Tag: M.W=100-150

Das, Kalicharan published the artcilePhosphine-Free Well-Defined Mn(I) Complex-Catalyzed Synthesis of Amine, Imine, and 2,3-Dihydro-1H-perimidine via Hydrogen Autotransfer or Acceptorless Dehydrogenative Coupling of Amine and Alcohol, SDS of cas: 111-87-5, the main research area is manganese catalyzed dehydrogenative coupling aryl amine benzyl alc; crystal structure thioalkylaminopyridyl manganese cation complex; mol structure thioalkylaminopyridyl manganese cation complex; perimidine benzo preparation; stilbene amino preparation; resveratrol derivative preparation.

The application of nontoxic, earth-abundant transition metals in place of costly noble metals is a paramount goal in catalysis and is especially interesting if the air- and moisture-stable ligand scaffold was used. Herein, the authors report the synthesis of amines/imines directly from alc. and amines via H autotransfer or acceptorless dehydrogenation catalyzed by well-defined phosphine-free Mn complexes. Both imines and amines can be obtained from the same set of alcs. and amines using the same catalyst, only by tuning the reaction conditions. The amount and nature of the base are a highly important aspect for the observed selectivity. Both the primary and secondary amines were employed as substrates for the N-alkylation reaction. As a highlight, the authors showed the chemoselective synthesis of resveratrol derivatives Also, the Mn-catalyzed dehydrogenative synthesis of structurally important 2,3-dihydro-1H-perimidines also was demonstrated. D. functional theory calculations were also carried out to model the reaction path and to calculate the reaction profile.

Organometallics published new progress about Alkylation. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Pandey, Bedraj published the artcileSelective Ketone Formations via Cobalt-Catalyzed β-Alkylation of Secondary Alcohols with Primary Alcohols, Product Details of C8H18O, the main research area is ketone preparation cobalt catalyst beta alkylation secondary primary alc.

A homogeneous cobalt-catalyzed β-alkylation of secondary alcs. with primary alcs. to selectively synthesize ketones via acceptorless dehydrogenative coupling is reported for the first time. Notably, this transformation is environmentally benign and atom economical with water and hydrogen gas as the only byproducts.

Organic Letters published new progress about Alkylation. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Product Details of C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Howells, Rachel L. published the artcileSynthesis of Novel Pyrazine-Substituted-1H-Pyrrole-2-carboxamides and Related Tethered Heterocycles, Name: 2,2-Dimethoxyethanamine, the main research area is pyrazinyl pyrrole carboxamide preparation; fused bicyclic compound preparation.

The synthesis of a 4-(pyrazin-2-yl)-1H-pyrrole-2-carboxamide I and several fused bicyclic analogs, e.g., II all using standard procedures (SNAr, borylation, C-C cross couplings, hydrolysis, amide bond formation, cyclization, halogenation, and alkylation) from readily available starting materials is reported. The synthetic sequences range from 4-12 steps per final compound, with yields of isolated intermediates ranging from 20 to �00%.

Synthesis published new progress about Alkylation. 22483-09-6 belongs to class alcohols-buliding-blocks, name is 2,2-Dimethoxyethanamine, and the molecular formula is C4H11NO2, Name: 2,2-Dimethoxyethanamine.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Stefanucci, Azzurra published the artcileIn Silico Identification of Tripeptides as Lead Compounds for the Design of KOR Ligands, SDS of cas: 111-87-5, the main research area is KOR ligand design tripeptide compound identification; antinociceptive effect; binding; k-opioid receptor; molecular modelling; peptides.

The kappa opioid receptor (KOR) represents an attractive target for the development of drugs as potential antidepressants, anxiolytics and analgesics. A robust computational approach may guarantee a reduction in costs in the initial stages of drug discovery, novelty and accurate results. In this work, a virtual screening workflow of a library consisting of � million mols. was set up, with the aim to find potential lead compounds that could manifest activity on the KOR. This in silico study provides a significant contribution in the identification of compounds capable of interacting with a specific mol. target. The main computational techniques adopted in this exptl. work include: (i) virtual screening; (ii) drug design and leads optimization; (iii) mol. dynamics. The best hits are tripeptides prepared via solution phase peptide synthesis. These were tested in vivo, revealing a good antinociceptive effect after s.c. administration. However, further work is due to delineate their full pharmacol. profile, in order to verify the features predicted by the in silico outcomes.

Molecules published new progress about Analgesics. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Lingzi published the artcileMetabolomics identifies a biomarker revealing in vivo loss of functional β-cell mass before diabetes onset, Recommanded Product: (S)-2-hydroxysuccinic acid, the main research area is diabetes beta cell mass metabolomics 1 5 anhydroglucitol liver.

Identification of individuals with decreased functional β-cell mass is essential for the prevention of diabetes. However, in vivo detection of early asymptomatic β-cell defect remains unsuccessful. Metabolomics has emerged as a powerful tool in providing readouts of early disease states before clin. manifestation. We aimed at identifying novel plasma biomarkers for loss of functional β-cell mass in the asymptomatic prediabetes stage. Nontargeted and targeted metabolomics were applied in both lean β-Phb2-/- (β-cell-specific prohibitin-2 knockout) mice and obese db/db (leptin receptor mutant) mice, two distinct mouse models requiring neither chem. nor dietary treatments to induce spontaneous decline of functional β-cell mass promoting progressive diabetes development. Nontargeted metabolomics on β-Phb2-/- mice identified 48 and 82 significantly affected metabolites in liver and plasma, resp. Machine learning anal. pointed to deoxyhexose sugars consistently reduced at the asymptomatic prediabetes stage, including in db/db mice, showing strong correlation with the gradual loss of β-cells. Further targeted metabolomics by gas chromatog.-mass spectrometry uncovered the identity of the deoxyhexose, with 1,5-anhydroglucitol displaying the most substantial changes. In conclusion, this study identified 1,5-anhydroglucitol as associated with the loss of functional β-cell mass and uncovered metabolic similarities between liver and plasma, providing insights into the systemic effects caused by early decline in β-cells.

Diabetes published new progress about Biomarkers. 97-67-6 belongs to class alcohols-buliding-blocks, name is (S)-2-hydroxysuccinic acid, and the molecular formula is C4H6O5, Recommanded Product: (S)-2-hydroxysuccinic acid.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Aghaei, Hamidreza published the artcileUse of H3PO4/ZrO2-TiO2-surfactant mixed oxide for catalytic vapor-phase dehydration of 1-octanol, SDS of cas: 111-87-5, the main research area is octanol phosphoric acid zirconium titanium dioxide surfactant dehydration catalyst.

Catalytic dehydration of 1-octanol over H3PO4/ZrO2-TiO2-surfactant (H3PO4/ZTS) mixed oxides at 350°C for production of 1-octene was investigated. ZrO2-TiO2 (ZT) with Zr:Ti molar ratio = 1:1 was prepared with and without cetylpyridinium bromide surfactant and modified by different concentration of H3PO4. These catalysts were characterized by several methods such as XRD, BET, pyridine adsorption, and NH3-TPD. The prepared catalysts with surfactant showed better selectivity and activity than the prepared catalysts without surfactant for 1-octene synthesis. Maximum selectivity to 1-octene in 1-octanol dehydration was attained over 15 weight% H3PO4/ZTS, while maximum conversion of 1-octanol with lower selectivity to 1-octene was achieved over 35 weight% H3PO4/ZTS. At 350°C and with WHSV 1.978 h-1, the maximum conversion of 1-octanol over 15 weight% H3PO4/ZTS was 68.8%, with 48.3% selectivity to 1-octene.

Reaction Kinetics, Mechanisms and Catalysis published new progress about Adsorption. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, SDS of cas: 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lee, Cheng Hao published the artcileEffect of reverse micelle-encapsulated reactive dyes agglomeration in dyeing properties of cotton, Application of n-Octanol, the main research area is reverse micelle encapsulated reactive dye agglomeration dyeing cotton.

Reverse micelles using nonionic poly(ethyleneglycol) (PEG)-based surfactant as building block were introduced to encapsulate reactive dye for cotton dyeing. The morphol. transition of reactive dyes from well-dispersive spherical form into highly agglomerated form via various surfactant-to-co-surfactant molar ratios and surfactant-to-water molar ratios have been preliminary investigated. The dyeing properties of cotton has been analyzed in terms of dispersion of reverse micelle structure from transmission electron microscopy, identification of chem. signatures of dye-cotton interaction from Raman spectroscopy, color strength and relative levelness. The reverse micellar structures under both highly dispersed and agglomerated forms are in good agreement with color strength and levelness data. The optimization of surfactant conditions can be considered as major parameters for investigating the quality of cotton dyeing including color strength and leveling conditions.

Dyes and Pigments published new progress about Adsorption. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Application of n-Octanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bergfreund, Jotam published the artcileSurfactant Adsorption to Different Fluid Interfaces, Category: alcohols-buliding-blocks, the main research area is surfactant adsorption fluid interface.

Surfactant adsorption to fluid interfaces is ubiquitous in biol. systems, industrial applications, and scientific fields. Herein, we unravel the impact of the hydrophobic phase (air and oil) and the role of oil polarity on the adsorption of surfactants to fluid interfaces. We investigated the adsorption of anionic (sodium dodecyl sulfate), cationic (dodecyltrimethylammonium bromide), and non-ionic (polyoxyethylene-(23)-monododecyl ether) surfactants at different interfaces, including air and oils, with a wide range of polarities. The surfactant-induced interfacial tension decrease, called the interfacial pressure, correlates linearly with the initial interfacial tension of the clean oil-water interface and describes the exptl. results of over 30 studies from the literature. The higher interfacial competition of surfactant and polar oil mols. caused the number of adsorbed mols. at the interface to drop. Further, we found that the critical micelle concentration of surfactants in water correlates to the solubility of the oil mols. in water. Hence, the nature of the oil affects the adsorption behavior and equilibrium state of the surfactant at fluid interfaces. These results broaden our understanding and enable better predictability of the interactions of surfactants with hydrophobic phases, which is essential for emulsion, foam, and capsule formation, pharmaceutical commodities, cosmetics, and many food products.

Langmuir published new progress about Adsorption. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Santibanez, Luis published the artcileCuII- and CoII-based MOFs: {[La2Cu3(μ-H2O)(ODA)6(H2O)3]·3H2O}n and {[La2Co3(ODA)6(H2O)6]·12H2O}n. The relevance of physicochemical properties on the catalytic aerobic oxidation of cyclohexene, Application In Synthesis of 110-99-6, the main research area is lanthanum copper cobalt cyclohexene catalytic aerobic oxidation pore size.

The aerobic oxidation of cyclohexene was done using the heterometallic metal organic frameworks (MOFs) {[La2Cu3(μ-H2O)(ODA)6(H2O)3]·3H2O}n and {[La2Co3(ODA)6(H2O)6]·12H2O}n (LaCoODA) (2) as catalysts, in solvent free conditions (ODA, oxydiacetic acid). After 24 h of reaction, the catalytic system showed that LaCoODA had a better catalytic performance than that of LaCuODA (conversion 85% and 67%). The structures of both catalysts were very similar, showing channels running along the c axis. The physicochem. properties of both MOFs were determined to understand the catalytic performance. The Langmuir surface area of LaCoODA was shown to be greater than that of LaCuODA, while the acid strength and acid sites were greater for LaCuODA. On the other hand, the redox potential of the active sites was related to CoII/CoIII in LaCoODA and CuII/CuI in LaCuODA. Therefore, it is concluded that the Langmuir surface area and the redox potentials were more important than the acid strength and acid sites of the studied MOFs, in terms of the referred catalytic performance. Finally, the reaction conditions were also shown to play an important role in the catalytic performance of the studied systems. Especially, the type of oxidant and the way to supply it to the reaction medium influenced the catalytic results.

Catalysts published new progress about Adsorption. 110-99-6 belongs to class alcohols-buliding-blocks, name is 2,2′-Oxydiacetic acid, and the molecular formula is C4H6O5, Application In Synthesis of 110-99-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Du, Cheng published the artcileDirect Surface Modification of Graphitic C3N4 with Porous Organic Polymer and Silver Nanoparticles for Promoting CO2 Conversion, COA of Formula: C8H14O, the main research area is surface graphitic carbon nitride porous organic polymer silver nanoparticle.

The development of novel heterogeneous catalysts for converting CO2 into fine chems. under mild conditions is extremely attractive but challenging. In this study, graphitic carbon nitride modified by porous organic polymer (POP) and highly dispersed Ag nanoparticles (Ag/POP@g-C3N4) was prepared as a highly efficient heterogeneous catalyst for CO2 conversion for the first time. The POP modifying g-C3N4 remarkably increases sp. surface area and nitrogen species (N-H and C=N); as a result, the abundant porous structures together with anchoring sites allow tight immobilization and homogeneous dispersion of Ag nanoparticles. Benefiting from the effective incorporation, Ag/POP@g-C3N4 exhibited superior catalytic performance for the carboxylative cyclization of propargyl alcs. with CO2 under mild conditions. From the perspective of CO2 adsorption and controlled 1H NMR analyses, a plausible synergistic catalytic mechanism was proposed for the adsorption and activation of CO2 in combination with Ag/POP@g-C3N4 and 1,8-diazabicyclo[5.4.0]undec-7-chin (DBU). Constructing a heterogeneous catalyst by surface modification was proposed to efficiently promote green and sustainable conversion of CO2 into fine chems.

ACS Sustainable Chemistry & Engineering published new progress about Adsorption. 107-54-0 belongs to class alcohols-buliding-blocks, name is 3,5-Dimethylhex-1-yn-3-ol, and the molecular formula is C8H14O, COA of Formula: C8H14O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts