Tag: M.W=150-200

Ghorbani-Choghamarani, Arash; Moradi, Parisa; Tahmasbi, Bahman published the artcile< Modification of boehmite nanoparticles with Adenine for the immobilization of Cu(II) as organic-inorganic hybrid nanocatalyst in organic reactions>, Formula: C8H10OS, the main research area is boehmite nanoparticle adenine immobilization copper organic hybrid nanocatalyst.

Boehmite nanoparticles are aluminum oxide hydroxide (γ-AlOOH) particles, which has large sp. surface area (>120 m2 g-1) and can be prepared using an inexpensive procedure in water. Herein, we present an economical, simple, and environmentally friendly route for the preparation of a copper catalyst on Adenine coated boehmite nanoparticles (Cu-Adenine@boehmite). This catalyst has been characterized by several techniques such as SEM, XRD, AAS, ICP and TGA anal. Cu-Adenine@boehmite was applied as highly efficient and reusable nanocatalyst in carbon-carbon coupling reactions between various aryl halides and sodium tetra-Ph borate, phenylboronic acid, or 3,4-diflorophenylboronic acid under aerobic conditions, palladium-free and phosphine-free ligand. Also this catalyst was applied for the synthesis of polyhydroquinoline derivatives In continuation, selective oxidation of sulfides to sulfoxides using hydrogen peroxide (H2O2) was studied in the presence of Cu-Adenine@boehmite as catalyst. The synthesis of sulfoxides using H2O2 in the presence of Cu-Adenine@boehmite does not generate waste and any byproducts. This catalyst was reused for several times in C-C coupling reaction without loss of its catalytic activity. Reused catalyst was characterized by SEM, XRD and ICP techniques. Heterogeneity and stability of Cu-Adenine@boehmite were studied by hot filtration test, poisoning test and ICP anal.

Polyhedron published new progress about Catalyst poisoning. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Formula: C8H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Isaksson, Marléne; Karlberg, Ann-Therese; Nilsson, Ulrika published the artcile< Allergic contact dermatitis caused by oxidized linalool in a deodorant.>, Electric Literature of 78-70-6, the main research area is allergic contact dermatitis; armpit dermatitis; case report; chemical analysis; fragrances; hydroperoxides of linalool; linalool oxidation products; patch testing.

There is no abstract available for this document.

Contact dermatitis published new progress about 78-70-6. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, Electric Literature of 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Xu, Guan-Yi; Liao, Ai-Mei; Huang, Ji-Hong; Zhang, Jian-Guo; Thakur, Kiran; Wei, Zhao-Jun published the artcile< Evaluation of structural, functional, and anti-oxidant potential of differentially extracted polysaccharides from potatoes peels>, Quality Control of 3458-28-4, the main research area is potato peel polysaccharide structural functional property antioxidant potential; Anti-oxidant; Differential extraction; Physicochemical; Polysaccharides; Potato peel.

Potato peel was used for the extraction of three types of polysaccharides (PW, PAL, and PAC) using water, alk., and acid treatments, resp. The structure of the PP polysaccharides was examined by means of Fourier transform IR spectroscopy (FT-IR) anal. and Gas chromatog.-mass spectrometry (GC-MS). The results suggest that the extracted polysaccharides constituted essentially three functional groups: C=O, C-H, and O-H. The polysaccharides were comprised of low proportions of proteins, 17-23% uronic acids, and approx. 70% carbohydrates. PAL, PW, and PAC with mol. weights of 2.25 × 103, 2.18 × 103, and 1.92 × 103 kDa, resp., were composed of rhamnose, xylose, mannose, arabinose, glucose, and galactose. Functional properties (solubility, oil holding capacity, foaming, and emulsion properties) of these polysaccharides were evaluated. Among three, PAL showed the highest fat-binding capacity which was 7.50 g/g with the solubility of 95.06%. The three polysaccharides possessed appreciable in vitro anti-oxidant (scavenging DPPH and ABTS+ radicals, chelating ferrous ions, and reducing power) potential. PAL exhibited the strongest reducing power, scavenging activity on DPPH radicals and chelating capability on ferrous ions. PP polysaccharides can be used as promising natural antioxidants in food, pharmaceutical, and cosmetic preparations

International Journal of Biological Macromolecules published new progress about Antioxidants. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Quality Control of 3458-28-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gasmi, Laila; Martinez-Solis, Maria; Frattini, Ada; Ye, Meng; Collado, Maria Carmen; Turlings, Ted C. J.; Erb, Matthias; Herrero, Salvador published the artcile< Can herbivore-induced volatiles protect plants by increasing the herbivores' susceptibility to natural pathogens?>, Synthetic Route of 78-70-6, the main research area is herbivore plant volatile gut microbiota pathogenicity cellular immunity; Bacillus thuringiensis; baculovirus; entomopathogen; indole; linalool; plant volatiles; plant-microbe interactions.

In response to insect herbivory, plants mobilize various defenses. Defense responses include the release of herbivore-induced plant volatiles (HIPVs) that can serve as signals to alert undamaged tissues and to attract natural enemies of the herbivores. Some HIPVs can have a direct neg. impact on herbivore survival, but it is not well understood by what mechanisms. Here, we tested the hypothesis that exposure to HIPVs renders insects more susceptible to natural pathogens. Exposure of the caterpillars of the noctuid Spodoptera exigua to indole and linalool, but not exposure to (Z)-3-hexenyl acetate, increased the susceptibility to Spodoptera exigua multiple nucleopolyhedrovirus (SeMNPV). We also found that exposure to indole, but not exposure to linalool or (Z)-3-hexenyl acetate, increased the pathogenicity of Bacillus thuringiensis. Addnl. experiments revealed significant changes in microbiota composition after forty-eight hours of larval exposure to indole. Overall, these results provide evidence that certain HIPVs can strongly enhance the susceptibility of caterpillars to pathogens, possibly through effects on the insect gut microbiota. These findings suggest a novel mechanism by which HIPVs can protect plants from herbivorous insects. Multitrophic interactions involving insect pests, their natural enemies, microorganisms, and plant hosts are increasingly being recognized as relevant factors in pest management. In response to herbivory attacks, plants activate a wide range of defenses that aim to mitigate the damage. Attacked plants release herbivore-induced plant volatiles (HIPVs), which can act as priming signals for other plants and attract natural enemies of herbivores, and which may have a direct neg. impact on herbivore survival. In the present work, we show that exposure of the insects to the induced volatiles could increase the insects’ susceptibility to the entomopathogens naturally occurring in the plant environment. These findings suggest a novel role for plant volatiles by influencing insect interactions with natural pathogens, probably mediated by alterations in the insect microbiota composition In addition,this work provides evidence for selectable plant traits (production of secondary metabolites) that can have an influence on the ecol. of the pests and could be relevant in the improvement of pest management strategies using natural entomopathogens.

Applied and Environmental Microbiology published new progress about Bacillus thuringiensis. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, Synthetic Route of 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Berzins, Karlis; Sales, Ruth E.; Barnsley, Jonathan E.; Walker, Greg; Fraser-Miller, Sara J.; Gordon, Keith C. published the artcile< Low-wavenumber Raman spectral database of pharmaceutical excipients>, COA of Formula: C6H12O6, the main research area is pharmaceutical LWR spectroscopy amino acids esters organosulfates protein polymers.

The interest in applications of low-wavenumber Raman (LWR) spectroscopy for pharmaceutical anal. has increased rapidly over the last decade. In this study, a collection of LWR spectra are presented for 75 commonly used pharmaceutical excipients, which serve an important role in the manufacture and delivery of pharmaceutics. The excipients were divided into 10 main groups based on chem. composition: amino acids, mono- and disaccharides, polysaccharides, monomeric polyols, esters, inorganic substances, organosulfates and carboxylic acids/salts, protein, polymers and others. The spectral data is intended to serve as a reference for a number of general purposes such as qual. and quant. anal., counterfeit detection and pharmaceutical process control.

Vibrational Spectroscopy published new progress about Amino acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, COA of Formula: C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Nikoorazm, Mohsen; Ghobadi, Massoud published the artcile< Cu-SBTU@MCM-41: As an Efficient and Reusable Nanocatalyst for Selective Oxidation of Sulfides and Oxidative Coupling of Thiols>, Application In Synthesis of 699-12-7, the main research area is copper complex mesoporous silica nanocatalyst sulfide selective oxidation sulfoxide; disulfide thiol oxidative coupling.

Cu(II) complex with S-benzylisothiourea ligand was grafted into functionalized mesoporous MCM-41 (Cu-SBTU@MCM-41) and characterized by X-ray diffraction (XRD), thermal gravimetric anal. (TGA), SEM (SEM), energy-dispersive X-ray spectroscopy (EDX), Fourier transform IR spectroscopy (FT-IR) and inductively coupled plasma (ICP-OES) techniques. After characterization of this catalyst, its application has been studied in selective oxidation of sulfides to sulfoxides and oxidative coupling of thiols to disulfides using hydrogen peroxide (H2O2) as oxidant. This catalyst was shown good recyclability and reused for several consecutive runs without significant loss of its activity.

Silicon published new progress about Disulfides, organic Role: IMF (Industrial Manufacture), PREP (Preparation). 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Application In Synthesis of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ibrahim, Elsayed A.; Wang, Mei; Radwan, Mohamed M.; Wanas, Amira S.; Majumdar, Chandrani G.; Avula, Baharthi; Wang, Yan-Hong; Khan, Ikhlas A.; Chandra, Suman; Lata, Hemant; Hadad, Ghada M.; Abdel Salam, Randa A.; Ibrahim, Amany K.; Ahmed, Safwat A.; El Sohly, Mahmoud A. published the artcile< Analysis of Terpenes in Cannabis sativa L. Using GC/MS: Method Development, Validation, and Application>, Reference of 78-70-6, the main research area is terpene Cannabis sativa gas chromatog mass spectrometry.

Terpenes are the major components of the essential oils present in various Cannabis sativaL. varieties. These compounds are responsible for the distinctive aromas and flavors. Besides the quantification of the cannabinoids, determination of the terpenes in C. sativastrains could be of importance for the plant selection process. At the University of Mississippi, a GC-MS method has been developed and validated for the quantification of terpenes in cannabis plant material, viz., α-pinene, β-pinene, β-myrcene, limonene, terpinolene, linalool, α-terpineol, β-caryophyllene, α-humulene, and caryophyllene oxide. The method was optimized and fully validated according to AOAC (Association of Official Anal. Chemists) guidelines against reference standards of selected terpenes. Samples were prepared by extraction of the plant material with Et acetate containing n-tridecane solution (100μg/mL) as the internal standard The concentration-response relationship for all analyzed terpenes using the developed method was linear with r 2values > 0.99. The average recoveries for all terpenes in spiked indoor cultivated samples were between 95.0 – 105.7%, with the exception of terpinolene (67 – 70%). The measured repeatability and intermediate precisions (% relative standard deviation) in all varieties ranged from 0.32 to 8.47%. The limit of detection and limit of quantitation for all targeted terpenes were determined to be 0.25 and 0.75μg/mL, resp. The proposed method is highly selective, reliable, and accurate and has been applied to the simultaneous determination of these major terpenes in the C. sativabiomass produced by our facility at the University of Mississippi as well as in confiscated marijuana samples.

Planta Medica published new progress about Cannabinoids Role: ANT (Analyte), ANST (Analytical Study). 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, Reference of 78-70-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Russo, E.; Montt Guevara, M.; Giannini, A.; Mannella, P.; Palla, G.; Caretto, M.; Pancetti, F.; Genazzani, A. D.; Simoncini, T. published the artcile< Cranberry, D-mannose and anti-inflammatory agents prevent lower urinary tract symptoms in women undergoing prolapse surgery>, Recommanded Product: (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal, the main research area is mannose anti inflammatory agent human urinary tract prolapse surgery; Cystocele; lower urinary tract symptoms; nutritional supplements; pelvic organ prolapse.

We assessed the effect on lower urinary tract symptoms (LUTS) of a supplement containing cranberry, D-mannose and anti-inflammatory mols. in postmenopausal women undergoing surgery for cystocele. Forty postmenopausal women were randomized 1:1 to an active group receiving the nutritional supplement twice a day for 2 wk starting from surgery, or to a control group receiving surgery only. Primary outcomes were the effectiveness in the postoperative LUTS and urinary tract infections (UTI). LUTS were investigated by a validated questionnaire (ICIQ-FLUTS) at baseline and at week 4. Secondary outcomes were the safety and tolerability of the supplement and other perioperative outcomes. No significant differences were found in perioperative outcomes and in incidence of UTI. After surgery, women treated with the supplement experienced significantly better scores on the filling domain of the questionnaire. A non-significant decrease in voiding scores was also found. No adverse events were detected. The use of an oral supplement containing cranberry, D-mannose and anti-inflammatory mols. decreases the perception of LUTS in postmenopausal women after anterior colporraphy. Our data suggest that perioperative use of nutritional supplements may be useful in the management of postoperative LUTS.

Climacteric published new progress about Anti-inflammatory agents. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Recommanded Product: (2S,3S,4R,5R)-2,3,4,5,6-Pentahydroxyhexanal.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Makino, Kosho; Tozawa, Kumi; Tanaka, Yuki; Inagaki, Akiko; Tabata, Hidetsugu; Oshitari, Tetsuta; Natsugari, Hideaki; Takahashi, Hideyo published the artcile< Rapid Photoracemization of Chiral Alkyl Aryl Sulfoxides>, Synthetic Route of 699-12-7, the main research area is alkyl aryl sulfoxide photoracemization oxidation potential.

The photoracemization of chiral alkyl aryl sulfoxides with a photosensitizer has not been sufficiently investigated thus far. Therefore, in this study, a rapid photoracemization reaction of enantiopure alkyl aryl sulfoxides using 1 mol % 2,4,6-triphenylpyrylium tetrafluoroborate (TPT+) was developed. Various substitution patterns were tolerated and every racemization reaction proceeded extremely fast (k2 = 1.77 x 104-6.08 x 101 M-1s-1, t1/2 = 0.4-114 s). Some chiral sulfoxides with easily oxidizable functional groups are not appropriate for this photoisomerization. The electrochem. potentials of the functional groups, determined via cyclic voltammetry, are useful for predicting the reactive or nonreactive groups in this photoracemization reaction. A calculation study was conducted to clarify the sp2-like nature of S of the sulfoxide cation radical, which makes photoracemization easier.

Journal of Organic Chemistry published new progress about Aromatic compounds, sulfoxides Role: PRP (Properties), PUR (Purification or Recovery), RCT (Reactant), SPN (Synthetic Preparation), PREP (Preparation), RACT (Reactant or Reagent). 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Synthetic Route of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wandee, Yuree; Uttapap, Dudsadee; Mischnick, Petra published the artcile< Yield and structural composition of pomelo peel pectins extracted under acidic and alkaline conditions>, Electric Literature of 3458-28-4, the main research area is pomelo peel pectin yield structural composition acidic alk.

Extraction of pectin from pomelo peel was performed using water, acid and alk. solutions with a microwave power of 1100 W for 2 min, and yield and structural/chem. characteristics of the extracted pectins were investigated. Extraction of pectin with water gave the lowest yield (6.5%, dry weight basis). The water-extracted pectin contained the highest amount of neutral sugar (29.5%), while equivalent mol. weight (MWeq) and degree of methylation (DM) were 43 kDa and 29.7%, resp. Extraction of pectin with HCl solutions at concentrations of 25, 50, 100 and 200 mM resulted in a significant increase of pectin yields (12.1-20.5%) and pectins with high amount of galacturonic acid (83.3-85.6%). The MWeq and DM of the acid-extracted pectins ranged from 171 to 368 kDa and 53.9-82.5%, resp. Compared to the acid, extraction with NaOH solutions at the same concentrations provided higher yields (13.9-24.2%), smaller size (142-187 kDa) and lower DM (<1.7%) pectins, while amount of galacturonic acid was comparable. The highest yield of extraction was found at a concentration of 50 mM for both HCl and NaOH solutions Extraction of pomelo peel with 50 mM NaOH solution by reduction of the microwave power to 550 W and extending the extraction time to 15 min resulted in an increase of pectin yield (29.2%) and pectin with smaller size (76 kDa). Food Hydrocolloids published new progress about Acid hydrolysis. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Electric Literature of 3458-28-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts