Category: alcohols-buliding-blocks

Siezen, Roland J. published the artcilePermanent suppression of phase separation cataract in calf lens using amine modification agents, Recommanded Product: Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, the publication is Biochemical and Biophysical Research Communications (1985), 133(1), 239-47, database is CAplus and MEDLINE.

Low-temperature-induced opacification (cold cataract) of the nucleus of young mammalian lenses was associated with a phase separation of proteins in the lens cell cytoplasm. Calf lenses were treated with a variety of imidoesters and N-hydroxysuccinimide esters, which react specifically with amino groups. Many potent inhibitors of phase-separation cataract were identified which lower the opacification temperature by ≥6°. Lenses generally remained clear, colorless and soft. Furthermore, suppression of the cold-cataract temperature was permanent upon removal of excess reagent.

Biochemical and Biophysical Research Communications published new progress about 70539-42-3. 70539-42-3 belongs to alcohols-buliding-blocks, auxiliary class pyrrolidine,Ester,Amide,Inhibitor,Inhibitor, name is Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate, and the molecular formula is C7H14N4, Recommanded Product: Bis(2,5-dioxopyrrolidin-1-yl) O,O’-ethane-1,2-diyl disuccinate.

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

Amery, G. W. published the artcileSynthesis and identification of some N-methylated aminonitrophenols, Application In Synthesis of 14703-69-6, the publication is Journal of the Chemical Society [Section] C: Organic (1967), 1053-7, database is CAplus.

The synthesis of a number of new N-methyl and N,N-dimethylaminonitrophenols is described. Spectroscopy assisted in deducing the orientation of these compounds In particular, the position of the nitro group, relative to the OH group, can be clearly discerned by comparison of the spectrum of the hydroxynitroanilinium ion with those of the 3 nitrophenols. 26 references.

Journal of the Chemical Society [Section] C: Organic published new progress about 14703-69-6. 14703-69-6 belongs to alcohols-buliding-blocks, auxiliary class Amine,Benzene,Phenol, name is 3-(Methylamino)phenol, and the molecular formula is C7H9NO, Application In Synthesis of 14703-69-6.

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

Botubol-Ares, Jose Manuel published the artcileMethylene-Linked Bis-NHC Half-Sandwich Ruthenium Complexes: Binding of Small Molecules and Catalysis toward Ketone Transfer Hydrogenation, Formula: C10H12ClNO, the publication is Organometallics (2021), 40(6), 792-803, database is CAplus.

[Cp^*RuCl(COD)] reacts with LH₂Cl₂ (L = methanebis(3-methylimidazol-2-ylidene)) and LiBu in THF at 65° furnishing the bis-carbene derivative [Cp^*RuCl(L)] (2). This compound reacts with NaBPh₄ in MeOH under dinitrogen to yield the labile dinitrogen-bridged complex [{Cp^*Ru(L)}₂(μ-N₂)][BPh₄]₂ (4). The dinitrogen ligand in 4 is readily replaced by donor mols. leading to the corresponding cationic complexes [Cp^*Ru(X)(L)][BPh₄] (X = MeCN 3, H₂ (6), C₂H₄ (8a), CH₂CHCOOMe 8b, CHPh 9). Attempts to recrystallize 4 from MeNO₂/EtOH solutions gave the nitrosyl derivative [Cp^*Ru(NO)(L)][BPh₄]₂ (5), which was structurally characterized. The allenylidene complex [Cp^*Ru:C:C:CPh₂(L)][BPh₄] (10) was also obtained, and it was prepared by reaction of 2 with HCCC(OH)Ph₂ and NaBPh₄ in MeOH at 60°. 3, 4, And 6 are efficient catalyst precursors for the transfer hydrogenation of a broad range of ketones. The dihydrogen complex 6 proved particularly effective, reaching TOF values up to 455 h^-1 at catalyst loadings of 0.1% mol., with a high functional group tolerance on the reduction of a broad scope of aryl and aliphatic ketones to yield the corresponding alcs.

Organometallics published new progress about 1310357-40-4. 1310357-40-4 belongs to alcohols-buliding-blocks, auxiliary class Benzenes, name is 7-Chloro-2,3,4,5-tetrahydro-1H-benzo[b]azepin-5-ol, and the molecular formula is C10H12ClNO, Formula: C10H12ClNO.

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

Lim, Hyun-Hee published the artcileFlavor components in tobacco capsules identified through non-targeted quantitative analysis, HPLC of Formula: 106-25-2, the publication is Journal of Mass Spectrometry (2022), 57(2), e4811, database is CAplus and MEDLINE.

Tobacco flavors increase the attractiveness of a tobacco brand and ultimately promote addiction. Information about what flavor and how much flavor is in flavor capsules can provide an effective way to regulate tobacco flavor. In this study, 128 flavor chems. were identified and quantified by gas chromatog.-mass spectrometry using libraries and authentic standards Validation of the developed method was performed for interference, detection limits, calibration curves, accuracy, and precision. Menthol was the main ingredient in all capsules, and the carcinogenic pulegone was detected. Detected menthofuran, benzyl alc., geraniol, and eugenol cause toxic or severe irritation, and detected lactones can increase nicotine addiction by inhibiting nicotine metabolism in smokers. Margin of exposures for carcinogenic pulegone and non-carcinogenic menthol were well below safety thresholds, indicating a significant risk of inhalation exposure. It is desirable to prohibit the use of flavor capsules in consideration of human risk.

Journal of Mass Spectrometry 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, HPLC of Formula: 106-25-2.

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

Kim, Seung-Woo published the artcileNeuroprotective effect of triflusal and its main metabolite, 2-hydroxy-4-trifluoromethylbenzoic acid (HTB), in the postischemic brain, Application In Synthesis of 328-90-5, the publication is Neuroscience Letters (2017), 59-64, database is CAplus and MEDLINE.

2-Hydroxy-4-trifluoromethylbenzoic acid (HTB) is a metabolite of triflusal (TF), and has been reported to exert anti-inflammatory effect. In this study, the authors investigated whether HTB has a neuroprotective effect against ischemic brain injuries. We showed that i.v. administration of HTB (5 mg/kg) 30 min before or 1, 3, or 6 h after middle cerebral artery occlusion (MCAO) reduced brain infarct to 10.4 ± 3.3%, 16.9 ± 2.3%, 22.2 ± 1.5% and 40.7 ± 7.5%, resp., of that of treatment-naive MCAO controls, and the therapeutic time window extended to 9 h after MCAO (40.7 ± 7.5%). Furthermore, HTB suppressed infarct formation, protected motor activities, and ameliorated neurol. deficits more effectively than by TF or salicylic acid (SA). HTB markedly suppressed microglial activation and proinflammatory cytokines expressions in the postischemic brain and in BV2 cells and suppressed LPS-induced nitrite production by inhibiting IkB degradation In addition, HTB suppressed NMDA-induced neuronal cell death more effectively than TF or SA in primary cortical neuron cultures. Together, these results indicate that HTB has multi-modal protective effects against ischemic brain damage that encompass anti-inflammatory, anti-excitotoxicity, and anti-Zn²⁺-toxicity effects.

Neuroscience Letters published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C8H5F3O3, Application In Synthesis of 328-90-5.

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

Shehaj, Livia published the artcileSmall-Molecule Inhibitors of Haemophilus influenzae IgA1 Protease, SDS of cas: 30165-97-0, the publication is ACS Infectious Diseases (2019), 5(7), 1129-1138, database is CAplus and MEDLINE.

Newly identified, nontypable Haemophilus influenzae (H. influenza) strains represent a serious threat to global health. Due to the increasing prevalence of antibiotic resistance, virulence factors have emerged as potential therapeutic targets that would be less likely to promote resistance. IgA1 proteases are secreted virulence factors of many Gram-neg. human pathogens. These enzymes play important roles in tissue invasion as well as evasion of the immune response, yet there has been limited work on pharmacol. inhibitors. Here, we report the discovery of the first small mol., nonpeptidic inhibitors of H. influenzae IgA1 proteases. We screened over 47 000 compounds in a biochem. assay using recombinant protease and identified a hit compound with micromolar potency. Preliminary structure-activity relationships produced addnl. inhibitors, two of which showed improved inhibition and selectivity for IgA protease over other serine proteases. We further showed dose-dependent inhibition against four different IgA1 protease variants collected from clin. isolates. These data support further development of IgA protease inhibitors as potential therapeutics for antibiotic-resistant H. influenza strains. The newly discovered inhibitors also represent valuable probes for exploring the roles of these proteases in bacterial colonization, invasion, and infection of mucosal tissues.

ACS Infectious Diseases published new progress about 30165-97-0. 30165-97-0 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Thiadiazole,Alcohol, name is 4-Morpholino-1,2,5-thiadiazol-3-ol, and the molecular formula is C17H19N3O6, SDS of cas: 30165-97-0.

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

Kristensen, Mette published the artcileOptimization and validation of a derivatization method with boron trifluoride in ethanol for analysis of aromatic carboxylic acids in water, Synthetic Route of 86-48-6, the publication is Journal of Chromatography A (2019), 21-26, database is CAplus and MEDLINE.

Gas-chromatog. (GC) anal. of carboxylic acids is limited by the high polarity and low volatility of most of these compounds Boron trifluoride (BF₃) mediated alkylation reactions is one of the most commonly used derivatization methods for making carboxylic acids GC compatible. A semi-automated BF₃-EtOH (ethanol) derivatization method was optimized for comprehensive two-dimensional gas chromatog. high-resolution mass spectrometry (GC × GC-HR MS) anal. of carboxylic acids in solid phase extraction (SPE) extracts of oil-polluted water. The optimal derivatization method were found to be with addition of 300 μL BF₃-EtOH per 200 μL sample and reaction at 75° for 24 h. Derivatives of eight selected acids (aliphatic, mono- and diarom.) were stable over 12 h with relative standard deviations (RSDs) of 2.0-10.7%, the derivatization method was repeatable (RSDs of 3.2-17.2%), detection limits (DL) and limit of detections (LODs) was in the range of DL = 0.53-1.63 ppb and LOD = 0.19-2.51 ppb for pure acid standards, and DL = 0.18-3.41 ppb and LOD = 0.28-5.46 ppb for matrix matched acid standards Finally, the method was validated on the acidic fraction of a mixed anion-exchange SPE of oil polluted water. Thousands of degradation products from parent alkylated polycyclic aromatic hydrocarbons (PAHs) and aliphatic hydrocarbons, such as aliphatic acids and mono-, di-, and triarom. acids were analyzed by the applied method and compound groups were tentatively identified.

Journal of Chromatography A published new progress about 86-48-6. 86-48-6 belongs to alcohols-buliding-blocks, auxiliary class Organic Pigment,Natural product, name is 1-Hydroxy-2-naphthoic acid, and the molecular formula is C11H8O3, Synthetic Route of 86-48-6.

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

Cao, Sheng published the artcileSubstituent Effects on Oxidation-Induced Formation of Quinone Methides from Arylboronic Ester Precursors, Application In Synthesis of 25240-59-9, the publication is Chemistry – A European Journal (2013), 19(27), 9050-9058, database is CAplus and MEDLINE.

A series of arylboronic esters containing different aromatic substituents and various benzylic leaving groups (Br or N⁺Me₃Br^–) have been synthesized. The substituent effects on their reactivity with H₂O₂ and formation of quinone methide (QM) have been investigated. NMR spectroscopy and Et vinyl ether (EVE) trapping experiments were used to determine the reaction mechanism and QM formation, resp. QMs were not generated during oxidative cleavage of the boronic esters but by subsequent transformation of the phenol products under physiol. conditions. The oxidative deboronation is facilitated by electron-withdrawing substituents, such as aromatic F, NO₂, or benzylic N⁺Me₃Br^–, whereas electron-donating substituents or a better leaving group favor QM generation. Compounds containing an aromatic CH₃ or OMe group, or a good leaving group (Br), efficiently generate QMs under physiol. conditions. Finally, a quant. relationship between the structure and activity has been established for the arylboronic esters by using a Hammett plot. The reactivity of the arylboronic acids/esters and the inhibition or facilitation of QM formation can now be predictably adjusted. This adjustment is important as some applications may benefit and others may be limited by QM generation.

Chemistry – A European Journal published new progress about 25240-59-9. 25240-59-9 belongs to alcohols-buliding-blocks, auxiliary class Boronic acid and ester,Boronic Acids,Boronate Esters, name is 4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-ol, and the molecular formula is C6H13BO3, Application In Synthesis of 25240-59-9.

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

Lemke, Carina published the artcileChromenones as Multineurotargeting Inhibitors of Human Enzymes, Synthetic Route of 622-40-2, the publication is ACS Omega (2019), 4(26), 22161-22168, database is CAplus and MEDLINE.

The complex nature of multifactorial diseases, such as Morbus Alzheimer, has produced a strong need to design multitarget-directed ligands to address the involved complementary pathways. A purposive structural modification of a tetratarget small-mol. contilisant and generated a combinatorial library of substituted chromen-4-ones I (R = pyrrolidin-1-yl, piperidin-1-yl, morpholin-4-yl, etc.; n = 2, 3, 4, 5) is reported. The compounds comprise a basic moiety which is linker-connected to the 6-position of the heterocyclic chromenone core. The syntheses were accomplished by Mitsunobu- or Williamson-type ether formations. The resulting library members were evaluated at a panel of seven human enzymes, all of which being involved in the pathophysiol. of neurodegeneration. A concomitant inhibition of human acetylcholinesterase and human monoamine oxidase B, with IC50 values of 5.58 and 7.20 μM, resp., was achieved with the dual-target 6-(4-(piperidin-1-yl)butoxy)-4H-chromen-4-one.

ACS Omega published new progress about 622-40-2. 622-40-2 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Alcohol, name is 2-Morpholinoethanol, and the molecular formula is C6H13NO2, Synthetic Route of 622-40-2.

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

Yin, Zhenting published the artcileHierarchical Ti3C2Tx@BPA@PCL for flexible polyurethane foam capable of anti-compression, self-extinguishing and flame-retardant, Quality Control of 80-09-1, the publication is Journal of Colloid and Interface Science (2022), 208-220, database is CAplus and MEDLINE.

It is of great importance to fabricate flexible polyurethane foam (FPUF) with superior mech. properties and flame retardancy for practical applications. Herein, organosilicon and Ph phosphorus compounds were synthesized and grafted on the surface of Ti₃C₂T_x (Ti₃C₂T_x@BPA@PCL) via in-situ polymerization Then, the FPUF composites were fabricated, combining intrinsic flame retardancy (9,10-dihydro-9-oxa-10-phosphaphenanthrene 10-oxide-diethanolamine: DH-DOPO) (addition amount: 20 wt%) and Ti₃C₂T_x@BPA@PCL (addition amount: 4 wt%). Attributed to the rigid structure of Ti₃C₂T_x@BPA@PCL, the tensile strength and compression strength of FPUF showed 24.0% and 253% increase, resp. In addition, anti-fatigue properties of FPUF composites during the cyclical test were dramatically enhanced. In contrast to pure FPUF, 36.1% and 44.0% reductions in peak heat release rate (pHRR) and total heat release (THR) were achieved for the FPUF containing Ti₃C₂T_x@BPA@PCL and DH-DOPO, the production rate of carbon dioxide (CO₂) and carbon oxide (CO) also decreased by 40.3% and 52.1%, resp. FPUF4 showed self-extinguishing behavior, and passed the vertical burning test (VBT). This work provides a facile approach to preparing high-performance FPUF with enhanced mech. property and flame retardancy.

Journal of Colloid and Interface Science published new progress about 80-09-1. 80-09-1 belongs to alcohols-buliding-blocks, auxiliary class Ploymers, name is 4,4′-Sulfonyldiphenol, and the molecular formula is C2H4ClNO, Quality Control of 80-09-1.

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