Category: benzothiophene

Synthetic Route of 6287-82-7, The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.6287-82-7, Name is 2,3-Dibromobenzo[b]thiophene, molecular formula is C8H4Br2S. In a Article£¬once mentioned of 6287-82-7

10. The Diyne Reaction of 3,3?-Bis(phenylethynyl)-2,2?-bithiophene Derivatives via Rhodium Complexes: A Novel Approach to Condensed Benzo[2,1-b:3,4b’]dithiophenes

The syntheses of benzo-fused benzo[2,1-b:3,4-b’]dithiophenes 1 and benzo[2,1-b:3,4-b’:5,6-c?]trithiophenes 2 are described. The treatment of easily available 3,3?-bis(phenylethynyl)-2,2?-bithiophene derivatives 5a and 6 (via PdII-catalyzed alkynylation of the corresponding 3,3?-dibromo-2,2?-bithiophenes; see Scheme 1) with chlorotris(triphenylphosphine)rhodium(I) yields the corresponding cyclic rhodium complexes 7 (Scheme 2) which smoothly react with acetylenes and sulfur to give 1 and 2 in good yields (Schemes 3-5).

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Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Synthetic Route of 4923-87-9, Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. 4923-87-9, Name is 5-Bromobenzothiophene,introducing its new discovery.

Simple Nickel Salts for the Amination of (Hetero)aryl Bromides and Iodides with Lithium Bis(trimethylsilyl)amide

Recent developments in the chemistry of C-N bond formation and the synthesis of anilines have allowed for the use of first-row transition metals to catalyze these transformations. Much of the progress in this area has been driven by comprehensive screening for privileged/tailored ligands, which can be costly and not readily available in a research laboratory setting. In this communication we report a protocol in which simple nickel salts catalyze the C-N cross-coupling reaction between (hetero)aryl bromides and iodides with lithium bis(trimethylsilyl)amide without the need for any additive ligand. This method is amenable to low nickel catalyst loadings (1%) as well as gram-scale reactions. Because of the good functional group tolerance and compatibility with heterocyclic moieties, this method is useful for academic laboratory settings where access to tailored ligands and noble-metal catalysts could be challenging.

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Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Electric Literature of 4923-87-9, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 4923-87-9, molcular formula is C8H5BrS, introducing its new discovery.

Ag(I)-C-H Activation Enables Near-Room-Temperature Direct alpha-Arylation of Benzo[ b]thiophenes

The first example of near-room-temperature alpha-arylation of benzo[b]thiophenes is reported. The discovery rests on the observation of a switch in alpha-/beta-regioselectivity at different loadings of Pd2(dba)3¡¤CHCl3 in the coupling between benzo[b]thiophene and 4-iodotoluene. We show that this unprecedented regioselectivity switch is driven by a Ag(I)-mediated C-H activation at the alpha-C-H position, which becomes the dominant mode of reactivity at low concentrations of Pd. Competition experiments, kinetic studies, KIE, and D/H scrambling experiments have been carried out supporting this mechanism.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 4923-87-9 is helpful to your research. Electric Literature of 4923-87-9

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Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Synthetic Route of 63675-74-1, 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. 63675-74-1, Name is 6-Methoxy-2-(4-methoxyphenyl)-1-benzothiophene, molecular formula is C16H14O2S. In a Patent£¬once mentioned of 63675-74-1

A process for preparing benzo[b]thiophene derivatives

The present invention relates in general to the field of organic chemistry, and in particular to the preparation of benzo[b]thiophene derivatives. These benzo[b]thiophene derivatives are useful as intermediates in the synthesis of pharmaceutically active agents such as raloxifene or derivatives thereof.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Synthetic Route of 63675-74-1. In my other articles, you can also check out more blogs about 63675-74-1

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Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

One of the major reasons for studying chemical kinetics is to use measurements of the macroscopic properties of a system, Recommanded Product: 5-Aminobenzothiophene, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 20532-28-9, Name is 5-Aminobenzothiophene, molecular formula is C8H7NS

Synthesis of a thiophene-fused isoindigo derivative: A potential building block for organic semiconductors

Thiophene-fused isoindigo (TII) was synthesized from thieno[2,3-f]indol- 6(7H)-one in a one-pot reaction, in which the alkylation, oxidation and condensation were finished in one step. It exhibits better intramolecular charge transfer properties and higher reductive potential compared with isoindigo(II), as evidenced by its optical and electrochemical properties, which shows that it might be used as a building block for n-type or ambipolar OFET materials.

Sometimes chemists are able to propose two or more mechanisms that are consistent with the available data. Recommanded Product: 5-Aminobenzothiophene, If a proposed mechanism predicts the wrong experimental rate law, however, the mechanism must be incorrect.Welcome to check out more blogs about 20532-28-9, in my other articles.

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Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Related Products of 5394-13-8, Catalysts function by providing an alternate reaction mechanism that has a lower activation energy than would be found in the absence of the catalyst. In some cases, the catalyzed mechanism may include additional steps.In a article, 5394-13-8, molcular formula is C8H5BrS, introducing its new discovery.

Palladium-catalyzed aerobic oxidative double allylic C-H oxygenation of alkenes: A novel and straightforward route to alpha,beta-unsaturated esters

A mild tandem oxidative functionalization of allyl aromatic hydrocarbons was accomplished using the catalytic system of Pd(OAc)2/DMA under 1 atm O2. The green twofold C-O bond formation involving double allylic C-H oxygenation unlocks opportunities for markedly different synthetic strategies. Moreover, the reaction affords aryl alpha,beta-unsaturated esters directly from readily available terminal olefins in moderate to good yields with excellent chemo- and stereoselectivities.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 5394-13-8 is helpful to your research. Related Products of 5394-13-8

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Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Chemistry is traditionally divided into organic and inorganic chemistry. name: 5-Aminobenzothiophene, The former is the study of compounds containing at least one carbon-hydrogen bonds.In a patent£¬Which mentioned a new discovery about 20532-28-9

Synthesis and molecular modeling of new 1-aryl-3-[4-arylpiperazin-1-yl]-1-propane derivatives with high affinity at the serotonin transporter and at 5-HT1A receptors

It has been proposed that 5-HT1A receptor antagonists augment the antidepressant efficacy of selective serotonin (5-HT) reuptake inhibitors. In a search toward new and efficient antidepressants, 1-(aryl)-3-[4-arylpiperazin-1-yl]-1-propane molecular hybrids were designed, synthesized, and evaluated for 5-HT reuptake inhibition and 5-HT1A receptor affinity. The design was based in coupling structural moieties related to inhibition of serotonin reuptake, such as benzo[b]-thiophene derivatives to arylpiperazines, typical 5-HT1A receptor ligands. In binding studies, several compounds showed affinity at the 5-HT transporter and at 5-HT1A receptors. Molecular modeling studies predicted the pharmacophore elements required for high affinity binding and the features that enable to discriminate between agonist, partial agonist, or antagonist action at 5-HT1A receptors and 5-HT transporter inhibition. Solvent interactions in desolvation prior to the binding step along with enthalpy and enthropy compensations might be responsible to explain agonist, partial agonist, and antagonist character. Hydrogen-bonding capability seems to be important to break hydrogen interhelical hydrogen bonds or alternatively to form other bonds upon ligand binding. Partial agonists and antagonists are unable to do this as the full agonist, which interacts closely by long-range forces or directly. The compounds showing the higher affinity at both the 5-HT transporter (Ki < 50 nM) and the 5-HT1A receptors (Ki < 20 nM) were further explored for their ability to stimulate [35S]GTPgammaS binding or to antagonize 8-hydroxy-2-di-n-propylamino-tetralin (8-OH-DPAT)-stimulated [35]GTPgammaS binding to rat hippocampal membranes, an index of agonist/antagonist action at 5-HT1A receptors, respectively. Compound 8g exhibited agonist activity (EC50 = 30 nM) in this assay, whereas compounds 7g and 8h,i behaved as weak partial agonists and 7h-j and 8j,1 antagonized the R(+)-8-OH-DPAT-stimulated GTPgammaS binding. Functional characterization was performed by measuring the antagonism to 8-OH-DPAT-induced hypothermia in mice. If you are interested in 20532-28-9, you can contact me at any time and look forward to more communication. name: 5-Aminobenzothiophene

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Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem