Tag: M.W=150-200

de Groot, Anton published the artcile< Linalool Hydroperoxides>, Synthetic Route of 78-70-6, the main research area is review linalool hydroperoxide.

A review. Linalool is a fragrance widely used in cosmetics and household products. Until recently, contact allergy to linalool was considered rare because pos. patch tests to it were infrequently observed In recent years, however, it has been demonstrated that exposure of linalool to oxygen (air) results in formation of a number of oxidation products, of which the hydroperoxides have a far stronger sensitizing potency than the pure compound By routine testing of patients suspected of having contact dermatitis with hydroperoxides of linalool, high frequencies of pos. reactions were found, indicating these chems. are important fragrance allergens. It should be realized, however, that a number of “”pos.”” reactions may well be false-pos., irritant responses.

Dermatitis published new progress about Odor and Odorous substances. 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

Shu, Xu; Zhang, Yanfen; Jia, Jinxia; Ren, Xiaojie; Wang, Yufeng published the artcile< Extraction, purification and properties of water-soluble polysaccharides from mushroom Lepista nuda>, COA of Formula: C6H12O6, the main research area is Lepista water soluble polysaccharide; Antioxidant; Extraction; Lepista nuda; Polysaccharide; Purification.

Lepista nuda has high nutritional and medicinal value, especially has high antioxidant, antitumor and antiviral activities. Based on results of single factor experiment, response surface methodol. was used to optimize the extraction conditions of polysaccharides (LNP). Macroporous resin D301 was used to decolorization, and its technol. conditions were determined by orthogonal experiment In addition, two novel polysaccharides (LNP-1, LNP-2) were purified by DEAE Cellulose-52 and Sephadex G-150 chromatog. The mol. weight of LNP-1 is 11,703 Da, mainly composed of mannose, glucose, galactose, xylose, arabinose and fucose, while the mol. weight of LNP-2 is 13,369 Da, mainly composed of mannose, glucose, galactose, arabinose and fucose. The polysaccharide contents of crude LNP, LNP-1 and LNP-2 were 70.60%, 87.71% and 81.20% resp., and the protein contents were 1.72%, 0.97% and 0.68% resp. Their sulfuric contents were 3.39%, 5.02% and 8.64%, and uronic acid contents were 3.66%, 5.56% and 6.80%, resp. Further studies showed that their ability to chelate iron ions, scavenge DPPH (1,1-diphenyl-2-picrylhydrazyl) free radicals and scavenge superoxide anion radicals were 70.09%, 55.94% and 36.64% resp. They showed strong ability to scavenge free radicals in a concentration-dependent manner. LNP is expected to be developed as a new efficacy factor in the food industry.

International Journal of Biological Macromolecules published new progress about Cyclocybe cylindracea. 3458-28-4 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, COA of Formula: C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Chen, Yanhong; Chang, Shenzhen; An, Haiyan; Li, Yanqin; Zhu, Qingshan; Luo, Huiyun; Huang, Yaohui published the artcile< Two Polymorphic Polyoxometalate-Based Metal-Organic Frameworks for the Efficient Synthesis of Functionalized Sulfoxides and Detoxification of Mustard Gas Simulants>, Electric Literature of 699-12-7, the main research area is zinc bipyridine polyoxometalate MOF preparation crystal structure oxidation catalyst; XPS zinc bipyridine polyoxometalate MOF.

The development of high-efficient catalysts for the oxidation reaction of sulfides received much attention in recent years due to the extensive applications of such reactions from the utility in pharmaceutical chem. and biol. to the detoxification of chem. warfare agents in war. Herein, the authors report two innovative polyoxometalate-based metal-organic frameworks (POMOFs) {[ε-PMoV8MoVI4O37(OH)3][Zn2(C10N2H8)(H2O)2]2}2·8H2O (1-α and 1-β), which were characterized by elemental anal., UV-visible diffuse reflectance spectroscopy, x-ray single-crystal and powder diffraction, XPS, and FTIR spectroscopy techniques. Single-crystal x-ray diffraction anal. indicates that 1-α and 1-β are polymorphic with the identical compositions and analogical structures. Compounds 1-α and 1-β are both connected by Zn4-ε-Keggin polyoxoanions and 4,4′-bipyridine (bpy) ligands to form twofold interpenetrated three-dimensional POMOF structures. 1-β can be seen as a rotational polymorph of 1-α, i.e., 1-α takes the b axis as the rotation axis and rotates ~39° clockwise to obtain 1-β. Both compounds 1-α and 1-β can be used as heterogeneous catalysts to catalyze the selective oxidation of multitudinous sulfides with H2O2 as an oxidant. When the oxidation of Me Ph sulfide was used as the template reaction, the yield of Me Ph sulfoxide is ∼100% within 30 min by 1-α and 1-β and the oxidant use efficiency is >93%. Gratifying catalytic effects also were achieved in the selective oxidation of Ph and aliphatic sulfide derivatives Simultaneously, both 1-α and 1-β showed an extraordinary degradation efficiency of 2-chloroethyl Et sulfide and have a half lifetime (t1/2) ∼2.5 or 3 min, resp., with 100% selectivity toward the nontoxic product 2-chloroethyl Et sulfoxide and an abnormally high oxidant use efficiency (94.5% for 1-α and 94.3% for 1-β) at room temperature In addition, after seven cycles and continuous cycle catalytic experiments, their structures remained and catalytic activities did not decrease obviously, revealing their outstanding recyclability and structural stability.

ACS Sustainable Chemistry & Engineering published new progress about Crystal structure. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, Electric Literature of 699-12-7.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Bao; Han, Xu; Li, Jian; Li, Chunpu; Liu, Hong published the artcile< Sulfoximines-assisted Rh(III)-catalyzed C-H activation and intramolecular annulation for the synthesis of fused isochromeno-1,2-benzothiazines scaffolds under room temperature>, COA of Formula: C8H10OS, the main research area is isochromenobenzothiazine preparation; phenylsulfoximide diazoisochroman imine annulation carbon hydrogen activation rhodium catalyst; C–H activation; benzothiazine; rhodium.; sulfoximide.

A mild and facile Cp*Rh(III)-catalyzed C-H activation and intramol. cascade annulation protocol has been proposed for the furnishing of highly fused isochromeno-1,2-benzothiazines I (R1 = H, 2-Me, 2-F, 4-Br, 3-OMe, (CH2)4, etc.; R2 = Me, Et, Ph, Bn, etc.; R3 = H, 10-Me,10-OMe, 11-Cl, 11-F, etc.) scaffolds using S-phenylsulfoximides R4C6H4S(O)(=NH)(R2) and 4-diazoisochroman-3-imine II (R5 = H, 7-Me, 6-OMe, 7-OMe, 6-Cl, etc.) as substrates under room temperature This method features diverse substituents and functional groups tolerance and relatively mild reaction conditions with moderate to excellent yields. Addnl., retentive configuration of sulfoximides in the conversion has been verified.

Molecules published new progress about C-H bond activation. 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, COA of Formula: C8H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Guan, Zhipeng; Zhu, Shuxiang; Wang, Siyuan; Wang, Huamin; Wang, Siyuan; Zhong, Xingxing; Bu, Faxiang; Cong, Hengjiang; Lei, Aiwen published the artcile< Electrochemical Oxidative Carbon-Atom Difunctionalization: Towards Multisubstituted Imino Sulfide Ethers>, COA of Formula: C8H10OS, the main research area is electrochem oxidative difunctionalization isocyanide imino sulfide ether stereoselective synthesis; electrochemistry; ethers; isocyanides; radicals; synthetic methods.

Ethers (C-O/S) are ubiquitously found in a wide array of functional mols. and natural products. Nonetheless, the synthesis of imino sulfide ethers, containing an N(sp2)=C(sp2)-O/S fragment, still remains a challenge because of its sensitivity to acid. Developed here in is an unprecedented electrochem. oxidative carbon-atom difunctionalization of isocyanides, providing a series of novel multisubstituted imino sulfide ethers. Under metal-free and external oxidant-free conditions, isocyanides react smoothly with simple and readily available mercaptans and alcs. [e.g., 4-fluorobenzenethiol + Et isocyanoacetate + methanol → (Z)-I (80% isolated)]. Importantly, the procedure exhibited high stereoselectivities, excellent functional-group tolerance, and good efficiency on large-scale synthesis, as well as further derivatization of the products.

Angewandte Chemie, International Edition published new progress about Aromatic thiols Role: RCT (Reactant), RACT (Reactant or Reagent). 699-12-7 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H10OS, COA of Formula: C8H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lulekal, Ermias; Tesfaye, Solomon; Gebrechristos, Selam; Dires, Kassahun; Zenebe, Tizazu; Zegeye, Nigus; Feleke, Gezu; Kassahun, Abayneh; Shiferaw, Yoseph; Mekonnen, Awol published the artcile< Phytochemical analysis and evaluation of skin irritation, acute and sub-acute toxicity of Cymbopogon citratus essential oil in mice and rabbits>, Name: 3,7-Dimethylocta-1,6-dien-3-ol, the main research area is Cymbopogon skin irritation acute toxicity essential oil phytochem; Acute toxicity; Biochemical analysis; Cymbopogon citratus; Histopathology; Skin irritation; Sub-acute toxicity.

Cymbopogon citratus essential oil has been shown to have antibacterial, antifungal, antiprotozoal, anti-carcinogenic, anti-inflammatory and antioxidant activities amongst others. This study was conducted to determine skin irritation, acute and subacute toxicity of C. citratus essential oil in mice and rabbits. The essential oil was analyzed using GC-MS. The essential oil at dose of 2000 mg/kg body weight was administered to mice for 21 consecutive days. The mice mortality, behavioral change, injury and other signs of illness were recorded once daily. Biochem. parameters were evaluated. Liver and kidney were taken after sacrifice for gross findings and histol. analyses. 10% ointment formulation of C. citratus oils was applied on the rabbit skin to determine skin irritation effects. The result revealed, the presence of citral (71.297%), myrcene (19.034%), 4, 5-epoxycarene (2.780%), linalool (1.713%), (S)-cis-verbenol (1.110%), linalool (1.713%), (S)-cis-verbenol (1.110%) and undecan-2-one (1.001%) in the C. citratus essential oil. There was no significant difference (p > 0.05) in the body weights, gross abnormalities of the organs and biochem. parameters compared to the control. No histopathol. changes were detected in the organs tested. 10% ointment formulation of C. citratus oils did not cause skin irritation. Anal. of results leads to the conclusion that Ethiopian C. citratus essential oil may be considered as relatively safe and non-toxic.

Toxicology Reports published new progress about Acute toxicity. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, Name: 3,7-Dimethylocta-1,6-dien-3-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Bergua, Fernando; Delso, Ignacio; Munoz-Embid, Jose; Lafuente, Carlos; Artal, Manuela published the artcile< Structure and properties of two glucose-based deep eutectic systems>, Product Details of C6H12O6, the main research area is glucose deep eutectic solvent thermophys property; Choline chloride; Citric acid; Glucose; Quercetin; Solubility; Thermophysical properties.

Continued industrialization and increasing environmental problems have highlighted the need to research new eco-friendly solvents, also known as deep eutectic solvents (DESs). To implement these solvents in industrial processes, the knowledge of their mol. organization and thermophys. properties must be enhanced. In this work, two DESs have been characterized: d-glucose:choline chloride:water (GCH) and d-glucose:citric acid:water (GCiH). NMR techniques were used to analyze both the supramol. structure and the role of water and to calculate the diffusion coefficients Moreover, seven thermophys. properties at several temperatures were evaluated. As a second aim, the solubility of quercetin was determined NMR studies showed a stronger supramol. structure of GCH and a high ratio of β-glucose in both DESs. Based on the thermophys. results, the solvent with choline chloride had the most compact fluid structure. Finally, the solubility of quercetin in the DESs was higher than in water, especially for GCH.

Food Chemistry published new progress about Density. 492-62-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C6H12O6, Product Details of C6H12O6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Ji, Hyegeun; Kim, Hoikyung; Beuchat, Larry R.; Ryu, Jee-Hoon published the artcile< Synergistic antimicrobial activities of essential oil vapours against Penicillium corylophilum on a laboratory medium and beef jerky>, Electric Literature of 78-70-6, the main research area is Penicillium essential oil vapor antimicrobial synergism beef jerky; Beef jerky; Essential oil vapours; Intermediate-moisture food; Penicillium corylophilum; Synergistic antifungal effect; Xerophilic mold.

This study was done to determine the antifungal activities of essential oil (EO) vapors of 97 plants against Penicillium corylophilum and to test combinations of EO vapors for synergistic antifungal effects. Among 97 com. available EOs extracted from plant parts, garlic, cinnamon bark, may chang (mountain pepper), citronella, thyme thymol, oregano, spearmint, and thyme linalool EO vapors exhibited relatively strong antifungal activities. The minimal inhibitory concentrations of these EO vapors were 0.0390-0.6250 μL/mL. A combination of cinnamon bark, citronella, and may chang EO vapors, as well as a combination of cinnamon bark and citronella EO vapors, showed synergistic inhibitory activities to P. corylophilum on a laboratory medium. A combination of cinnamon bark, citronella, and may chang EO vapors had synergistic activity in inhibiting growth of P. corylophilium on beef jerky. Observations reported here provide basic information valuable when developing strategies to inhibit the growth of P. corylophilum and possibly other moderately xerophilic molds on intermediate-moisture foods.

International Journal of Food Microbiology published new progress about Allium sativum. 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

Alfonzo, Edwin; Hande, Sudhir M. published the artcile< Photoredox and Weak Bronsted Base Dual Catalysis: Alkylation of α-Thio Alkyl Radicals>, Related Products of 699-12-7, the main research area is radical alkylation thioether photoredox Bronsted base dual catalysis.

We report the C-H activation of thioethers to α-thio alkyl radicals and their addition to electron-deficient olefins to afford alkylated products through dual photoredox and weak Bronsted base catalysis. Mechanistic studies are consistent with a two-step activation mechanism, where oxidation of thioethers to their corresponding sulfide radical cations by an acridinium photoredox catalyst is followed with deprotonation by trifluoroacetate to generate α-thio alkyl radicals and trifluoroacetic acid (TFA). Exptl. studies support the involvement of TFA in all subsequent steps leading to product formation.

ACS Catalysis published new progress about Alkenes, electron-deficient Role: RCT (Reactant), RACT (Reactant or Reagent). 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

Huang, Fei; Hong, Ruiyue; Yi, Yang; Bai, Yajuan; Dong, Lihong; Jia, Xuchao; Zhang, Ruifen; Wang, Guangjin; Zhang, Mingwei; Wu, Jian published the artcile< In vitro digestion and human gut microbiota fermentation of longan pulp polysaccharides as affected by Lactobacillus fermentum fermentation>, Related Products of 3458-28-4, the main research area is Lactobacillus Dimocarpus fermentation polysaccharide gut; Digestion; Fermentation; Longan polysaccharide.

This study investigated the effect of Lactobacillus fermentum fermentation treatment on the gastrointestinal digestion and fermentation in vitro of polysaccharides from longan pulp. Polysaccharide isolated from unfermented and fermented longan pulp named LP and LP-F, resp. The mol. weight of LP-F declined from 109.62 ± 10.66 kDa to 51.46 ± 6.26 kDa while that of LP declined from 221.63 ± 2.41 kDa to 69.68 ± 2.36 kDa with gastrointestinal digestion. At same time, the reducing sugars content of LP and LP-F were both increased significantly. In addition, after 48 h gut microbiota fermentation, there were more total short chain fatty acids and acetic acid, as well as more Enterococcus, Bifidobacterium, and Clostridium in LP-F fermentation culture than those in LP fermentation culture. Moreover, LP-F fermentation culture showed lower pH value and less residual carbohydrate percentage than that of LP. These results indicated that LP-F is easier than LP to be fermented by human gut microbiota.

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

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts