Category: 130-03-0

Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments. 130-03-0. Introducing a new discovery about 130-03-0, Name is Benzo[b]thiophen-3(2H)-one

An important 13C NMR shielding effect on carbons bearing a heavy chalcogen is demonstrated.This effect is parallel to that induced by iodine, but to a lesser extent.For acyclic compounds and for partially saturated heterocycles, there is an excellent linear correlation between the 13C chemical shifts of carbons bearing a chalcogen and carbons bearing a halogen atom in the corresponding compound.The linearity of the relationship is less satisfactory with heteroaromatic compounds.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. Recommanded Product: Benzo[b]thiophen-3(2H)-one, In an article, mentioned the application of 130-03-0, Name is Benzo[b]thiophen-3(2H)-one, molecular formula is C8H6OS

3-Oxo-2,3-dihydrobenzo[b]furans, -thiophenes and -selenophenes 1a-c afforded the bromo-aldehydes 2 under Vilsmeier-Haack-Arnold conditions. Palladium-catalysed aryl-aryl coupling of 2 with o-formyl-phenylboronic acid allowed the formation of dialdehydes 3 which underwent McMurry cyclisation or pinacol condensation to yield polycyclic aromatic derivatives 4 or the dihydroxylated compounds 5.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Recommanded Product: Benzo[b]thiophen-3(2H)-one, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 130-03-0, in my other articles.

Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Reference of 130-03-0, 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, 130-03-0, Benzo[b]thiophen-3(2H)-one, introducing its new discovery.

The kinetics of the hydronium-ion catalysed hydrolysis of the following heterocyclic methyl enol ethers have been measured: 3-methoxybenzofuran, 3-methoxybenzothiophene, 3-methoxyindole, 3-methoxy-1-methylindole, 3-methoxyfuran, 3-methoxythiophene, and 2-methoxythiophene.On the basis of the solvent isotope effect kH/kD = 3.08 and the failure to detect deuterium exchange when the solvent was CD3CN:D2O (9:1 v/v) it was concluded that the rate limiting step in the hydrolysis of 3-methoxybenzofuran is C-protonation.The effect of the ring-oxygen atom was measured by comparing the rate of hydrolysis of 3-methoxybenzofuran with that of 3-methoxyindene which occurs 2100 times faster.In contrast to the behaviour of 3-methoxybenzofuran the isotope effects, kH/kD, for the hydrolyses of 3-methoxyfuran, 3-methoxythiophene, 3-methoxyindole, 3-methoxy-1-methylindole and 2-methoxythiophene are ca 0.4 – 0.5 and deuterium exchange is much faster than hydrolysis when the solvent is CD3CN:D2O (9:1 v/v).It was therefore concluded that with these compound C-protonation is rapid and reversible and that slow step is attack by water on the intermediate cation.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Reference of 130-03-0. In my other articles, you can also check out more blogs about 130-03-0

Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Chemo-enzymatic cascade processes are invaluable due to their ability to rapidly construct high-value products from available feedstock chemicals in a one-pot relay manner. Quality Control of Benzo[b]thiophen-3(2H)-one, In an article, mentioned the application of 130-03-0, Name is Benzo[b]thiophen-3(2H)-one, molecular formula is C8H6OS

The condensation of ethyl sarcosinate on 2- or 3-halogeno 3- or 2-formyl<1>benzofuran, benzothiophene or benzoselenophene, and on the related 2H-<1>-3-benzoheterocyclanones is described.In the last instances the resulting compounds were formylated in the 2-position with subsequent cyclodehydration.After hydrolysis and decarboxylation, the 1-methyl<1>benzothieno-, benzoseleno<2,3-b>pyrroles and the 1-methyl<1>benzofuro, benzothieno- and benzoseleno<3,2-b>pyrroles were thus obtained.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Application of 130-03-0, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.130-03-0, Name is Benzo[b]thiophen-3(2H)-one, molecular formula is C8H6OS. In a Article，once mentioned of 130-03-0

The O-deuterated enolic tautomers 3-deuteroxybenzofuran, 3-deuteroxybenzothiophene, 3-deuteroxyindole, 3-deuteroxy-1-methylindole, 3-deuteroxyfuran, 3-deuteroxythiophene, 2-deuteroxybenzothiophene, and 2-deuteroxythiophene have been generated in solution in mixtures of CD3COCD3, CD3CN, or CD3SOCD3 with D2O by hydrolysis of their trimethylsilyl derivatives in the presence of DCl (1E-3 – 1E-4 M) and characterized by 1H NMR spectroscopy.Solutions of 3-hydroxypyrrole and of 3-hydroxy-1-methylpyrrole were obtained by methanolysis of their trimethylsilyl derivatives,evaporation of the methanol, and immediate dissolution in DMSO-d6.The carbocyclic analogues of the bicyclic heterocyclic enols 3-deuteroxyindene and 2-deuteroxyindene were also generated in solution.Attempts to prepare solutions of 2-deuteroxyfuran, 2-deuteroxypyrrole, and 2-deuteroxy-1-methylpyrrole were unsuccessful.The kinetics of ketonization of the OH forms of these enols have been investigated in water or aqueous acetonitrile solution.The equilibrium constants for the keto-enol tautomerism were also determined either by direct measurement when sufficient enol was present at equilibrium or as the ratio of the rate constant for enolization of the keto form to that for ketonization of the enol form, the former being determined by the iodine-trapping technique.The effect of solvent on the equilibrium constants was also studied.Sufficient data were available for the equilibrium between 3-hydroxyindole and 3-ketoindole for them to be analyzed by the four-parameter equation of Mills and Beak to yield an a value of 2.4 and a b value of -3.0.The pKas of the bicyclic enols were measured. 3-Hydroxybenzofuran and3-hydroxybenzothiophene are stronger acids than 3-hydroxyindole and 3-hydroxy-1-methylindole.The ketonization reactions are general acid and general base catalyzed and their mechanisms are discussed.

A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 130-03-0

Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem