Category: 645-56-7

Nagasawa, Yoshiyuki published the artcileHydrogenation of 4-Propylphenol over Carbon-supported Palladium Catalyst without External Hydrogen: Effect of Carbon Support and Palladium Loading, Computed Properties of 645-56-7, the publication is Chemistry Letters (2021), 50(3), 431-434, database is CAplus.

The ring hydrogenation of 4-propylphenol in aqueous ethanol solution was studied over graphite- and activated carbon-supported palladium catalysts (Pd/G and Pd/C) with 0.1-5 wt% of palladium loadings without using external hydrogen. Decomposition of ethanol produced hydrogen which was responsible for the hydrogenation of 4-propylphenol over palladium metal particles on both the supports in aqueous medium. The different hydrogenation behaviors were discussed based on surface properties of supports.

Chemistry Letters published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Computed Properties of 645-56-7.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Oppegard, Martin published the artcileDetermination of C₀-C₉ alkyl phenols in produced-water-exposed fish eggs using gas chromatography/tandem mass spectrometry, Recommanded Product: 4-Propylphenol, the publication is Rapid Communications in Mass Spectrometry (2020), 34(24), e8950, database is CAplus and MEDLINE.

Rationale: Produced water (PW) discharge from the oil and gas industry represents the largest intentional marine waste volume Alkyl phenols (APs) are one of the main toxic component groups found in PW, with concentration of APs in discharged PW from the Norwegian Sector of the North Sea up to >16 mg/L. Several species of fish spawn in direct proximity to offshore production platforms and may be at risk of AP exposure. Therefore, a sensitive method to determine the potential for bioaccumulation of APs in fish eggs is needed. Methods: Fish eggs were extracted using liquid-solid extraction followed by gel permeation chromatog. cleanup. Anal. was performed by gas chromatog. coupled to triple quadrupole mass spectrometry. Extraction and anal. conditions were optimized for anal. of phenol and 30 APs (C₁-C₉) with different degrees of branching in the alkyl chain. The method was verified and applied to analyze the body residue of APs in PW-exposed marine fish (Atlantic cod, Gadus morhua) eggs. Results: A comprehensive and sensitive method for the determination of C₀-C₉ APs was developed. Detection limits were in the range 0.03-8 ng. Apart from a few compounds with poor recovery, the method generally provided reliable results with good precision (<15%). Conclusions: We demonstrate the successful application of an optimized extraction method for APs in fish eggs and show first results of AP accumulation in cod embryos exposed to PW in the laboratory

Rapid Communications in Mass Spectrometry published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Recommanded Product: 4-Propylphenol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Smoum, Reem published the artcileFenchone Derivatives as a Novel Class of CB2 Selective Ligands: Design, Synthesis, X-ray Structure and Therapeutic Potential, Application In Synthesis of 645-56-7, the publication is Molecules (2022), 27(4), 1382, database is CAplus and MEDLINE.

A series of novel cannabinoid-type derivatives was synthesized by the coupling of (1S,4R)-(+) and (1R,4S)-(-)-fenchones I (R = H, Me, n-pentyl, 2-methylbutan-2-yl, etc.; R¹ = H, hexyl; R² = H, OMe) with various resorcinols RC₆H₃(OH)₂/phenols RC₆H₄OH. The fenchone-resorcinol derivatives I were fluorinated using Selectfluor and demethylated using sodium ethanethiolate in DMF (DMF). The absolute configurations of four compounds were determined by X-ray single crystal diffraction. The fenchone-resorcinol analogs I possessed high affinity and selectivity for the CB2 cannabinoid receptor. One of the analogs synthesized, I (R = 2-methyloctan-2-yl, R¹ = H, R² = OMe (II)), had a high affinity (K_i = 3.51 nM) and selectivity for the human CB2 receptor (hCB2). In the [³⁵S]GTPγS binding assay, the lead compound was found to be a highly potent and efficacious hCB2 receptor agonist (EC₅₀ = 2.59 nM, E_(max) = 89.6%). Two of the fenchone derivatives I were found to possess anti-inflammatory and analgesic properties. Mol.-modeling studies elucidated the binding interactions of (II) within the CB2 binding site.

Molecules published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C3H6BrNaO3S, Application In Synthesis of 645-56-7.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Zhu, Cheng published the artcileKinetics of nitrogen-, oxygen- and sulfur-containing compounds hydrotreating during co-processing of bio-crude with petroleum stream, Recommanded Product: 4-Propylphenol, the publication is Applied Catalysis, B: Environmental (2022), 121197, database is CAplus.

The rational selection of catalysts and process parameters for co-processing biomass- and waste-derived bio-crudes with petroleum streams requires detailed reaction networks and kinetics of the conversion of heteroatom-containing compounds existed in both kinds of feedstocks. We provide the kinetics and reaction networks for the hydrotreating of N,N-diethyldodecanamide and N-methyldodecanamide, model compounds of major components in bio-crudes from hydrothermal liquefaction of wet waste. Their conversion undergoes via two pathways over sulfided NiMo/Al₂O₃ catalyst: deoxygenation followed by denitrogenation of the amine intermediate (DO pathway), and denitrogenation followed by deoxygenation of the alkanol intermediate (DN pathway)-with the DO pathway dominant over the DN pathway. H2S inhibits the deoxygenation step and promotes the denitrogenation step in the DO pathway. The amine intermediate inhibits the amide conversion, with weaker effects on the conversion of secondary amide than on the tertiary amide. The kinetics of hydrotreating of several model compounds representing the main species during co-processing indicate that the removal of nitrogenous species, which are in large quantities and of varying structures, remains the main challenge (compared with S- and O-removal) for co-processing.

Applied Catalysis, B: Environmental published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C14H31NO2, Recommanded Product: 4-Propylphenol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Qiao, Lin published the artcileScreening of ToxCast Chemicals Responsible for Human Adverse Outcomes with Exposure to Ambient Air, COA of Formula: C9H12O, the publication is Environmental Science & Technology (2022), 56(11), 7288-7297, database is CAplus and MEDLINE.

Air pollution poses a major threat to global public health. Although there have been a few investigations into the relationships between organic pollutants and adverse outcomes, the responsible components and mol. mechanisms may be ignored. In this study, a suspect screening method combining comprehensive two-dimensional gas chromatog. – time-of-flight mass spectrometry (GC x GC-TOFMS) with Toxicity Forecaster (ToxCast) database was applied to analyze complex hydrophobic compounds in ambient air and prospectively figure out toxicol. significant compounds 76 ToxCast compounds were screened, including 7 pollutants receiving less attention and 5 chems. never published in the air previously. Given the concentrations, bioactivities, as well as absorption, distribution, metabolism, and excretion properties in vivo, 29 contaminants were assigned high priority since they had active biol. effects in the vascular, lung, liver, kidney, prostate and bone tissues. Phenotypic linkages of key pollutants to potential mechanistic pathways were explored by systems toxicol. A total of 267 chem.-effect pathways involving 29 toxicants and 31 mol. targets were mapped in bipartite network, in which 12 key pathogenic pathways were clarified, which not only provided the evidence supporting previous hypothesis but also provided new insights into the mol. targets. The results would facilitate the development of pollutant priority control, population intervention and clin. therapeutic strategies so as to substantially reduce human health hazards induced by urban air.

Environmental Science & Technology published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, COA of Formula: C9H12O.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Xu, Pin published the artcileEnantioselective Radical Trifluoromethylation of Benzylic C-H Bonds via Cooperative Photoredox and Copper Catalysis, Quality Control of 645-56-7, the publication is Journal of the American Chemical Society (2022), 144(30), 13468-13474, database is CAplus and MEDLINE.

The first enantioselective radical trifluoromethylation of benzylic C-H bonds has been established by a cooperative photoredox and copper catalysis system, providing straightforward access to structurally diverse benzylic trifluoromethylation products RCH(CF₃)CH₂R¹ [R = Ph, 2-phenyl-1,3-benzothiazol-6-yl, 4-cyclopropylphenyl, etc.; R¹ = H, n-Pr, 2-(1,3-dioxo-2,3-dihydro-1H-isoindol-2-yl)ethyl, 2-chloroethyl, etc.] in good yields with excellent enantioselectivities under mild conditions. A broad substrate scope and excellent functional group compatibility were reported. Merging the cooperative photoredox catalysis with copper catalysis is essential for the reaction, where the photoredox catalysis is used for the generation of benzylic radicals from alkyl arenes alkyl arenes RCH₂CH₂R¹ through a hydrogen atom transfer process and the copper catalysis is used for the enantioselective trifluoromethylation of the benzylic radicals.

Journal of the American Chemical Society published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C16H14O6, Quality Control of 645-56-7.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Li, Lingxiao published the artcileHydrogen-Free Production of 4-Alkylphenols from Lignin via Self-Reforming-Driven Depolymerization and Hydrogenolysis, Related Products of alcohols-buliding-blocks, the publication is ACS Catalysis (2020), 10(24), 15197-15206, database is CAplus.

Lignin is constructed from methoxylated phenylpropanoid with plenty of hydroxy and methoxy groups. Its conversion to valuable products is extremely attractive but especially challenging without addnl. hydrogen sources. Herein we report a hydrogen-free production of 4-alkylphenols directly from native lignin via self-reforming-driven depolymerization and hydrogenolysis over Pt/NiAl₂O₄. This is the first example of acquiring 4-alkylphenols from native lignin. Using this strategy, high yields of 4-alkylphenols, 17.3 wt %, were obtained from birch lignin. Reaction pathway and mechanism studies revealed that this strategy initiates from the reforming of aliphatic hydroxys, followed by the cleavage of C-O linkages, and ends via demethoxylation over Pt/NiAl₂O₄. Moreover, the subsequent aqueous phase reforming of the as-formed methanol accelerates the whole process. This strategy realizes the one-pot production of 4-alkylphenols from lignin by fully utilizing the structural hydrogen in lignin and H₂O, providing a low-cost and safe method of lignin valorization.

ACS Catalysis published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Related Products of alcohols-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Ji, Na published the artcileToward Alkylphenols Production: Lignin Depolymerization Coupling with Methoxy Removal over Supported MoS₂ Catalyst, Recommanded Product: 4-Propylphenol, the publication is Industrial & Engineering Chemistry Research (2020), 59(39), 17287-17299, database is CAplus.

Alkylphenols are indispensable chems. that are currently derived from fossil resources. Conversion of lignin into alkylphenols in a selective manner is highly desirable, while it represents one of the biggest challenges in biorefinery. Herein, lignin depolymerization coupling with methoxy removal over supported MoS₂ catalyst for the direct production of alkylphenols has been studied. The catalysts were prepared by incipient wetness impregnation and characterized by N₂ physisorption, XRD, NH₃-TPD, CO chemisorption, ICP, TEM, and XPS. The catalytic performance and the reaction mechanism were initially assessed by the hydrodeoxygenation (HDO) of eugenol. Among the catalysts with MoS₂ supported on different supports (HZSM-5, SAPO-34, SiO₂, Al₂O₃, and activated carbon (AC)), the acid-rich MoS₂/AC with high sp. surface areas and more exposed MoS₂ edge sites owed a complete conversion of eugenol and 64.8% yield of 4-propylphenol under 3 MPa H₂ at 300°C for 3 h. In the conversion of lignin-oil, MoS₂/AC catalyst also exhibited excellent activity in the removal of all the methoxy groups in various aromatic monomers, achieving alkylphenols with selectivity up to 76.2%. Notably, this catalytic system also showed potential in simultaneous hydrocracking coupling with methoxy removal of realistic lignin to afford alkylphenols, thus providing a direct strategy for the selective valorization of lignin.

Industrial & Engineering Chemistry Research published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Recommanded Product: 4-Propylphenol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Li, Zhan-Ku published the artcilePretreatment of sweet sorghum stalk with aqueous hydrogen peroxide for enhancing methanolysis and property of the bio-oil, Name: 4-Propylphenol, the publication is Renewable Energy (2021), 1127-1136, database is CAplus.

Alcoholysis is a promising approach for converting biomass into fuels and/or chems. under mild conditions. However, the effect of pretreatment on biomass alcoholysis was rarely reported. Herein, the effect of pretreatment with H₂O₂ on sweet sorghum stalk (SSS) methanolysis was examined The results show that the pretreatment could markedly improve the bio-oil (BO) yield and decrease the appropriate temperature for obtaining maximum BO yield. The appropriate temperature for pretreated SSS methanolysis was determined to be 280 °C and the maximum BO yield is 44 wt%. In addition, higher heating values of the BOs were also enhanced based on elemental anal. According to anal. with gas chromatograph/mass spectrometer, phenolic compounds, esters, and sugars are predominant in the BOs, and the yield of phenolic compounds significantly increased from 91.75 to 111.68 mg·g^-1 by the pretreatment. Moreover, polar species in the BOs decreased and deoxygenation occurred during pretreated SSS methanolysis. Analyses with scanning electron microscope and N₂ physisorption reveal that pretreated SSS has more grooves and higher sp. surface area and anomalous porosity than SSS. According to analyses with Fourier transform IR spectrometer and X-ray photoelectron spectrometer, oxygen functional groups mainly in the forms of C=O and COO were introduced into SSS by the pretreatment. The changes of phys. and chem. structures should be responsible for enhancing SSS methanolysis and property of the BO.

Renewable Energy published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Name: 4-Propylphenol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts

Li, Wen-Pei published the artcileAcid-Free Copper-Catalyzed Electrophilic Nitration of Electron-Rich Arenes with Guanidine Nitrate, Safety of 4-Propylphenol, 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 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, Safety of 4-Propylphenol.

Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts