Category: alcohols-buliding-blocks

Carbo, Jorge J. published the artcileConstruction of titanasiloxanes by incorporation of silanols to the metal oxide model [{Ti(η⁵-C₅Me₅)(μ-O)}₃(μ₃-CR)]: DFT elucidation of the reaction mechanism, Product Details of C9H22OSi, the publication is Chemistry – A European Journal (2008), 14(26), 7930-7938, database is CAplus and MEDLINE.

A family of novel titanasiloxanes containing the structural unit {[Ti(η⁵-C₅Me₅)O]₃} were synthesized by hydron-transfer processes involving reactions with equimol. amounts of μ₃-alkylidyne derivatives [{Ti(η⁵-C₅Me₅)(μ-O)}₃(μ₃-CR)] (R = H (1), Me (2)) and monosilanols, R₃‘Si(OH), silanediols, R₂‘Si(OH)₂, and the silanetriol tBuSi(OH)₃. Treatment of 1 and 2 with triorganosilanols (R’ = Ph, iPr) in hexane affords the new metallasiloxane derivatives [{Ti(η⁵-C₅Me₅)(μ-O)}₃(μ-CHR)(OSiR₃‘)] (R = H, R’ = Ph (3), iPr (4); R = Me, R’ = Ph (5), iPr (6)). Analogous reactions with silanediols, (R’ = Ph, iPr), give the cyclic titanasiloxanes [{Ti(η⁵-C₅Me₅)(μ-O)}₃(μ-O₂SiR’₂)(R)] (R = Me, R’ = Ph (7), iPr (8): R = Et, R’ = Ph (9), iPr (10)). Use of tBuSi(OH)₃ with 1 or 2 at room temperature produces the intermediate complexes [{Ti(η⁵-C₅Me₅)(μ-O)}₃(μ-O₂Si(OH)tBu)(R)] (R = Me (11), Et (12)). Further heating of solutions of 11 or 12 affords the same compound with an adamantanoid structure, [{Ti(η⁵-C₅Me₅)(μ-O)}₃(η-O₃SitBu)] (13) and methane or ethane elimination, resp. The x-ray crystal structures of 3, 4, 6, 8, 10, 12, and 13 were determined To gain an insight into the mechanism of these reactions, DFT calculations were performed on the incorporation of monosilanol to the model complex [{Ti(η⁵-C₅H₅)(μ-O)}₃(μ₃-CMe)] (2H). The propose mechanism consists of three steps: (1) hydron transfer from the silanol to one of the O atoms of the Ti₃O₃ ring, forming a titanasiloxane; (2) intramol. hydron migration to the alkylidyne moiety; and (3) a μ-alkylidene ligand rotation to give the final product.

Chemistry – A European Journal 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, Product Details of C9H22OSi.

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

Song, Fengqin published the artcileGas chromatography-mass spectrometry profiling of volatile compounds reveals metabolic changes in a non-aflatoxigenic Aspergillus flavus induced by 5-azacytidine, SDS of cas: 622-40-2, the publication is Toxins (2020), 12(1), 57, database is CAplus and MEDLINE.

Aspergillus flavus is one of the most opportunistic pathogens invading many important oilseed crops and foodstuffs with such toxic secondary metabolites as aflatoxin (AF) and Cyclopiazonic acid. We previously used the DNA methylation inhibitor 5-azacytidine to treat with an AF-producing A. flavus A133 strain, and isolated a mutant (NT) of A. flavus, which displayed impaired abilities of AF biosynthesis and fungal development. In this study, gas chromatog.-mass spectrometry (GC-MS) anal. was used to reveal the metabolic changes between these two strains. A total of 1181 volatiles were identified in these two strains, among which 490 volatiles were found in these two strains in vitro and 332 volatiles were found in vivo. The NT mutant was found to produce decreasing volatile compounds, among which most of the fatty acid-derived volatiles were significantly downregulated in the NT mutant compared to the A133 strain, which are important precursors for AF biosynthesis. Two antioxidants and most of the amino acids derived volatiles were found significantly upregulated in the NT mutant. Overall, our results reveal the difference of metabolic profiles in two different A. flavus isolates, which may provide valuable information for controlling infections of this fungal pathogen.

Toxins 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 C8H7NaO4S, SDS of cas: 622-40-2.

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

Wang, Qingzhuo published the artcileBacterial mandelic acid degradation pathway and its application in biotechnology, Quality Control of 90-64-2, the publication is Journal of Applied Microbiology (2022), 133(2), 273-286, database is CAplus and MEDLINE.

A review. Mandelic acid and its derivatives are an important class of chem. synthetic blocks, which is widely used in drug synthesis and stereochem. research. In nature, mandelic acid degradation pathway has been widely identified and analyzed as a representative pathway of aromatic compounds degradation The most studied mandelic acid degradation pathway from Pseudomonas putida consists of mandelate racemase, S-mandelate dehydrogenase, benzoylformate decarboxylase, benzaldehyde dehydrogenase and downstream benzoic acid degradation pathways. Because of the ability to catalyze various reactions of aromatic substrates, pathway enzymes have been widely used in biocatalysis, kinetic resolution, chiral compounds synthesis or construction of new metabolic pathways. In this paper, the physiol. significance and the existing range of the mandelic acid degradation pathway were introduced first. Then each of the enzymes in the pathway is reviewed one by one, including the researches on enzymic properties and the applications in biotechnol. as well as efforts that have been made to modify the substrate specificity or improving catalytic activity by enzyme engineering to adapt different applications. The composition of the important metabolic pathway of bacterial mandelic acid degradation pathway as well as the researches and applications of pathway enzymes is summarized in this review for the first time.

Journal of Applied Microbiology published new progress about 90-64-2. 90-64-2 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Alcohol,Natural product, name is 2-Hydroxy-2-phenylacetic acid, and the molecular formula is C17H14N2O2, Quality Control of 90-64-2.

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

Capalbi, Antonio published the artcileSolution properties of alkyl glucosides, alkyl thioglucosides and alkyl maltosides, HPLC of Formula: 85618-21-9, the publication is Colloids and Surfaces, A: Physicochemical and Engineering Aspects (2004), 246(1-3), 99-108, database is CAplus.

Aqueous solutions containing sugar-based surfactants, alkyl glucosides, thioglucosides and maltosides, were studied in a wide concentration range, at different temperatures Colligative properties (f.p. and vapor pressure depression), volumetric, adiabatic compressibility, surface tension and calorimetric methods were used. The results give information on the Gibbs energy of transfer from H₂O to a micellar environment and on other thermodn. contributions to the overall aggregate stability. The thermodn. quantities derived from the above exptl. methods were interpreted by taking into account the role of polar head groups in modulating micelle formation. Use of a mass action approach allows determining micelle aggregation numbers, 〈N〉, from partial molal quantities. The differences between values obtained from calorimetric, colligative, compressibility, surface and volumetric properties were rationalized on proper grounds.

Colloids and Surfaces, A: Physicochemical and Engineering Aspects 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, HPLC of Formula: 85618-21-9.

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

Gokel, George W. published the artcileSulfur heterocycles. I. Use of 4,4-dimethyl-1,3-oxathiolane-3,3-dioxide as a carbonyl anion equivalent, Recommanded Product: 2-Methyl-2-sulfanylpropan-1-ol, the publication is Tetrahedron Letters (1979), 3375-8, database is CAplus.

The oxathiolane I (R = H), acting as a carbonyl anion equivalent, was alkylated with BuLi and the appropriate reagent to give I [R = D, Me, PhCH₂, CH₂:CHCH₂, Me(CH₂)₅, 1-hydroxycyclopentyl, 1-hydroxycyclohexyl, 1-hydroxycyclododecyl, PhCH(OH), PhC(OH)Me, Me₃Si, Ph]. Thermal demasking of I (R ≠ H, D), with loss of Me₂C:CH₂ and SO₂, gave the corresponding aldehyde or α-silyl ketone. E.g., pyrolysis of I (R = PhCH₂) gave 100% PhCH₂CHO.

Tetrahedron Letters published new progress about 73303-88-5. 73303-88-5 belongs to alcohols-buliding-blocks, auxiliary class Thiol,Aliphatic hydrocarbon chain,Alcohol, name is 2-Methyl-2-sulfanylpropan-1-ol, and the molecular formula is C4H10OS, Recommanded Product: 2-Methyl-2-sulfanylpropan-1-ol.

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

Gokel, George W. published the artcileSulfur heterocycles. 3. Heterogeneous, phase-transfer, and acid-catalyzed potassium permanganate oxidation of sulfides to sulfones and a survey of their carbon-13 nuclear magnetic resonance spectra, Name: 2-Methyl-2-sulfanylpropan-1-ol, the publication is Journal of Organic Chemistry (1980), 45(18), 3634-9, database is CAplus.

Nineteen low-mol.-weight and heterocyclic sulfides were oxidized by variations of a technique using KMnO₄ and various catalysts. In addition, the NMR spectra of these compounds and other sulfones are reported.

Journal of Organic Chemistry published new progress about 73303-88-5. 73303-88-5 belongs to alcohols-buliding-blocks, auxiliary class Thiol,Aliphatic hydrocarbon chain,Alcohol, name is 2-Methyl-2-sulfanylpropan-1-ol, and the molecular formula is C4H10OS, Name: 2-Methyl-2-sulfanylpropan-1-ol.

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

Kilcoyne, Michelle published the artcileSurface chemistry and linker effects on lectin-carbohydrate recognition for glycan microarrays, Synthetic Route of 96345-79-8, the publication is Analytical Methods (2012), 4(9), 2721-2728, database is CAplus.

Glycan microarrays are an increasingly utilized tool for anal. of protein-carbohydrate interactions and a variety of glycan-containing mols. and slide chemistries have been used to array carbohydrates on microarray surfaces. Slide surface chem. can have significant impact on the ligand presentation, background noise, spot size and morphol. and reproducibility of the arrayed mols., which in turn impacts upon lectin-carbohydrate recognition. The linker used to attach the carbohydrate to the mol. scaffold is another variable in ligand presentation. To evaluate these effects, three different microarray surface chemistries were arrayed with the same mono- and di-saccharide neoglycoconjugates and natural glycoproteins and incubated with four well-characterized plant lectins. Analogs of three monosaccharide neoglycoconjugates, with two common linkers each, were included in the test group to evaluate the linker effect on lectin recognition. Based on lowest background noise, expected lectin-ligand interaction, good spot morphol. and best reproducibility, the three-dimensional hydrogel slide surface proved most suitable for lectin interrogation of carbohydrate ligands, and the more flexible phenylisothiocyanate linker afforded greater recognition of the carbohydrates by the relevant lectins.

Analytical Methods published new progress about 96345-79-8. 96345-79-8 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Gal and Man, name is (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol, and the molecular formula is C13H15NO6S, Synthetic Route of 96345-79-8.

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

Cozens, F. L. published the artcileSpontaneous carbocation generation on clays, Safety of 9-Phenyl-9H-xanthen-9-ol, the publication is Langmuir (1993), 9(3), 874-6, database is CAplus.

Stable carbocations were generated from arylfluorenols I (R = R¹ = H, Me; R = H, R¹ = Me), phenylxanthenol II, and tritylamine incorporated on smectic montmorillonite. Diffuse reflectance spectra were obtained.

Langmuir published new progress about 596-38-3. 596-38-3 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Benzene,Alcohol, name is 9-Phenyl-9H-xanthen-9-ol, and the molecular formula is C19H14O2, Safety of 9-Phenyl-9H-xanthen-9-ol.

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

Horner, Leopold published the artcileo-Quinones. XXVII. Redox potentials of pyrocatechol derivatives, Recommanded Product: 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol, the publication is Chemische Berichte (1965), 98(6), 2016-45, database is CAplus.

cf. Ibid. 2009-15; CA 62, 16155a. The polarographically determined standard redox potentials of 121 pyrocatechol derivatives, among them 28 substituted 1′,2′-dihydroxy-6,7-benzotropolones, were reported. The substituent effect on increments corresponding to the redox potential is approx. additive for many substituents. The redox potentials are discussed.

Chemische Berichte 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, Recommanded Product: 4-(2,4,4-Trimethylpentan-2-yl)benzene-1,2-diol.

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

Ekrami, Ali published the artcileDevelopment and evaluation of Zhumeria majdae essential oil-loaded nanoliposome against multidrug-resistant clinical pathogens causing nosocomial infection, Recommanded Product: cis-3,7-Dimethyl-2,6-Octadien-1-Ol, the publication is Journal of Drug Delivery Science and Technology (2022), 103148, database is CAplus.

In this study, we used Zhumeria majdae essential oil (ZMEO) loaded nanoliposome (NLP) to control several multidrug-resistant clin. pathogens (MDRs) that cause nosocomial infections using thin-layer hydration. Initially, ZMEO was extracted and analyzed by GC-MS, and then NLP-ZMEO was examined with different ratios of ZMEO to lecithin. Based on evaluation of release profile and phys. stability, size distribution, and particle size, using dynamic light scattering (DLS) results, the most stable NLP-ZMEO were prepared from ZMEO to lecithin ratio 1:3 that relative to pure ZMEO presented more potent antioxidant, anti-quorum sensing, and anti-biofilm activities. The morphol. results (AFM and SEM) also agreed with DLS anal. Also, the results of structural properties (DSC and FTIR) approved interaction between ZMEO and NLP. Comparing the cytotoxic effect on fibroblasts cell lines and antibacterial activity (MIC, MBC, and agar disk diffusion method), it was found that the antimicrobial activity in NLP-ZMEO was higher than ZMEO against multidrug-resistant clin. pathogens that cause nosocomial infection. The subcytotoxic values of the tested NLP-ZMEO were higher than MICs and MBCs for MDR bacteria and chlorhexidine doses.

Journal of Drug Delivery Science and Technology 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, Recommanded Product: cis-3,7-Dimethyl-2,6-Octadien-1-Ol.

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