Tag: M.W=50-100

Vervald, Alexey published the artcileDifference in deprotonation for oxygen-containing groups on sp2 and sp3 carbons, Synthetic Route of 584-02-1, the main research area is phenol benzoic acid nanodiamond deprotonation zeta potential.

Does the hybridization of the surface of carbon nanoparticles (CNPs) affect the properties of the surface carboxyl and hydroxyl groups and the features of their deprotonation in water. To answer these questions in this work the structures of graphite-and diamond-like carbon cells with OH and COOH groups optimized by the DFT method were studied. It was found that in the same suspensions the OH and COOH groups deprotonate easier being on carbon with sp2 hybridization rather than sp3. Theor. estimates have shown that in aqueous suspensions of CNPs, “”isolated”” carboxyl COOH groups on sp2/sp3 hybridized carbon sites have pKa in the ranges of 3.5-4.5/4.5-5, and the hydroxyl OH groups – in the ranges of 8.5-10/15-18, resp. The conclusions made on the basis of theor. calculations about the features of deprotonation of surface groups of CNPs are exptl. confirmed by the changes of the zeta-potentials of oxidized detonation nanodiamonds with the change of the pH of the environment.

Fullerenes, Nanotubes, and Carbon Nanostructures published new progress about Aggregates. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Synthetic Route of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Zhou, Shenghui published the artcileZirconium-lignosulfonate polyphenolic polymer for highly efficient hydrogen transfer of biomass-derived oxygenates under mild conditions, Category: alcohols-buliding-blocks, the main research area is zirconium lignosulfonate polyphenolic polymer hydrogen transfer biomass oxygenate mild.

Both value-added utilization of low-rank renewable feedstocks to prepare catalytic materials and selective transformation of bioderived aldehydes are very attractive topics. Herein, lignosulfonate, a waste byproduct from the paper industry, was simply assembled with ZrCl4 under non-toxic hydrothermal conditions for scalable preparation of Zr-containing polyphenolic biopolymer catalysts (Zr-LS). Systematic characterizations indicated that the strong coordination between Zr4+ and phenolic hydroxyl groups in lignosulfonate led to the formation of strong Lewis acid-base couple sites (Zr4+-O2-) and porous inorganic-organic framework structure (mesopores centered at 6.1 nm), while the inherent sulfonic groups in lignosulfonate could serve as Bronsted acidic sites. The cooperative role of these versatile acid-base sites in Zr-LS afforded excellent catalytic performance for Meerwein-Ponndorf-Verley (MPV) reaction of a broad range of bioderived platform chems. under mild conditions (80 °C), especially of furfural (FF) to furfuryl alc. (FA), in quant. yields (96%) with high FA formation rate of 9600 μmol g-1 h-1 and TOF of 4.37 h-1. Kinetic studies revealed that the activation energy of the MPV reduction of FF was as low as 52.25 kJ/mol, accounting for the high reaction rate. Isotopic labeling experiments demonstrated direct hydrogen transfer from the α-C of 2-PrOH to the α-C of FF on acid-base sites was the rate-determining step. Moreover, Zr-LS showed good recyclability for at least seven reaction cycles.

Applied Catalysis, B: Environmental published new progress about Adsorption. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

OReilly, Matthew C. published the artcileDiscovery-Based Bromination of Alcohols: An Organic Chemistry Experiment Supporting Spectroscopic Analysis and Mechanistic Reasoning, Quality Control of 584-02-1, the main research area is isomeric alc bromination laboratory experiment.

The bromination of six isomeric alcs. is adapted to a discovery-based organic chem. laboratory experiment, whereby students are provided an alc. starting material and are charged with determining the product or product mixture produced using relevant spectroscopic data. The experiment solidifies NMR anal. skills while reinforcing the mechanistic reasoning that supports the study of organic reactions. The laboratory is highly customizable and can be adapted to align with available instrumentation to best meet the needs of students, and it has been successfully implemented at three sep. universities.

Journal of Chemical Education published new progress about Bromination. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Quality Control of 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

MacQueen, Blake published the artcileOptimum Reaction Conditions for 1,4-Anhydroerythritol and Xylitol Hydrodeoxygenation over a ReOx-Pd/CeO2 Catalyst via Design of Experiments, Related Products of alcohols-buliding-blocks, the main research area is anhydroerythritol xylitol hydrodeoxygenation ReO palladium Ceria catalyst.

In this study, we demonstrate that for the simultaneous hydrodeoxygenation (HDO) of 1,4-anhydroerythritol a comparable yield of THF is obtained at half the previously reported H2 pressure. The simultaneous hydrodeoxygenation was conducted using a heterogeneous ReOx-Pd/CeO2 catalyst. An L9 Taguchi design of experiment was enacted to elucidate the temperature, pressure, and catalyst loading effects on the yield of the HDO reaction by testing pressures ranging from 40 to 80 bar H2, temperatures of 100-180 °C, and Re loadings of 2-4 weight %. Our design showed that the yield of this reaction is significantly affected by the reaction temperature only. An L9 Taguchi design was conducted for xylitol simultaneous hydrodeoxygenation with pressures ranging from 5 to 10 bar H2, temperatures of 140-180 °C, and Re loadings of 2-4 weight %. The xylitol design elucidated the direct relation of pressure, and the inverse relation of temperature and catalyst loading, to yield with the optimal reaction condition being 140 °C and 10 bar H2.

Industrial & Engineering Chemistry Research published new progress about Deoxidation. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Daw, Prosenjit published the artcileSynthesis of Pyrazines and Quinoxalines via Acceptorless Dehydrogenative Coupling Routes Catalyzed by Manganese Pincer Complexes, Safety of 2-Aminobutan-1-ol, the publication is ACS Catalysis (2018), 8(9), 7734-7741, database is CAplus and MEDLINE.

Base-metal catalyzed dehydrogenative self-coupling of 2-amino alcs. to selectively form functionalized 2,5-substituted pyrazine derivatives is presented. Also, 2-substituted quinoxaline derivatives are synthesized by dehydrogenative coupling of 1,2-diaminobenzene and 1,2-diols. In both cases, water and hydrogen gas are formed as the sole byproducts. The reactions are catalyzed by acridine-based pincer complexes of earth-abundant manganese.

ACS Catalysis published new progress about 96-20-8. 96-20-8 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Alcohol, name is 2-Aminobutan-1-ol, and the molecular formula is C4H11NO, Safety of 2-Aminobutan-1-ol.

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

Rakhmatullina, L. Kh. published the artcileSynthesis of 2-pentanol, Category: alcohols-buliding-blocks, the publication is Khimiko-Farmatsevticheskii Zhurnal (1989), 23(3), 321-6, database is CAplus.

A review with 8 references including the following methods of 2-pentanol synthesis: (1) hydration of methylenecyclobutane, followed by hydrogenolysis of the 1-methylcyclobutanol obtained, (2) hydrogenolysis of 2-methylfuran along with hydrogenation of the 2-pentanone (I) formed, and (3) condensation of PrCO₂H with acetone, followed by hydrogenation of the I obtained.

Khimiko-Farmatsevticheskii Zhurnal published new progress about 20117-47-9. 20117-47-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic cyclic hydrocarbon,Alcohol, name is 1-Methylcyclobutan-1-ol, and the molecular formula is C5H10O, Category: alcohols-buliding-blocks.

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

Verevkin, Sergey P. published the artcileSustainable hydrogen storage: Thermochemistry of amino-alcohols as seminal liquid organic hydrogen carriers, COA of Formula: C4H11NO, the publication is Journal of Chemical Thermodynamics (2021), 106591, database is CAplus.

Amino-alcs. are considered for sustainable hydrogen storage systems based on catalytic peptide formation. Exptl. and theor. thermochem. studies of amino-alcs. have been performed, including vapor pressure measurements, combustion calorimetry, and quantum-chem. calculations The standard molar enthalpies of vaporization of amino-alcs. were calculated from the temperature dependence of the vapor pressures measured by the transpiration method. Energies of combustion for six amino-alcs. were measured using the high-precision combustion calorimetry. The available in the literature primary data on vapor pressures, enthalpies of vaporization, and enthalpies of formation of amino-alcs. were collected and evaluated. The exptl. standard molar gas-phase enthalpies of formation of amino-alcs. were derived from the evaluated results. The high-level G3B3, G3MP2, and G4 quantum-chem. methods were used to establish consistency of the exptl. and theor. results. The surprisingly low enthalpy of reaction of the reversible dehydrogenation of 2-amino-ethanol, calculated from the exptl. data, makes this liquid organic hydrogen carrier system (LOHC) promising for further optimization and development.

Journal of Chemical Thermodynamics published new progress about 96-20-8. 96-20-8 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Alcohol, name is 2-Aminobutan-1-ol, and the molecular formula is C15H16O3, COA of Formula: C4H11NO.

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

Bilgic, Gulbahar published the artcileSynthesis, structural, and electrochemical properties of boron-based ionic liquid, SDS of cas: 96-20-8, the publication is Ionics (2022), 28(7), 3289-3300, database is CAplus.

In the present work, a new boron-based room-temperature ionic liquid (BBRTIL) is reported. An ionic liquid based on the boron cation was synthesized by an easy metathesis procedure yielding clean products. The composition, thermal behavior, phys., and electrochem. properties of the BBRTIL were identified by NMR spectra (NMR), Fourier transform IR (FTIR) thermogravimetric anal. (TGA), linear sweep voltammetry (LSV), and cyclic voltammetry (CV), resp. NMR and FTIR have confirmed the structure formation of 0.3-0.4-mm-sized B₂O₃-based BBRTIL. Furthermore, the correlation between the electrochem. stability and the identified electrolyte equilibrium species was investigated via voltammetry. This procedure, in the future, could be an original alternative to the deposition of elemental boron through easy, one-step synthesis from high-temperature molten salt electrolysis.

Ionics published new progress about 96-20-8. 96-20-8 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Alcohol, name is 2-Aminobutan-1-ol, and the molecular formula is C4H11NO, SDS of cas: 96-20-8.

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

Boggu, Pulla Reddy published the artcileDiscovery of benzimidazole analogs as a novel interleukin-5 inhibitors, COA of Formula: C4H11NO, the publication is European Journal of Medicinal Chemistry (2019), 111574pp., database is CAplus and MEDLINE.

A series of novel ((hydroxyalkyl)aminomethyl)benzimidazole analogs I [n = 1, 2, 3, 4; R = H, tert-Bu, Ph, etc.; R¹ = H, cyclohexyl, 4-pyridinylmethyl, etc.] and II [R² = Ph, 4-methoxyphenyl, benzyl, 4-methoxybenzyl] were synthesized and evaluated for their IL-5 inhibitory activity using pro-B Y16 cell line. Among them, compound I [n = 1, R = Et, R¹ = H] (94.3% inhibition at 30 μM, IC₅₀ = 3.5 μM, cLogP = 4.132) and compound I [n = 1, R = cyclohexylemthyl, R¹ = H] (94.7% inhibition at 30 μM, IC₅₀ = 5.0 μM, cLogP = 6.253) showed the most potent inhibitory activity. The essential feature of SAR indicated that the chromenone ring can be replaced by a benzimidazole ring to maintain the inhibitory activity. In addition, the hydroxyethylaminomethyl group was suitable for the IL-5 inhibitory activity. Moreover, the hydrophobic substituents on carbon played an important role in the IL-5 inhibitory activity of these analogs. However, N-substituted analogs did not improve inhibitory activity. In addition, MTT assay of compounds I [n = 1; R = Et, cyclohexylmethyl; R¹ = H] with normal B lymphoblasts revealed that they had no significant effects on cell viability.

European Journal of Medicinal Chemistry published new progress about 96-20-8. 96-20-8 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Alcohol, name is 2-Aminobutan-1-ol, and the molecular formula is C4H11NO, COA of Formula: C4H11NO.

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

Bold, Christian P. published the artcileStudies toward the Synthesis of an Oxazole-Based Analog of (-)-Zampanolide, Related Products of alcohols-buliding-blocks, the publication is Organic Letters (2021), 23(6), 2238-2242, database is CAplus and MEDLINE.

Studies are described toward the synthesis of an oxazole-based analog I of (-)-zampanolide. Construction of (-)-dactylolide analog 22 was achieved via alc. II and acid III through esterification and Horner-Wadsworth-Emmons (HWE)-based macrocyclization; however, attempts to attach (Z,E)-sorbamide to I proved unsuccessful. The C(8)-C(9) double bond of the macrocycle was prone to migration into conjugation with the oxazole ring, which may generally limit the usefulness of zampanolide analogs with aromatic moieties as tetrahydropyran replacements.

Organic Letters published new progress about 57044-25-4. 57044-25-4 belongs to alcohols-buliding-blocks, auxiliary class Epoxides,Chiral,Aliphatic hydrocarbon chain,Alcohol, name is (R)-Oxiran-2-ylmethanol, and the molecular formula is C3H6O2, Related Products of alcohols-buliding-blocks.

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