Tag: M.W=150-200

Liu, Zhang; Deng, Chao; Su, Liwu; Wang, Dan; Jiang, Yongshi; Tsuboi, Taiju; Zhang, Qisheng published the artcile< Efficient Intramolecular Charge-Transfer Fluorophores Based on Substituted Triphenylphosphine Donors>, Computed Properties of 576-83-0, the main research area is efficient intramol charge transfer fluorophore substituted triphenylphosphine donor; intramolecular charge transfer; non-radiative decay; organic light emitting diodes; thermally activated delayed fluorescence; triphenylphosphine donor.

Triphenylphosphine (TPP)-based luminescent compounds are rarely investigated because of the low photoluminescence quantum yield (PLQY). Here, we demonstrate that introducing steric hindrance groups to the TPP moiety and separating the orbitals involved in the transition can drastically suppress the non-radiative decay induced by structural distortion of TPP in the excited state. High PLQY up to 0.89 as well as thermally activated delayed fluorescence are observed from the intramol. charge-transfer (ICT) mols. with substituted TPP donors (sTPPs) in doped films. The red organic light-emitting diodes employing these emitters achieve comparable external quantum efficiencies to the control device containing a classical phosphorescent dye, revealing the great potential of the ICT emitters based on electrochem. stable sTPPs.

Angewandte Chemie, International Edition published new progress about Band structure. 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Computed Properties of 576-83-0.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Patnaik, Sai Gourang; Jayakumar, Tejkiran Pindi; Sawamura, Yukihiro; Matsumi, Noriyoshi published the artcile< Defined Poly(borosiloxane) as an Artificial Solid Electrolyte Interphase Layer for Thin-Film Silicon Anodes>, Computed Properties of 576-83-0, the main research area is LIB defined polyborosiloxane artificial SEI silicon anode.

Solid electrolyte interphase (SEI) formation in Li-ion batteries is essential for good long-term performance of the cell. However, for electrodes exhibiting high volume expansion (like Si and Sn), continuous SEI formation can not only deplete electrolyte content but also increase cell impedance and hence mediocre performance. This is particularly detrimental in the case of thin-film electrodes where there is a minute amount of active materials loading. In the current work, defined poly(borosiloxane) (PBS) as an artificial polymeric SEI having self-healing, anion-trapping properties, and electron-deficient boron moiety is investigated. Studies on thin-film Si electrodes show excellent enhancement with polymeric coating in terms of cycling stability. These improvements are attributed to a combination of factors including the anion-trapping effect of tricoordinate boron, self-healing ability of PBS, and adherence to the electrode surface.

ACS Applied Energy Materials published new progress about Battery anodes. 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Computed Properties of 576-83-0.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vikram, V.; Amperayani, K. R.; Umadevi, P. published the artcile< Derivatives of 3-(Methoxycarbonyl)thiophene Thiourea as Potential Potent Bacterial Acetyl-CoA Carboxylase Inhibitors>, Recommanded Product: 4-Bromobenzylamine, the main research area is methoxy carbonyl thiophene preparation antibacterial antifungal mol docking.

Novel thiourea derivatives containing a 3-(methoxycarbonyl)thiophene pharmacophore were synthesized and tested for activity against Gram-pos. (Salmonella typhi and Klebsiella pneumonia) and Gram-neg. (Micrococcus luteus and Staphylococcus aureus) bacterial strains and fungal strains (Aspergillus niger and Fusarium oxysporum), as well as the binding energies of the synthesized compounds to the bacterial acetyl-CoA carboxylase were determined The pharmacokinetic characteristics (ADMEt) of the synthesized compounds were calculated According to both the in vitro and in silico results, the highest activity against all the strains and the highest binding efficiency to the bacterial acetyl-CoA carboxylase was characteristic Me 2-[3-(4-ethylbenzyl)thioureido]thiophene-3-carboxylate. The calculated pharmacokinetic characteristics showed that all the synthesized compounds were safe to administer orally. It was concluded that the 3-(methoxycarbonyl)thiophene thiourea derivatives could act as potent inhibitors of bacterial acetyl-CoA carboxylase.

Russian Journal of Organic Chemistry published new progress about Antibacterial agents. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Recommanded Product: 4-Bromobenzylamine.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liu, Chang; Zhang, Chao; Lu, Tong-Bu published the artcile< Graphdiyne anchored ultrafine Ag nanoparticles for highly efficient and solvent-free catalysis of CO2 cycloaddition>, Synthetic Route of 3959-07-7, the main research area is silver nanoparticle carbon dioxide cycloaddition graphdiyne.

Apart from photo-/electro-catalytic CO2 reduction, an important alternative route to CO2 utilization is to use this inert mol. as a C1 source to synthesize value-added chems.; however, the practical application is limited by the low conversion efficiency. Herein, we reported a composite catalyst of 3D sponge-like pyrenyl-graphdiyne (Pyr-GDY) anchored ultrafine Ag nanoparticles (Ag/Pyr-GDY), with the average size of Ag NPs of only 1.6 nm. The porous 3D Pyr-GDY component can not only anchor and stabilize the capping agent free ultrafine Ag NPs by virtue of the strong affinity between alkynyl groups and Ag, but also enhance the local concentration of CO2 due to the porous nature of 3D Pyr-GDY. As a result, the optimized Ag/Pyr-GDY catalyst displays a record-high activity towards the catalysis of CO2 cycloaddition with propargylamines under ambient temperature and pressure, with a TON of 20 488 and a yield of 83%, and is 15.3 times more active than the most efficient catalyst Ag27-MOF (TON = 1333, yield = 34%). Moreover, our catalysis was performed in a solvent-free system, which provides an economic, green and practical avenue for carbon capture, utilization and storage (CCUS).

Materials Chemistry Frontiers published new progress about Concentration (process). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Synthetic Route of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Jimenez-Almarza, Alicia; Lopez-Magano, Alberto; Mas-Balleste, Ruben; Aleman, Jose published the artcile< Tuning the Activity-Stability Balance of Photocatalytic Organic Materials for Oxidative Coupling Reactions>, Quality Control of 3959-07-7, the main research area is imine preparation; amine oxidative coupling photocatalytic; amines; imines; organic materials; oxidative coupling; photocatalysis.

In the series of materials reported herein, the triazine-based material shows the optimal compromise between activity and stability when studied for the oxidative coupling of amines, achieving imine products. Accordingly, while significant leaching of mol. active fragments was ruled out for triazine-based polymers, other materials of the series show a significant chem. erosion as a result of the reaction with the amine substrates. Consequently, only a triazine-based material allowed performing several catalytic cycles (up to seven) with yields higher than 80%. The applicability of this heterogeneous catalyst had been proven with a variety of substrates, confirming its stability and obtaining diverse imine coupling products with excellent yields.

ACS Applied Materials & Interfaces published new progress about Amines Role: RCT (Reactant), RACT (Reactant or Reagent). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Quality Control of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Ahammed, Khondakar Sayef; Pal, Ritesh; Chakraborty, Jeet; Kanungo, Ajay; Purnima, Polnati Sravani; Dutta, Sanjay published the artcile< DNA Structural Alteration Leading to Antibacterial Properties of 6-Nitroquinoxaline Derivatives>, Reference of 3959-07-7, the main research area is DNA structure nitroquinoxaline derivative antibacterial activity.

Structural integrity of the bacterial genome plays an important role in bacterial survival. Cellular consequences of an intolerable amount of change in the DNA structure are not well understood in bacteria. We have stated that binding of synthetic 6-nitroquinoxaline derivatives with DNA led to change in its global structure, subsequently culminating with over-supercoiled form through in-path intermediates. This structural change results in induction of programmed cell death like physiol. hallmarks, which is dependent on substitution driven structural modulation properties of the scaffold. A sublethal dose of a representative derivative significantly inhibits DNA synthesis, produces fragmented nucleoids, and alters membrane architecture. We have also shown that exposure to the compound changes the native morphol. of Staphylococcus aureus cells and significantly disrupts preformed biofilms. Thus, our study gives new insight into bacterial responses to local or global DNA structural changes induced by 6-nitroquinoxaline small mols.

Journal of Medicinal Chemistry published new progress about Antibacterial agents. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Reference of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Yu, Bangkui; Zou, Suchen; Liu, Hongchi; Huang, Hanmin published the artcile< Palladium-Catalyzed Ring-Closing Reaction via C-N Bond Metathesis for Rapid Construction of Saturated N-Heterocycles>, Product Details of C7H8BrN, the main research area is spirocycle preparation palladium catalyzed ring closure aminodiene aminal; fused ring preparation palladium catalyzed ring closure aminodiene aminal.

