Month: October 2022

Zhang, Yu-Feng; Mellah, Mohamed published the artcile< Samarium(II)-electrocatalyzed chemoselective reductive alkoxylation of phthalimides>, Safety of But-3-en-1-ol, the main research area is phthalimide alkanol samarium catalyst electrochem selective reductive alkoxylation; alkoxy isoindolinone preparation.

The unprecedented samarium electrocatalyzed reductive alkoxylation of phthalimides in a single step was presented. Under mild conditions, using electrogenerated Sm(II) with TMSCl (tri-Me chlorosilane), N-substituted 3-alkoxyl isoindolin-1-ones were isolated in good to excellent yields with high functional group tolerance.

Organic Chemistry Frontiers published new progress about Aliphatic alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 627-27-0 belongs to class alcohols-buliding-blocks, and the molecular formula is C4H8O, Safety of But-3-en-1-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Sandberg-Gertzen, H.; Kjellander, J.; Sundberg-Gillaa, B.; Jaarnerot, G. published the artcile< In vitro effects of sulphasalazine, azodisal sodium, and their metabolites on Clostridium difficile and some other fecal bacteria>, Quality Control of 6054-98-4, the main research area is Clostridium sulphasalazine azodisal sodium sensitivity; fecal bacteria sulphasalazine azodisal sodium sensitivity.

The effects of sulphasalazine (SASP), azodisal sodium (ADS), and their metabolites were tested in vitro on aerobic and anaerobic fecal bacterial strains. Sulphapyridine (SP) had a mild-to-moderate effect on Escherichia coli and Streptococcus faecalis. SASP also had a growth-inhibitory effect on S. faecalis. The other substances had no effect on aerobic strains. SASP, SP, 5-aminosalicylic acid, and, to a certain extent, N-acetyl-5-aminosalicylic acid exerted a growth-inhibitory effect on anaerobic strains. Of special interest was the inhibitory effect on Clostridium difficile strains. Some studies suggested that SASP treatment could predispose to C. difficile superinfection, whereas others found SASP more probable to exert a prophylactic effect. The findings support the theory that SASP treatment reduces rather than promotes the risk of C. difficile superinfection.

Scandinavian Journal of Gastroenterology published new progress about Clostridium difficile. 6054-98-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C14H8N2Na2O6, Quality Control of 6054-98-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Libo; Li, Tengfei; Liu, Fangcheng; Liu, Dawei; Xu, Yaqin; Yang, Yu; Zhao, Yanbo; Wei, He published the artcile< Ultrasonic-assisted enzymatic extraction and characterization of polysaccharides from dandelion (Taraxacum officinale) leaves>, Computed Properties of 3458-28-4, the main research area is polysaccharide ultrasonic enzymic extraction leaf Taraxacum; Dandelion; Polysaccharides; Simulated digestion; Structural characterization; Ultrasonic-assisted enzymatic extraction.

Ultrasonic-assisted enzymic extraction (UAEE) technol. was employed to extract the polysaccharides from dandelion leaves (DLP). The extraction conditions were optimized by response surface method (RSM) and Box-Behnken design (BBD). The polysaccharide yield (14.05 ± 0.95%), which well matched with the predicted value of 14.27%, was obtained under the optimum parameters: ultrasound power 500 W, ultrasound time 42 min, cellulase amount 4.90%, and particle size 80 mesh. After purification by AB-8 Macroporous Resin and Sephadex G-100 column, a novel polysaccharide (DLP-I) was isolated and its mol. weight was estimated to be 87,000 g/mol by high performance liquid chromatog. (HPLC). Gas chromatog. (GC) anal. showed that DLP-I was composed of rhamnose, arabinose, mannose, galactose and glucose in the molar ratio of 1.14:1.00:1.05:4.76:1.52. 1D and 2D NMR spectra confirmed that the backbone of DLP-I was mainly consisted of →4)-α-D-Galp-(1→, →4)-β-D-Manp-(1→, →4)-α-D-Glcp-(1→, →2,4)-α-L-Rhap-(1→, and α-L-Araf-(1→ with branching at O-2 and O-4 of →2,4)-α-L-Rhap-(1→. In addition, the digestion results showed DLP-I could keep its stability during the simulated digestive juices.

International Journal of Biological Macromolecules published new progress about Food processing. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Computed Properties of 3458-28-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ghorbani-Choghamarani, Arash; Moradi, Parisa; Tahmasbi, Bahman published the artcile< Nickel(II) immobilized on dithizone-boehmite nanoparticles: as a highly efficient and recyclable nanocatalyst for the synthesis of polyhydroquinolines and sulfoxidation reaction>, Related Products of 699-12-7, the main research area is polyhydroquinoline sulfoxidation reaction nickel dithizone boehmite nanoparticle.

In this work, in the first stage, boehmite nanoparticles were easily fabricated via addition of NaOH solution to a solution of Al(NO3)3.9H2O at room temperature in water. Then, nickel-dithizone catalyst was supported on boehmite nanoparticles (Ni-dithizone@boehmite). Ni-dithizone@boehmite is a low-cost, nontoxic, and recoverable catalyst, which provides an environment friendly reaction conditions. In the second stage, catalytic activity of this catalyst was studied in the synthesis of polyhydroquinoline derivatives and selective oxidation of sulfides to sulfoxides. The reactions not require very high temperatures or inert atm. The developed heterogeneous catalyst could be easily separated by centrifugation and recycled for several runs without leaching of Nickel from the surface of the catalyst or significant loss of its catalytic activity.

Journal of the Iranian Chemical Society published new progress about Nanocatalysts. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Related Products of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chen, Cheng; Wang, Minyan; Lu, Hongjian; Zhao, Binlin; Shi, Zhuangzhi published the artcile< Enabling the Use of Alkyl Thianthrenium Salts in Cross-Coupling Reactions by Copper Catalysis>, Recommanded Product: (4-Ethynylphenyl)methanol, the main research area is internal alkyne chemoselective photochem preparation; terminal alkyne thianthrenium salt Sonogashira copper catalyst; alkane chemoselective preparation; alkyl thianthrenium trifluoromethanesulfonate Grignard reagent Kumada copper catalyst; alkynylation; copper; photoredox reactions; radical; sulfonium salts.

Here, a series of thianthrenium salts was synthesized that act as reliable alkylation reagents and readily engage in copper-catalyzed Sonogashira reactions to build C(sp3)-C(sp) bonds under mild photochem. conditions. Diverse alkyl thianthrenium salts, including Me and disubstituted thianthrenium salts, were employed with great functional breadth, since sensitive Cl, Br, and I atoms, which were poorly tolerated in conventional approaches, were compatible. The generality of developed alkyl reagents had also been demonstrated in copper-catalyzed Kumada reactions.

Angewandte Chemie, International Edition published new progress about Alkynes, internal Role: SPN (Synthetic Preparation), PREP (Preparation). 10602-04-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C9H8O, Recommanded Product: (4-Ethynylphenyl)methanol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Jiao; Yin, Shan; Wang, Haimei; Li, Hongfang; Ni, Guanghui published the artcile< A visible light promoted O-glycosylation with glycosyl trichloroacetimidates using eosin Y as an organo photoacid>, Quality Control of 4064-06-6, the main research area is photoacid catalyzed glycosylation glycosyl trichloroacetimidate fluorescein bromofluorescein irradiation glycoside; O-Glycosylation; Photoacid catalysis; Visible light photocatalysis.

A photoacid catalyzed O-glycosylation of alcs. with glycosyl trichloroacetimidates in the presence of com. available phenolic photoacids, fluorescein, 4′,5′-dibromo-fluorescein, and eosin Y under visible light irradiation by blue LEDs was developed. The method is operationally simple without neutralization and proceeds at room temperature

Carbohydrate Research published new progress about Glycosides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 4064-06-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C12H20O6, Quality Control of 4064-06-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Tressl, Roland; Kersten, Evelyn; Wondrak, Georg; Rewicki, Dieter; Kruger, Ralph-Peter published the artcile< Fragmentation of sugar skeletons and formation of Maillard polymers>, Formula: C6H9NO, the main research area is fragmentation pathway sugar skeleton; Maillard polymer formation.

Labeling experiments involving the reaction of 13C-labeled hexoses, pentoses, and D-lactose with 4-aminobutyric acid (GABA) (isoleucine) are described. The distribution of the label was investigated by MS and gave an insight into the formation pathways leading to complementary labeled compounds from hexoses and pentoses with intact carbon skeletons and indicated distinct fragmentations of the sugar skeletons into C5- and C4-compounds (furans, N-alkylpyrrolemethanols, N-alkyl-2-formylpyrroles and N-alkylpyrroles). These compounds undergo polycondensations to melanoidin-like macromols. under mild reaction conditions. In a series of model experiments, different types of polymers were investigated, and individual oligomers (e.g. I) were characterized by 1H/13C-NMR spectroscopy and FAB-/MALDI-TOF-MS. The authors postulate that these polycondensation reactions represent the most important driving force in the Maillard reaction.

Special Publication – Royal Society of Chemistry published new progress about Fragmentation reaction. 52160-51-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H9NO, Formula: C6H9NO.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wei, Zewei; Huang, Lianfang; Cui, Liao; Zhu, Xiao published the artcile< Mannose: Good player and assister in pharmacotherapy>, Synthetic Route of 3458-28-4, the main research area is review mannose anticancer agent cancer; Cancer; Mannose; Medicinal function; Nanovaccine; Photodynamic therapy.

A review. Mannose is a monosaccharide widely distributed in body fluids and tissues, especially in the nerve, skin, testicles, retina, liver and intestines. It is used to synthesize glycoproteins and participate in immune regulation. In recent years, mannose has been applied more and more widely in the biomedical context as people have a deeper understanding of its biol. effects. This review introduces the use of mannose in treating various diseases (including cancer, urinary tract infections, type 1 diabetes, and diabetic wounds), preventing pancreatic fistula, and improving magnetic resonance imaging for acute pancreatitis. We also demonstrate that mannose has the potential for clin. applications.

Biomedicine & Pharmacotherapy published new progress about Acute pancreatitis. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Synthetic Route of 3458-28-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bayat, Yadollah; Shirini, Farhad; Goli-Jolodar, Omid published the artcile< Selective oxidation of sulfides to sulfoxides using novel nano Bronsted dicationic ionic liquid as effective reagent under grinding conditions>, SDS of cas: 699-12-7, the main research area is sulfoxide preparation green chem; sulfide selective oxidation nano bronsted dicationic ionic liquid.

In this work, 1,1′-(butane-1,4-diyl)bis(1,4-diazabicyclo[2.2.2]octane-1,4-diium) bis(hydrogen sulfate) dinitrate ([C4(DABCO-H)2]·[HSO4]2[NO3]2) as a novel Bronsted dicationic ionic liquid was prepared with available starting materials, and characterized by FT-IR, 1H NMR, 13C NMR, TGA, DSC, SEM and FESEM techniques. This nano-sized regent was efficiently employed in selective oxidation of sulfides to sulfoxides at room temperature, under grinding and solvent-free condition. A simple method, short reaction times, high yields, green and easy work-up of the products, use of com. cheap starting materials and excellent selectivity are attractive features of the present method.

Journal of Molecular Liquids published new progress about Green chemistry. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, SDS of cas: 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fan, Xiaojing; Jiao, Xin; Liu, Jinguang; Jia, Meng; Blanchard, Chris; Zhou, Zhongkai published the artcile< Characterizing the volatile compounds of different sorghum cultivars by both GC-MS and HS-GC-IMS>, Formula: C8H18O, the main research area is sorghum volatile compound GC MS IMS; GC-IMS; GC-MS; Odor-active value; Sorghum; Volatile compound.

The current study applied both GC-MS and GC-IMS for characterizing volatile compounds of six Australian sorghum cultivars. For raw sorghum, the result of GC-MS showed that ester compounds were abundant in six raw samples. Among these esters, the content of hexadecanoic acid Et ester was highest in all of the raw samples. Compound 3-octanone only existed in Apollo, Bazley and Liberty, and 2-undecanone was found to be in MR43. Result of GC-IMS showed that signals of benzaldehyde, 2,3-butanedione were generally noted in six raw samples. In general, The Apollo and Buster had more volatile compounds, followed by Bazley and Liberty. In contrast, MR43 and G44 had least volatile compounds For cooked sorghums, more fatty aldehydes are formed compared to its corresponding raw sample, in which current data indicated that 40 volatile compounds were identified by GC-MS, and 11 of them were identified as the key aroma compounds More important, variation in the compounds of hexanal, heptanal, octanal, 2-heptenal, nonanal, trans- 2-octenal, benzeneaceldehyde, (E)-2-nonenal, 1-octen-3-ol, 1-pentanol, 2-methoxy-4-vinylphenol and 2-pentylfuran might be applied for explaining the aroma characteristics among six sorghum cultivars. Result of GC-IMS showed that 26 volatile compounds but not in results from GC-MS detection, indicating advantage of methodol. combination for a better understanding impact of cultivars and cooking on volatile characteristics of sorghums.

Food Research International published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 104-76-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H18O, Formula: C8H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts