Category: 91-16-7

Taniya, Olga S. published the artcileAbnormal push-pull benzo[4,5]imidazo[1,2-a][1,2,3]triazolo[4,5-e]pyrimidine fluorophores in planarized intramolecular charge transfer (PLICT) state: Synthesis, photophysical studies and theoretical calculations, Quality Control of 91-16-7, the publication is Dyes and Pigments (2022), 110405, database is CAplus.

Herein, a series of novel 4-heteroaryl-substituted 2-aryl-2H-benzo[4,5]imidazo[1,2-a][1,2,3]triazolo[4,5-e]pyrimidine fluorophores possessing a planarized intramol. charge transfer (PLICT) state was designed. All these fluorophores exhibited high luminescence quantum yields (up to 60%) and large Stokes shift values of up to 7459 cm^-1. Among them, the fluorophore I was found to exhibit the most pronounced pos. solvatochromic effect and the probe II exhibited the most pronounced aggregation induced emission characteristics. This aggregation induced emission behavior was further confirmed by means of time-resolved fluorescence lifetime measurements as well as DFT-assisted geometry optimization studies. In the presence of trifluoroacetic acid (TFA) compound I exhibited a well-pronounced acidochromism via visible color change from yellow-green to orange which returned to the original yellow-green solution after the addition of triethylamine (TEA). The Stern-Volmer constant for the probe I towards TFA was 38 M^-1. Finally, for the compounds II, III, I theor. calculations in the ground and excited states in different solvents were carried out to confirm the PLICT process. Based on all above the herein reported PLICT fluorophores can be successfully applied as biol. probes and optical switches.

Dyes and Pigments published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C12H25Br, Quality Control of 91-16-7.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Ryan, Rachael Y. M. published the artcileThe medicinal plant Tabebuia impetiginosa potently reduces pro-inflammatory cytokine responses in primary human lymphocytes, HPLC of Formula: 91-16-7, the publication is Scientific Reports (2021), 11(1), 5519, database is CAplus and MEDLINE.

Bark from the Handroanthus impetiginosus (Mart. ex DC.) Mattos (Bignoniaceae) tree has long been used in traditional South American healing practises to treat inflammation. However, its anti-inflammatory activity has not been closely examined Here we use chem. extraction, qual. phytochem. examination, toxicity testing and quant. examination of anti-inflammatory activity on human cells ex vivo. All extracts were found to be nontoxic. We found different extracts exhibited unique cytokine profiles with some extracts outperforming a pos. control used in the clinic. These results verify the immunomodulatory activity of Handroanthus impetiginosus (Mart. ex DC.) Mattos (Bignoniaceae) tree bark-derived compounds Collectively, combining a lack of toxicity and potency in human immune cells supports further fractionation and research.

Scientific Reports published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, HPLC of Formula: 91-16-7.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Topolovcan, Nikola published the artcileChemoselective and Regioselective Synthesis of Spiroisoindolinone Indenes via an Intercepted Meyer-Schuster Rearrangement/Intramolecular Friedel-Crafts Alkylation Relay, SDS of cas: 91-16-7, the publication is Journal of Organic Chemistry, database is CAplus and MEDLINE.

A Bronsted acid-catalyzed reaction between isoindolinone-derived propargylic alcs. I [R = H, 2-Me, 3-Cl, 4-Me, etc.; R ₁ = Me, iso-Pr, benzyl, etc.] and external aromatic nucleophiles [such as 1,3,5-trimethoxybenzene, 1-naphthol, 1H-indole, etc.] for the construction of spiroisoindolinone indenes II [R ₂ = H, 7-Me, 6-Cl, 5-Me, etc.], e.g., III is described. The reaction proceeds rapidly with a broad range of substrates to generate spiroindenes II, e.g., III chemoselectively and regioselectively in moderate to high yields. Key to the success of this transformation is an intercepted Meyer-Schuster rearrangement/intramol. Friedel-Crafts alkylation relay that offers a modular approach in the synthesis of target compds II, e.g., III.