The ring-closing reactions based on chem. bond metathesis enable the efficient construction of a wide variety of cyclic systems which receive broad interest from medicinal and organic communities. However, the analogous reaction with C-N bond metathesis as a strategic fundamental step remains an unanswered challenge. Herein, we report the design of a new fundamental metallic C-N bond metathesis reaction that enables the palladium-catalyzed ring-closing reaction of aminodienes with aminals. The reactions proceed efficiently under mild conditions and exhibit broad substrate generality and functional group compatibility, leading to a wide variety of 5- to 16-membered N-heterocycles bearing diverse frameworks and functional groups.

Journal of the American Chemical Society published new progress about Alkadienes Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation) (amino). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Product Details of C7H8BrN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Venu, Boosa; Shirisha, Varimalla; Vishali, Bilakanti; Naresh, Gutta; Kishore, Ramineni; Sreedhar, Inkollu; Venugopal, Akula published the artcile< A Cu-BTC metal-organic framework (MOF) as an efficient heterogeneous catalyst for the aerobic oxidative synthesis of imines from primary amines under solvent free conditions>, Application In Synthesis of 3959-07-7, the main research area is metal organic framework catalyst amine aerobic oxidation imine synthesis; physicochem property.

A Cu-BTC (MOF-199) [copper(II)-benzene-1,3,5-tricarboxylate] catalyst has been synthesized and evaluated for imine synthesis from amine compounds under neat conditions. The performance of the Cu-BTC MOF was significantly higher than that of the CuO supported on Al2O3, TiO2 and SiO2 catalysts. The role of surface Lewis acid sites on the catalyst in the formation of imine products was illustrated by the pyridine-IR studies. The recovered Cu-BTC catalyst demonstrated consistent activity for five cycles under similar exptl. conditions. The physicochem. properties of the catalysts were analyzed by XRD, BET-SA, FT-IR, UV-DRS, SEM, TEM, XPS and pyridine adsorbed DRIFT spectroscopy.

New Journal of Chemistry published new progress about Green chemistry. 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Application In Synthesis of 3959-07-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wu, Shaofeng; Geng, Furong; Dong, Jianyu; Liu, Long; Su, Lebin; Zhou, Yongbo published the artcile< General and practical synthesis of naphtho[2,1-d]oxazoles from naphthols and amines>, Product Details of C7H8BrN, the main research area is naphthol amine oxidative cyclization; naphthooxazole preparation.

A general and practical synthesis of naphtho[2,1-d]oxazoles from readily available naphthols and amines was developed using TEMPO as the oxygen source with outstanding functional group tolerance, especially for the construction of the naphthoxazole-related bioactive mol. PBNI and naphthoxazole-doped materials, as well as the polyaryloxazole-related ADN derivative This protocol allowed the rapid assembly of a small library of naphtho[2,1-d]oxazole skeletons (55 examples) that are difficult to be prepared by other methods. The ESR (EPR) and 18O-labeled experiments indicated that the radical adducts of TEMPO with naphthalenone radicals may serve as key intermediates.

Organic Chemistry Frontiers published new progress about Aromatic alcohols Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 3959-07-7 belongs to class bromides-buliding-blocks, and the molecular formula is C7H8BrN, Product Details of C7H8BrN.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Isoda, Motoyuki; Uetake, Yuta; Takimoto, Tadashi; Tsuda, Junpei; Hosoya, Takamitsu; Niwa, Takashi published the artcile< Convergent Synthesis of Fluoroalkenes Using a Dual-Reactive Unit>, Electric Literature of 576-83-0, the main research area is aryl bromide arylboronicacid palladium catalyst chemoselective reaction; fluoroalkene preparation.

For the synthesis of diverse fluoroalkenes, a dual-reactive C2-unit, (Z)-1-boryl-1-fluoro-2-tosyloxyethene, containing nucleophilic and electrophilic moieties method was developed. Consecutive palladium-catalyzed cross-coupling reactions of this unit with aryl bromides and aryl boronic acids allow for the convergent synthesis of diverse trans-1,2-diaryl-substituted fluoroethenes in a chemoselective and stereoretentive manner.

Journal of Organic Chemistry published new progress about Alkylation, chemoselective. 576-83-0 belongs to class bromides-buliding-blocks, and the molecular formula is C9H11Br, Electric Literature of 576-83-0.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary