Category: 3480-11-03 00:00:00

Takahashi, Rikuro; Seo, Tamae; Kubota, Koji; Ito, Hajime published the artcile< Palladium-Catalyzed Solid-State Polyfluoroarylation of Aryl Halides Using Mechanochemistry>, Application of C8H5BrS2, the main research area is polyfluorinated arylboronic acid pinacol ester Suzuki Miyaura coupling palladium.

The Suzuki-Miyaura cross-coupling between polyfluorinated arylboron nucleophiles and aryl halides enables the efficient construction of polyfluorinated structural motifs frequently found in organic materials and catalysts. A key challenge associated with this transformation involves the slow transmetalation with weakly nucleophilic polyfluorinated organoboron reagents, which often reduces the yield of the coupling products. Here, authors show that solid-state high-temperature ball-milling conditions facilitate a palladium-catalyzed cross-coupling with polyfluorinated arylboronic acids and pinacol esters employing a simple catalytic system in the absence of any stoichiometric additives. This reaction exhibits a broad substrate scope and can be carried out in air, and the use of large amounts of dry and degassed organic solvents is not required. The successful cross-coupling of weakly nucleophilic polyfluorinated organoboron reagents was ascribed to the extremely high concentrations of the substrates and the catalyst under solid-state conditions.

ACS Catalysis published new progress about Arylation (polyfluoro-). 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Application of C8H5BrS2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Albano, Gianluigi; Aronica, Laura Antonella; Minotto, Alessandro; Cacialli, Franco; Di Bari, Lorenzo published the artcile< Chiral Oligothiophenes with Remarkable Circularly Polarized Luminescence and Electroluminescence in Thin Films>, Synthetic Route of 3480-11-3, the main research area is chiral oligothiophene remarkable circularly polarized luminescence electroluminescence thin film; CP-OLED; circularly polarized electroluminescence; circularly polarized luminescence; oligothiophenes; thin films.

This work reports the first observation of circularly polarized electroluminescence (CPEL) in thin films of self-organized oligothiophenes. Four new 1,4-phenylene and 9H-carbazole-based oligothiophenes were ad hoc designed to ensure efficient spontaneous formation of chiral supramol. order. They were easily synthesized and their chiroptical properties in thin films were measured. Circularly polarized luminescence (CPL) spectra revealed glum in the order of 10-2 on a wide wavelengths range, originating from their self-organized chiral supramol. organization. These mols. have reasonable properties as organic semiconductors and for this reason they can constitute the active layer of circularly-polarized organic light-emitting diodes (CP-OLEDs). Thus, we could investigate directly their electroluminescence (EL) and CPEL, without resorting to blends, but rather in a simple multilayer device with basic architecture. This is the first example of a CP-OLED with active layer made only of a small organic compound

Chemistry – A European Journal published new progress about Chirality. 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Synthetic Route of 3480-11-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Nagaki, Aiichiro; Jiang, Yiyuan; Yamashita, Hiroki; Takabayashi, Naoshi; Takahashi, Yusuke; Yoshida, Jun-ichi published the artcile< Monolithiation of 5,5'-Dibromo-2,2'-bithiophene Using Flow Microreactors: Mechanistic Implications and Synthetic Applications>, Electric Literature of 3480-11-3, the main research area is monolithiation dibromo bithiophene flow microreactor methyllithium.

The lithiation of 5,5′-dibromo-2,2′-bithiophene with one equivalent of an alkyllithium such as n-BuLi or s-BuLi was studied by varying the residence time in flow microreactors. With a short residence time, the product 2,2′-bithiophene derived from dilithiation was obtained preferentially and a significant amount of the starting material 5,5′-dibromo-2,2′-bithiophene remained unchanged. An increase in the residence time caused a higher yield of the product 5-bromo-2,2′-bithiophene derived from monolithiation with expense in the yields of 2,2′-bithiophene and 5,5′-dibromo-2,2′-bithiophene. The lithiation using MeLi gave the product 5-bromo-2,2′-bithiophene preferentially even with a very short residence time.

Chemical Engineering & Technology published new progress about Aryl bromides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Electric Literature of 3480-11-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Politi, Flavio Augusto Sanches; Bueno, Renata Vieira; Zeoly, Lucas Andre; Fantatto, Rafaela Regina; Eloy, Josimar de Oliveira; Chorilli, Marlus; Coelho, Fernando; Guido, Rafael Victorio Carvalho; Chagas, Ana Carolina de Souza; Furlan, Maysa published the artcile< Anthelmintic activity of a nanoformulation based on thiophenes identified in Tagetes patula L. (Asteraceae) against the small ruminant nematode Haemonchus contortus>, Product Details of C8H5BrS2, the main research area is Tagetes patula Haemonchus contortus nematode anthelmintic activity nanoformulation thiophene; Docking; French marigold; Gastrointestinal nematode; UNC-49 receptor; in vitro; in vivo.

The synthesis of thiophenic compounds, previously identified in Tagetes patula, revealed that 4-(5′-(hydroxymethyl)-[2,2′-bithiophene]-5-yl)but-3-yn-1-ol, or simply Thio1, has a pronounced in vitro anthelmintic effect against Haemonchus contortus, showing 100% efficacy in the egg hatch and larval development tests presenting EC50 = 0.1731 mg.mL-1 and EC50 = 0.3243 mg.mL-1, resp. So, this compound was selected to preparation of a nanostructured formulation to be orally administered to Santa Ines sheep. In general, from the fecal egg count reduction test (FECRT), it was observed that the product kept the parasitic load in the digestive tract of the hosts stable, with eggs per g of faeces (EPG) counts having a mean value < 3,000 (EPGmean = 2167.1, efficacy = 36,45%), thus protecting the animals from health risks caused by a massive nematode infestation. To better understand the mode of action of this thiophene derivative, in silico mol. modeling studies were carried out with the glutamate-activated chloride channel (GluCl), a well-known mol. target of anthelmintic compounds Based on the affinity score (GlideScore = -5.7 kcal.mol-1) and the proposed binding mode, Thio1 could be classified as a potential GluCl ligand, justifying the promising results observed in the anthelmintic assays. Acta Tropica published new progress about Anthelmintics. 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Product Details of C8H5BrS2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Perumal, Sakthivel; Karuppannan, Sekar; Gandhi, Sivaraman; Subramanian, Singaravadivel; Govindasamy, Anbu; Gopal, Senthil Kumar published the artcile< Bithiophene triarylborane dyad: An efficient material for the selective detection of CN- and F- ions>, Computed Properties of 3480-11-3, the main research area is bithiophene triarylborane dyad fluorescent sensor fluoride cyanide.

A new fluorescent chemosensor based on bithiophene coupled dimesitylborane (BMB-1)(I) was synthesized and characterized. BMB-1 was used for colorimetric and turn-on fluorescent sensing of cyanide (CN-) and fluoride (F-) ions, in the presence of other competitive anions in an aqueous (CH3CN-H2O) medium. BMB-1 showed a hypsochromic shift (blue shift) with addition of CN- and F- ions in absorption studies. The lower detection level of CN- and F- ions is 1.37 × 10-9 and 1.75 × 10-9 M, resp. The BMB-1 binding mechanism is based on the nucleophilic addition of CN- and F- ions in the internal charge transfer transition of bithio moiety to the boranylmesitylene unit, and the color changes were observed under UV light. This result is further confirmed by Fourier transform IR spectroscopy, mass spectrometry and d. functional theory calculations Also, the BMB-1 probe is found to be a good adsorbent for the removal of F- ions in real water samples using the adsorption technique.

Applied Organometallic Chemistry published new progress about Adsorbents. 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Computed Properties of 3480-11-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Garcia-Amoros, Jaume; Castro, M. Cidalia R.; Nonell, Santi; Vilchez, Susana; Esquena, Jordi; Raposo, M. Manuela M.; Velasco, Dolores published the artcile< Adaptable photochromic switches with self-aggregating heterocyclic azo dyes>, Name: 5-Bromo-2,2′-bithiophene, the main research area is photochromic aggregation azo dye photoswitch.

It is well-known that the thermal isomerization kinetics of photochromic azo dyes can be modulated by subtle changes in their chem. architecture. However, the availability of an orthogonal input to control the thermal relaxation of azo dyes is essential to enable access to multifunctional and adaptive photochromic switches based on these particular organic chromophores. In this work, we have designed and synthesized a new family of green-light-activated heterocyclic azo derivatives that modify their switching capabilities as a function of concentration In this line, we have investigated their self-assembly and the nature of the supramol. aggregates formed by means of dynamic light scattering, polarized optical microscopy, and X-ray diffraction. Indeed, imparting control over the self-assembly of these organic dyes allows to fine-tune their thermal relaxation time and produce adaptable photochromic switches. Specifically, swapping the azo dye concentration between values located above and below the corresponding critical aggregation concentration modifies significantly the relaxation time up to 250 times, i.e., from the millisecond to the microsecond timescale. Moreover, the optical d. of the system can be switched back and forth hundreds of times, for both diluted and concentrated solutions, without any sign of fatigue.

Journal of Physical Chemistry C published new progress about Aggregation. 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Name: 5-Bromo-2,2′-bithiophene.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Roger, Maxime; Amro, Kassem; Rault-Berthelot, Joelle; Quiot, Mathias; Van der Lee, Arie; Poriel, Cyril; Richeter, Sebastien; Clement, Sebastien; Gerbier, Philippe published the artcile< Synthesis, photophysical and electropolymerization properties of thiophene-substituted 2,3-diphenylbuta-1,3-dienes>, Application In Synthesis of 3480-11-3, the main research area is thiophene diphenylbutadiene synthesis photophys electropolymerization property.

A series of 2,3-diphenylbuta-1,3-dienes (DPBs) bearing thiophene (T-DPB), bithiophene (BT-DPB) and ethylenedioxythiophene (EDOT-DPB) electropolymerizable units were prepared through desilylation reactions of the corresponding 3,4-diphenylsilole derivatives These DPB derivatives exhibit remarkably different aggregation induced emission (AIE) or aggregation enhanced emission (AEE) behavior depending on the strength of the mol. interactions occurring in the solid state. Indeed, T-DPB and EDOT-DPB were found to be good AIEgens while BT-DPB exhibited AEE behavior. Finally, the electrochem. properties of these new materials were investigated revealing for all DPBs the occurrence of electropolymerization processes leading potentially to low band gap polymers.

New Journal of Chemistry published new progress about Aggregation-induced emission. 3480-11-3 belongs to class bromides-buliding-blocks, and the molecular formula is C8H5BrS2, Application In Synthesis of 3480-11-3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary