Day: May 10, 2021

Chemistry is traditionally divided into organic and inorganic chemistry. Recommanded Product: 4-Methylbenzo[b]thiophene, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent，Which mentioned a new discovery about 14315-11-8

Degradation of the petroleum component’s monomethylbenzothiophenes on exposure to light

The photochemical degradation of monomethylated benzo[b]thiophenes in aqueous solution was studied to elucidate the fate of crude oil components after an oil spill. One principal reaction pathway involves oxidation of the methyl group(s) to the carboxylic acids via aldehydes. Another pathway leads via oxidation of the thiophene ring to the quinone and then, after ring opening, to 2-sulfobenzoic acids as the ultimate products for all compounds. Opening of the benzo ring is also seen in which case thiophene aldehydes or ketones are formed.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

Related Products of 22913-24-2, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.22913-24-2, Name is Methyl benzo[b]thiophene-2-carboxylate, molecular formula is C10H8O2S. In a Article，once mentioned of 22913-24-2

Visible Light-Promoted Photocatalytic C-5 Carboxylation of 8-Aminoquinoline Amides and Sulfonamides via a Single Electron Transfer Pathway

An efficient photocatalytic method was developed for the remote C5-H bond carboxylation of 8-aminoquinoline amide and sulfonamide derivatives. This methodology uses in situ generated ?CBr3 radical as a carboxylation agent with alcohol and is further extended to a variety of arenes and heteroarenes to synthesize the desired carboxylated product in moderate-to-good yields. The reaction proceeding through a single electron transfer pathway was established by a control experiment, and a butylated hydroxytoluene-trapped aryl radical cation intermediate in high-resolution mass spectrometry was identified.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

4923-87-9, Name is 5-Bromobenzothiophene, belongs to benzothiophene compound, is a common compound. Quality Control of 5-BromobenzothiopheneIn an article, once mentioned the new application about 4923-87-9.

Hole transport materials including OLED applications

The composition described here comprises at least one hole-transporting compound, wherein the hole-transporting compound comprises a core covalently bonded to at least two arylamine groups, wherein the arylamine group optionally comprises one or more intractability groups. The composition can provide good film formation and stability when coated onto hole injection layers. Solution processing of hole transporting layers of OLEDs can be achieved with the composition described here. Good mobility can be achieved.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

Related Products of 6386-80-7, 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.In a document type is Article, and a compound is mentioned, 6386-80-7, Benzo[b]thiophene-6-carbaldehyde, introducing its new discovery.

Syntheses and analytical characterizations of novel (2-aminopropyl)benzo[b]thiophene (APBT) based stimulants

Two groups of amphetamine-like drugs with psychostimulant properties that were first developed during the course of scientific studies and later emerged as new psychoactive substances (NPS) are based on the (2-aminopropyl)indole (API) and (2-aminopropyl)benzofuran (APB) structural scaffolds. However, sulfur-based analogs with a benzo[b]thiophene structure (resulting in (2-aminopropyl)benzo[b]thiophene (APBT) derivatives) have received little attention. In the present investigation, all six racemic APBT positional isomers were synthesized in an effort to understand their structure?activity relationships relative to API- and APB-based drugs. One lesson learned from the NPS phenomenon is that one cannot exclude the appearance of such substances on the market. Therefore, an in-depth analytical characterization was performed, including various single- and tandem mass spectrometry (MS) and ionization platforms coupled to gas chromatography (GC) and liquid chromatography (LC), nuclear magnetic resonance spectroscopy (NMR), and solid phase and GC condensed phase infrared spectroscopy (GC-sIR). Various derivatizations have also been explored; it was found that all six APBT isomers could be differentiated during GC analysis after derivatization with heptafluorobutyric anhydride and ethyl chloroformate (or heptafluorobutyric anhydride and acetic anhydride) under non-routine conditions. Discriminating analytical features can also be derived from NMR, GC-EI/CI- single- and tandem mass spectrometry, LC (pentafluorophenyl stationary phase), and various infrared spectroscopy approaches (including GC-sIR). Availability of detailed analytical data obtained from these novel APBT-type stimulants may be useful to researchers and scientists in cases where forensic and clinical investigations are warranted.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

6287-82-7, Name is 2,3-Dibromobenzo[b]thiophene, belongs to benzothiophene compound, is a common compound. Recommanded Product: 6287-82-7In an article, once mentioned the new application about 6287-82-7.

Synthesis, structure, and both cathodic and anodic reversible redox reactions of benzochalcogenophenes containing ferrocene units

2,3-Diferrocenylbenzo[b]thiophene and 1,3-diferrocenylbenzo[c]thiophene have been systematically and selectively synthesized from benzo[b]thiophene and phthaloyl dichloride, respectively. Characterization of the molecules was performed by physical and spectroscopic means and X-ray crystallographic analyses. The cyclic voltammograms of the novel thiophene derivatives containing ferrocene fragments showed a well-defined reversible cathodic step derived from the unusually stable thiophene radical anions and two distinct reversible anodic steps derived from ferrocenium cations separated from each other by a thiophene heterocycle. 1,3-Diferrocenylbenzo[c]selenophene was also synthesized in a similar manner for formation of 1,3-diferrocenylbenzo[c]thiophene by the use of bis(dimethylaluminum) selenide as a selenating reagent.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

Related Products of 17402-83-4, Because a catalyst decreases the height of the energy barrier, its presence increases the reaction rates of both the forward and the reverse reactions by the same amount.17402-83-4, Name is Benzo[b]thiophen-4-amine, molecular formula is C8H7NS. In a article，once mentioned of 17402-83-4

PROCESS FOR THE PREPARATION OF BREXPIPRAZOLE AND INTERMEDIATES THEREOF

The present invention relates to Brexpiprazole having a purity of about 99.5% or more by area percentage of HPLC, having total impurities not more than 0.5% relative to brexpiprazole as measured by area percentage of HPLC, and having less than 0.1% 1-(benzo[b]thiophen-4-yl)piperazine or a salt thereof relative to brexpiprazole by area percentage of HPLC. The present invention also provides a composition comprising brexpiprazole having 1-(benzo[b]thiophen-4-yl)-piperazine or a salt thereof in an amount less than about 0.1% relative to brexpiprazole by area percentage of HPLC and process for the preparation of brexpiprazole.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

Reference of 5394-13-8, 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.In a document type is Article, and a compound is mentioned, 5394-13-8, 2-Bromobenzo[b]thiophene, introducing its new discovery.

Synthesis of 5,7,12,14-tetraarylpentacenes from pentacene-5,7,12,14-tetrone and characterisation of the tetrol intermediates

Pentacene has excellent semi-conducting properties but its practical use in organic thin-film transistors (OTFTs) has some drawbacks caused by its sensitivity to oxygen and low solubility. In order to overcome these problems one can introduce substituents on the ring system. In this context, we are investigating the possibility of introduction of aryl substituents on the pentacene backbone. 5,7,12,14-Tetraaryl-substituted pentacenes are described in this article. They have been prepared from the 5,7,12,14-aryl-substituted pentacene-5?,7?,12?,14?-tetrol. We isolated all isomers of the tetrol. We also found that the 5,7,12,14-thienylpentacene-5?, 7?,12?,14?-tetrol can undergo rearrangement to afford both 5,5?,7,7?-tetrathienylpentacene-12,14-one and 5,5?,12, 12?-tetrathienylpentacene-7,14-one. Georg Thieme Verlag Stuttgart.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. SDS of cas: 63675-74-1. Introducing a new discovery about 63675-74-1, Name is 6-Methoxy-2-(4-methoxyphenyl)-1-benzothiophene

Visible light photocatalytic synthesis of benzothiophenes

The photocatalytic reaction of o-methylthio-arenediazonium salts with alkynes yields substituted benzothiophenes regioselectively through a radical annulation process. Green light irradiation of eosin Y initiates the photoredox catalysis. The scope of the reaction was investigated by using various substituted diazonium salts and different alkynes.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

Application of 10243-15-9, A catalyst don’t appear in the overall stoichiometry of the reaction it catalyzes, but it must appear in at least one of the elementary reactions in the mechanism for the catalyzed reaction. 10243-15-9, Name is 3-Bromo-2-methylbenzo[b]thiophene, molecular formula is C9H7BrS. In a Article，once mentioned of 10243-15-9

5,6,7,12-Tetrahydrodibenz[c,f][1,5]azabismocines: Highly reactive and recoverable organo-bismuth reagents for cross-coupling reactions with Aryl Bromides

Hypervalent organobismuth compounds efficiently couple with aryl bromides in the presence of [Pd(PPh3)4] catalyst. Application of this protocol to a one-pot multi-coupling reaction with bromophenylboronic esters leads to the formation of up to nine bonds in good yields (see scheme).

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

 

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. 4923-87-9, name is 5-Bromobenzothiophene. In an article，Which mentioned a new discovery about 4923-87-9, Recommanded Product: 4923-87-9.

Catalytic [2 + 2 + 2] cycloaddition of benzothiophene dioxides with alpha,omega-diynes for the synthesis of condensed polycyclic compounds

A Rh-catalyzed intermolecular [2 + 2 + 2] cycloaddition of the 2,3-double bond of benzothiophene dioxides with alpha,omega-diynes gave sulfone-containing cycloadducts in high yields. This is the first example of a catalytic [2 + 2 + 2] cycloaddition that uses the 2,3-double bond of a heterole as an ene moiety. The consecutive reaction of benzodithiophene tetraoxide with 2,3-naphthylene-tethered 1,7-diyne gave an 11-ring condensed polycyclic compound in one pot.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem