Category: 140-11-4

Joung, Seewon published the artcileNi-catalyzed 1,2-benzylboration of 1,2-disubstituted unactivated alkenes, Quality Control of 140-11-4, the main research area is nickel catalyzed benzylboration disubstituted unactivated alkene.

Nickel-catalyzed 1,2-carboboration of alkenes is emerging as a useful method for chem. synthesis. Prior studies have been limited to only the incorporation of aryl groups. In this manuscript, a method for the 1,2-benzylboration of unactivated alkenes is presented. The reaction combines readily available alkenes, diboron reagents and benzylchlorides to generate synthetically versatile products with control of stereochem. The utility of the products as well as the mechanistic details of the process are also presented.

Chemical Science published new progress about Borylation (benzylboration). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Quality Control of 140-11-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Xu, Longjie published the artcilePreparation of scented teas by sustained-release of aroma from essential oils-casein nanocomposites, HPLC of Formula: 140-11-4, the main research area is green tea aroma essential oil casein nanocomposite.

The traditional scenting process is complicated and limited by the short flower season. In this study, formulated jasmine essential oil-casein nanoparticles (JEO-CS-NPs) were prepared for scenting green tea, in this case, Huangshan Maofeng. The freeze-dried JEO-CS-NPs (FD-JEO-CS-NPs) with a JEO/CS ratio of 0.25 encapsulated more than 70% of the JEO, and the JEO could be sustainably released for 60 days. After being scented by placing FD-JEO-CS-NPs in the tea package for 50-60 days at room temperature, the tea leaves effectively adsorbed and retained the aromatic compounds and presented a favorable smell of jasmine fragrance with good aroma maintenance. This could be ascribed to the sustained-release of aromatic compounds from the FD-JEO-CS-NPs. The new technol. also avoided destroying the color of the soaked tea liquid and infused leaf since the scenting process is performed in the tea package using the antioxidative jasmine essential oil. The research showed that the new scenting technol. can be extensively applied for the production of tea leaves scented with various flower fragrances.

LWT–Food Science and Technology published new progress about Essential oils Role: BSU (Biological Study, Unclassified), FFD (Food or Feed Use), NAN (Nanomaterial), BIOL (Biological Study), USES (Uses). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, HPLC of Formula: 140-11-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Schweitzer-Chaput, Bertrand published the artcilePhotochemical generation of radicals from alkyl electrophiles using a nucleophilic organic catalyst, COA of Formula: C9H10O2, the main research area is photochem generation carbon radical alkyl electrophile nucleophilic thiocarbamate organocatalyst.

Chemists extensively use free radical reactivity for applications in organic synthesis, materials science, and life science. Traditionally, generating radicals requires strategies that exploit the bond dissociation energy or the redox properties of the precursors. Here, we disclose a photochem. catalytic approach that harnesses different phys. properties of the substrate to form carbon radicals. We use a nucleophilic dithiocarbamate anion catalyst, adorned with a well-tailored chromophoric unit, to activate alkyl electrophiles via an SN2 pathway. The resulting photon-absorbing intermediate affords radicals upon homolytic cleavage induced by visible light. This catalytic SN2-based strategy, which exploits a fundamental mechanistic process of ionic chem., grants access to open-shell intermediates from a variety of substrates that would be incompatible with or inert to classical radical-generating strategies. We also describe how the method’s mild reaction conditions and high functional group tolerance could be advantageous for developing C-C bond-forming reactions, for streamlining the preparation of a marketed drug, for the late-stage elaboration of biorelevant compounds and for enantioselective radical catalysis.

Nature Chemistry published new progress about Alkenes, electron-deficient Role: RCT (Reactant), RACT (Reactant or Reagent). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, COA of Formula: C9H10O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Issa, Marwa Y. published the artcileVolatiles distribution in jasmine flowers taxa grown in Egypt and its commercial products as analyzed via solid-phase microextraction (SPME) coupled to chemometrics, Quality Control of 140-11-4, the main research area is Jasminum solid phase microextraction chemometric.

Jasmine is one of the most valuable com. oil bearing plants from family Oleaceae used for the production of jasmine scent mostly in the form of concrete and absolute Being an export commodity, development of reliable anal. methods for its jasmine species and derived products authentication and or adulterants detection should now follow. A comparative volatiles profiling of Jasminum grandiflorum L., J. multiflorum (Burm. f.) Andrews and J. sambac (L.) Aiton flowers in addition to J. grandiflorum products viz., concrete and absolute at different time periods was performed using solid phase microextraction (SPME) coupled to GC/MS. A total of 77 volatiles were identified belonging to esters, alcs., sesquiterpenes, ketones, aldehydes, phenols, hydrocarbons and nitrogenous compounds The phenylpropanoid/benzenoid and terpenoid classes were the major volatile classes in jasmine. Benzyl acetate was the chief scent volatile whereas major terpenoids included linalool, nerolidol, α-farnesene and cis-jasmone. Results revealed aroma variation among different flowers and products obtained from J. grandiflorum at different months. This study provides the first comprehensive and comparative aroma profile for Egyptian Jasminum species along with its products that could be used for its future quality control in industry.

Industrial Crops and Products published new progress about Aldehydes Role: ANT (Analyte), COS (Cosmetic Use), PUR (Purification or Recovery), ANST (Analytical Study), BIOL (Biological Study), USES (Uses), PREP (Preparation). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Quality Control of 140-11-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

De Lucia, Nicholas A. published the artcileSilica Supported Molecular Palladium Catalyst for Selective Hydrodeoxygenation of Aromatic Compounds under Mild Conditions, SDS of cas: 140-11-4, the main research area is silica supported mol palladium catalyst arene selective hydrodeoxygenation.

The mol. complex chloro(2,2′:6′,2”-terpyridine-4′-carboxylic acid)palladium(II) chloride was synthesized and was attached to the surface of amorphous silicon dioxide to generate a mol./heterogeneous catalyst motif. This catalytic system exhibited excellent selectivity (>99%) for hydrodeoxygenation of oxygenated aromatics under mild reaction conditions. A kinetic anal. showed that this mol./heterogeneous catalyst was an order of magnitude more active than analogous homogeneous catalysts. Characterization techniques such as XRD and solid-state NMR, in conjunction with ICP-MS, indicate that the mol. catalyst is present on the surface of SiO2 and the formation of unwanted metallic Pd nanoparticles can be avoided. Computational modeling shows the catalysts can adhere to the oxide surface through a hydrogen bonding interaction, via a Coulombic attraction between the charged mol. and the oxide surface, or through covalent bonding. Postreaction anal. of the surface-modified oxide catalysts confirmed prolonged mol. integrity of the catalyst and sustained binding of the catalyst to the oxide surface when nonpolar solvents were employed for reactions. These surface-attached mol. catalysts thus were recycled through multiple catalytic reactions.

ACS Catalysis published new progress about Binding energy. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, SDS of cas: 140-11-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Yu, Zhihui published the artcileComparative analysis of lipid profiles and flavor composition of marinated eggs from different species, Synthetic Route of 140-11-4, the main research area is chicken quail pigeon marinated egg flavor lipid.

This study compared lipid profiles and volatile composition in marinated eggs from different species (chicken, quail, and pigeon) using LC-ESI-MS/MS, and GC-MS, resp. The three marinated eggs showed significant differences in phosphatidylcholine, phosphatidylethanolamine (PE), and neutral lipid profiles of the three marinated eggs. Pigeon-eggs contained the highest content of PE but the lowest content of triglycerides. Seventy-six potential lipid metabolites such as Cer(d18:1/21:0), DG(15:0/18:2), and PE-O(16:1/18:2) were selected for the discrimination of all three groups. Pigeon-eggs contained the highest contents of C18:2 and C22:6, as well as n-3 and n-6 PUFA than quail-eggs and chicken-eggs. Major compounds including 2-Nonanone, 1-Octen-3-ol, and cyclic octaat. sulfur have greatly contributed to the distinction of eggs from different species. The highest levels of aldehydes, acids, and ketones were found in chicken-eggs. This study reported that lipidomic and volatile composition anal. are promising approaches for discriminating of marinated eggs from different species. Novelty impact statement : This is the first study that aiming at comparing the lipid profiles and volatile composition in marinated eggs from different species (chicken, quail, and pigeon) using LC-ESI-MS/MS and GC-MS. Pigeon-eggs contained the highest contents of glycerol phospholipid, n-3, and n-6 PUFA. The predominating volatile compositions of marinated eggs were alcs. aldehydes acids and ketones. Therefore, this study provides a better understanding of the quality of marinated eggs, and help customers to better choose higher nutritional values of marinated eggs.

Journal of Food Processing and Preservation published new progress about Alcohols Role: ANT (Analyte), BSU (Biological Study, Unclassified), FFD (Food or Feed Use), ANST (Analytical Study), BIOL (Biological Study), USES (Uses). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Synthetic Route of 140-11-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Parrot, Isabelle published the artcileVolatile Compounds from Flowers of Elaeagnus x submacrophylla Servett.: Extraction, Identification of Flavonoids, and Antioxidant Capacity, Recommanded Product: Benzyl acetate, the main research area is Elaeagnus submacrophylla flavonoid volatile compound extraction antioxidant capacity; Elaeagnus submacrophylla; antioxidants; flavonoids; phenolic content; volatile compounds.

Beneficial to the ecosystem and with significant potential in permaculture, Elaeagnus x submacrophylla Servett. was studied here mainly for the identification of its floral odorants. After olfactory evaluation and determination of the volatile profile of freshly picked flowers by headspace/solid phase microextraction coupled with gas chromatog./mass spectrometry, an ethanolic extract was prepared and investigated for its antioxidant capacity. Unusual mols. were identified in the floral headspace, such as isochavicol or chrysanthemum acetate. The evaluation of the in vitro free radical scavenging capacity (from 0.4 to 1.3 mmol TE/g) and total phenolic content (65.1 mg GAE/g) of the extract pointed out a promising antioxidant activity, potentially related to the identification of several flavonoid glycosides. These results have to be considered in the context of the ever-increasing need to produce innovative natural extracts with notably interesting claims for the cosmetic field.

ChemPlusChem published new progress about Aldehydes Role: ANT (Analyte), FFD (Food or Feed Use), PAC (Pharmacological Activity), ANST (Analytical Study), BIOL (Biological Study), USES (Uses). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Recommanded Product: Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Alhaddad, Maha published the artcileAlkyl substituted 4-N-oxazadisilinane cations: A new family of Si protic ionic liquids and its application on esterification reactions, Application of Benzyl acetate, the main research area is oxazadisilinane preparation Bronsted acid ammonium salt ionic liquid; Bronsted acid oxazadisilinane ammonium salt esterification catalysts.

A series of oxazadisilinane compounds O(SiMe2CH2)NR (R = Bu, C6H13, C8H17, tBu, cyclopentyl, cyclohexyl) were prepared and used as Bronsted bases to form a series of 21 siloxane protic ionic liquids, salts [O(SiMe2CH2)N+HR]X (Si-PILs; X = Cl-, MeSO3-, BF4-, HSO3-) with four different acids. This new family of Si-PILs were well characterized and examined to catalyze esterification reactions.

Tetrahedron Letters published new progress about Crystal structure. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Application of Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Gorni, Giacomo published the artcileFabrication of dye-sensitized solar modules based on a prototyping pilot line and their integration into energy storage microsystems, Recommanded Product: Benzyl acetate, the main research area is titania glass frit energy storage microsystem fabrication.

We successfully developed a prototyping pilot line for dye-sensitized solar modules up to 23 × 23 cm2. Dedicated ceramic materials were studied for large area application: we formulated a lead-free glass frit sealant with low softening point based on the ternary system Bi2O3-B2O3-ZnO and a TiO2 anatase screen-printable paste for semi-transparent photoanodes. Alongside traditional screen-printing, specific machines among which a thermal press, a dye injection equipment and an automatic electrolyte filler were designed and realized. A silver-free layout was adopted and the solar modules reached an efficiency close to 2%. Photovoltaic glass panels composed by interconnected DSSC modules were interfaced with custom integrated circuits to realize energy storage microsystems for two self-powered prototypes: a USB solar table for recharging of portable devices and a novel LED glass parapet for active night lighting are here presented.

Journal of the European Ceramic Society published new progress about Electric current-potential relationship. 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Recommanded Product: Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Lam, Ying-Pong published the artcileAmide/Iminium Zwitterionic Catalysts for (Trans)esterification: Application in Biodiesel Synthesis, Name: Benzyl acetate, the main research area is amide iminium zwitterionic catalyst transesterification dehydrative esterification biodiesel synthesis.

A class of zwitterionic organocatalysts based on an amide anion/iminium cation charge pair has been developed. The zwitterions are easily prepared by reacting aziridines with aminopyridines. They are catalytically applicable to transesterifications and dehydrative esterifications. Mechanistic studies reveal that the amide anion and iminium cation work synergistically in activating the reaction partners, with the iminium cationic moiety interacting with the carbonyl substrates through nonclassical hydrogen bonding. The reaction can be applied to large-scale synthesis of biodiesel under mild conditions.

ACS Catalysis published new progress about Aminopyridines Role: IMF (Industrial Manufacture), PEP (Physical, Engineering or Chemical Process), RCT (Reactant), PREP (Preparation), PROC (Process), RACT (Reactant or Reagent). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Name: Benzyl acetate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics