Category: 91-16-7

Yadav, Naveen published the artcileRapid Access to Arylated and Allylated Cyclopropanes via Bronsted Acid-Catalyzed Dehydrative Coupling of Cyclopropylcarbinols, HPLC of Formula: 91-16-7, the publication is Journal of Organic Chemistry (2022), 87(10), 6886-6901, database is CAplus and MEDLINE.

A regioselective protocol for the synthesis of cyclopropyl derivatives that relies on Brookhart acid-catalyzed dehydrative coupling over substituted cyclopropylcarbinols without rearrangement is reported herein. The reactions proceed promptly at 25° with only 2.0 mol % catalyst loading and produce the cyclopropyl derivatives in excellent yields. This method is well tolerated with a vast range of cyclopropylcarbinols including aliphatic cyclopropylcarbinols, where no elimination product was obtained, demonstrating the protocol’s utility. Further, the Hammett correlation suggested the formation of a cyclopropylcarbinyl cation followed by a coupling reaction. An extremely effective gram-scale reaction has also been demonstrated with a high turnover number

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 C3H9ClOS, HPLC of Formula: 91-16-7.

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

Meringdal, Jonas W. published the artcileModular Synthesis of Halogenated Xanthones by a Divergent Coupling Strategy, Application In Synthesis of 91-16-7, the publication is Journal of Organic Chemistry (2022), 87(14), 9375-9383, database is CAplus and MEDLINE.

A versatile strategy to halogenated xanthones I (R¹ = H, R² = Br; R¹ = Br, R² = H; R³ = H, Cl) that relied on a modular coupling of vanillin derivatives with a dibromoquinone has been developed. Depending on the reaction conditions, either the 6- or the 7-bromo heterocycles can be obtained in a divergent manner. These heterocycles were readily further elaborated by sequential Sonogashira couplings, and the sequence might be successfully applied to substructures of the antibiotic lysolipin.

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, Application In Synthesis of 91-16-7.

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

Zhou, Jun published the artcileEtherification of Fluoroarenes with Alkoxyboronic Acid Pinacol Esters via C-F Bond Cleavage, Synthetic Route of 91-16-7, the publication is Organic Letters (2022), 24(28), 5084-5089, database is CAplus and MEDLINE.

Potassium-base-mediated defluoroetherification of aryl and heteroaryl fluorides with alkoxyboronic acid pinacol esters under transition-metal-free conditions is reported. This protocol efficiently and safely provides a wide variety of aryl ethers in high yields without using metal catalysts, specific ligands, and harsh conditions to selectively forge C_sp2-O bonds via the C_sp2-F cleavage. This method can be applied to the late-stage etherification of structurally complex C_sp2-fluorides and bioactive alcs., such as β-estradiol, calciferol, and tocopherol.

Organic 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 C11H22N2O4, Synthetic Route of 91-16-7.

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

Lu, Xiaojie published the artcileEurotium cristatum produced β-hydroxy acid metabolite of monacolin K and improved bioactive compound contents as well as functional properties in fermented wheat bran, Computed Properties of 91-16-7, the publication is LWT–Food Science and Technology (2022), 113088, database is CAplus.

For the first time, wheat bran was fermented with Eurotium cristatum (E. cristatum), and alterations in the structural and functional characteristics were explored. The results showed that the soluble dietary fiber (SDF) content significantly increased in fermented bran, and the water and oil holding capacities improved. The total polyphenols, anthocyanin, and main flavor substance phenylethyl alc. were significantly increased by E. cristatum fermentation The ferulic acid content was approx. 12.06 times higher in fermented bran than in unfermented bran. These changes may be due to the release of hydrolytic enzymes during E. cristatum fermentation E. cristatum fermentation enhanced the antioxidant and anti-obesity activities of bran. Furthermore, this study showing that E. cristatum fermentation produced β-hydroxy acid metabolites of monacolin K (MKA) in wheat bran. Thus, this research suggests that E. cristatum can be a starter culture to produce functional foods.

LWT–Food Science and 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, Computed Properties of 91-16-7.

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

Aykanat, Aylin published the artcileConductive Stimuli-Responsive Coordination Network Linked with Bismuth for Chemiresistive Gas Sensing, Formula: C8H10O2, the publication is ACS Applied Materials & Interfaces (2021), 13(50), 60306-60318, database is CAplus and MEDLINE.

This paper describes the design, synthesis, characterization, and performance of a novel semiconductive crystalline coordination network, synthesized using 2,3,6,7,10,11-hexahydroxytriphenylene (HHTP) ligands interconnected with bismuth ions, toward chemiresistive gas sensing. Bi(HHTP) exhibits two distinct structures upon hydration and dehydration of the pores within the network, Bi(HHTP)-α and Bi(HHTP)-β, resp., both with unprecedented network topol. (2,3-c and 3,4,4,5-c nodal net stoichiometry, resp.) and unique corrugated coordination geometries of HHTP mols. held together by bismuth ions, as revealed by a crystal structure resolved via microelectron diffraction (MicroED) (1.00 Å resolution). Good elec. conductivity (5.3 x 10^-3 S·cm^-1) promotes the utility of this material in the chem. sensing of gases (NH₃ and NO) and volatile organic compounds (VOCs: acetone, ethanol, methanol, and isopropanol). The chemiresistive sensing of NO and NH₃ using Bi(HHTP) exhibits limits of detection 0.15 and 0.29 ppm (ppm), resp., at low driving voltages (0.1-1.0 V) and operation at room temperature This material is also capable of exhibiting unique and distinct responses to VOCs at ppm concentrations Spectroscopic assessment via XPS and Fourier transform IR spectroscopic methods (i.e., attenuated total reflectance-IR spectroscopy (ATR-IR) and diffuse reflectance IR Fourier transformed spectroscopy (DRIFTS)), suggests that the sensing mechanisms of Bi(HHTP) to VOCs, NO, and NH₃ comprise a complex combination of steric, electronic, and protic properties of the targeted analytes.

ACS Applied Materials & Interfaces 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

Tu, Guangliang published the artcileLigand-Promoted Nickel-Catalyzed para-Selective Carboxylation of Anisoles, Application In Synthesis of 91-16-7, the publication is Organic Letters (2022), 24(11), 2155-2159, database is CAplus and MEDLINE.

It has always been a challenge in free radical chem. to control site selectivity during the reaction of free radicals with aromatic rings. Herein, the site-selective carboxylation of anisoles through the direct reaction of the bromoform radical with a benzene ring at the para position under the assistance of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline with nickel(II) as the catalyst is reported. A wide variety of anisoles were compatible, leading to para-carboxylated products in moderate to good yields. A preliminary mechanistic study suggested that the Ni(II) complex coordinates with the methoxyl group of the aromatic ring, which may have increased the steric hindrance at the ortho and meta positions, while this weak interaction reduces the aromaticity of the aromatic ring, affording an activated Ph ring, thereby leading to highly para-selective carboxylation.

Organic 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 C7H8BrClFN, Application In Synthesis of 91-16-7.

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

Diao, Xinyong published the artcileFabricating high temperature stable Mo-Co₉S₈/Al₂O₃ catalyst for selective hydrodeoxygenation of lignin to arenes, Quality Control of 91-16-7, the publication is Applied Catalysis, B: Environmental (2022), 121067, database is CAplus.

Achieving high-temperature stability/duration without compromising the activity remains an arduous task in catalyst design, particularly for MoS₂ materials. Herein, a robust catalyst with Mo doped Co₉S₈ nanoparticles anchored on Al₂O₃ matrix is fabricated, which could selectively convert lignin to arenes with high hydrodeoxygenation activity, selectivity and particularly excellent stability. In the hydrodeoxygenation of di-Ph ether, this catalyst afforded 99.8% conversion and 91.0% yield of benzene at 265°C for at least 10 reaction runs. The resultant Mo-Co₉S₈ structure with chem. connection by covalent bonds of Mo-S-Co type on the Co₉S₈ surface demonstrates strong ability in the adsorption and activation of oxygen-containing substrates, which enables the effective C-O cleavage while avoids undesirable hydrogenation of benzene ring. The superior stability and water-resistance at elevated temperature was attributed to the anchoring effect of Al₂O₃ matrix and “protection” of surface-rich Co₉S₈ species to the active Mo-Co₉S₈ center. This strategy provides new sights for the rational design of efficient and stable sulfide catalysts toward the applications in demanding high-temperature reactions.

Applied Catalysis, B: Environmental 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, Quality Control of 91-16-7.

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

Jia, Zhichao published the artcileHighly Selective Hydrodeoxygenation of Lignin to Naphthenes over Three-Dimensional Flower-like Ni₂P Derived from Hydrotalcite, Category: ethers-buliding-blocks, the publication is ACS Catalysis (2022), 12(2), 1338-1356, database is CAplus.

A strategy for low-temperature synthesis of hydrotalcite-based nickel phosphide catalysts (Ni₂P-Al₂O₃) with flower-like porous structures was proposed. The in situ reduction of red phosphorus at 500°C enables Ni₂P catalysts with small particle size and abundant active and acidic sites, which facilitate the activation of substrates and H₂. In the hydrodeoxygenation of guaiacol, a 100% conversion and 94.5% yield of cyclohexane were obtained over the Ni₂P-Al₂O₃ catalyst under 5 MPa H₂ at 250°C for 3 h. Other lignin-derived phenolic compounds could also afford the corresponding alkanes with yields higher than 85%. Moreover, Ni₂P-Al₂O₃ exhibited high hydrodeoxygenation activity in the deconstruction of more complex wood structures, including lignin oil and real lignin. Among the two different types of Ni sites of Ni(1) and Ni(2) in Ni₂P, d. functional theory (DFT) calculations showed that the Ni(2) site, highly exposed on the Ni₂P-Al₂O₃ surface, possesses a stronger ability to break C-OH bonds during the hydrodeoxygenation of guaiacol in comparison with the Ni(1) site.

ACS Catalysis 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

Keim, Michael published the artcile1,3-Bis(trifluoromethyl)prop-2-ene 1-Iminium Salts: Reactions with Alkoxybenzenes and Anilines, Formula: C8H10O2, the publication is Synthesis (2022), 54(6), 1587-1600, database is CAplus.

1,3-Bis(trifluoromethyl)prop-2-ene 1-iminium triflate salts were prepared for the first time and some synthetic applications as 1,3-biselectrophilic building blocks were established. They were found to react with dimethoxybenzenes or methylene-1,2-dioxybenzenes to furnish vinylogous trifluoroacetylation products (4-aryl-1,1,1,5,5,5-hexafluoropent-3-en-2-ones) and 1-dialkylamino-1,3-bis(trifluoromethyl)-1 H-indenes. With aniline and ring-substituted anilines, 2,4-bis(trifluoromethyl)quinolines were formed. An unusual 4 H-pyran, formally a condensation product of the N, N-dimethyl-1,3-bis(trifluoromethyl)prop-2-en-1-iminium ion and its enaminone precursor, is also reported.

Synthesis 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

Kochurin, Matvei A. published the artcileReactions of linear conjugated dienone structures with arenes under superelectrophilic activation conditions. An experimental and theoretical study of intermediate multicentered electrophilic species, Quality Control of 91-16-7, the publication is New Journal of Chemistry (2022), 46(25), 12041-12053, database is CAplus.

Reactions of linear conjugated dienone structures ArCH=CHCHCHC(O)X, 1,5-diarylpenta-2,4-dien-1-ones (X = Ar’), 5-phenylpenta-2,4-dienoic acid (Ar = Ph, X = OH) and its Me ester (Ar = Ph, X = OMe), with arenes under superelectrophilic activation conditions by Bronsted superacids (CF₃SO₃H and FSO₃H) or strong Lewis acid (AlCl₃) result in the formation of various compounds, such as conjugated enones, indanes, and carbocyclic derivatives The formation of the reaction products depends on the structures of starting compounds (dienone and arene) and on the reaction conditions (temperature, time, and medium acidity). In these transformations, starting dienones are precursors of di- and tri-centered electrophilic synthons leading to target products. A NMR study and DFT calculations have shown that the most probable reactive intermediates should be O,C-diprotonated species Ar⁺CHCH₂CHCHC(O⁺H)X derived from the protonation of starting dienones. Plausible mechanisms of electrophilic transformations are discussed.

New Journal of 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, Quality Control of 91-16-7.

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