Category: benzothiophene

Application of 22913-24-2, Chemical Research Letters, May 2021. The transformation of simple hydrocarbons into more complex and valuable products via catalytic C–H bond functionalisation has revolutionised modern synthetic chemistry. In a article, 22913-24-2, molcular formula is C10H8O2S, introducing its new discovery.

In vitro and ex vivo efficacies of four series of benzo[b]thiophene-2-carboxylic acid derivatives were studied against Mycobacterium tuberculosis H37Ra (MTB). Benzo[b]thiophenes were also tested in vitro against multidrug resistant Mycobacterium tuberculosis H37Ra (MDR-MTB), and 7b was found to be highly active against A- and D-MDR-MTB/MTB (MIC ranges 2.73-22.86 mug/mL). The activity of all benzo[b]thiophenes against M. bovis BCG (BCG) was also assessed grown under aerobic and under conditions of oxygen depletion. Compounds 8c and 8g showed significant activity with MICs of 0.60 and 0.61 mug/mL against dormant BCG. The low cytotoxicity and high selectivity index data against human cancer cell lines, HeLa, Panc-1, and THP-1 indicate the potential importance of the development of benzo[b]thiophene-based 1,3-diketones and flavones as lead candidates to treat mycobacterial infections. Molecular docking studies into the active site of DprE1 (Decaprenylphosphoryl-beta-d-ribose-2?-epimerase) enzyme revealed a similar binding mode to native ligand in the crystal structure thereby helping to understand the ligand-protein interactions and establish a structural basis for inhibition of MTB. In summary, its good activity in in vitro and ex vivo model, as well as its activity against multidrug-resistant M. tuberculosis H37Ra in a potentially latent state, makes 7b an attractive drug candidate for the therapy of tuberculosis.

Balanced chemical reaction does not necessarily reveal either the individual elementary reactions by which a reaction occurs or its rate law.Application of 22913-24-2. In my other articles, you can also check out more blogs about 22913-24-2

Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Electric Literature of 19301-35-0, Research speed reading in 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. In a article, 19301-35-0, molcular formula is C8H6OS, introducing its new discovery.

A novel method for Pd-catalyzed triflination of aryl and heteroaryl triflates using NaSO2CF3 as the nucleophile is described. The combination of Pd2(dba)3 and RockPhos formed the most effective catalyst. A broad range of functional groups and heteroaromatic compounds were tolerated under the neutral reaction conditions. The order of reactivity ArOTf ? ArCl ? ArBr is consistent with transmetalation being a slow step of the reaction.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Chemical Research Letters, May 2021. Catalysts allow a reaction to proceed via a pathway that has a lower activation energy than the uncatalyzed reaction.Safety of 2-(5-Bromo-2-fluorobenzyl)benzo[b]thiophene, such as the rate of change in the concentration of reactants or products with time.In a article, mentioned the application of 1034305-17-3, Name is 2-(5-Bromo-2-fluorobenzyl)benzo[b]thiophene, molecular formula is C15H10BrFS

A concise and practical stereoselective synthesis of ipragliflozin L-proline was presented starting from 2-[(5-iodo-2-fluorophenyl)methyl]-1-benzothiophene and 2,3,4,6-tetra-O-pivaloyl-alpha-D-glucopyranosyl bromide without catalyst via iodine?lithium?zinc exchange. The overall yield was 52% in three steps and the product purity was excellent. Two key diastereomers were prepared with efficient and direct access to the alpha-C-arylglucoside.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Electric Literature of 5394-13-8, Research speed reading in 2021. The dynamic chemical diversity of the numerous elements, ions and molecules that constitute the basis of life provides wide challenges and opportunities for research. In a article, 5394-13-8, molcular formula is C8H5BrS, introducing its new discovery.

An efficient tandem elimination-cyclization-desulfitative arylation of 2-(gem-dibromovinyl)phenols(thiophenols) with sodium arylsulfinates has been developed. In the presence of TBAF-PdCl2-Cu(OAc)2-NEt 3, the reactions generated 2-arylbenzofurans(thiophenes) with good yields in one-pot under ligand-free conditions. The Royal Society of Chemistry 2013.

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. Electric Literature of 5394-13-8

Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Reference of 10243-15-9, Chemical Research Letters, May 2021. This type of reactivity has quickly become one of the cornerstones of modern catalysis . In a article, 10243-15-9, molcular formula is C9H7BrS, introducing its new discovery.

Herein, we report a new transition-metal-free robust and cost-effective method for synthesis of 1,2-disubstituted indoles from easily available unactivated (i.e. without EWG, PPh3 or SiR3 groups) tertiary amides. Scope of synthetic applicability of the presented protocol was shown on 23 examples of 1,2-disubstituted indoles with different substitution patterns obtained in good to excellent yields. The reported method turned out to be especially effective for synthesis of N-arylated 2-CF3-indoles. Moreover, this approach can be performed in a one-pot two-step manner directly from commercially available secondary amines. Mechanistic studies showed that acyl transfer might be an important step in the course of the reaction. Viability of the presented approach for benzofurans and benzothiophenes synthesis was also discussed.

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Reference：
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

New Advances in Chemical Research in 2021. Chemistry is a science major with cience and engineering. The main research directions are chemical synthesis, new energy materials, preparation and modification of special coatings. Application In Synthesis of Benzo[b]thiophen-5-ol. Introducing a new discovery about 19301-35-0, Name is Benzo[b]thiophen-5-ol

gamma-Radiolysis of aqueous benzothiophene solutions saturated with N2O has been studied.In the absence of other reagents, the only products detected are 2- and 3-hydroxybenzothiophene and their corresponding lactonic and ketonic tautomers and a small amount of dimeric species.In the presence of potassium hexacyanoferrate or sodium hydroxide, however, products attributable to hydroxylation at all six available carbon sites are detected and dimer formation is reduced.Analysis of the experimental data suggests that both benzothiophene and its hydroxylation products are efficient scavengers for the radiation-produced OH radicals and that the initial yield of hydroxylation products is equal to that of hydroxyl radicals.Consistent with the electrophilic characteristics of the OH radical, k(OH+C8H6S):k(OH+C8H5SOH)=0.5+/-0.1.All six available carbon sites are capable of forming OH adducts, but the radicals formed by addition to the 4, 5, 6, and 7 positions tend to revert to the original compound or its ion in a neutral or acidic medium.In the case of the adducts formed by addition to the thiophene ring, on the other hand, the 3 position is seen to be favored, possibly as the result of the preservation of the aromatic benzene resonance structure.