Journal of Organic Chemistry published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H17Br, SDS of cas: 91-16-7.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Fu, Gui-Ming published the artcileAnalysis of microbial community, physiochemical indices, and volatile compounds of Chinese te-flavor baijiu daqu produced in different seasons, Safety of 1,2-Dimethoxybenzene, the publication is Journal of the Science of Food and Agriculture (2021), 101(15), 6525-6532, database is CAplus and MEDLINE.

Chinese te-flavor baijiu (CTF), the most famous Chinese baijiu in Jiangxi province, China, is made from a unique daqu. Its characteristic style is closely related to the daqu used for fermentation However, current studies on the effects of different production seasons on microbial communities, physicochem. indexes, and volatile compounds in CTF daqu are very rare. The relationships of microbial communities, physicochem. indexes, and volatile compounds in CTF daqu produced in summer (July and August) and autumn (Sept. and Oct.) were studied. The results of Illumina MiSeq sequencing indicated that there was greater bacterial diversity in the CTF daqu-7 (produced in July) and CTF daqu-8 (produced in August) and greater fungal diversity in the CTF daqu-9 (produced in Sept.) and CTF daqu-10 (produced in Oct.). The physicochem. indexes of CTF daqu produced in different seasons were significantly different. It was determined that CTF daqu-9 had the highest esterification and liquefaction abilities. A total of 44 volatile compounds, including alcs., esters, aldehydes, and ketones were identified in CTF daqu produced during different seasons. Among them, CTF daqu-9 had the greatest alc. content. Sept. (early autumn) is the best production period for CTF daqu. The results of the study provide a theor. basis for the standardized and uniform production of Chinese baijiu. 2021 Society of Chem. Industry.

Journal of the Science of Food and Agriculture published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, Safety of 1,2-Dimethoxybenzene.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Hu, Guishan published the artcilePyrazine-cored covalent organic frameworks for efficient CO₂ adsorption and removal of organic dyes, Related Products of ethers-buliding-blocks, the publication is Polymer Chemistry (2022), 13(25), 3827-3832, database is CAplus.

The rational introduction of nitrogen heterocycles into a linker of covalent organic frameworks (COFs) can effectively capture CO₂ and remove dyes in sewage. Here, we report the designed synthesis of COF-H1 and COF-H2, starting from integration reactions between a novel tetratopic 2,3,5,6-tetrakis(4-aminophenyl)pyrazine and ditopic aromatic aldehydes. They crystallize as 2D microporous pore structures with high stability in different environments, exhibiting good CO₂ uptake capacities of 56.8 and 66.2 mg g^-1 at 273 K, resp. COF-H1 and COF-H2 exhibit efficient adsorption performances for rhodamine B, methylene blue, Congo red and gentian violet, especially reaching the adsorption equilibrium for Congo red in 5 min together with an adsorption capacity of 470.3 and 362.9 mg g^-1, resp.

Polymer Chemistry published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, Related Products of ethers-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Han, Xiaocui published the artcileNovel Polymers with Ultrapermeability Based on Alternately Planar and Contorted Units for Gas Separation, Name: 1,2-Dimethoxybenzene, the publication is ACS Materials Letters (2022), 4(1), 61-67, database is CAplus.

Polymers of intrinsic microporosity (PIMs) have been the potential candidates as gas separation membrane materials, because of their high permeability and good processing. Here, three PIMs (PIM-ABAs) with ultrahigh permeability are reported; these are significantly more permeable than the PIM-1 and other PIMs reported and do not lose high selectivity and good processing merit. The introduction of large and rigid planar units alternatively contorted units suppresses the compact packing of polymer chains, resulting in the hierarchical porosity range of 0.5-4.0 nm. The presence of larger pores is responsible for promoting permeability. PIM-ABA-OMEN demonstrates the optimal CO₂ permeability (16 736 barrer), which is 3.95 times more than PIM-1 (4234 barrer) with equivalent gas selectivity and PIM-ABA-EN exhibits the promotion of both permeability and selectivity. After being aged for 186 days, PIM-ABAs still showed the CO₂ permeability above 8000 barrer, which is almost as 2 times greater than that of unaged PIM-1. This work provides a new strategy for the preparation of PIMs with enhanced gas separation performance.

ACS Materials Letters published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, Name: 1,2-Dimethoxybenzene.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Gao, Hui published the artcileElectrochemical benzylic C-H arylation of xanthenes and thioxanthenes without a catalyst and oxidant, Formula: C8H10O2, the publication is Organic Chemistry Frontiers (2022), 9(7), 1911-1916, database is CAplus.

A catalyst-free and oxidant-free C-H arylation of xanthenes and thioxanthenes I (R¹ = H, Me, OH, Cl, etc.; R² = H, OMe; R³R⁴ = -CH=CH-CH=CH-; X = O, S) using electrochem. has been developed, which affords a number of cross-coupling products II (R⁵ = 4-methoxyphenyl, 4-methoxy-3-methylphenyl, 4-methoxy-3,5-dimethylphenyl, 2H-1,3-benzodioxol-5-yl, etc.) in moderate to good yields. This method is atom- and step-economical as it uses cheap and easily available arenes and heteroarenes as partners directly and the C(sp²)-H/C(sp³)-H type cross-coupling reaction.

Organic Chemistry Frontiers published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, Formula: C8H10O2.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Li, Wen-Pei published the artcileAcid-Free Copper-Catalyzed Electrophilic Nitration of Electron-Rich Arenes with Guanidine Nitrate, HPLC of Formula: 91-16-7, the publication is Journal of Organic Chemistry, database is CAplus and MEDLINE.

A practical copper-catalyzed nitration of electron-rich arenes with trimethylsilyl chloride and guanidine nitrate is reported. A variety of nitrated products were generated in moderate to excellent yields (32%-99%) at ambient temperature under acid free, open-flask and operationally simple conditions.

Journal of Organic Chemistry published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, HPLC of Formula: 91-16-7.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Zhang, Qingyu published the artcileHypervalent Chalcogenonium…π Bonding Catalysis, Computed Properties of 91-16-7, the publication is Angewandte Chemie, International Edition, database is CAplus and MEDLINE.

A proof-of-concept study of hypervalent chalcogenonium…π bonding catalysis was performed. A new catalytic strategy using 1,2-oxaselenolium salts as chalcogen bond donors and alkenes as chalcogen bond acceptors is described. The feasibility of this concept is demonstrated by the use of trisubstituted selenonium salts in the metal-free catalytic hydrofunctionalization and polymerization of alkenes via unconventional seleniranium ion-like intermediates. The results indicate that counter anions have a significant effect on the catalysis based on hypervalent chalcogenonium…π bonding interactions.

Angewandte Chemie, International Edition published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C7H5Cl2NO, Computed Properties of 91-16-7.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem

Hung, Chang-Mao published the artcileSuppression of polycyclic aromatic hydrocarbon formation during pyrolytic production of lignin-based biochar via nitrogen and boron co-doping, Category: ethers-buliding-blocks, the publication is Bioresource Technology (2022), 127246, database is CAplus and MEDLINE.

Polycyclic aromatic hydrocarbons are toxic byproducts of biochar production The effects of pyrolysis atm. (i.e., N₂ and CO₂) and temperature (i.e., 300-900 °C) and element doping (i.e., N, B, O, and S) on the production of sixteen high priority polycyclic aromatic hydrocarbons in lignin-based biochar was investigated. N₂ atmosphere at 300 °C produced the highest total polycyclic aromatic hydrocarbon content (1698 ± 50 ng/g). Polycyclic aromatic hydrocarbon formation decreased with increase in temperature (31 ± 15 ng/g at 900 °C). CO₂ atmosphere significantly decreased yield of polycyclic aromatic hydrocarbons. The effects of heteroatom doping on polycyclic aromatic hydrocarbon formation were investigated for the first time in the pyrolysis synthesis of lignin-based biochar. N-, B-, O, N-B-, and N-S-doping of biochar reduced polycyclic aromatic hydrocarbon formation by 90, 85, 87, 97, and 89%, resp. Results bring new insights into the role of heteroatom-doping and pyrolysis conditions in controlling polycyclic aromatic hydrocarbon formation in biochars.

Bioresource Technology published new progress about 91-16-7. 91-16-7 belongs to ethers-buliding-blocks, auxiliary class Benzene,Ether,Inhibitor,Inhibitor,Inhibitor, name is 1,2-Dimethoxybenzene, and the molecular formula is C8H10O2, Category: ethers-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem