Category: 124-76-5

Giboulot, Steven published the artcileFlat and Efficient HCNN and CNN Pincer Ruthenium Catalysts for Carbonyl Compound Reduction, Quality Control of 124-76-5, the main research area is arylpyridinylmethanamine benzoquinoline aminomethylpyridine HCNN CNN pincer ruthenium catalyst preparation; carbonyl compound reduction HCNN CNN pincer ruthenium catalyzed; aminomethylbenzoquinoline ruthenium phosphine carbonyl preparation crystal mol structure catalyst; aryl methyl ketone transfer hydrogenation catalyst preparation.

The bidentate HCNN dicarbonyl ruthenium complexes trans,cis-[RuCl2(HCNN)(CO)2] (1-3) and trans,cis-[RuCl2(ampy)(CO)2] (1a) were prepared by reaction of [RuCl2(CO)2]n with 1-[6-(4′-methylphenyl)pyridin-2-yl]methanamine, benzo[h]quinoline (HCNN), and 2-(aminomethyl)pyridine (ampy) ligands. Alternatively, the derivatives 1-3 were obtained from the reaction of RuCl3 hydrate with HCO2H and HCNN. The pincer CNN cis-[RuCl(CNN)(CO)2] (4) was isolated from 1 by reaction with NEt3. The monocarbonyl complexes trans-[RuCl2(HCNN)(PPh3)(CO)] (5-7) were synthesized from [RuCl2(dmf)(PPh3)2(CO)] and HCNN ligands, while the diacetate trans-[Ru(OAc)2(HCNN)(PPh3)(CO)] (8) was obtained from [Ru(OAc)2(PPh3)2(CO)]. Carbonylation of cis-[RuCl(CNN)(PPh3)2] with CO afforded the pincer derivatives [RuCl(CNN)(PPh3)(CO)] (9-11). Treatment of 9 with Na[BArf]4 and PPh3 gave the cationic complex trans-[Ru(CNN)(PPh3)2(CO)][BArf4] (12). The dicarbonyl derivatives 1-4, in the presence of PPh3 or PCy3, and the monocarbonyl complexes 5-12 catalyzed the transfer hydrogenation (TH) of acetophenone (a) in 2-propanol at reflux (S/C = 1000-100000 and TOF up to 100000 h-1). Compounds 1-3, with PCy3, and 6 and 8-10 were proven to catalyze the TH of carbonyl compounds, including α,β-unsaturated aldehydes and bulky ketones (S/C and TOF up to 10000 and 100000 h-1, resp.). The derivatives 1-3 with PCy3 and 5 and 6 catalyzed the hydrogenation (HY) of a (H2, 30 bar) at 70° (S/C = 2000-10000). Complex 5 was active in the HY of diaryl ketones and aryl Me ketones, leading to complete conversion at S/C = 10000.

Organometallics published new progress about Aryl ketones Role: RCT (Reactant), RACT (Reactant or Reagent). 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, Quality Control of 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Gong, Lingzhen published the artcileSelective construction of fused heterocycles by an iridium-catalyzed reductive three-component annulation reaction, Product Details of C10H18O, the main research area is chromenoquinolinone preparation diastereoselective; cyclohexanedione quinolinium bromide selective reductive annulation iridium catalyzed; chromenopyranoquinolinone preparation diastereoselective; hydroxycoumarin quinolinium bromide selective reductive annulation iridium catalyzed.

Here, through an initial pretreatment of N-heteroarenes with alkyl bromide, a syn-selective construction of functional fused heterocycles, chromenoquinolinones I [R1 = H, 7-Br, 10-NO2, etc.; R2 = CH2CH=CH2, Ph, 4-MeC6H4, etc.; R3 = H, Me; R4 = Me, Ph, 2-furyl] and chromenopyranoquinolinones II [R5 = H, 10-Me, 7-Br, etc.; R6 = H, 3-MeO, 2-Br, etc.] via iridium catalyzed reductive annulation of N-heteroarenium salts with formaldehyde and cyclic 1,3-diketones or 4-hydroxycoumarins, proceeding with broad substrate scope, good functional group compatibility, readily available feedstocks, and high step and atom efficiency was described.

Chemical Communications (Cambridge, United Kingdom) published new progress about Benzopyrans Role: RCT (Reactant), RACT (Reactant or Reagent). 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, Product Details of C10H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Kaur, Nirmaljeet published the artcileSynthesis and Application of (S)-Nicotine-Based Chiral Ionic Liquids in Enantiomeric Recognition by Using Fluorescence Spectroscopy, Related Products of alcohols-buliding-blocks, the main research area is nicotine enantiomeric recognition fluorescence spectroscopy synthesis.

The present report discusses the synthesis, characterization and application of novel chiral ionic liquids (CILs) derived from an enantiopure alkaloid (S)-nicotine. The synthesis of the CILs was initiated by the preparation of (-)-bornyl chloroacetate from (-)-borneol and monochloroacetic acid and then used for the quaternization of (S)-nicotine. The derivatives of the parent CIL were obtained via anion-metathesis reactions with sodium salts of dicyanamide and dioctyl sulfosuccinate. The synthesis of the resp. compounds was confirmed through NMR (1H,13C) spectroscopy, mass spectrometry, and FTIR. The thermal stability and optical activity of the CILs were analyzed through TGA, DTG and polarimetry. All the CILs obtained were liquid at room temperature and exhibited thermal stability up to 150 °C. The potential of chiral ionic liquids as enantiomeric recognizing agents for six amino acids (phenylalanine, proline, valine, alanine, leucine, histidine) was determined through fluorescence spectroscopy. CILs performed well against enantiomers of all amino-acid with maximum selectivity 1.22 (phenylalanine) and fluorescence enhancement 24.90 : 23.79 (ID/Io : IL/Io) for enantiomers of leucine.

ChemistrySelect published new progress about Alkaloids Role: SPN (Synthetic Preparation), PREP (Preparation). 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, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Wang, Shengdong published the artcileSilver-Catalyzed Hydrogenation of Ketones under Mild Conditions, Computed Properties of 124-76-5, the main research area is silver catalyst hydrogenation ketone aliphatic aromatic; alc preparation.

The silver-catalyzed hydrogenation of ketones using H2 as hydrogen source is reported. Silver nanoparticles are generated from simple silver (I) salts and operate at 25 °C under 20 bar of hydrogen pressure. Various aliphatic and aromatic ketones, including natural products were reduced into the corresponding alcs. in high yields. This silver catalyst allows for the selective hydrogenation of ketones in the presence of other functional groups.

Advanced Synthesis & Catalysis published new progress about Aryl aldehydes Role: RCT (Reactant), RACT (Reactant or Reagent). 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, Computed Properties of 124-76-5.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Lvova, Larisa published the artcilePotentiometric E-tongue system for geosmin/isoborneol presence monitoring in drinkable water, Recommanded Product: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is geosmin isoborneol potentiometry E tongue system drinking water pollution; 2-methyl-isoborneol; geosmin; potentiometric E-tongue; taste-and-odor-causing compounds; water potability assessment.

A potentiometric E-tongue system based on low-selective polymeric membrane and chalcogenide-glass electrodes is employed to monitor the taste-and-odor-causing pollutants, geosmin (GE) and 2-methyl-isoborneol (MIB), in drinkable water. The developed approach may permit a low-cost monitoring of these compounds in concentrations near the odor threshold concentrations (OTCs) of 20 ng/L. The experiments demonstrate the success of the E-tongue in combination with partial least squares (PLS) regression technique for the GE/MIB concentration prediction, showing also the possibility to discriminate tap water samples containing these compounds at two concentration levels: the same OTC order from 20 to 100 ng/L and at higher concentrations from 0.25 to 10 mg/L by means of PLS-discriminant anal. (DA) method. Based on the results, developed multisensory system can be considered a promising easy-to-handle tool for express evaluation of GE/MIB species and to provide a timely detection of alarm situations in case of extreme pollution before the drinkable water is delivered to end users.

Sensors published new progress about Chalcogenides Role: TEM (Technical or Engineered Material Use), 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, Recommanded Product: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Barboza, Amanda A. published the artcileSynthesis of 3-Carbonyl Trisubstituted Furans via Pd-Catalyzed Aerobic Cycloisomerization Reaction: Development and Mechanistic Studies, COA of Formula: C10H18O, the main research area is pentenyl dicarbonyl ester palladium catalyst oxidative cycloisomerization green chem; furan carboxylate preparation.

Herein, synthesis of 3-carbonyl-trisubstituted furans via Pd-catalyzed oxidative cycloisomerization reactions of 2-alkenyl-1,3-dicarbonyl scaffolds, using mol. oxygen as the sole oxidant to regenerate active palladium catalytic species, featuring good functional tolerance and mild reaction conditions was reported. Deep investigation of intermediates and transition states of the reaction mechanism were conducted via exptl. and DFT studies, providing a detailed mechanistical profile. The new developed methodol. presents a greener alternative to Wacker-type cycloisomerizations and avoids the use of stoichiometric amounts of oxidants and strong acid additives.

Journal of Organic Chemistry published new progress about 1,3-Dicarbonyl compounds Role: RCT (Reactant), RACT (Reactant or Reagent). 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, COA of Formula: C10H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Yan, Xinlei published the artcileEffect of collagen casing on the quality characteristics of fermented sausage, Category: alcohols-buliding-blocks, the main research area is fermented sausage collagen casing.

Fermented sausage is popular all over the world for its rich nutrition and unique flavor. Sausage casing is one of the key factors affecting the quality of fermented sausage. However, there is little information involved in this field. In this study, collagen casings were used as a wrapping material, and natural casings (pig casings) were used as a control. The effects of the two types of casings on biogenic amine content and other quality characteristics of fermented sausage were analyzed with increasing the storage time. The results showed that with storage time increasing, the hardness and gumminess of fermented sausage in collagen casing (CC) group were higher than those in pig casing (PC) group (P<0.05), while the elasticity in CC group was lower than that in PC group (P<0.05). In the processing and storage period, there was no significant difference in the type and content of flavor substances between the two groups. More importantly, the contents of tryptamine, putrescine, cadaverine, histamine, tyramine and phenyethylamine in fermented sausage of CC group were lower than those in PC group (P<0.05). In conclusion, this study revealed that CC could improve the quality characteristics of fermented sausage and reduce the content of biogenic amines in fermented sausage, which provides a theor. basis for the choice of casings in industrial production in the future. PLoS One published new progress about Collagens Role: FFD (Food or Feed Use), 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, Category: alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Liu, Zhibin published the artcileThe dynamics of volatile compounds and their correlation with the microbial succession during the traditional solid-state fermentation of Gutian Hong Qu glutinous rice wine, Formula: C10H18O, the main research area is rice wine volatile compoundmicrobial succession solid state fermentation; Bacterial community; Fungal community; Gutian Hong Qu glutinous rice wine; High throughput sequencing; Traditional solid-state fermentation; Volatile components.

Gutian Hong Qu glutinous rice wine (GHQW) is a representative alc. beverage in China. During its traditional brewing process, multiple strains are involved. However, the roles of these microorganisms, particularly their contributions to aroma formation, are poorly understood. Therefore, in this study, the dynamics of volatile components and microbial succession during the traditional fermentation process of GHQW were monitored, by using HS-SPME-GC/MS and high throughput 16 S rRNA and ITS sequencing techniques. Following a 32-day semi-open solid-state fermentation, massive changes in volatile profile and microbial communities were observed Based on these, the potential correlations between volatile components and microorganisms during the fermentation were explored by using Pearson correlation anal. It was revealed that 3 bacterial taxa, including Lactococcus lactis, Burkholderia gladioli and Cronobacter helveticus, and 5 fungal taxa, including Wickerhamomyces anomalus, Saccharomyces cerevisiae, Aspergillus vitricola, Aspergillus penicillioides and Monascus purpureus, showed strong connections with various volatile components. Thus these bacteria and fungi might play crucial roles in volatile components biosynthesis, and thus were preliminary considered as core functional microorganisms for GHQW brewing. The detailed information on the dynamic changes of volatile components and microbial communities throughout GHQW brewing can further expand our understanding of the formation mechanisms of GHQW aroma.

Food Microbiology published new progress about 16S rRNA Role: FFD (Food or Feed Use), 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, Formula: C10H18O.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Shakun, A. S. published the artcileInfluence of solvent on the component composition and antioxidant properties of apricot cake (Prunus armeniaca L.) extracts, Related Products of alcohols-buliding-blocks, the main research area is ethanol silicone solvent antioxidant Prunus.

Antioxidants of natural origin which are based on agroprocessing waste appear as substance with high performance properties. They have complicated structure and contain a complex of biol. active compounds This is why research of the above is particularly relevant in current competitive market. When working with plant raw materials and isolation of valuable compounds, the urgent issue is the choice of the method (extraction method) and extractant, which will ensure a maximum release of chem. active compounds Known solvents such as methanol, ethanol, hexane, di-Et ether, and mixtures thereof are usually used for recovery. The purpose of this research was to study the effect of selected nonpolar solvents on the phytochem. composition and the antioxidant capacity of Prunus armeniaca L. Extracts were obtained using ethanol, silicone, propan-2-ol, and mixtures of ethanol silicone and propan-2-ol with silicone. In the obtained extracts, identification of the sequestered chem. active compounds was carried out by means of chromatog., mass spectrometry, and IR and UV spectrometry, and the extracts were evaluated on antioxidant properties. Various extracts showed varying degrees of antioxidant activity in various test systems, depending on the concentration Since various antioxidant compounds have different mechanisms of action, several methods have been used to evaluate the effectiveness of antioxidant extracts The results showed that the test solvents play an important role in the extraction of the plant material into the component composition, as well as the antioxidant ability of Prunus armeniaca L.

Journal of Chemistry published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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, Related Products of alcohols-buliding-blocks.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts

Valasek, Pavel published the artcileComparison of contents of selected esters, higher alcohols and total content of polyphenolic substances in wines of the varieties ‘Chardonnay’ and ‘Riesling’ by vintage, Recommanded Product: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol, the main research area is wine polyphenols ester alc.

The content of individual sensory active substances in wine is an important parameter of wine evaluation concerning sensory attributes of wine. This article discusses the development of aromatic substances contents in wines of ‘Chardonnay’ and ‘Riesling’ grapes in five consecutive wine vintages (2008 to 2012) from the same vineyard track and processed using the same methods. Out of biol. active substances, the total content of phenolic substances was determined in the presented samples. In the individual samples, aromatic substances were analyzed using gas chromatog. with mass spectrometry (GC/MS). The concentration of 1 pentanol was the highest (82 to 292 mg/l). Isobutanol and 1 propanol followed. In ‘Chardonnay’, out of esters, the concentration Et acetate was the highest, followed by Et ester of caprylic acid and isoamyl acetate. ‘Riesling’ had characteristics of highly concentrated Et acetate, pentyl formate and Et caprylate. The total content of polyphenolic substances was in a range of 188 to 308 mg/l in ‘Chardonnay’ and 194 to 281 mg/l in ‘Riesling’. Average values in ‘Riesling’ were higher than in ‘Chardonnay’. The article documents that wines made from the same grape variety grown at the same vineyard track during similar climatic conditions and processed using the same techniques do not possess the same aromatic characteristics. Minor changes of individual factors may cause significant changes of a wine’s sensory quality.

Mitteilungen Klosterneuburg published new progress about Alcohols Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 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, Recommanded Product: rel-(1R,2R,4R)-1,7,7-Trimethylbicyclo[2.2.1]heptan-2-ol.

Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts