systems with RC(OR)2+ Carbocations in Recyclable Bronsted Acidic Ionic Liquids: Facile Synthesis of 1-Substituted 1H-1,2,3,4-Tetrazoles, Benzazoles and Other Ring Systems with CH(OEt)3 and EtC(OEt)3 in [EtNH3][NO3] and [PMIM(SO3H)][OTf]. Author is Aridoss, Gopalakrishnan; Laali, Kenneth K..

1-Aryl/alkyl-1H-1,2,3,4-tetrazoles can conveniently be synthesized in one-pot reactions from the corresponding amines by reaction with TMSN3 and CH(OEt)3 using the readily available, recyclable, Bronsted acidic ionic liquids [EtNH3][NO3] (IL-1) and [PMIM(SO3H)][OTf] [IL-2, 1-methyl-3-(propyl-3-sulfonyl)imidazolium trifluoromethanesulfonate] under mild conditions in high yields. Based on comparative reactions, whereas both ILs are excellent promoters, reactions are completed with shorter reaction times and in higher yields with IL-2. Among 24 examples provided, identical products were obtained via the two ILs, except in the case of 2-aminobenzoic acid where tetrazole was formed with IL-2 and 2-ethylquinazolin-4(3H)-one was formed with IL-1. By leaving out TMSN3 from the reaction, the in-situ formed CH(OEt)2+ and EtC(OEt)2+ (via their corresponding orthoesters) react under sonication with o-phenylenediamine bearing various substituents, o-aminothiophenol, and o-aminophenol to form a wide array of benzazoles (benzimidazole, benzothiazole, and benzoxazole) and quinazolin-4(3H)-one in high yields (18 examples). The two ILs reacted differently in reaction with 2-aminobenzamide, whereas quinazolin-4(3H)-one was formed with IL-2/CH(OEt)3, the “”unexpected”” N-ethylquinazolin-4(3H)-one was isolated with IL-1/CH(OEt)3. The latter was also formed from 2-aminobenzoic acid in IL-1/CH(OEt)3. Mechanistic implications are addressed. The reported protocols enable rapid assembly of a host of heterocyclic systems in high yields with the added advantage of recycling and re-use of the ILs.

The article 《Building Heterocyclic Systems with RC(OR)2+ Carbocations in Recyclable Bronsted Acidic Ionic Liquids: Facile Synthesis of 1-Substituted 1H-1,2,3,4-Tetrazoles, Benzazoles and Other Ring Systems with CH(OEt)3 and EtC(OEt)3 in [EtNH3][NO3] and [PMIM(SO3H)][OTf]》 also mentions many details about this compound(6797-13-3)Computed Properties of C9H9NO, you can pay attention to it, because details determine success or failure

Reference:
Benzoxazole – Wikipedia,
Benzoxazole | C7H5NO – PubChem