Category: alcohols-buliding-blocks

Shinoda, Kozo published the artcilePrinciples of attaining very large solubilization (microemulsion): inclusive understanding of the solubilization of oil and water in aqueous and hydrocarbon media, Recommanded Product: 3-((2-Ethylhexyl)oxy)propane-1,2-diol, the publication is Journal of Physical Chemistry (1984), 88(21), 5126-9, database is CAplus.

It is intrinsically important to change the hydrophile-lipophile balance (HLB) of surfactant mixture continuously by various devices in order to attain a large solubilization or ultimately complete mixing of hydrocarbon and H₂O with less surfactant. The maximum solubilization of hydrocarbon (or H₂O) was observed close to the surfactant phase separation at which the hydrophile-lipophile property of a surfactant mixture balances for a given system. The relative solubilities of H₂O and oil in the surfactant phase change with the HLB of a surfactant mixture When the hydrophile-lipophile property of a surfactant is balanced, 3 phases, i.e., H₂O, surfactant, and oil, coexist at low surfactant concentration When it is hydrophilic the solubility of water in the surfactant phase is infinite and an aqueous solubilized micellar solution + oil system is obtained. When it is lipophilic the solubility of oil in the surfactant phase is infinite and a reversed micellar solution of hydrocarbon + water system is obtained. These conceptual interpretations on the solubilization of oil and water in surfactant aggregates were embodied on the phase diagrams presented. The devices of cosurfactants, surfactants, and their combinations yielded very large solubilization. The hydrophile-lipophile balance (HLB) of a surfactant is certainly a functions of various variables such as surfactant composition, temperature, valence of the counterions, salt concentration, etc. It is argued that the HLB of a surfactant in the system and the HLB number of the surfactant should not be confused.

Journal of Physical Chemistry published new progress about 70445-33-9. 70445-33-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is 3-((2-Ethylhexyl)oxy)propane-1,2-diol, and the molecular formula is C7H16ClNO2, Recommanded Product: 3-((2-Ethylhexyl)oxy)propane-1,2-diol.

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

van Dyck, Jeroen F. published the artcileNative mass spectrometry for the characterization of structure and interactions of membrane proteins, SDS of cas: 85618-21-9, the publication is Methods in Molecular Biology (New York, NY, United States) (2017), 205-232, database is CAplus and MEDLINE.

Over the past years, native mass spectrometry and ion mobility have grown into techniques that are widely applicable to the study of aspects of protein structure. More recently, it has become apparent that this approach provides a very promising avenue for the investigation of integral membrane proteins in lipid or detergent environments. In this chapter, we discuss applications of native mass spectrometry and ion mobility in membrane protein research-what is important to take into consideration when working with membrane proteins, and what the requirements are for sample preparation for native mass spectrometry. Furthermore, we will discuss the types of information provided by the measurements, including the oligomeric state, subunit composition and stoichiometry, interactions with detergents or lipids, conformational transitions, and the binding and structural effect of ligands and drugs.

Methods in Molecular Biology (New York, NY, United States) published new progress about 85618-21-9. 85618-21-9 belongs to alcohols-buliding-blocks, auxiliary class Tetrahydropyran,Chiral,sulfides,Alcohol, name is (2R,3S,4S,5R,6S)-2-(Hydroxymethyl)-6-(octylthio)tetrahydro-2H-pyran-3,4,5-triol, and the molecular formula is C5H10O2S, SDS of cas: 85618-21-9.

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

Neumeyer, Markus published the artcileControlling the Substitution Pattern of Hexasubstituted Naphthalenes by Aryne/Siloxyfuran Diels-Alder Additions: Regio- and Stereocontrolled Synthesis of Arizonin C1 Analogs, HPLC of Formula: 17877-23-5, the publication is European Journal of Organic Chemistry (2017), 2017(20), 2883-2915, database is CAplus.

3,4-Dimethoxybenz-1-yne and 2-siloxylated furans without or with a bromine atom at C-3 undergo Diels-Alder reactions with orientational selectivity. Hydrolysis furnished a bromine-free or a bromine-containing naphthalene, resp. Bromination of the former provided a regioisomer of the latter. Either of the two compounds was processed to give a variety of unnatural naphthoquinonopyrano-γ-lactones. This occurred by a succession of (1) Heck coupling, (2) asym. dihydroxylation, (3) oxa-Pictet-Spengler cyclization, and (4) oxidation The fifteen monomeric naphthoquinonopyrano-γ-lactone structures that we prepared resemble the natural product (-)-arizonin C1 (I) or its C-5 epimer. Accordingly, they represent hexasubstituted naphthalenes likewise. The sixteenth naphthoquinonopyrano-γ-lactone that we synthesized is a kind of dimer. Its moieties are bridged differently than those in naturally occurring naphthoquinonopyrano-γ-lactone dimers.

European Journal of Organic Chemistry published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, HPLC of Formula: 17877-23-5.

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

Koroleva, Sofia V. published the artcileMolecular Thermodynamic Modeling of the Specific Effect of Salt on the Aggregation of Nonionic Surfactants, Recommanded Product: (2R,3S,4S,5R,6S)-2-(Hydroxymethyl)-6-(octylthio)tetrahydro-2H-pyran-3,4,5-triol, the publication is Journal of Chemical & Engineering Data (2020), 65(3), 987-992, database is CAplus.

The specific chem. of added salt has a strong effect on the aggregation of surfactants. Although the mol. mechanism of this effect is still debated in the literature and there is no generally accepted quant. theory, substantial progress has recently been achieved in the mol. thermodn. modeling of ion-specific effects for solutions of ionic surfactants. In this work, we extend our previous aggregation model of ionic surfactants to solutions of nonionic surfactants in the presence of salts. Within this model, the specificity of ions is reflected by the difference in ionic diameters, the dispersion interaction with the micelle, and an effective parameter δ_± that takes into account the hydration/dehydration of an ion in the micellar corona and is specific to every ion-surfactant head pair. The effect of specific salt on the hydrophobic contribution to the aggregation free energy is described via the Setchenov salting-out constants We apply the model for sugar-based surfactants: n-alkyl glucosides and N-acyl-N-methylglucosides. This choice is motivated by the importance of this family of surfactants in biotechnol. We report the set of model parameters, including the Setchenov constants, for the surfactants in this family in combination with a number of 1:1 salts and illustrate good performance of the model in the description of the specific effect of added salt on the critical micelle concentration (CMC) and the growth of micellar aggregates.

Journal of Chemical & Engineering Data published new progress about 85618-21-9. 85618-21-9 belongs to alcohols-buliding-blocks, auxiliary class Tetrahydropyran,Chiral,sulfides,Alcohol, name is (2R,3S,4S,5R,6S)-2-(Hydroxymethyl)-6-(octylthio)tetrahydro-2H-pyran-3,4,5-triol, and the molecular formula is C14H28O5S, Recommanded Product: (2R,3S,4S,5R,6S)-2-(Hydroxymethyl)-6-(octylthio)tetrahydro-2H-pyran-3,4,5-triol.

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

Ryzhkov, O. G. published the artcileInterrelation of the structure and properties of mono- and dialkylpyrocatechols, Related Products of alcohols-buliding-blocks, the publication is Khimiya Tverdogo Topliva (Leningrad) (1975), 154-9, database is CAplus.

Alkylation of pyrocatechol, by olefins (e.g., propene trimer and diisobutylene) and alcs. (e.g., Me2CHCH2OH, Me2CHCH2CH2OH), catalyzed by cationite KU 2, gave 3- and 4-monoalkyl and 3,5-dialkyl derivatives; product compositions were determined by uv, ir, and thin-layer chromatog. Ionization constants of the monoalkyl derivatives were determined

Khimiya Tverdogo Topliva (Leningrad) published new progress about 1139-46-4. 1139-46-4 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Phenol, name is 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol, and the molecular formula is C14H22O2, Related Products of alcohols-buliding-blocks.

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

Perina, Dragutin published the artcileCharacterization of Nme5-like gene/protein from the red alga Chondrus crispus, Safety of Triisopropanolamine, the publication is Marine Drugs (2020), 18(1), 13, database is CAplus and MEDLINE.

The Nme gene/protein family of nucleoside diphosphate kinases (NDPK) was originally named after its member Nm23-H1/Nme1, the first identified metastasis suppressor. Human Nme proteins are divided in two groups. They all possess nucleoside diphosphate kinase domain (NDK). Group I (Nme1-Nme4) display a single type NDK domain, whereas Group II (Nme5-Nme9) display a single or several different NDK domains, associated or not associated with extra-domains. Data strongly suggest that, unlike Group I, none of the members of Group II display measurable NDPK activity, although some of them autophosphorylate. The multimeric form is required for the NDPK activity. Group I proteins are known to multimerize, while there are no data on the multimerization of Group II proteins. The Group II ancestral type protein was shown to be conserved in several species from three eukaryotic supergroups. Here, we analyzed the Nme protein from an early branching eukaryotic lineage, the red alga Chondrus crispus. We show that the ancestral type protein, unlike its human homolog, was fully functional multimeric NDPK with high affinity to various types of DNA and dispersed localization throughout the eukaryotic cell. Its overexpression inhibits both cell proliferation and the anchorage-independent growth of cells in soft agar but fails to deregulate cell apoptosis. We conclude that the ancestral gene has changed during eukaryotic evolution, possibly in correlation with the protein function.

Marine Drugs published new progress about 122-20-3. 122-20-3 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment, name is Triisopropanolamine, and the molecular formula is C9H21NO3, Safety of Triisopropanolamine.

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

Jafarirad, Saeed published the artcileEffect of the green synthesized rGO and Mg/rGO nanocomposites on the phytochemical assay, toxicity, and metabolism of Mentha longifolia in vitro cultures, SDS of cas: 106-25-2, the publication is Environmental Science and Pollution Research (2022), 29(30), 46243-46258, database is CAplus and MEDLINE.

Reduced graphene oxide (rGO) and Mg/rGO nanocomposites (NCs) were prepared by an eco-friendly technique using Rosa canina fruit extract Physicochem. properties and cytotoxicity to Mentha longifolia in vitro cultures of these nanomaterials were examined by using XRD, FESEM, EDX, FT-IR, DLS/zeta potential, UV-Visible, and GC-MS techniques. The characterization techniques confirmed the synthesis of rGO and Mg/rGO NCs with particle sizes less than 20 nm (based on FESEM). In accordance to the biol. measurements, rGO showed in vitro cytotoxicity to M. longifolia shoot cultures. Mg/rGO NCs showed no significant difference in the growth parameters except for a decrease in the shoot number at the concentrations of 50 and 150 mg/L and a decrease in the length of the tallest root at the concentrations of 100 and 150 mg/L, however efficiently improved the photosynthetic pigment contents. The phytochem. assay depicted that the total content of volatile compounds was increased in the treated cultures with 25, 50, and 100 mg/L of rGO and Mg/rGO NCs in comparison to the control. Generally, the more oxygenated and hydrocarbon sesquiterpenes were observed in the cultures treated with 25 and 100 mg/L of rGO and 25 and 50 mg/L of Mg/rGO NCs.

Environmental Science and Pollution Research published new progress about 106-25-2. 106-25-2 belongs to alcohols-buliding-blocks, auxiliary class Natural product, name is cis-3,7-Dimethyl-2,6-Octadien-1-Ol, and the molecular formula is C10H18O, SDS of cas: 106-25-2.

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