Category: alcohols-buliding-blocks

Colella, L. published the artcileOutside rules inside: the role of electron-active substituents in thiophene-based heterophenoquinones, Application of 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, the publication is Physical Chemistry Chemical Physics (2015), 17(16), 10426-10437, database is CAplus and MEDLINE.

The biradicaloid vs. quinoidal character of the ground state of thiophene-based heterophenoquinones bearing donor or acceptor groups is investigated. Keeping the conjugation length fixed, namely, the 5,5′-bis(3,5-di-tert-butyl-4-oxo-2,5-cyclohexadiene-1-ylidene)-2,2′-dihydroxy bithiophene backbone, an opposite effect occurs depending on the donating or withdrawing nature of the substituents. The character of the ground state depends not only on the electronic nature of the substituents but also on their position on the mol. skeleton: donor groups on the 3,3′-positions of the bithiophene central core stabilize a quinoidal ground state, whereas a biradicaloid electronic structure results from the introduction of the same donor groups onto the lateral phenones. Withdrawing groups behave similar to donors, but in the opposite direction.

Physical Chemistry Chemical Physics published new progress about 239075-02-6. 239075-02-6 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Boronic acid and ester,Boronate Esters, name is 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene, and the molecular formula is C20H28B2O4S2, Application of 5,5′-Bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,2′-bithiophene.

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

Salomon, Marcel Ahijado published the artcileStepwise oxygenation of pinacolborane by a rhodiumperoxo complex: detection of an intermediate metal borate and perborate, Quality Control of 25240-59-9, the publication is Angewandte Chemie, International Edition (2008), 47(46), 8867-8871, database is CAplus and MEDLINE.

Acting as go-between: A Rh borate and perborate were identified as intermediates in the Rh-mediated oxygenation of pinacolborane (HBpin). The Rh(III)-peroxo complex reacts with the Lewis acidic B compound HBpin by O transfer from the Rh center to HBpin to give a Rh(I) species. The reaction sequence might play a crucial role in the homocoupling of boronic acid.

Angewandte Chemie, International Edition published new progress about 25240-59-9. 25240-59-9 belongs to alcohols-buliding-blocks, auxiliary class Boronic acid and ester,Boronic Acids,Boronate Esters, name is 4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-ol, and the molecular formula is C6H13BO3, Quality Control of 25240-59-9.

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

Tomar, Pooja published the artcilePhotochemical activation of SF₆ by N-heterocyclic carbenes to provide a deoxyfluorinating reagent, Synthetic Route of 2240-88-2, the publication is Chemical Communications (Cambridge, United Kingdom) (2018), 54(70), 9753-9756, database is CAplus and MEDLINE.

The activation of the greenhouse gas SF₆ using electron-rich N-heterocyclic carbenes gave 2,2-difluoroimidazolines or 2,2-difluoroimidazolidines as well as 2-thio derivatives of the carbene precursors. The N-heterocyclic carbenes can also convert SF₄ to give similar products. The difluoroimidazolidine derivatives were applied in deoxyfluorination reactions. Furthermore, the activation of SF₆ and the fluorination can be coupled in a one-pot process to convert 1-octanol into 1-fluorooctane.

Chemical Communications (Cambridge, United Kingdom) published new progress about 2240-88-2. 2240-88-2 belongs to alcohols-buliding-blocks, auxiliary class Trifluoromethyl,Fluoride,Aliphatic hydrocarbon chain,Alcohol, name is 3,3,3-Trifluoropropan-1-ol, and the molecular formula is C7H13BrSi, Synthetic Route of 2240-88-2.

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

Lin, Jian-Dong published the artcileWettability-Driven Palladium Catalysis for Enhanced Dehydrogenative Coupling of Organosilanes, Quality Control of 597-52-4, the publication is ACS Catalysis (2017), 7(3), 1720-1727, database is CAplus.

Direct coupling of Si-H bonds has emerged as a promising strategy for designing chem. and biol. useful organosilicon compounds Heterogeneous catalytic systems sufficiently active, selective, and durable for dehydrosilylation reactions under mild conditions have been lacking to date. Herein, we report that the hydrophobic characteristics of the underlying supports can be advantageously utilized to enhance the efficiency of palladium nanoparticles (Pd NPs) for the dehydrogenative coupling of organosilanes. As a result of this prominent surface wettability control, the modulated catalyst showed a significantly higher level of efficiency and durability characteristics toward the dehydrogenative condensation of organosilanes with water, alcs., or amines in comparison to existing catalysts. In a broader context, this work illustrates a powerful approach to maximize the performance of supported metals through surface wettability modulation under catalytically relevant conditions.

ACS Catalysis published new progress about 597-52-4. 597-52-4 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic Chain, name is Triethylsilanol, and the molecular formula is C6H16OSi, Quality Control of 597-52-4.

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

Ma, Qian published the artcileIntegrated proteomic and metabolomic analysis of a reconstructed three-species microbial consortium for one-step fermentation of 2-keto-L-gulonic acid, the precursor of vitamin C, Recommanded Product: (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, the publication is Journal of Industrial Microbiology & Biotechnology (2019), 46(1), 21-31, database is CAplus and MEDLINE.

Microbial consortia, with the merits of strong stability, robustness, and multi-function, played critical roles in human health, bioenergy, and food manufacture, etc. On the basis of ‘build a consortium to understand it’, a novel microbial consortium consisted of Gluconobacter oxydans, Ketogulonicigenium vulgare and Bacillus endophyticus was reconstructed to produce 2-keto-L-gulonic acid (2-KGA), the precursor of vitamin C. With this synthetic consortium, 73.7 g/L 2-KGA was obtained within 30 h, which is comparable to the conventional industrial method. A combined time-series proteomic and metabolomic anal. of the fermentation process was conducted to further investigate the cell-cell interaction. The results suggested that the existence of B. endophyticus and G. oxydans together promoted the growth of K. vulgare by supplying addnl. nutrients, and promoted the 2-KGA production by supplying more substrate. Meanwhile, the growth of B. endophyticus and G. oxydans was compromised from the competition of the nutrients by K. vulgare, enabling the efficient production of 2-KGA. This study provides valuable guidance for further study of synthetic microbial consortia.

Journal of Industrial Microbiology & Biotechnology published new progress about 526-98-7. 526-98-7 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Other Sugar Units, name is (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, and the molecular formula is C6H10O7, Recommanded Product: (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid.

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

Cui, Yuan-Yuan published the artcileSolvent regulation and template-free synthesis of β-cyclodextrin-based microporous organic network nanosheets for ultrafast and efficient removal of aromatic pollutants, Name: 4,4′-Sulfonyldiphenol, the publication is Chemical Engineering Journal (Amsterdam, Netherlands) (2022), 435(Part_1), 134829, database is CAplus.

Layer-stacking structures via the template-free synthesis are rare in two-dimensional microporous organic networks (2D MONs). Herein, we report a facile solvent regulation and template-free strategy by tuning the aggregation degree of 2D β-cyclodextrin (CD)-based MONs nanosheets. The 2D MON nanosheets provided larger uptake capacity and faster kinetics than the aggregated CD-MONs, revealing the significance of morphol. control for the removal of pollutants. The prepared 2D CD-MON-DMF gave ultrafast adsorption kinetics and exhibited much larger saturation sorption capacity (327.9 mg g^-1) than previous adsorbents for bisphenol AF. The developed strategy not only provides a novel way to construct 2D MON nanosheets for highly efficient removal of organic pollutants from water but also promotes the utilization of MONs in material and environmental sciences.

Chemical Engineering Journal (Amsterdam, Netherlands) 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, Name: 4,4′-Sulfonyldiphenol.

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

Naykodi, Pradnya S. published the artcileTaste masking of bitter drugs by using ion exchange resin method, Recommanded Product: trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride, the publication is World Journal of Pharmaceutical Research (2020), 9(2), 562-597, database is CAplus.

The various organoleptic properties such as taste, smell, texture also these are important factor in development of oral dosage forms. The taste is the major factor that affect the patient compliance and product quality. Acceptability of any dosage form mainly depends over its taste i.e. mouth feel. Drug mol. interact with taste receptor on the tongue to give bitter, sweet or other taste sensation, when they dissolve in saliva. The taste buds shows the sensation of taste by signal transduction from the receptor organs. Now a days most of the potent drugs that are cardiac, analgesic, anti-inflammatory, anti-tubercular, antibacterial, anthalmetics, antimalarial, antiepileptics, anticoagulants, histamine receptor agonist, antithyroids, antineoplastic, antiprotozoal, diuretics, nutritional agents, opioid analgesic, sex hormones, vaccines most of them are bitter in taste. So it become a necessary to develop such a dosage form that is acceptable for its taste by patients especially children or geriatrics. It becomes a challenge for pharmacist to make palatable formulation by masking the bitter taste of the drug.

World Journal of Pharmaceutical Research published new progress about 23828-92-4. 23828-92-4 belongs to alcohols-buliding-blocks, auxiliary class Membrane Transporter/Ion Channel,Sodium Channel, name is trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride, and the molecular formula is C13H19Br2ClN2O, Recommanded Product: trans-4-((2-Amino-3,5-dibromobenzyl)amino)cyclohexanol hydrochloride.

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

Wiechers, S. published the artcileTitanium dioxide particle size vs. sun protection performance, Application of 3-((2-Ethylhexyl)oxy)propane-1,2-diol, the publication is Cosmetics & Toiletries (2013), 128(5), 332, 334, 336, 338-339, database is CAplus.

The article compares the performance of titanium dioxide as a UV filter in cosmetic formulations as a function of its primary particle size. It was found that with increasing primary particle size, even below 100 nm, the effectiveness of the inorganic (mineral) UV filter was clearly reduced.

Cosmetics & Toiletries 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 C4H6BrFO2, Application of 3-((2-Ethylhexyl)oxy)propane-1,2-diol.

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

Dissette, Valeria published the artcileEvaluation of the transepidermal penetration of a carnosine complex in gel formulation by 3D skin models, Application of 3-((2-Ethylhexyl)oxy)propane-1,2-diol, the publication is Cosmetics (2018), 5(4), 67, database is CAplus.

Carnosine has several physiol. roles, from intracellular pH buffering to antioxidant activities, which all depend on bioavailability. This study was conducted in a human skin 3D model and focuses on the effects of the topical delivery of carnosine, from a dermo-cosmetic gel, through the stratum corneum in the presence of a magnesium ion as a complexing agent. To evaluate possible enhancement for small peptide delivery to the skin from simple cosmetic formulations, we discovered that complexation was able to improve the delivery of carnosine into human skin 3D models by application in gel formulation. The concentrations of carnosine released in the underlying media and those that remained in the reconstructed human epidermis (RHE) tissues after 24 and 48 h exposure were measured. Moreover, the influence of magnesium ions was also evaluated comparing the same formulation with and without the salt. The results obtained in this study support hypothesis that magnesium can influence the delivery of small peptides and that the gel formulation based on the carnosine-magnesium complex allows for superior delivery of carnosine in the lower skin layer at a concentration up to 60% more than carnosine alone.

Cosmetics 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, Application of 3-((2-Ethylhexyl)oxy)propane-1,2-diol.

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

Manoury, Philippe M. published the artcileSynthesis and antihypertensive activity of a series of 4-amino-6,7-dimethoxyquinazoline derivatives, Application In Synthesis of 101-98-4, the publication is Journal of Medicinal Chemistry (1986), 29(1), 19-25, database is CAplus and MEDLINE.

N²-[(Acylamino)alkyl]-6,7-dimethoxy-2,4-quinazolinediamines I (e.g., R, R¹, R², n = Me, Me, Ph, 2; Me, H, tetrahydro-2-furyl, 3) were synthesized as potential α₁-adrenoceptor antagonists. In rats at 10 mg/kg po, some I (n = 3) showed good antihypertensive activity, whereas I (n = 2) did not.

Journal of Medicinal Chemistry published new progress about 101-98-4. 101-98-4 belongs to alcohols-buliding-blocks, auxiliary class Amine,Benzene,Alcohol, name is 2-(Benzyl(methyl)amino)ethanol, and the molecular formula is C10H15NO, Application In Synthesis of 101-98-4.

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