Category: 645-56-7

Dou, Zhaolin published the artcilePhotocatalytic Upgrading of Lignin Oil to Diesel Precursors and Hydrogen, SDS of cas: 645-56-7, the publication is Angewandte Chemie, International Edition (2021), 60(30), 16399-16403, database is CAplus and MEDLINE.

Producing renewable biofuels from biomass is a promising way to meet future energy demand. Here, we demonstrated a lignin to diesel route via dimerization of the lignin oil followed by hydrodeoxygenation. The lignin oil undergoes C-C bond dehydrogenative coupling over Au/CdS photocatalyst under visible light irradiation, co-generating diesel precursors and hydrogen. The Au nanoparticles loaded on CdS can effectively restrain the recombination of photogenerated electrons and holes, thus improving the efficiency of the dimerization reaction. About 2.4 mmol g_catal^-1 h^-1 dimers and 1.6 mmol g_catal^-1 h^-1 H₂ were generated over Au/CdS, which is about 12 and 6.5 times over CdS, resp. The diesel precursors are finally converted into C16-C18 cycloalkanes or aromatics via hydrodeoxygenation reaction using Pd/C or porous CoMoS catalyst, resp. The conversion of pine sawdust to diesel was performed to demonstrate the feasibility of the lignin-to-diesel route.

Angewandte Chemie, International Edition 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, SDS of cas: 645-56-7.

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

Li, Lingxiao published the artcileUnraveling the Role of Metal in M/NiAl₂O₄ (M = Pt, Pd, Ru) Catalyst for the Self-Reforming-Driven Hydrogenolysis of Lignin, Quality Control of 645-56-7, the publication is Industrial & Engineering Chemistry Research (2021), 60(31), 11699-11706, database is CAplus.

Previously, we found that, by self-reforming-driven hydrogenolysis of lignin or lignin oils, 4-alkylphenols can be produced directly under hydrogen-free conditions over Pt//NiAl₂O₄ catalyst (ACS Catal. 2020, 10, 15197-15206). That work mainly focused on the exploration of a new strategy and the reaction pathways of the hydrogen contained in lignin during its valorization. In this work, we use M/NiAl₂O₄ (M = Pt, Pd, Ru) catalysts to investigate the rate-determined step, structure-activity relationships, the adsorbed species, and the essence of different metals and finally screen a good catalyst with excellent performance. A temporal profile of reaction using a model compound and kinetic measurements disclosed that demethoxylation is the rate-determined step, in which Ru/NiAl₂O₄ has superior ability probably due to the faster removal of products that enables the rapid recovery of active sites for demethoxylation when compared to Pt/NiAl₂O₄. In contrast, side reactions and a low rate of demethoxylation were observed over Pd/NiAl₂O₄. In the self-reforming-driven hydrogenolysis of birch lignin and lignin oil, Ru/NiAl₂O₄ exhibited again its excellence in gaining 4-alkylphenols with yields of 40.7 and 92.8 mol % (5.7 and 44.5 weight %), from lignin and lignin oil, resp. This comprehensive study would help to design catalysts with higher activity for the self-reforming process of biomass resources.

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, Quality Control of 645-56-7.

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

Xiong, Dazhen published the artcileTemperature-switchable deep eutectic solvents for selective separation of aromatic amino acids in water, SDS of cas: 645-56-7, the publication is Separation and Purification Technology (2021), 118479, database is CAplus.

Amino acids are vital compounds in animal and human nutrition. However, it is still a great challenge to develop a cost-effective process for selective separation of amino acids. In the present study, a class of deep eutectic solvents (DESs) with short-chain alkanolamines as hydrogen bond acceptors (HBAs) and phenolic compounds as hydrogen bond donors (HBDs) have been explored for selective separation of aromatic amino acids for the first time. It is found that these DESs exhibit upper critical solution temperature (UCST)-type phase behavior in water, and their phase transition temperature is related with the pK_a values of HBAs and HBDs as well as the hydrophobicity of HBDs. The UCST-type phase separation process is investigated by dynamic light scattering (DLS), FT-IR spectroscopy and temperature-variable ¹H NMR in details, and the stability of the DESs in water is also examined Interestingly, these UCST-type DESs/water systems are applicable to selective separation of aromatic amino acids. The separation factor between L-tryptophan and L-tyrosine as well as between L-tryptophan and L-phenylalanine can reach up to 476.1 and 87.9, resp., which is about 20 and 19 times that reported in ionic liquids-based extraction solvents.

Separation and Purification 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 C10H18O4, SDS of cas: 645-56-7.

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

Li, Dan published the artcileDesymmetrization Process by Mg(II)-Catalyzed Intramolecular Vinylogous Michael Reaction, Recommanded Product: 4-Propylphenol, the publication is Organic Letters (2020), 22(23), 9229-9233, database is CAplus and MEDLINE.

Chiral magnesium catalyzed intramol. vinylogous Michael reaction of novel cyclohexadienones via a desymmetrization process is reported. (R)-BINOL derived ligand and an achiral amide were employed in the current in situ generated magnesium catalyst, giving the corresponding hydrogenated benzofuranone skeletons in good to excellent enantioselectivities with high yields. This simple and efficient strategy could be utilized for the synthesis of aromatized α,β-unsaturated ester and Br-substituted hydrogenated benzofuranone in good yields under mild conditions.

Organic 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, Recommanded Product: 4-Propylphenol.

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

Guo, Xuan published the artcileHydro-deoxygenation at atmospheric pressure converts the phenolic-rich pyrolysis liquid fraction into aromatics, Synthetic Route of 645-56-7, the publication is Journal of Environmental Management (2022), 114429, database is CAplus and MEDLINE.

Ambient pressure hydro-deoxygenation (HDO) of the phenolic-rich pyrolysis liquid fraction is a complex task due to the presence multiple phenolic compounds and light oxygenates. The phenolic-rich fraction differs from the overall pyrolysis liquid, known to be prone to re-polymerization and coking in the reactor or of the catalyst. In the present research, hydro-deoxygenation of oxygen-containing compounds in the phenolic fraction over Mo-based catalysts was carried out for the first time. It was found that Mo-based catalysts can successfully upgrade the phenolics into aromatics, the conversion rate was nearly 100%. The small amount of light oxygenates in the phenolic-rich fraction had no obvious effect on the hydro-deoxygenation reaction, the phenolic conversion was more than 95%. After assessing the performance for a representative phenolic model compound, the reaction was also successfully carried out on the phenolic fraction of the real pyrolysis liquid It can be concluded that the catalysts can also be used for the HDO of the real pyrolysis liquid fraction at atm. pressure.

Journal of Environmental Management 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, Synthetic Route of 645-56-7.

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

Guo, Yi-lin published the artcileStudy on the characteristic of β-O-4 lignin polymer model compound fast pyrolysis catalyzed by K⁺, Ca²⁺, Fe²⁺, HPLC of Formula: 645-56-7, the publication is Gongcheng Rewuli Xuebao (2021), 42(12), 3073-3082, database is CAplus.

In order to reveal the mechanism of the influence of C_α functional groups and metal ions on the pyrolysis process of lignin, this study synthesized two β-O-4 type lignin polymer model compounds (Ca connected to carbonyl and hydroxyl functional groups resp.), and carried out Py-GC-MS fast pyrolysis experiment catalyzed by acetate at different temperatures (500°C, 650°C, 800°C) and different metal ions(K⁺, Ca²⁺, Fe²⁺). The exptl. results show that the C_β-O bond is easier to break than the C_α-C_β bond. The homolytic reaction produces more phenolic compounds; the addition of K⁺, Ca²⁺, Fe²⁺ metal ions can reduce the temperature required during pyrolysis, promote the generation of phenolic products, inhibited the formation of anisyl (aldehyde) and acetophenyl products.

Gongcheng Rewuli Xuebao 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, HPLC of Formula: 645-56-7.

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

Ambreen, Samina published the artcileNovel degradation pathways for Chlorpyrifos and 3, 5, 6-Trichloro-2-pyridinol degradation by bacterial strain Bacillus thuringiensis MB497 isolated from agricultural fields of Mianwali, Pakistan, Name: 4-Propylphenol, the publication is Pesticide Biochemistry and Physiology (2021), 104750, database is CAplus and MEDLINE.

Over use of organophosphate pesticides including Chlorpyrifos (CPF) has led to contamination of soil and water resources, resulting in serious health problems in humans along with other non-target organisms. The current study was aimed to investigate Chlorpyrifos as well as 3, 5, 6-Trichloro-2-pyridinol (TCP) biodegradation tendency of bacterial strain Bacillus thuringiensis MB497 isolated from wheat/cotton fields of Dera Saleemabad, Mianwali, Pakistan, having a history of heavy Organophosphate pesticides application. HPLC anal. revealed almost 99% degradation of the spiked CPF (200 mg L^-1) in M-9 broth, soil slurry and soil microcosm by MB497 after 9 days of incubation. Strain MB497 was also able to degrade and transform TCP (28 mg L^-1), up to 90.57% after 72 h of incubation in M-9 broth. A novel compound Di-iso-Pr methanephosphonate along with known products of 3, 5, 6-Trichloro-2-pyridinol (TCP), Di-Et thiophospsphate and Phosphorothioic acid were detected as metabolites of CPF by GCMS anal. Three novel metabolites of TCP (p-Pr phenol, 2-Ethoxy-4, 4, 5, 5-tetramethyloxazoline and 3-(2, 4, 5-Trichlorophenoxy)-1-propyne) were identified after 72 h. Based on these metabolites, new/amended metabolic pathways for CPF and TCP degradation in these bacteria has been suggested.

Pesticide Biochemistry and Physiology 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, Yitao published the artcileDesign, synthesis, and biological evaluation of phenyloxadiazole derivatives as potential antifungal agents against phytopathogenic fungi, Recommanded Product: 4-Propylphenol, the publication is Monatshefte fuer Chemie (2021), 152(1), 121-135, database is CAplus.

A novel series of picarbutrazox-inspired oxadiazole hybrids I (R = 4-cyanophenyl, 3,5-dibromophenyl, 3,5-dichloro-4-(3-methoxyphenoxy)phenyl, etc.) was synthesized and the derivatives’ biol. activity against phytopathogenic fungi was investigated. The mols. were designed by retaining the active fragment of tetrazolyl phenyloxime ether of lead compound picarbutrazox, while introducing the potentially active oxadiazole-derived fragment I. Bioassay results revealed that some of the title compounds showed potent in vivo antifungal activities to control cucumber downy mildew. Therefore, this novel oxadiazole phenyloxadiazole derivative I can be used as a potential antifungal agent to control cucumber downy mildew and other phytopathogenic fungi for crop protection.

Monatshefte fuer Chemie 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

Guo, Dengkang published the artcileModification mechanism of plantation wood via grafting epoxy monomers onto cell walls, Computed Properties of 645-56-7, the publication is Wood Science and Technology (2022), 56(3), 813-831, database is CAplus.

The range of application for fast-growing plantation wood is limited by its dimensional instability, susceptibility to biodegradation and low mech. strength. In this study, a novel method based on in situ reaction of a hydrophilic epoxy monomer (1,4-butanediol diglycidyl ether) in the wood cell walls was proposed to improve the performance of plantation wood. The effects of curing agent on the reaction mechanism and performance of treated wood were discussed in detail. The results demonstrated that after curing using Me hexahydro phthalic anhydride (MHHPA), an epoxy oligomer with a higher mol. weight and superior water resistance was formed inside the wood cell wall compared to curing with the 2-methylimidazole (2-MI). Moreover, the epoxy group was able to react with alc. and phenolic hydroxyl in wood through 2-MI catalysis resulting in a higher grafting ratio. After the modification reaction, notable improvements were observed in the dimensional stability (anti-swelling efficiency of more than 65%), fungal (Gloeophyllum trabeum) decay resistance (weight loss of < 6%) and compressive strength (increased by 17%) of the wood.

Wood Science and 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, Computed Properties of 645-56-7.

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

Chen, Ting-Sheng published the artcileEffects of mesopore introduction on the stability of zeolites for 4-iso-Propylphenol dealkylation, Name: 4-Propylphenol, the publication is Catalysis Today (2021), 40-49, database is CAplus.

Low rank coal- and biomass-derived liquids generally contain a mixture of alkylphenols, which can be dealkylated over zeolites into phenol as a basic chem. Zeolites with different pore structures were evaluated for the dealkylation of 4-iso-propylphenol as a model alkylphenol, among which HZSM-5 and HMCM-22 displayed the highest phenol selectivity above 96%. However, HZSM-5 deactivated fastest among the catalysts due to coke deposition. Thus, mesopores were introduced by desilication into HZSM-5 catalysts to improve the catalytic stability. The mesopore incorporation enhanced the connectivity of the micropores with the crystal surface, and shortened the diffusion lengths. Coke location anal. revealed that micropore occlusion by the coke shell occurred on the parent HZSM-5, whereas the acid sites in the desilicated catalysts were more accessible for fully utilization, even though the coke mainly deposited in the micropores. Furthermore, the coke on the desilicated HZSM-5 displayed a lower graphitization degree.

Catalysis Today 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