Month: January 2023

V-shaped thiophene-based oligomers with improved electroluminescence properties was written by Barbarella, Giovanna;Favaretto, Laura;Zanelli, Alberto;Gigli, Giuseppe;Mazzeo, Marco;Anni, Marco;Bongini, Alessandro. And the article was included in Advanced Functional Materials in 2005.SDS of cas: 6287-82-7 This article mentions the following:

The synthesis via the Stille coupling of a new family of oligomers derived from benzo[b]thiophene is reported. Owing to their branched mol. structure lacking any symmetry element, these compounds display a low tendency to crystallization and better film-forming properties than their linear counterparts. Spin-coated films show photoluminescence efficiencies up to 50%. Light-emitting diodes with spin-coated films as the active layers display markedly improved performance with respect to similar devices based on linear oligothiophenes, with luminance values up to more than 10 000 cd m^-2. Semiempirical PM3 and ZINDO/S calculations provide insight into the mol. geometries and electron distribution of the frontier orbitals of the new compounds Cyclic voltammetry data indicates that the transformation of the thienyl sulfur of benzo[b]thiophene to the corresponding thienyl-S,S-dioxide leads an increase in electron affinity by 0.5-0.7 V, analogous to that of the corresponding linear oligomers. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7SDS of cas: 6287-82-7).

2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The electrophilic substitution of benzothiophene systems is much less regioselective than that of indoles. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, sertaconazole, and also BTCP.SDS of cas: 6287-82-7

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Well-Defined Palladium N-Heterocyclic Carbene Complexes: Direct C-H Bond Arylation of Heteroarenes was written by Kumar, Anuj;Kumar, Manoj;Verma, Akhilesh K.. And the article was included in Journal of Organic Chemistry in 2020.Recommanded Product: 90560-10-4 This article mentions the following:

A series of palladium N-heterocyclic carbene (NHC) complexes of type trans-{(NHC)PdCl₂L} (L = C₅H₅N, 3-ClC₅H₄N, and PPh₃) have been developed as efficient precatalysts for direct C-H bond arylation of various heteroarenes. In particular, an in situ generated new NHC ligand derived from {1,3-bis(2,6-diethylphenyl)acenaphtho[1,2-d]imidazolium} chloride is used for the stabilization of the palladium metal center. Among the screened palladium precatalysts, the most active PEPPSI themed complex was successfully employed toward direct C-H bond arylation of various heteroarenes and aryl bromides. A range of functional groups on aryl bromides as well as on heteroarenes sustained throughout the standard reaction conditions for easy access of various arylated heterocyclic compounds Significantly, the utility of the protocol was demonstrated by the effective synthesis of a precursor of raloxifene, a selective estrogen receptor modulator. In the experiment, the researchers used many compounds, for example, 6-Methoxybenzo[b]thiophene (cas: 90560-10-4Recommanded Product: 90560-10-4).

6-Methoxybenzo[b]thiophene (cas: 90560-10-4) belongs to benzothiophene derivatives. Benzothiophene finds use in research as a starting material for the synthesis of larger, usually bioactive structures. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, sertaconazole, and also BTCP.Recommanded Product: 90560-10-4

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Synthesis, properties and optical recording of a novel unsymmetrical photochromic diarylethene was written by Wang, Liqin;Pu, Shouzhi;Yan, Liushui;Cui, Shiqiang. And the article was included in Advanced Materials Research (Durnten-Zurich, Switzerland) in 2011.SDS of cas: 10243-15-9 This article mentions the following:

A new unsym. photochromic diarylethene, 1-(2-methyl-3-benzothienyl)-2-(2-butyl-5-methylol-3-thienyl)perfluorocyclopentene (1a), was synthesized and its photochromism and fluorescence were studied in in solution and in poly(Me methacrylate) (PMMA) amorphous films. Polarization multiplexed image recording was carried out using closed-form of 1a in PMMA film and linearly polarized 633 nm laser diode for recording/readout. The diarylethene can be potentially used as holog. optical recording medium. In the experiment, the researchers used many compounds, for example, 3-Bromo-2-methylbenzo[b]thiophene (cas: 10243-15-9SDS of cas: 10243-15-9).

3-Bromo-2-methylbenzo[b]thiophene (cas: 10243-15-9) belongs to benzothiophene derivatives. Benzothiophene is used as starting material for the synthesis of bioactive molecules. The core structure is a part of various pharmaceutical substances and natural products. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.SDS of cas: 10243-15-9

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

A Transition-Metal-Free One-Pot Cascade Process for Transformation of Primary Alcohols (RCH₂OH) to Nitriles (RCN) Mediated by SO₂F₂ was written by Jiang, Ying;Sun, Bing;Fang, Wan-Yin;Qin, Hua-Li. And the article was included in European Journal of Organic Chemistry in 2019.Computed Properties of C9H5NS This article mentions the following:

Primary (benzylic) alcs. underwent transition-metal-free one-pot cascade process with SO₂F₂, K₂CO₃, and NH₂OH·HCl in DMSO to yield nitriles without introducing an addnl. carbon atom. In the experiment, the researchers used many compounds, for example, Benzo[b]thiophene-2-carbonitrile (cas: 55219-11-9Computed Properties of C9H5NS).

Benzo[b]thiophene-2-carbonitrile (cas: 55219-11-9) belongs to benzothiophene derivatives. Benzothiophene scaffolds are of great importance due to its increased presence in bioactive molecules. It is found within the chemical structures of pharmaceutical drugs such as zileuton, raloxifene, and sertaconazole, and also BTCP.Computed Properties of C9H5NS

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

5-Substituted Benzothiophenes: Synthesis, Mechanism, and Kinetic Studies was written by Cerminara, Iole;D’Alessio, Luciano;D’Auria, Maurizio;Funicello, Maria;Guarnaccio, Ambra. And the article was included in Helvetica Chimica Acta in 2016.Name: 6-Methoxybenzo[b]thiophene This article mentions the following:

The kinetics of the reaction of 4-methoxythiophenoxyacetaldehyde di-Et acetal, 4-nitrothiophenoxyacetaldehyde di-Et acetal, and 3-methoxythiophenoxyacetaldehyde di-Et acetal in polyphosphoric acid was explained. The kinetic behavior was explained from aided simulation and from d. functional theory calculations showing a different pathway for 4-nitrothiophenoxyacetaldehyde di-Et acetal and for 4-methoxythiophenoxyacetaldehyde di-Et acetal. In this last case, a very fast competing reaction to the dimerization product was observed In the experiment, the researchers used many compounds, for example, 6-Methoxybenzo[b]thiophene (cas: 90560-10-4Name: 6-Methoxybenzo[b]thiophene).

6-Methoxybenzo[b]thiophene (cas: 90560-10-4) belongs to benzothiophene derivatives. Functionalized benzothiophenes are important constructs found in molecules with wide ranging biological activity and in organic materials. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, and sertaconazole, and also BTCP.Name: 6-Methoxybenzo[b]thiophene

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Mechanistic Switch in Dual Gold Catalysis of Diynes: C(sp³)-H Activation through Bifurcation-Vinylidene versus Carbene Pathways was written by Hansmann, Max M.;Rudolph, Matthias;Rominger, Frank;Hashmi, A. Stephen K.. And the article was included in Angewandte Chemie, International Edition in 2013.Recommanded Product: 2,3-Dibromobenzo[b]thiophene This article mentions the following:

Gold-catalyzed cycloisomerization of 2,3-diethynylthiophenes with terminal CC bond to give indanothiophenes and fluorenothiophenes. E.g., reaction of 2-ethynyl-3-(oct-1-yn-1-yl)thiophene and 5 mol% IPrAuNTf₂ (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, Tf = trifluoromethylsulfonyl) in dry toluene at 70° gave 7-propyl-6,7-dihydro-5H-indeno[5,6-b]thiophene in 54% yield. Variation of the backbone of the diyne system opens up a pathway for the intramol. C(SP³)-H activation event. Based on theor. work it is postulated that a switch in selectivity along a bifurcation pathway, for the first time leading to products through σ,π dual activation and a 6-endo diyne cyclization. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Recommanded Product: 2,3-Dibromobenzo[b]thiophene).

2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophene is a fused ring compound of thiophene ring and benzene ring, which is an important class of heterocycles with advantageous structures. The different substitution patterns in these heterocycles offer new opportunities for drug discovery and other applications in materials science.Recommanded Product: 2,3-Dibromobenzo[b]thiophene

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Supramolecular Assembly of Phosphole Oxide Based Alkynylplatinum(II) 2,6-Bis(N-alkylbenzimidazol-2′-yl)pyridine Complexes-An Interplay of Hydrophobicity and Aromatic π-Surfaces was written by Cheung, Andy Fu-Fai;Hong, Eugene Yau-Hin;Yam, Vivian Wing-Wah. And the article was included in Chemistry – A European Journal in 2018.COA of Formula: C8H4Br2S This article mentions the following:

A new class of phosphole oxide based alkynylplatinum(II) 2,6-bis(N-alkylbenzimidazol-2′-yl)pyridine (bzimpy) complexes were synthesized and characterized. Their self-assembly was driven by hydrophobic-hydrophobic and π-π stacking interactions. The self-assembly properties were also investigated by UV/Vis absorption spectroscopy, which revealed that the alkyl-chain length of the bzimpy moiety and the π-surface area of the alkynyl ligand have significant influence on the overall self-assembly process. The alkyl-chain length also affected the morphol. structures of the aggregates, which were studied by transmission electron microscopy and SEM. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7COA of Formula: C8H4Br2S).

2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophene is relatively a stable molecule. The electrophilic substitution of benzothiophene systems is much less regioselective than that of indoles. It is found within the chemical structures of pharmaceutical drugs such as zileuton, raloxifene, and sertaconazole, and also BTCP.COA of Formula: C8H4Br2S

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Aminobenzoannulated hetero- and carbocycles from 2-azahepta-2,4-dien-6-ynyllithium compounds: scope and limitation of a novel benzoannulation reaction was written by Lyaskovskyy, Volodymyr;Froehlich, Roland;Wuerthwein, Ernst-Ulrich. And the article was included in Synthesis in 2007.Recommanded Product: 6287-82-7 This article mentions the following:

Deprotonation of the N-benzylhetarylmethanimines, e.g. I (R¹ = n-Bu, Ph), at -78 °C with subsequent warming to room temperature over 16 h and treatment with electrophiles furnished polysubstituted aminobenzoannulated heterocycles, e.g. II (R² = H, Me), in good to excellent yields. In a similar fashion, the deprotonation of the N-allyl-2-(alk-1-ynyl)phenylmethanimines led to 1-amino-2-vinylnaphthalenes in moderate yields. The reaction of N-[(trimethylsilyl)methyl] imine of o-(phenylethynyl)benzaldehyde afforded naphthalen-1-amine unsubstituted at the ortho-position after removal of the trimethylsilyl group. The deprotonation of N-benzyl imine of o-(trimethylsilylethynyl)benzaldehyde gave none of expected amines, but the substituted imine, N-benzylidene-α-methyl-2-(trimethylsilyl)benzylamine, whose structure was identified using 2D NMR spectroscopy. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Recommanded Product: 6287-82-7).

2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Functionalized benzothiophenes are important constructs found in molecules with wide ranging biological activity and in organic materials. It is found within the chemical structures of pharmaceutical drugs such as raloxifene, zileuton, and sertaconazole, and also BTCP.Recommanded Product: 6287-82-7

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

A convenient preparation of aryl trifluoromethyl ketones was written by DiMenna, William S.. And the article was included in Tetrahedron Letters in 1980.Category: benzothiophene This article mentions the following:

Seven thiophenyl, benzothiophenyl, and benzofuranyl trifluoromethyl ketones were prepared (40-75%) by reaction of CF₃CONMe₂ with aryllithium reagents, obtained by halogen metal exchange or direct metalation. E.g., 2-(trifluoroacetyl)benzo[b]thiophene was obtained (75%) by sequential treatment of benzo[b]thiophene with BuLi (Et₂O, 20°, reflux) and CF₃CONMe₂ (-85 to -65°, 1 h, 0°), followed by hydrolysis (H₂O, 3N HCl). In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Category: benzothiophene).

2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Benzothiophene is a fused ring compound of thiophene ring and benzene ring, which is an important class of heterocycles with advantageous structures. It has been used as a raw material for the synthesis of biologically active structures and is found in pharmaceuticals such as leukotriene synthesis inhibitors and antifungals, as well as in many natural products.Category: benzothiophene

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem

Photoinvertible Chiral Liquid Crystal that Affords Helicity-Controlled Aromatic Conjugated Polymers was written by Yoshida, Satoru;Morikawa, Santa;Ueda, Kenta;Hidaka, Masatomo;Kaneko, Kosuke;Kaneko, Kimiyoshi;Hanasaki, Tomonori;Akagi, Kazuo. And the article was included in Advanced Optical Materials in 2020.Category: benzothiophene This article mentions the following:

Photoinvertible chiral compounds are synthesized by linking a photoresponsive bisbenzothienylethene moiety with an axially chiral binaphthyl moiety and used as chiral dopants to prepare a photoinvertible chiral nematic liquid crystal (N*-LC) field. Subsequently, electrochem. polymerizations of ethylenedioxythiophene (EDOT) in the N*-LC field to synthesize helical poly(ethylenedioxythiophene)s (H-PEDOTs) are achieved. The H-PEDOTs show not only spiral morphologies resembling the fingerprinted texture of N*-LC in polarizing optical microscope but also bisignate Cotton effects in CD spectra, indicating the formation of a helically π-stacked structure in terms of the main chains of H-PEDOT. In addition, the signs of the bisignate Cotton effect are strictly determined by the helicity of the N*-LC. The present N*-LC is the first reaction field exhibiting photoinvertible chirality with extremely high fatigue resistance and serves as an asym. medium for electrochem. polymerization, leading to dynamic helicity control of conjugated polymers. In the experiment, the researchers used many compounds, for example, 2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7Category: benzothiophene).

2,3-Dibromobenzo[b]thiophene (cas: 6287-82-7) belongs to benzothiophene derivatives. Functionalized benzothiophenes are important constructs found in molecules with wide ranging biological activity and in organic materials. It is also used in the manufacturing of dyes such as thioindigo.Category: benzothiophene

Referemce:
Benzothiophene – Wikipedia,
Benzothiophene | C8H6S – PubChem