Category: alcohols-buliding-blocks

Minto, Robert E. published the artcileLaser flash photolysis study of photodehydroxylation phenomena of 9-phenylxanthen-9-ol and photobehavior of related intermediates. Enhanced electrophilicity of 9-phenylxanthenium cation singlet, Recommanded Product: 9-Phenyl-9H-xanthen-9-ol, the publication is Journal of the American Chemical Society (1989), 111(24), 8858-66, database is CAplus.

In the course of 248-nm laser flash photolysis, solutions of 9-phenylxanthen-9-ol (I) undergo homolytic and heterolytic photodehydroxylation, the relative efficiency of which depends strongly on the solvent nature. Polar/hydroxylic solvents, especially aqueous mixtures, cause copious formation of 9-phenylxanthenium cation (II), the ground- and excited-state properties of which are conveniently studied by single- and double-laser flash photolysis. In 1:1 H₂O/MeCN, the quantum yield of carbenium ion generation is 0.4 ± 0.1, only 2% of which evolves through an adiabatic route. In polar but nonhydroxylic solvents (e.g., MeCN and CH₂ClCH₂Cl) also, the cation is photogenerated in small yields sufficient for time-resolved spectroscopic detection and study in these relatively neutral and inert media. In relatively nonpolar solvents, e.g., n-heptane and C₆H₆, photolysis of I is dominated by homolytic cleavage to 9-phenylxanthenyl radical III. The short-lived triplets of I (τ_T ≤ 0.3 μs) are also observed in nonaqueous solvents (ϕ_T = 0.05 in MeCN). In comparison to the weak, fast-decaying, double-doublet fluorescence of III (λ_max^F = 590 nm, τ_F ≤ 5 ns), the singlet-singlet fluorescence from II is intense and long-lived (λ_max^F = 550 nm, τ_F = 25 ns in MeCN in the absence of nucleophilic quenchers) and is almost nonquenchable by oxygen (k_q ≤ 5 × 10⁸M^-1 s^-1). The electrophilicity of the lowest excited singlet state of II, measured in terms of rate constants (k_q) of bimol. quenching by anions and lone-pair containing mols., is considerably more pronounced than that of the ground state (i.e., k_q‘s are higher for the excited state by several orders of magnitude).

Journal of the American Chemical Society 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, Recommanded Product: 9-Phenyl-9H-xanthen-9-ol.

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

Koner, Anamika published the artcileAttraction of the Biocontrol Agent, Galerucella placida Towards Volatile Blends of Two Polygonaceae Weeds, Rumex dentatus and Polygonum glabrum, Safety of cis-3,7-Dimethyl-2,6-Octadien-1-Ol, the publication is Journal of Chemical Ecology (2022), 48(2), 165-178, database is CAplus and MEDLINE.

The Polygonaceae weed, Rumex dentatus L. grows in association with wheat, mustard and potato, while Polygonum glabrum Willd. grows in association with rice in India. Both larvae and adults of Galerucella placida Baly (Coleoptera: Chrysomelidae) voraciously consume these weeds. Applications of synthetic herbicides to control weeds are harmful to the environment including beneficial organisms. We propose to find volatile organic compounds (VOCs) from both weeds causing attraction of the biocontrol agent, G. placida, in order to attempt to use the insect as a biol. weed control. Behavioral responses of G. placida towards volatile blends characteristic of undamaged (UD), insect-damaged (ID), jasmonic acid-treated (JA) or mech.-damaged (MD) plants were conducted by Y-tube olfactometer bioassays. Cuminaldehyde was predominant in VOCs of UD R. dentatus, ID P. glabrum, and both JA and MD R. dentatus and P. glabrum. Geraniol was predominant in VOCs of UD P. glabrum, while 1,3-diethylbenzene predominated in VOCs of ID R. dentatus. Females were more attracted towards volatile blends of ID plants compared to UD or JA plants. Females did not show attraction towards volatile blends of JA plants. We identified two bioactive synthetics blends, one comprised of seven compounds – 16.65μg 1,3-diethylbenzene, 10.72μg acetophenone, 6.52μg 2,6-(E,Z)-nonadienal, 2.46μg 1-nonanol, 4.19μg decanal, 9.86μg 4-ethylacetophenone and 3.34μg 1-hexadecene dissolved in 25μl CH₂Cl₂ and the other containing five compounds – 2.50μg 2-octanol, 6.84μg limonene, 0.64μg dodecane, 6.63μg 4-ethylacetophenone and 0.24μg geranyl acetone dissolved in 25μl CH₂Cl₂. These two blends of volatile compounds could be used to attract the biocontrol agent during early vegetative period of these two weeds, which could lead to eradication of weeds from crop fields.

Journal of Chemical Ecology 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, Safety of cis-3,7-Dimethyl-2,6-Octadien-1-Ol.

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

Mahor, Sunil published the artcileMannosylated Polyethyleneimine-Hyaluronan Nanohybrids for Targeted Gene Delivery to Macrophage-Like Cell Lines, Recommanded Product: (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol, the publication is Bioconjugate Chemistry (2012), 23(6), 1138-1148, database is CAplus and MEDLINE.

Nonviral gene delivery systems have a number of limitations including low transfection efficiency, specificity, and cytotoxicity, especially when the target cells are macrophages. To address these issues, the hypothesis tested in this study was that mannose functionalized nanohybrids composed of synthetic and natural polymers will improve transfection efficiency, cell viability, and cell specificity in macrophages. Robust nanohybrids were designed from hyaluronic acid (HA) and branched polyethyleneimine (bPEI) using carbodiimide chem. The reaction product, i.e., branched polyethyleneimine-hyaluronic acid (bPEI-HA) copolymer was subsequently functionalized with mannose at the terminal end of the copolymer to obtain mannosylated-bPEI-HA (Man-bPEI-HA) copolymer. UV spectroscopy and gel retardation studies confirmed the formation of polyplexes at polymer to DNA weight ratio ≥2. Alamar Blue and MTT assay revealed that the cytotoxicity of the developed nanohybrids were significantly (P < 0.05) lower than that of unmodified bPEI. Mannose functionalization of these nanohybrids showed specificity for both murine and human macrophage-like cell lines RAW 264.7 and human acute monocytic leukemia cell line (THP1), resp., with a significant level (P < 0.05) of expression of gaussia luciferase (GLuc) and green fluorescent reporter plasmids. Internalization studies indicate that a mannose mediated endocytic pathway is responsible for this higher transfection rate. These results suggest that hyaluronan-based mannosylated nanohybrids could be used as efficient carriers for targeted gene delivery to macrophages.

Bioconjugate Chemistry 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, Recommanded Product: (2R,3S,4S,5S,6R)-2-(Hydroxymethyl)-6-(4-isothiocyanatophenoxy)tetrahydro-2H-pyran-3,4,5-triol.

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

Kaya, S. Irem published the artcileSimple preparation of surface molecularly imprinted polymer based on silica particles for trace level assay of bisphenol F, Application In Synthesis of 80-09-1, the publication is Analytical and Bioanalytical Chemistry (2022), 414(19), 5793-5803, database is CAplus and MEDLINE.

A new electrochem. sensor based on molecularly imprinted tetra-Et orthosilicate (TEOS)-based porous interface was developed for selective recognition of bisphenol F (BPF) in this study. The sensor was prepared by depositing the solution containing TEOS and L-tryptophan (L-Trp) in the presence of cetyltrimethylammonium bromide (CTAB) as a pore-maker via hydrolysis/condensation reaction on the glassy carbon electrode (GCE). While the surface morphol. and structure characterization were carried out using Fourier transform IR spectroscopy (FTIR) and SEM (SEM), electrochem. characterization was performed through electrochem. impedance spectroscopy (EIS) and cyclic voltammetry (CV). The resulted MIP(TEOS:L-Trp)@GCE achieved a wide linear range of 1 x 10^-15-1 x 10^-14 M for BPF detection with an excellent detection limit of 0.291 fM. Furthermore, the recovery of BPF from spiked bottled water and serum samples varied between 98.83 and 101.03%. These results demonstrate that MIP(TEOS:L-Trp)@GCE was found to be a simple, sensitive, and selective smart interface to detect trace pollution even from complicated samples.

Analytical and Bioanalytical Chemistry 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 C12H10O4S, Application In Synthesis of 80-09-1.

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

Vaillant, Fabrice published the artcilePlasma Metabolome Profiling by High-Performance Chemical Isotope-Labelling LC-MS after Acute and Medium-Term Intervention with Golden Berry Fruit (Physalis peruviana L.), Confirming Its Impact on Insulin-Associated Signaling Pathways, Application of 3-Hydroxyphenylacetic acid, the publication is Nutrients (2021), 13(9), 3125, database is CAplus and MEDLINE.

Golden berry (Physalis peruviana L.) is an exotic fruit exported from Colombia to different countries around the world. A review of the literature tends to demonstrate a hypoglycemic effect with an improvement in insulin sensitivity after oral ingestion of fruit extracts in animal models. However, little is known about their potential effects in humans, and very little is known about the mechanisms involved. This study aimed at identifying discriminant metabolites after acute and chronic intake of golden berry. An untargeted metabolomics strategy using high-performance chem. isotope-labeling LC-MS was applied. The blood samples of eighteen healthy adults were analyzed at baseline, at 6 h after the intake of 250 g of golden berry (acute intervention), and after 19 days of daily consumption of 150 g (medium-term intervention). Forty-nine and 36 discriminant metabolites were identified with high confidence, resp., after the acute and medium-term interventions. Taking into account up- and downregulated metabolites, three biol. networks mainly involving insulin, epidermal growth factor receptor (EGFR), and the phosphatidylinositol 3-kinase pathway (PI3K/Akt/mTOR) were identified. The biol. intracellular networks identified are highly interconnected with the insulin signalling pathway, showing that berry intake may be associated with insulin signalling, which could reduce some risk factors related to metabolic syndrome. Primary registry of WHO.

Nutrients published new progress about 621-37-4. 621-37-4 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Phenol,Natural product, name is 3-Hydroxyphenylacetic acid, and the molecular formula is C7H10O4, Application of 3-Hydroxyphenylacetic acid.

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

Malheiros, Jessica Moraes published the artcileComparative untargeted metabolome analysis of ruminal fluid and feces of Nelore steers (Bos indicus), Recommanded Product: 3-Hydroxyphenylacetic acid, the publication is Scientific Reports (2021), 11(1), 12752, database is CAplus and MEDLINE.

We conducted a study to identify the fecal metabolite profile and its proximity to the ruminal metabolism of Nelore steers based on an untargeted metabolomic approach. Twenty-six Nelore were feedlot with same diet during 105 d. Feces and rumen fluid were collected before and at slaughter, resp. The metabolomics anal. indicated 49 common polar metabolites in the rumen and feces. Acetate, propionate, and butyrate were the most abundant polar metabolites in both bio-samples. The rumen presented significantly higher concentrations of the polar compounds when compared to feces (P < 0.05); even though, fecal metabolites presented an accentuated representability of the ruminal fluid metabolites. All fatty acids present in the ruminal fluid were also observed in the feces, except for C20:2n6 and C20:4n6. The identified metabolites offer information on the main metabolic pathways (higher impact factor and P < 0.05), as synthesis and degradation of ketone bodies; the alanine, aspartate and glutamate metabolisms, the glycine, serine; and threonine metabolism and the pyruvate metabolism The findings reported herein on the close relationship between the ruminal fluid and feces metabolic profiles may offer new metabolic information, in addition to facilitating the sampling for metabolism investigation in animal production and health routines.

Scientific Reports published new progress about 621-37-4. 621-37-4 belongs to alcohols-buliding-blocks, auxiliary class Carboxylic acid,Benzene,Phenol,Natural product, name is 3-Hydroxyphenylacetic acid, and the molecular formula is C8H8O3, Recommanded Product: 3-Hydroxyphenylacetic acid.

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

Delgado, Jose A. C. published the artcileBiocompatible photoinduced alkylation of dehydroalanine for the synthesis of unnatural α-amino acids, Category: alcohols-buliding-blocks, the publication is Organic Letters (2021), 23(13), 5251-5255, database is CAplus and MEDLINE.

A site-selective alkylation of dehydroalanine to access protected unnatural amino acids is described. The protocol is characterized by the wide nature of alkyl radicals employed, mild conditions, and functional group compatibility. This protocol is further extended to access peptides, late-stage functionalization of pharmaceuticals, and enantioenriched amino acids.

Organic Letters 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, Category: alcohols-buliding-blocks.

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

Rosenbaum, Anton I. published the artcileThiadiazole Carbamates: Potent Inhibitors of Lysosomal Acid Lipase and Potential Niemann-Pick Type C Disease Therapeutics, HPLC of Formula: 30165-97-0, the publication is Journal of Medicinal Chemistry (2010), 53(14), 5281-5289, database is CAplus and MEDLINE.

Niemann-Pick type C (NPC) disease is a lysosomal storage disorder characterized at the cellular level by abnormal accumulation of cholesterol and other lipids in lysosomal storage organelles. Lysosomal acid lipase (LAL) has been recently identified as a potential therapeutic target for NPC. LAL can be specifically inhibited by a variety of 3,4-disubstituted thiadiazole carbamates. An efficient synthesis of the C(3) oxygenated/C(4) aminated analogs has been developed that furnishes the products in high yields and high degrees of purity. Common intermediates can also be used for the synthesis of the C(3) carbon substituted derivatives Herein we tested various thiadiazole carbamates, amides, esters, and ketones for inhibition of LAL. In addition, we tested a diverse selection of com. available non-thiadiazole carbamates. Our studies show that, among the compounds examined herein, only thiadiazole carbamates are effective inhibitors of LAL. We present a mechanism for LAL inhibition by these compounds whereby LAL transiently carbamoylates the enzyme similarly to previously described inhibition of acetylcholinesterase by rivastigmine and other carbamates as well as acylation of various lipases by orlistat.

Journal of Medicinal Chemistry 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 C6H9N3O2S, HPLC of Formula: 30165-97-0.

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

Aubineau, Thomas published the artcileA One-Pot Reaction toward the Diastereoselective Synthesis of Substituted Morpholines, SDS of cas: 96-20-8, the publication is Organic Letters (2018), 20(23), 7419-7423, database is CAplus and MEDLINE.

The diastereoselective synthesis of various substituted morpholines has been achieved from vinyloxiranes and amino-alcs. under sequential Pd(0)-catalyzed Tsuji-Trost/Fe(III)-catalyzed heterocyclization. Using the same strategy, 2,6-, 2,5-, and 2,3-disubstituted as well as 2,5,6- and 2,3,5-trisubstituted morpholines were obtained in good to excellent yields and diastereoselectivities.

Organic Letters 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

Simond, Mickael published the artcileExcess Molar Enthalpies of Water + Primary Alkanolamines with a Common N-C-C-O Skeleton, Name: 2-Aminobutan-1-ol, the publication is Journal of Chemical & Engineering Data (2021), 66(11), 4206-4214, database is CAplus.

The excess molar enthalpies of binary mixtures of 2-amino-ethan-1-ol (MEA) and 1-aminopropane-2-ol (MIPA), 2-amino-butan-1-ol (ABU), and 2-amino-2-methyl-propan-1-ol (AMP) with water were measured vs. temperatures from 318.15 to 393.15 K and at a pressure of 0.5 MPa. The Redlich-Kister equation was used to fit the exptl. data and to estimate the molar enthalpies of alkanolamine and water at infinite dilution The effect of the substitution of alkyl groups on the carbon of the hydroxyl function is discussed on the basis of mol. simulation results published on alkanolamines earlier.

Journal of Chemical & Engineering Data 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 C14H14N2O2, Name: 2-Aminobutan-1-ol.

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