Category: alcohols-buliding-blocks

Zhang, Youcan published the artcilePalladium-Catalyzed Carbonylative Four-Component Synthesis of β-Perfluoroalkyl Amides, HPLC of Formula: 20880-92-6, the publication is Chemistry – A European Journal (2021), 27(70), 17682-17687, database is CAplus and MEDLINE.

Transition-metal-catalyzed multicomponent carbonylation is one of the most efficient strategies to construct carbonyl-containing compounds Herein, a palladium-catalyzed four-component perfluoroalkylation/aminocarbonylation of unactivated alkenes with perfluoroalkyl halides, and amines was developed. A wide range of substrates, including anilines, alkylamines, sulfonamides, and hydrazines are all suitable reaction partners for this catalyst system, resulting in various β-perfluoroalkyl amides with good functional-group tolerance and excellent chemoselectivity. Furthermore, not only alkyl olefins, but also aliphatic alkynes, and even alkyl allenes can all be employed. Notably, several medical and bioactive related mols. are compatible here as well.

Chemistry – A European Journal published new progress about 20880-92-6. 20880-92-6 belongs to alcohols-buliding-blocks, auxiliary class Other Aliphatic Heterocyclic,Chiral,Alcohol, name is ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol, and the molecular formula is C19H14O2, HPLC of Formula: 20880-92-6.

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

Andrieux, Claude P. published the artcileEvidence for Inverted Region Behavior in Proton Transfer to Carbanions, Application of 3,3,3-Trifluoropropan-1-ol, the publication is Journal of the American Chemical Society (2003), 125(33), 10119-10124, database is CAplus and MEDLINE.

The diphenylmethane-diphenylmethyl anion acid/base couple in N,N-dimethylformamide is taken as an example for investigating the dynamics of proton transfer at carbon in a system where the acid is not activated by an electron-withdrawing group or by removal of an electron. The laser flash electron photoinjection technique is applied to the determination of the rate constant for the protonation of diphenylmethyl anion by an extended series of acids that offers a range of driving forces encompassing over 1.2 eV. The plot of the rate constant vs. the pK_a difference between diphenylmethane and the acids or of the activation free energy vs. the standard free energy of the reaction exhibits clear “inverted region” behavior (by a factor of 80 in terms of rate constants). While such behaviors have been predicted and observed for outer-sphere electron-transfer reactions, previous evidence for proton-transfer reactions was scarce. Entropic factors, derived from an investigation of the temperature dependence of the exptl. rate constants, are also discussed.

Journal of the American Chemical Society 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 C3H5F3O, Application of 3,3,3-Trifluoropropan-1-ol.

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

Xia, Shanghua published the artcileCopper-Catalyzed Hydroxylation of (Hetero)aryl Halides under Mild Conditions, Name: 4-(1H-Pyrrol-1-yl)phenol, the publication is Journal of the American Chemical Society (2016), 138(41), 13493-13496, database is CAplus and MEDLINE.

In the presence of Cu(acac)₂ and N,N’-bis(4-hydroxyl-2,6-dimethylphenyl)oxalamide, aryl and heteroaryl chlorides, bromides, and iodides underwent hydroxylation reactions in DMSO/H₂O to yield phenols and aryl and heteroaryl alcs. A wide range of aryl and heteroaryl chlorides bearing either electron-donating or electron-withdrawing groups underwent hydroxylation at 130 °C to provide the corresponding phenols and hydroxylated heteroarenes in 52-96% yields. When more reactive aryl and heteroaryl bromides and iodides were employed, the hydroxylation reactions could be performed at 80° and 60°, resp., using 0.5 mol% of Cu(acac)₂.

Journal of the American Chemical Society published new progress about 23351-09-9. 23351-09-9 belongs to alcohols-buliding-blocks, auxiliary class Pyrrole,Benzene,Alcohol, name is 4-(1H-Pyrrol-1-yl)phenol, and the molecular formula is C12H14BNO2, Name: 4-(1H-Pyrrol-1-yl)phenol.

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

Forni, Jose A. published the artcileCarbonylative Hydroacylation of Styrenes with Alkyl Halides by Multiphoton Tandem Photoredox Catalysis in Flow, Name: Pentane-1,5-diol, the publication is ACS Catalysis (2022), 12(16), 10018-10027, database is CAplus.

The photocatalytic carbonylative hydroacylation of styrenes (R¹)R²C=CH₂ (R¹ = H, Ph, Me, Et; R² = Ph, naphthalen-2-yl, pyridin-2-yl, thiophen-2-yl, etc.) with inactivated alkyl halides RX (R = Cyclohexyl, cyclopentyl, n-Bu, i-Pr, etc.; X = Br, I) was reported. This protocol unifies the visible-light multiphoton catalytic cycle of [Ir(ppy)₂(dtb-bpy)]⁺ with flow chem. to engage energy-demanding alkyl bromides and iodides at moderate pressures of carbon monoxide. The mild and practical methodol. was employed to prepare a diverse array of 43 unsym. dialkyl ketones RC(O)CH₂CH(R¹)R² from primary, secondary, and tertiary inactivated alkyl halides. The application of flow chem. technol. to achieve spatially resolved chemoselectivity and broad functional group tolerance for the mild generation of functionalized C(sp³)-rich ketone products was demonstrated.

ACS Catalysis published new progress about 111-29-5. 111-29-5 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Alcohol,Ploymers, name is Pentane-1,5-diol, and the molecular formula is C5H12O2, Name: Pentane-1,5-diol.

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

Akondi, Srirama Murthy published the artcileAerobic, Diselenide-Catalyzed Redox Dehydration: Amides and Peptides, Name: 4,4-Diethoxybutan-1-amine, the publication is Organic Letters (2018), 20(3), 538-541, database is CAplus and MEDLINE.

At 2.5 mol % loadings using reaction temperatures between 30-55 °C, ortho-functionalized diaryl diselenides are highly effective organocatalytic oxidants for aerobic redox dehydrative amidic and peptidic bond formation using tri-Et phosphite as a simple terminal reductant. This simple-to-perform organocatalytic reaction relies on the ability of selenols to react directly with dioxygen in air without recourse to metal catalysts. It represents an important step toward the development of a general, economical, and benign catalytic redox dehydration protocol.

Organic Letters published new progress about 6346-09-4. 6346-09-4 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Ether, name is 4,4-Diethoxybutan-1-amine, and the molecular formula is C8H19NO2, Name: 4,4-Diethoxybutan-1-amine.

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

Barik, Chandan Kr published the artcileRuthenacyclic Carbamoyl Complexes: Highly Efficient Catalysts for Organosilane Hydrolysis, Recommanded Product: Triisopropylsilanol, the publication is European Journal of Inorganic Chemistry (2018), 2018(46), 4982-4986, database is CAplus.

The ruthenacyclic carbamoyl complexes [RuX{2-NHC(O)C₅H₃NR}(CO)₂(NCMe)] (R = H and Me; X = Br and SC₆H₃-o,o-Me₂) are excellent catalysts for the hydrolysis of organosilanes, particularly towards primary silanes, generating H under ambient conditions within seconds. These complexes are structural mimics of the [Fe]-hydrogenase active site and like the natural enzyme, a labile ligand at the 6th coordination site is essential to the catalytic activity.

European Journal of Inorganic Chemistry published new progress about 17877-23-5. 17877-23-5 belongs to alcohols-buliding-blocks, auxiliary class Protection and Derivatization Reagent, name is Triisopropylsilanol, and the molecular formula is C9H22OSi, Recommanded Product: Triisopropylsilanol.

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

Barik, Chandan Kr published the artcileRuthenacyclic Carbamoyl Complexes: Highly Efficient Catalysts for Organosilane Hydrolysis, Safety of Triethylsilanol, the publication is European Journal of Inorganic Chemistry (2018), 2018(46), 4982-4986, database is CAplus.

The ruthenacyclic carbamoyl complexes [RuX{2-NHC(O)C₅H₃NR}(CO)₂(NCMe)] (R = H and Me; X = Br and SC₆H₃-o,o-Me₂) are excellent catalysts for the hydrolysis of organosilanes, particularly towards primary silanes, generating H under ambient conditions within seconds. These complexes are structural mimics of the [Fe]-hydrogenase active site and like the natural enzyme, a labile ligand at the 6th coordination site is essential to the catalytic activity.

European Journal of Inorganic Chemistry 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, Safety of Triethylsilanol.

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

Zhang, Meijie published the artcileEffect of hemabate combined with oxytocin on bleeding after cesarean section, Recommanded Product: 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, the publication is Xin Zhongyi (2015), 47(5), 185-186, database is CAplus.

Objective: To observe the effect of hemabate combined with oxytocin on bleeding after cesarean section. Methods: 116 cases of cesarean section women were randomly divided into a control group and an observation group. The control group received hemabate, while the observation group addnl. received oxytocin. Results: The total effective rate in the observation group was significantly higher than that in the control group. After treatment, the postpartum hemorrhage volume significantly decreased in both groups, and the observation group was significantly lower than that in the control group. There were no serious adverse reactions in both groups. Conclusion: Hemabate combined with oxytocin for maternal postoperative cesarean section can significantly reduce postpartum hemorrhage and improve clin. effect.

Xin Zhongyi published new progress about 58551-69-2. 58551-69-2 belongs to alcohols-buliding-blocks, auxiliary class Chiral,Alkenyl,Amine,Aliphatic cyclic hydrocarbon,Ester,Alcohol,Inhibitor,, name is 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid, and the molecular formula is C44H28ClFeN4, Recommanded Product: 2-Amino-2-(hydroxymethyl)propane-1,3-diol (Z)-7-((1R,2R,3R,5S)-3,5-dihydroxy-2-((S,E)-3-hydroxy-3-methyloct-1-en-1-yl)cyclopentyl)hept-5-enoic acid.

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

Qiao, Lin published the artcileScreening of ToxCast Chemicals Responsible for Human Adverse Outcomes with Exposure to Ambient Air, COA of Formula: C9H12O, the publication is Environmental Science & Technology (2022), 56(11), 7288-7297, database is CAplus and MEDLINE.

Air pollution poses a major threat to global public health. Although there have been a few investigations into the relationships between organic pollutants and adverse outcomes, the responsible components and mol. mechanisms may be ignored. In this study, a suspect screening method combining comprehensive two-dimensional gas chromatog. – time-of-flight mass spectrometry (GC x GC-TOFMS) with Toxicity Forecaster (ToxCast) database was applied to analyze complex hydrophobic compounds in ambient air and prospectively figure out toxicol. significant compounds 76 ToxCast compounds were screened, including 7 pollutants receiving less attention and 5 chems. never published in the air previously. Given the concentrations, bioactivities, as well as absorption, distribution, metabolism, and excretion properties in vivo, 29 contaminants were assigned high priority since they had active biol. effects in the vascular, lung, liver, kidney, prostate and bone tissues. Phenotypic linkages of key pollutants to potential mechanistic pathways were explored by systems toxicol. A total of 267 chem.-effect pathways involving 29 toxicants and 31 mol. targets were mapped in bipartite network, in which 12 key pathogenic pathways were clarified, which not only provided the evidence supporting previous hypothesis but also provided new insights into the mol. targets. The results would facilitate the development of pollutant priority control, population intervention and clin. therapeutic strategies so as to substantially reduce human health hazards induced by urban air.

Environmental Science & Technology published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, COA of Formula: C9H12O.

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

Ma, Lijuan published the artcileCharacterization of the key aroma-active compounds in high-grade Dianhong tea using GC-MS and GC-O combined with sensory-directed flavor analysis, Related Products of alcohols-buliding-blocks, the publication is Food Chemistry (2022), 132058, database is CAplus and MEDLINE.

Dianhong tea (DHT) is popular for its pleasant caramel-like aroma. In this study, the aroma profile of high-grade DHT have been studied using gas chromatog.-mass spectrometry (GC-MS) and gas chromatog.-olfactometry (GC-O) combined with headspace solid phase microextraction (HS-SPME). A total of 52 aroma-active compounds were identified by GC-O coupled with aroma extract dilution anal. (AEDA) and odor specific magnitude estimation (Osme). Among them, quantification of 21 aroma-active compounds indicated that the content of linalool (5928μg/kg) was the highest in high-grade DHT, followed by phenylethanol (3923μg/kg) and phenylacetaldehyde (1801μg/kg). Sensory-directed aroma recombination and omission tests further verified that phenylacetaldehyde, linalool, geraniol and 3-ethyl-2,5-dimethylpyrazine were important contributors to the overall sensory characteristics of high-grade DHT which dominated mainly by floral, sweet and caramel-like odors. This work will provide a theor. reference for comprehensively understanding the aroma characteristic of DHT.

Food Chemistry published new progress about 106-25-2. 106-25-2 belongs to alcohols-buliding-blocks, auxiliary class Natural product, name is cis-3,7-Dimethyl-2,6-Octadien-1-Ol, and the molecular formula is C10H18O, Related Products of alcohols-buliding-blocks.

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