Tag: M.W=200-250

Murillo-Cremaes, Nerea published the artcileNanostructured silica-based drug delivery vehicles for hydrophobic and moisture sensitive drugs, SDS of cas: 328-90-5, the publication is Journal of Supercritical Fluids (2013), 34-42, database is CAplus.

Facile and robust fabrication methodologies of complex materials with high added value for controlled drug delivery systems are highly sought-after in the pharmaceutical industry. Here, the authors have relied on the use of supercritical fluids for the matrix synthesis as well as for the drug impregnation process. As a model system of a hydrophobic and moisture sensitive active agent, triflusal was impregnated in different aerogel and polymeric matrixes using supercritical CO₂. In vitro release profiles of drug carriers consisting of SiO₂ aerogels as mesoporous monoliths and as microporous nanospheres loaded with triflusal are reported and compared to a more conventional polymeric system (PMMA). Silica-based matrixes are found to prevent the hydrolization of the active ingredient more efficiently than the polymeric matrix and displayed much faster release kinetics. Moreover, the triflusal is dispersed in a mol. form inside the silica-based materials. Such features are considered of great interest to enhance the bioavailability of low solubility drugs.

Journal of Supercritical Fluids published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C8H5F3O3, SDS of cas: 328-90-5.

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

Veres, Peter published the artcileHybrid aerogel preparations as drug delivery matrices for low water-solubility drugs, COA of Formula: C8H5F3O3, the publication is International Journal of Pharmaceutics (Amsterdam, Netherlands) (2015), 496(2), 360-370, database is CAplus and MEDLINE.

A comprehensive study of 14 hybrid aerogels of different composition with applications in drug delivery has been carried out. The overall objective was to modulate the release behavior of drug-impregnated aerogels, from an almost instantaneous release to a semi-retarded delivery prolonged during several hours, through internal surface functionalization. The designed hybrid aerogels were composed of silica and gelatin and functionalized with either Ph, long (16) hydrocarbon chain or Me moiety. As model systems, three class II active agents (pK_a < 5.5), ibuprofen, ketoprofen and triflusal, were chosen to impregnate the aerogels. The work relied on the use of supercritical fluid technol. for both the synthesis and functionalization of the hybrid aerogels, as well as for the impregnation with an active agent using supercritical CO₂ as a solvent. For the impregnated aerogels, in vitro release profiles were recorded under gastric and intestinal pH-conditions using HPLC techniques. The release behavior observed for the three studied drugs was explained considering the measured dissolution profiles of the crystalline drugs, the aerogel composition and its functionalization. Such features are considered of great interest to tailor the bioavailability of drugs with low water solubility

International Journal of Pharmaceutics (Amsterdam, Netherlands) published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C16H24BF4Ir, COA of Formula: C8H5F3O3.

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

Inman, Chiraporn published the artcileAlternative application approach on black bean: hair coloring product, Computed Properties of 70445-33-9, the publication is Chemical and Biological Technologies in Agriculture (2020), 7(1), 2, database is CAplus.

Abstract: Background: Black bean is one of the important beans as the second most consumed bean globally after soybean. It has been reported as a sustainable source of anthocyanins, important natural colorants used in food and consumer products. However, industrial uses of black bean anthocyanins in pharmaceutics and cosmetics have rarely been explored. Thus, here, a black bean anthocyanin extract was prepared, quality controlled and developed into an efficient hair coloring product. Results: Black bean was macerated in hydrochloric ethanol to produce a dark-reddish 1.85 ± 0.04% dry extract with total anthocyanin content (TAC) of 1.24 ± 0.48 μg/mL cyanidin-3-glucoside. The extract was readily dissolved in propylene glycol (25%), giving a reddish to red-brownish solution at pH of 4.00-7.00. The addition of antioxidant significantly (p = 0.000) enhanced the stability of the extract in an accelerated stability test (90.34 ± 5.32 from 67.83 ± 3.45% TAC remaining). Three base hair gels containing different thickeners were developed to yield clear gels with a viscosity of 101,666.67-447,333.33 cps and a pH of 4.80-4.97. The gel base with the best hair application properties was chosen to mix with 8, 10 and 12% black bean extract to produce similar visually assessed red-brown gels (L* = 33.25-33.76, a* = 0.06-0.09, b* = – 0.45-0.38 and h* = 277.54-283.31) at 73,733.33-99,666.67 cps and a pH of 5.00-5.01. All of the black bean hair coloring gels were stable under the accelerated test. The 10% hair gel was tested for its hair staining efficacy. The black bean hair coloring gel was found to efficiently color hair, and the color was maintained through four washings. Conclusions: An alternative application approach of using black bean as a natural colorant is presented here, including its basic requirements for preparation and quality control from an industrial aspect. The efficient semi-permanent hair coloring product containing black bean is an innovative natural product and is considered as one progress towards a sustainable bio-based economy using a readily available industrial crop, black bean. [graphic not available: see fulltext]

Chemical and Biological Technologies in Agriculture published new progress about 70445-33-9. 70445-33-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is 3-((2-Ethylhexyl)oxy)propane-1,2-diol, and the molecular formula is C11H24O3, Computed Properties of 70445-33-9.

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

Wang, Yinling published the artcileRedox-neutral photocatalytic strategy for selective C-C bond cleavage of lignin and lignin models via PCET process, Recommanded Product: 2-Phenoxy-1-phenylpropane-1,3-diol, the publication is Science Bulletin (2019), 64(22), 1658-1666, database is CAplus.

A redox-neutral photocatalytic strategy to accomplish this goal in both β-O-4 and β-1 lignin models at room temperature (RT) via proton-coupled electron transfer (PCET) process without any pretreatments of substrate, by adjusting the alkalinity of base to obtain a lignin models/base PCET pair with a bond dissociation free energy close to 102 kcal/mol was developed. Without breaking down C_β-C_γ bond and any C-O bonds, this PCET method is 100% atom economy and produces exclusive C_α-C_β bond cleavage products, such as benzaldehydes (up to 97%) and Ph ethers (up to 96%), in high to excellent yields and selectivities. Preliminary studies indicated that the PCET strategy was also effective for the depolymerization of native lignin at RT, thus providing significantly important foundation to the depolymerization of lignin.

Science Bulletin published new progress about 70110-65-5. 70110-65-5 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Alcohol,Ether,Benzene Compounds, name is 2-Phenoxy-1-phenylpropane-1,3-diol, and the molecular formula is C15H22BBrO3, Recommanded Product: 2-Phenoxy-1-phenylpropane-1,3-diol.

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

Wu, Huaimo published the artcileAn efficient approach for the synthesis of 1,2-dihydroxanthones enabled by one-pot Claisen condensation/cyclization reactions, Name: 2-Hydroxy-4-(trifluoromethyl)benzoic acid, the publication is Organic & Biomolecular Chemistry (2021), 19(18), 4126-4131, database is CAplus and MEDLINE.

In this report, a mild, efficient and green method for the synthesis of 1,2-dihydroxanthones (DHXs) I (R = H, Me, 3-methylbut-2-en-1-yl; R¹ = H, Me; R² = Me, Ph, 2,2,2-trifluoroethyl, but-3-en-1-yl, etc.; R³ = H, Me; R⁴ = H, F, OMe, Cl, Br, I; R⁵ = H, Me, OMe, Cl, CF₃, F; R⁴R⁵ = -CH:CHCH:CH-; R⁶ = H, Cl, Me, prop-2-en-1-yl) and II (R⁷ = H, OMe) has been developed in one pot through Claisen condensation and O-cyclization under waste-induced relay catalysis with min. organic solvents. The byproduct (HMDS or NH₃·H₂O) of the first step turned out to be the promoter for the second step, which could efficiently proceed in aqueous media without the addition of other catalysts. The reactions using trifluoroethyl salicylates 2-OH-3-R⁶-4-R⁵-5-R⁴-6-R³C₆HC(O)OCH₂CF₃ could be performed under mild conditions to ensure the generation of vulnerable DHXs I and II in high yields. The substrate scope is very broad regardless of the substituent type and its position on the structure. Specifically, the versatility of DHXs I (R = R¹ = R³ = R⁴ = R⁵ = R⁶ = H; R² = Me) was demonstrated by their conversion to xanthones I (R = 3-methylbut-2-en-1-yl; R¹ = R³ = R⁴ = R⁵ = R⁶ = H; R² = Me)/II (R⁷ = H) and other complex structures III/IV.

Organic & Biomolecular Chemistry published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C18H28BNO2, Name: 2-Hydroxy-4-(trifluoromethyl)benzoic acid.

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

Hu, Dejin published the artcileSynthesis and herbicidal activities of N^ε-[(anilino)carbonyl]-N^α-[(3-phenyl-5-isoxazolyl)carbonyl]lysine, HPLC of Formula: 438565-33-4, the publication is Youji Huaxue (2010), 30(9), 1366-1371, database is CAplus.

Recently the D1 protease located in the thylakoid membranes of higher plants was found to be a potential herbicide target and based on a lead compound [N^α-[(5-isoxazolyl)carbonyl]lysine, D1 protease inhibitor] a series of novel N⁵-[(phenylamino)carbonyl]-N₂-[(3-phenyl-5-isoxazolyl)carbonyl]lysine derivatives were designed. The synthesis of the target compounds was achieved using as reactants 3-phenyl-5-isoxazolecarbonyl chlorides and N⁵-[(phenylamino)carbonyl]lysine and the products thus obtained were confirmed by IR, ¹H-NMR and elemental anal. The biol. activity was examined in vivo and it was discovered that most compounds possessed moderate herbicidal activity. Meanwhile, the e activity of one compound was evaluated against spinach D1 protease (i.e., thylakoid protein precursor processing peptidase, chloroplast protein precursor-processing proteinase, photosystem D1 protein precursor carboxyl-terminal processing proteinase, proteinase CtpA) and the result showed its inhibiting effect against this enzyme.

Youji Huaxue published new progress about 438565-33-4. 438565-33-4 belongs to alcohols-buliding-blocks, auxiliary class Isoxazole,Chloride,Benzene,Alcohol, name is 3-(2-Chlorophenyl)-5-isoxazolemethanol, and the molecular formula is C10H8ClNO2, HPLC of Formula: 438565-33-4.

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

Shao, Xinxin published the artcileCopper-Catalyzed Trifluoromethylthiolation of Primary and Secondary Alkylboronic Acids, COA of Formula: C15H21BO2, the publication is Organic Letters (2014), 16(18), 4738-4741, database is CAplus and MEDLINE.

A Cu-catalyzed trifluoromethylthiolation of primary and secondary alkylboronic acids with an electrophilic trifluoromethylthiolating reagent is described. Tolerance for a variety of functional groups was observed

Organic Letters published new progress about 608534-44-7. 608534-44-7 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic,Boronic acid and ester,Boronate Esters,Boronic Acids,Boronic acid and ester, name is 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C12H9NO, COA of Formula: C15H21BO2.

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

Wei, Dian published the artcileDecarboxylative Borylation of mCPBA-Activated Aliphatic Acids, Formula: C15H21BO2, the publication is Organic Letters (2020), 22(1), 234-238, database is CAplus and MEDLINE.

A decarboxylative borylation of aliphatic acids for the synthesis of a variety of alkylboronates was developed by mixing m-chloroperoxybenzoic acid (mCPBA)-activated fatty acids with bis(catecholato)diboron in DMF at room temperature A radical chain process is involved in the reaction which initiates from the B-B bond homolysis followed by the radical transfer from the B atom to the C atom with subsequent decarboxylation and borylation.

Organic Letters published new progress about 608534-44-7. 608534-44-7 belongs to alcohols-buliding-blocks, auxiliary class Other Aromatic,Boronic acid and ester,Boronate Esters,Boronic Acids,Boronic acid and ester, name is 2-(2,3-Dihydro-1H-inden-2-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, and the molecular formula is C5H10O2S, Formula: C15H21BO2.

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

Zheng, Yi published the artcileCopper-Catalyzed Cleavage of Aryl C(OH)-C Bonds to Access Aryl Nitriles, Category: alcohols-buliding-blocks, the publication is ChemistrySelect (2021), 6(47), 13546-13550, database is CAplus.

It was found that aryl nitriles could be synthesized by cleavage of aryl C(OH)-C bonds in the presence of oxygen gas, (NH₄)₂CO₃ and Cu(OAc)₂. The present protocol allowed various secondary aryl alcs. to underwent the present transformation to give aryl nitriles in low to high yields. Lignin-related β-O-4 and β-1 linkages could be converted to benzonitriles under the present conditions, which provides an avenue to obtain value nitrile products via fragmentation of lignin.

ChemistrySelect published new progress about 70110-65-5. 70110-65-5 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Alcohol,Ether,Benzene Compounds, name is 2-Phenoxy-1-phenylpropane-1,3-diol, and the molecular formula is C12H23N3S, Category: alcohols-buliding-blocks.

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

Wu, Yi-Xin published the artcileCd-Doped Polyoxotitanium Nanoclusters with a Modifiable Organic Shell for Photoelectrochemical Water Splitting, Synthetic Route of 328-90-5, the publication is Inorganic Chemistry (2021), 60(24), 19263-19269, database is CAplus and MEDLINE.

Incorporating heterometal and chromogenic groups into the titanium oxo cluster (TOC) nanomaterials is one of the effective strategies for the development of new high-performance photoelec. active materials. In this Article, the authors report the structures and photoelectrochem. (PEC) performances of a family of TOCs, including pure [Ti₁₂O₈(OEt)₁₆L₈] ({Me-Ti₁₂}) and six Cd-doped clusters formulated as [H₄Cd₂Ti₁₀O₈(OEt)₁₆(L)₈(H₂O)₂] ({Cd₂Ti₁₀}; L = salicylic acid and their derivatives). The six Cd-doped clusters are isostructural, containing the same {Cd₂Ti₁₀O₈} core, but are protected by salicylic ligands modified with different functional groups. The compositions, structures, and solution stability of these clusters were studied in detail by single-crystal x-ray diffraction and electrospray ionization mass spectrometry measurements. The embedding of heterometallic Cd(II) and chem. modification of organic protective shells can effectively regulate the PEC water oxidation activity of those clusters, with {F-Cd₂Ti₁₀} having the highest turnover number of 518.55 and the highest turnover frequency of 172.85 h^-1. The authors’ work highlights the potential of using TOCs that do not contain noble metals as water oxidation catalysts, and their catalytic activity can be regulated by structural modification.

Inorganic Chemistry published new progress about 328-90-5. 328-90-5 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Carboxylic acid,Benzene,Phenol, name is 2-Hydroxy-4-(trifluoromethyl)benzoic acid, and the molecular formula is C3H6O2, Synthetic Route of 328-90-5.

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