Category: alcohols-buliding-blocks

Huang, Mingming published the artcileBase-Mediated Radical Borylation of Alkyl Sulfones, COA of Formula: C5H12O, the main research area is borylation alkylsulfone preparation boronate neopentyl ester base catalyst; boron; boronate; boronic acid; metal-free; radical.

A practical and direct method was developed for the production of versatile alkyl boronate esters via transition metal-free borylation of primary and secondary alkyl sulfones. The key to the success of the strategy is the use of bis(neopentyl glycolato) diboron (B2neop2), with a stoichiometric amount of base as a promoter. The practicality and industrial potential of this protocol are highlighted by its wide functional group tolerance, the late-stage modification of complex compounds, no need for further transesterification, and operational simplicity. Radical clock, radical trap experiments, and EPR studies were conducted which show that the borylation process involves radical intermediates.

Chemistry – A European Journal published new progress about Borylation. 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, COA of Formula: C5H12O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Friese, Florian W. published the artcileDeoxygenative Borylation of Secondary and Tertiary Alcohols, HPLC of Formula: 124-76-5, the main research area is deoxygenative borylation secondary tertiary alc xanthate oxalate; boronic acid ester preparation; alcohols; borylation; deoxygenation; photoredox catalysis; radical reactions.

Two different approaches for the deoxygenative radical borylation of secondary and tertiary alcs. are presented. These transformations either proceed through a metal-free silyl-radical-mediated pathway or utilize visible-light photoredox catalysis. Readily available xanthates or Me oxalates are used as radical precursors. The reactions show broad substrate scope and high functional-group tolerance, and are conducted under mild and practical conditions.

Angewandte Chemie, International Edition published new progress about Borylation. 124-76-5 belongs to class alcohols-buliding-blocks, name is rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, and the molecular formula is C10H18O, HPLC of Formula: 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Hong-Yan published the artcileThe chemical, sensory, and volatile characteristics of instant sweet tea (Lithocarpus litseifolius [Hance] Chun) using electronic nose and GC-MS-based metabolomics analysis, Synthetic Route of 124-76-5, the main research area is Lithocarpus litseifolius chem sensory volatile electronic nose GCMS metabolomics.

This study aims to investigate the effect of instant tea processing on the chem., sensory, and volatile profiles of sweet tea. Young leaves of Lithocarpus litseifolius [Hance] Chun were extracted and dried with freeze-drying and spray-drying, resp. The contents of proteins, polysaccharides, total phenolics, total flavonoids, and free amino acids in instant teas were found to be higher than those in sweet tea. A total of 268 volatiles were identified by HS-SPME-GC-MS, and 88 compounds showed significant differences among different samples, and most of volatile compounds showed lower concentrations in instant tea powder than sweet tea powder. Nine aroma attributes were evaluated through descriptive sensory anal. Sweet tea had a higher intensity of woody, green, floral, fruity, and sweet descriptor, while the instant sweet teas demonstrated the higher intensity of caramel-like attribute. Our study emphasized the nutritive value of instant sweet tea, while the aroma needs to be improved further.

LWT–Food Science and Technology published new progress about Flavonoids Role: ANT (Analyte), FFD (Food or Feed Use), ANST (Analytical Study), BIOL (Biological Study), USES (Uses). 124-76-5 belongs to class alcohols-buliding-blocks, name is rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, and the molecular formula is C10H18O, Synthetic Route of 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Fellechner, Oliver published the artcileLong-Chain Alcohol-Modified Micellar Systems and Their Application in a Continuous Extraction Process, Quality Control of 111-87-5, the main research area is long chain alc micellar extraction micelle surfactant purification.

The integration of an in situ extraction into biocatalytic processes is often limited by the toxicity of organic solvents. Therefore, it is desirable to use water-based extraction systems (for example, aqueous micellar two-phase systems). They can be used, for instance, for the extraction of valuable products from microalgae cultures. Recently, the nonionic surfactant ROKAnol NL5 was identified as a suitable surfactant for this purpose, since it forms an upper micellar phase, enabling an easy separation of whole-cell biocatalysts. However, its application at temperatures below 45 °C is limited by unstable phase boundaries, whereas the maximal temperature to ensure the vitality of the most microalgae cultures is ∼40 °C. To overcome this problem, the addition of long-chain alcs. to the surfactant-water mixture during extraction is suggested in this work. Using 1-hexanol, a continuous extraction process with the model solute trans-cinnamic acid at 40 °C in a stirred column could be realized. The results of a new suggested water/ROKAnol NL5/1-hexanol system at 40 °C (extraction yield, Ycont = 97.67% ± 0.14%; enrichment factor, log10TCA = 2.42 ± 0.03; number of theor. stages, Ntheo = 4.45 ± 0.16) are comparable to those of the water/ROKAnol NL5 system at 45 °C (Ycont = 99.26% ± 0.24%, log10TCA = 2.60 ± 0.10, Ntheo = 5.88 ± 0.67), ensuring, however, no damage of microalgae.

Industrial & Engineering Chemistry Research published new progress about Micellar extraction. 111-87-5 belongs to class alcohols-buliding-blocks, name is n-Octanol, and the molecular formula is C8H18O, Quality Control of 111-87-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kong, Ying-Ying published the artcileIridium-Catalyzed α-Alkylation of Arylacetonitriles Using Secondary and Primary Alcohols, SDS of cas: 584-02-1, the main research area is alkylated arylacetonitrile green preparation; alc arylacetonitrile alpha alkylation iridium catalyst.

In the presence of NaOtBu, [Cp*IrCl2]2-catalyzed reaction of arylacetonitriles with alcs. was performed to yield α-monoalkylation products of arylacetonitriles such as I [R1 = (CH2)2CH3, (CH2)4CH3, CH2(CH2)2Ph, etc .; R2 = H, Ph; R1 = R2 = Me, Et; R1R2 = CH2(CH2)2CH2, CH2(CH2)3CH2, CH2(CH2)5CH2, etc.; Ar = Ph, 4-PhC6H4, 2-naphthyl, etc.]. The catalyst and conditions also suited for the α-monoalkylation of arylacetonitriles with primary alcs.

Asian Journal of Organic Chemistry published new progress about Alcohols Role: RCT (Reactant), RACT (Reactant or Reagent). 584-02-1 belongs to class alcohols-buliding-blocks, name is 3-Pentanol, and the molecular formula is C5H12O, SDS of cas: 584-02-1.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

von Poser, Gilsane L. published the artcileEssential Oil Composition and Allelopathic Effect of the Brazilian Lamiaceae Hesperozygis ringens (Benth.) Epling and Hesperozygis rhododon Epling, Computed Properties of 42822-86-6, the main research area is Hesperozygis oil composition; terpene Hesperozygis oil.

Samples of Hesperozygis ringens (Benth.) Epling and Hesperozygis rhododon Epling essential oils were analyzed by a combination of anal. techniques: capillary gas chromatog., liquid/solid chromatog., GC/MS coupling, and NMR spectroscopy. Twenty-four components have been identified representing altogether more than 95% of the oil content. The oil of H. ringens is constituted mainly by pulegone (79.2%) accompanied by several oxygenated derivatives (pulegone oxides, 1.2%; 8-hydroxy-p-menth-3-one, 1.3%; and 8-hydroxy-p-menth-4-en-3-one, 3.7%); that of H. rhododon contains menthone and pulegone as main compounds in almost comparable amounts (43.4% and 29.6%, resp.). Tests carried out on lettuce seeds using alc. extracts of the two species showed significant antigerminating properties mainly for H. ringens. The same activity was observed with its essential oil.

Journal of Agricultural and Food Chemistry published new progress about. 42822-86-6 belongs to class alcohols-buliding-blocks, name is 2-(2-Hydroxypropan-2-yl)-5-methylcyclohexanol, and the molecular formula is C10H20O2, Computed Properties of 42822-86-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Snyder, Brittany L. published the artcileDrug Delivery and Drug Efficacy from Amorphous Poly(thioether anhydrides), Product Details of C17H28O8S4, the main research area is polythioether anhydride drug delivery efficacy; drug delivery; lidocaine; poly(thioether anhydride); surface erosion.

The correlation between erosion and drug (lidocaine and 6-mercaptopurine, 6-MP) release from amorphous poly(thioether anhydrides), which are synthesized using radical-mediated thiol-ene polymerization, is reported. Cytotoxicity studies of the polymer toward human fibroblast human dermal fibroblasts adult, melanoma A-375, and breast cancer MCF-7 cells are conducted, and drug efficacy of a cancer and autoimmune disease drug (6-MP) when released from the poly(thioether anhydrides) is examined against two cancerous cell types (A-375 and MCF-7). Erosion and drug release studies reveal that lidocaine release is governed by network erosion whereas 6-MP is released by a combination of erosion and diffusion. The cytotoxicity studies show that all three cell types demonstrate high viability, thus cytocompatibility, to poly(thioether anhydrides). Toxicity to the material is dose dependent and comparable to other polyanhydride systems. The 6-MP cancer drug is shown to remain bioactive after encapsulation in the poly(thioether anhydride) matrix and the polymer does not appear to modify the efficacy of the drug.

Macromolecular Bioscience published new progress about Biocompatibility, cytocompatibility. 7575-23-7 belongs to class alcohols-buliding-blocks, name is Pentaerythritol tetra(3-mercaptopropionate), and the molecular formula is C17H28O8S4, Product Details of C17H28O8S4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Rouchaud, Anne published the artcileA new and efficient synthesis of derivatives of octahydro-4H-pyrrolo[1,2-c]pyrido[1′,2′-a]imidazole, Computed Properties of 87905-98-4, the main research area is octahydropyrrolopyridoimidazole preparation.

When di-Et malonate was added to a solution of Δ1-piperideine, generated in situ by oxidative desamination and decarboxylation of L-lysine by N-bromosuccinimide (NBS), formation of the unexpected tricyclic compound I was observed The structure of I was deduced from anal. of its spectroscopic data and was confirmed both by chem. degradation and by total synthesis. We proved that 3-bromo-1-piperideine was implicated in its formation. Moreover, based on this feature, a new and efficient synthesis of I was developed. The elaborated pathway was adapted to access derivatives related to I that differed in their C-4 substituent.

European Journal of Organic Chemistry published new progress about Michael reaction. 87905-98-4 belongs to class alcohols-buliding-blocks, name is Benzyl (5-hydroxypentyl)carbamate, and the molecular formula is C13H19NO3, Computed Properties of 87905-98-4.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Faltracco, Matteo published the artcileDiastereoselective Synthesis of β-Lactams by Ligand-Controlled Stereodivergent Intramolecular Tsuji-Trost Allylation, Computed Properties of 22483-09-6, the main research area is diastereoselective intramol Tsuji Trost allylation ligand controlled stereodivergent; beta lactam stereoselective preparation.

The diastereoselective synthesis of highly substituted β-lactams by intramol. Tsuji-Trost allylation is reported. Judicious selection of the ligand on palladium allows selective access to either the trans isomer (in generally good to excellent yield with very high diastereomeric excess) or cis isomer (with yields and diastereoselectivity ranging from modest to excellent depending on the substrate). The reaction proceeds under exceedingly mild conditions (rt, no additives) with a broad range of substrates, which are readily accessible by the Ugi reaction.

Journal of Organic Chemistry published new progress about Diastereoselective synthesis. 22483-09-6 belongs to class alcohols-buliding-blocks, name is 2,2-Dimethoxyethanamine, and the molecular formula is C4H11NO2, Computed Properties of 22483-09-6.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Li, Yiming published the artcileSelective Late-Stage Oxygenation of Sulfides with Ground-State Oxygen by Uranyl Photocatalysis, COA of Formula: C4H10OS, the main research area is photooxidation catalyst uranyl sulfide sulfoxide sulfone; oxygen; oxygenation; photocatalysis; sulfides; uranyl catalysis.

Oxygenation is a fundamental transformation in synthesis. Herein, we describe the selective late-stage oxygenation of sulfur-containing complex mols. with ground-state oxygen under ambient conditions. The high oxidation potential of the active uranyl cation (UO22+) enabled the efficient synthesis of sulfones. The ligand-to-metal charge transfer process (LMCT) from O 2p to U 5f within the O::U::O group, which generates a UV center and an oxygen radical, is assumed to be affected by the solvent and additives, and can be tuned to promote selective sulfoxidation This tunable strategy enabled the batch synthesis of 32 pharmaceuticals and analogs by late-stage oxygenation in an atom- and step-efficient manner.

Angewandte Chemie, International Edition published new progress about Cell proliferation. 505-10-2 belongs to class alcohols-buliding-blocks, name is 3-(Methylthio)propan-1-ol, and the molecular formula is C4H10OS, COA of Formula: C4H10OS.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts