Category: alcohols-buliding-blocks

Ma, Xiao-Yan published the artcileConcise and efficient syntheses of methyl 4-(1-methylpyrrolidin-2-yl)-3-oxobutanoate and hygrine, Synthetic Route of 6346-09-4, the publication is Canadian Journal of Chemistry (2020), 98(4), 191-193, database is CAplus.

Me 4-(1-methylpyrrolidin-2-yl)-3-oxobutanoate and hygrine are important biosynthetic intermediates for tropane alkaloids. A concise method to synthesize these two compounds from the key intermediate N-methylpyrrolinium cation has been developed. Me 4-(1-methylpyrrolidin-2-yl)-3-oxobutanoate and hygrine were obtained in four and six steps from com. available 4,4-diethoxybutylamine with overall yields of 42% and 25%, resp.

Canadian Journal of Chemistry 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, Synthetic Route of 6346-09-4.

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

Haag, Franziska published the artcileKey Food Furanones Furaneol and Sotolone Specifically Activate Distinct Odorant Receptors, Application of 2-Phenylethanethiol, the publication is Journal of Agricultural and Food Chemistry (2021), 69(37), 10999-11005, database is CAplus and MEDLINE.

Furanones formed during the Maillard reaction often are natural aroma-determining compounds found in numerous foods. Prominent economically relevant representatives are the structural homologues Furaneol and sotolone, which are important natural flavoring compounds because of their distinct caramel- and seasoning-like odor qualities. These, however, cannot be predicted by the odorants’ mol. shape, rather their receptors’ activation parameters help to decipher the encoding of odor quality. Here, the distinct odor qualities of Furaneol and sotolone suggested an activation of at least two out of our ca. 400 different odorant receptor types, which are the mol. biosensors of our chem. sense of olfaction. While an odorant receptor has been identified for sotolone, a receptor specific for Furaneol has been elusive. Using a bidirectional screening approach employing 616 receptor variants and 187 key food odorants in a HEK-293 cell-based luminescence assay, we newly identified OR5M3 as a receptor specifically activated by Furaneol and homofuraneol.

Journal of Agricultural and Food Chemistry published new progress about 4410-99-5. 4410-99-5 belongs to alcohols-buliding-blocks, auxiliary class Thiol,Benzene, name is 2-Phenylethanethiol, and the molecular formula is C8H10S, Application of 2-Phenylethanethiol.

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

Paula, Stefan published the artcileNovel phenolic inhibitors of the sarco/endoplasmic reticulum calcium ATPase: identification and characterization by quantitative structure-activity relationship modeling and virtual screening, Synthetic Route of 903-19-5, the publication is Journal of Enzyme Inhibition and Medicinal Chemistry (2015), 30(1), 1-8, database is CAplus and MEDLINE.

Inhibitors of the sarco/endoplasmic reticulum calcium ATPase (SERCA) are valuable research tools and hold promise as a new generation of anti-prostate cancer agents. Based on previously determined potencies of phenolic SERCA inhibitors, we created quant. structure-activity relationship (QSAR) models using three independent development strategies. The obtained QSAR models facilitated virtual screens of several com. compound collections for novel inhibitors. Sixteen compounds were subsequently evaluated in SERCA activity inhibition assays and 11 showed detectable potencies in the micro- to millimolar range. The exptl. results were then incorporated into a comprehensive master QSAR model, whose phys. interpretation by partial least squares anal. revealed that properly positioned substituents at the central Ph ring capable of forming hydrogen bonds and of undergoing hydrophobic interactions were prerequisites for effective SERCA inhibition. The established SAR was in good agreement with findings from previous structural studies, even though it was obtained independently using standard QSAR methodologies.

Journal of Enzyme Inhibition and Medicinal Chemistry published new progress about 903-19-5. 903-19-5 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Phenol, name is 2,5-Bis(2,4,4-trimethylpentan-2-yl)benzene-1,4-diol, and the molecular formula is C22H38O2, Synthetic Route of 903-19-5.

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

Pappenberger, Gunter published the artcileIndustrial Production of l -Ascorbic Acid (Vitamin C) and d -Isoascorbic Acid, Category: alcohols-buliding-blocks, the publication is Advances in Biochemical Engineering/Biotechnology (2014), 143-188, database is CAplus and MEDLINE.

A review. L -ascorbic acid (vitamin C) was first isolated in 1928 and subsequently identified as the long-sought antiscorbutic factor. Industrially produced l -ascorbic acid is widely used in the feed, food, and pharmaceutical sector as nutritional supplement and preservative, making use of its antioxidative properties. Until recently, the Reichstein-Grüssner process, designed in 1933, was the main industrial route. Here, d -sorbitol is converted to l -ascorbic acid via 2-keto- l -gulonic acid (2KGA) as key intermediate, using a bio-oxidation with Gluconobacter oxydans and several chem. steps. Today, industrial production processes use addnl. bio-oxidation steps with Ketogulonicigenium vulgare as biocatalyst to convert d -sorbitol to the intermediate 2KGA without chem. steps. The enzymes involved are characterized by a broad substrate range, but remarkable regiospecificity. This puzzling specificity pattern can be understood from the preferences of these enzymes for certain of the many isomeric structures which the carbohydrate substrates adopt in aqueous solution Recently, novel enzymes were identified that generate l -ascorbic acid directly via oxidation of l -sorbosone, an intermediate of the bio-oxidation of d -sorbitol to 2KGA. This opens the possibility for a direct route from d -sorbitol to l -ascorbic acid, obviating the need for chem. rearrangement of 2KGA. Similar concepts for industrial processes apply for the production of d -isoascorbic acid, the C5 epimer of l -ascorbic acid. d -isoascorbic acid has the same conformation at C5 as d -glucose and can be derived more directly than l -ascorbic acid from this common carbohydrate feed stock.

Advances in Biochemical Engineering/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, Category: alcohols-buliding-blocks.

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

Baell, Jonathan B. published the artcileNew Substructure Filters for Removal of Pan Assay Interference Compounds (PAINS) from Screening Libraries and for Their Exclusion in Bioassays, Related Products of alcohols-buliding-blocks, the publication is Journal of Medicinal Chemistry (2010), 53(7), 2719-2740, database is CAplus and MEDLINE.

This report describes a number of substructural features which can help to identify compounds that appear as frequent hitters (promiscuous compounds) in many biochem. high throughput screens. The compounds identified by such substructural features are not recognized by filters commonly used to identify reactive compounds Even though these substructural features were identified using only one assay detection technol., such compounds have been reported to be active from many different assays. In fact, these compounds are increasingly prevalent in the literature as potential starting points for further exploration, whereas they may not be.

Journal of Medicinal Chemistry published new progress about 17236-59-8. 17236-59-8 belongs to alcohols-buliding-blocks, auxiliary class Thiophene,Alcohol, name is Thiophen-3-ol, and the molecular formula is C4H4OS, Related Products of alcohols-buliding-blocks.

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

Burgers, Peter C. published the artcileMetastable ion studies. XIII. The measurement of appearance energies of metastable peaks, Product Details of C5H10O, the publication is Organic Mass Spectrometry (1982), 17(3), 123-6, database is CAplus.

A simple, accurate, and reproducible method for measuring the appearance energy of a metastable peak is reported. The method involves comparison of the metastable-peak intensity with that of a standard metastable peak, over a small range of ionizing electron energies above their onsets. Six fragmentation processes whose reaction energetics are well established, e.g., AcOMe→ MeC⁺O + OMe•, provided suitable metastable peaks for calibration. Results for fragmentations having large kinetic shifts, e.g., PhBr → [Ph]⁺ + Br•, and for primary and secondary ion decompositions are reported.

Organic Mass Spectrometry published new progress about 20117-47-9. 20117-47-9 belongs to alcohols-buliding-blocks, auxiliary class Aliphatic cyclic hydrocarbon,Alcohol, name is 1-Methylcyclobutan-1-ol, and the molecular formula is C5H10O, Product Details of C5H10O.

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

Yoshida, Tatsuki published the artcileTransition-Metal-Free O-Arylation of Alcohols and Phenols with S-Arylphenothiaziniums, Recommanded Product: ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol, the publication is Journal of Organic Chemistry (2022), 87(11), 7565-7573, database is CAplus and MEDLINE.

Herein, authors report the transition-metal-free O-arylation of alcs. and phenols with S-arylphenothiaziniums, which can be easily synthesized from boronic acids. Aryl substituents derived from arylboronic acids were selectively introduced into the hydroxy groups in alcs. and phenols, and a variety of aryl ethers were synthesized. This selectivity is supported by theor. calculations

Journal of Organic Chemistry 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 C8H5F3O3, Recommanded Product: ((3aS,5aR,8aR,8bS)-2,2,7,7-Tetramethyltetrahydro-3aH-bis([1,3]dioxolo)[4,5-b:4′,5′-d]pyran-3a-yl)methanol.

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

Wang, Limin published the artcileCharacterization of bitter-tasting and antioxidant activity of dry-hopped beers, Application of cis-3,7-Dimethyl-2,6-Octadien-1-Ol, the publication is Journal of the Science of Food and Agriculture (2022), 102(11), 4843-4853, database is CAplus and MEDLINE.

Bitter flavors and antioxidant activities are critical characteristics and indicators, resp., of beer quality. To gain a better understanding of dry-hopped beer′s bitterness, this work comprehensively evaluated the perceived bitterness intensity and bitterness attributes from aspects of beer aroma and non-volatile bitter compounds using sensory anal. under two conditions: (i) with and (ii) without nose clips. To quantify bitter and volatile compounds, the work conducted chromatog. analyses: high-performance liquid chromatog. (HPLC), ultra-performance liquid chromatog.-mass spectrometry (UPLC-MS) and gas chromatog.-mass spectrometry (GC-MS). Simultaneously, this work assessed the antioxidant activity of com. dry-hopped beers. First, dry-hopped beer in this study contained abundant non-volatile bitter compounds (hop bitter acids, polyphenols and flavonoids), and aroma was validated using HPLC, UPLC-MS and GC-MS methods. Moreover, the bitter-tasting perception test findings demonstrated that many dry-hopped beers had a higher bitterness intensity when evaluated without a nose clip, whereas this phenomenon was adverse in several ale beers. Addnl., the ′lingering′ and ′harsh′ characteristics were diminished when beer aroma was blocked out (with nose clip) for dry-hopped beer. Meanwhile, most dry-hopped beers had greater antioxidant activity than ale beers (P < 0.05). This work revealed the bitterness complexity of dry-hopped beer; besides non-volatile bitter compounds, beer aroma had an impact on the perceived bitterness intensity and attributes, and dry-hopped beer had a relatively intense antioxidant capacity. This study facilitated the development of a detailed knowledge about the assessment of bitter-tasting perceptions in dry-hopped beers and provided a basis for the development of functional beer benefiting human health. 2022 Society of Chem. Industry.

Journal of the Science of Food and Agriculture 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 C38H74Cl2N2O4, Application of cis-3,7-Dimethyl-2,6-Octadien-1-Ol.

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

Salplachta, Jiri published the artcileIdentification of bacterial uropathogens by preparative isoelectric focusing and MALDI-TOF mass spectrometry, COA of Formula: C6H13NO2, the publication is Journal of Chromatography A (2018), 232-237, database is CAplus and MEDLINE.

This study describes a new method for simultaneous identification of uropathogens in the case of polybacterial urinary tract infections. The method utilizes recently developed preparative isoelec. focusing (IEF) in cellulose-based separation medium with a subsequent anal. by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Preparative IEF was successfully used for both purification and separation of bacteria, Escherichia coli (pI 4.6) and Staphylococcus aureus (pI 3.4), in urine samples. The focused zones of bacteria, localized by the positions of focused colored pI markers, were easily collected from the separation media after the IEF anal. and then unambiguously identified by MALDI-TOF MS. The proposed method enables the identification of bacteria in urine specimens when the concentration of individual bacteria is ≥10⁴ cells mL^-1. Another benefit is the viability of bacteria extracted from the collected fractions after preparative IEF.

Journal of Chromatography A published new progress about 622-40-2. 622-40-2 belongs to alcohols-buliding-blocks, auxiliary class Morpholine,Alcohol, name is 2-Morpholinoethanol, and the molecular formula is C6H13NO2, COA of Formula: C6H13NO2.

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

Watanabe, Jun-ichi published the artcileFolded H-Stacking Polymers by Conformational Control with 2-Substituted Trimethylene Tethers, Synthetic Route of 239075-02-6, the publication is Macromolecules (Washington, DC, United States) (2010), 43(16), 6562-6569, database is CAplus.

Oligomers and polymers of type [-CH₂CHRCH₂-(π)-]_n comprising aryl units tethered by 2-substituted trimethylene were found to exist as a folding H-stacking structure in polar solvents such as CH₃CN and in film, which was evidenced by their blue-shifted UV absorption compared to that of the parent aryl compounds, and exhibited predominantly excimer-like emission. In addition, annealing of the films resulted in a unique layered structure, which may arise from the folded polymer form.

Macromolecules (Washington, DC, United States) 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 C8H10S, Synthetic Route of 239075-02-6.

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