Category: 140-11-4

Li, S. published the artcileExploring the regional typicality of Australian Shiraz wines using untargeted metabolomics, Recommanded Product: Benzyl acetate, the main research area is Shiraz wine regionality volatile compound untargeted metabolomics.

Shiraz is the most widely planted winegrape cultivar in Australia. Sensory studies have indicated that different grapegrowing regions in Australia produce distinct styles of Shiraz wines that differ in flavor characteristics. The current project aimed to characterize the underlying volatile composition associated with regional Shiraz wine styles. Wines were selected from six geog. distinct regions and the volatile compounds were analyzed using gas chromatog. time-of-flight mass spectrometry to provide a comprehensive and holistic overview of the wine volatilome. A suite of R language based software enabled feature extraction and importance ranking, following an untargeted metabolomics approach. A classification model based on the random forests algorithm using the 80 most important compounds correctly associated all samples to regions. A range of these compounds, including terpenoids, benzenoids, esters, furan derivatives and aliphatic alcs., has been associated with grape composition, winemaking influences and the ageing process. The results suggest that the regional compositional differences in varietal wines may be influenced by all processes in the entire wine production chain. The current study highlighted the chem. basis underlying the regional typicality of Australian Shiraz wines, and identified specific volatile compounds that may be associated with a region.

Australian Journal of Grape and Wine Research published new progress about Aliphatic alcohols Role: ANT (Analyte), ANST (Analytical Study). 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

Ma, Xiuyuan published the artcileMnO2 oxidative degradation of lignin and electrochemical recovery study, Computed Properties of 140-11-4, the main research area is lignin manganese dioxide oxidative degradation electrochem recovery.

Effective degradation of lignin and further production of small-mol. aromatic chems. are of great importance in sustainable chem. In this experiment, lignin was efficiently oxidatively degraded under mild conditions using inexpensive manganese dioxide rather than a precious metal catalyst, with a lignin degradation efficiency of 66%. A double electrolytic cell system was then used to achieve the recycling of manganese dioxide at the anode while producing hydrogen at the cathode. GC-MC anal. showed that the lignin was degraded to chems. containing small aromatic mols. such as benzoic acid and benzyl acetate. This experiment provides a new pathway for the cyclic degradation of lignin.

Polymer Degradation and Stability published new progress about Aromatic compounds Role: ANT (Analyte), ANST (Analytical Study). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Computed Properties of 140-11-4.

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

Jain, Isha published the artcileManganese-mediated acetylation of alcohols, phenols, thiols, and amines utilizing acetic anhydride, Computed Properties of 140-11-4, the main research area is acetate preparation green chem solventless; aliphatic alc acetic anhydride acetylation manganese catalyst; phenol acetic anhydride acetylation manganese catalyst; thiophenol acetic anhydride acetylation manganese catalyst; aniline acetic anhydride acetylation manganese catalyst.

Manganese(II) chloride-catalyzed acetylation of alcs., phenols, thiols and amines RXH (R = Ph, n-octyl, cyclohexyl, etc.; X = O, S, NH), morpholine with acetic anhydride is reported. This method is environment-friendly and economically viable as it involves inexpensive, relatively benign catalyst, mild reaction condition, and simple workup. Acetylation is performed under the solvent-free condition at ambient temperature and acetylated products RXAc, N-acetylmorpholine obtained in good to excellent yields. Primary, secondary heterocyclic amines, and phenols with various functional groups are smoothly acetylated in good yields. This method exhibits exquisite chemoselectivity, and the amino group is preferentially acetylated in the presence of a hydroxyl/thiol group.

Synthetic Communications published new progress about Acetates Role: SPN (Synthetic Preparation), PREP (Preparation). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Computed Properties of 140-11-4.

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

James, Reuben R. published the artcileOne-Pot Reductive Acetylation of Aldehydes using 1-Hydrosilatrane in Acetic Acid, Category: esters-buliding-blocks, the main research area is acetate one pot preparation aldehyde reductive acetylation hydrosilatrane mediator.

A one-pot, direct reductive acetylation of aldehydes was achieved under mild conditions using 1-hydrosilatrane as a safe and easily accessible catalyst. Described herein is a facile synthesis that produces acylated primary alcs. that can serve as valuable building blocks for organic synthesis. The method has good functional group tolerance and works for a range of aryl aldehydes, with the notable exception of electron-rich arenes. A library of esters was isolated by flash chromatog. in yields as high as 92%.

SynOpen published new progress about Acetates Role: SPN (Synthetic Preparation), PREP (Preparation). 140-11-4 belongs to class esters-buliding-blocks, name is Benzyl acetate, and the molecular formula is C9H10O2, Category: esters-buliding-blocks.

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

Sole, Roberto published the artcileSynthesis of 2-Alkylaryl and Furanyl Acetates by Palladium Catalysed Carbonylation of Alcohols, COA of Formula: C9H10O2, the main research area is aralkyl alc methanol carbon monoxide palladium catalyst methoxycarbonylation; alkylaryl acetate preparation.

In this paper, the reaction between benzyl alc., chosen as a model substrate, CH3OH and CO was tested in the presence of a homogeneous palladium catalyst, an activator (isopropenyl acetate (IPAc) or di-Me carbonate (DMC)) and a base (Cs2CO3). The influence of various reaction parameters such as the CO pressure, ligand and palladium precursor employed, mmol% catalyst load, temperature and time were investigated. The results demonstrate that decreasing the CO pressure from 50 bar to 5 bar at 130°C for 18 h increases yields in benzyl acetate from 36% to over 98%. Further experiments were performed in the presence of piperonyl and furfuryl alc., interesting substrates employed for the synthesis of various fine chems. Moreover, furfuryl alc. is a lignocellulosic-derived building block employed for the synthesis of functionalized furans such as 2-alkylfurfuryl acetates. Both the alcs. were successfully transformed in the corresponding acetate (yields above 96%) in rather mild reaction conditions (5-0.01 mol% catalyst, 5-2 bar CO pressure, 130°C, 4-18h), demonstrating that the alkoxycarbonylation of alcs. represents a promising sustainable alternative to more impactful industrial practices adopted to date for the synthesis of alkylaryl and furfuryl acetates.

Catalysts published new progress about Acetates Role: SPN (Synthetic Preparation), PREP (Preparation). 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

Toyao, Takashi published the artcileEsterification of Tertiary Amides by Alcohols Through C-N Bond Cleavage over CeO2, Related Products of esters-buliding-blocks, the main research area is tertiary amide aliphatic alc reusable cerium dioxide nanocatalyst esterification; ester preparation green chem.

CeO2 was found to promote ester forming alcoholysis reactions of tertiary amides. The present catalytic system was operationally simple, recyclable and it does not require additives. The esterification process displayed a wide substrate scope (>45 examples; up to 93 % isolated yield). Results of a d. functional theory (DFT) study combined with in-situ FT-IR observations indicated that the process proceeded through rate limiting addition of a CeO2 lattice oxygen to the carbonyl group of the adsorbed acetamide species with energy barrier of 17.0 kcal/mol. This value matched well with exptl. value (17.9 kcal/mol) obtained from anal. of the Arrhenius plot. Further studies by in-situ FT-IR and temperature programmed desorption using probe mols. demonstrated that both acidic and basic properties were important and consequently, CeO2 showed the best performance for the C-N bond cleavage reaction.

ChemCatChem published new progress about Aliphatic alcohols 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, Related Products of esters-buliding-blocks.

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

Kalla, Reddi Mohan Naidu published the artcileAcylation of Phenols, Alcohols, Thiols, Amines and Aldehydes Using Sulfonic Acid Functionalized Hyper-Cross-Linked Poly(2-naphthol) as a Solid Acid Catalyst, Recommanded Product: Benzyl acetate, the main research area is crosslinked sulfonated polynaphthol porous polymer catalyst preparation property; thiol amine aldehyde acylation.

The hyper-cross-linked porous poly(2-naphthol) fabricated by the Friedel-Crafts alkylation of 2-naphthol has been functionalized with sulfonic acid to obtain a solid acid catalyst. The catalyst is applied for the protection of phenol, alcs., thiols, amines and aldehydes with acetic anhydride at room temperature The catalytic protection using the new solid acid is featured by achieving high yield at neat condition, needing no aqueous work-up and/or chromatog. separation, and showing excellent recycling efficiency, suggesting the potential of this sulfonated porous polymers as a new protection protocol in a wide range of sustainable chem. reactions.

Catalysis Letters published new progress about Acetanilides Role: SPN (Synthetic Preparation), PREP (Preparation). 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

Cai, Wen-Qiang published the artcileNi-Catalyzed Enantioselective Benzylation of Secondary Phosphine Oxide, HPLC of Formula: 140-11-4, the main research area is crystal structure mol tertiary phosphine oxide stereogenic preparation; nickel catalyzed stereoselective benzylation secondary phosphine oxide.

A nickel-catalyzed benzylic substitution of secondary phosphine oxide was described, affording the dialkylated P-stereogenic tertiary phosphine oxides with high to excellent enantioselectivities. The reaction was performed under mild conditions with com. available benzyl chlorides and bench stable secondary phosphine oxides, exhibiting broad functional group tolerance. It represented a practical example for the preparation of P-stereogenic phosphine compounds

Organic Letters published new progress about Aralkyl chlorides 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, HPLC of Formula: 140-11-4.

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

Ruiz-Moyano, Santiago published the artcileSelection and application of antifungal VOCs-producing yeasts as biocontrol agents of grey mould in fruits, Recommanded Product: Benzyl acetate, the main research area is antifungal volatile compound yeast gray mold fruit; Antifungal volatile compounds; Botrytis cinerea; Cherry; Postharvest; Strawberry.

Rotting caused by gray mold (Botrytis cinerea) is a concerning disease for numerous crops both pre- and postharvest stages. Application of antagonistic yeasts is a promising strategy for controlling gray mold incidence which could mitigate undesirable consequences of using synthetic fungicides. In this work, a screening for detection of yeasts isolated from figs producers of antifungal volatile organic compounds (VOCs) were performed by confrontation in double dishes systems. Eleven out of 34 yeasts confronted reduced B. cinerea growth parameter in vitro. This reduction was correlated (p ≤ 0.050) with the production of 10 volatile compounds: two acids (acetic acid and octanoic acid), 7 esters (Et propionate, n-Pr acetate, Iso-Bu acetate, 2-methylbutyl acetate, furfuryl acetate, phenylmethyl acetate, 2-phenylethyl acetate) and one ketone (Heptan-2-one). In bases on in vitro assay, Hanseniaspora uvarum 793 was applied to in vivo assays with strawberries and cherries. The reduction of incidence of B. cinerea in strawberries at 7°C and 25°C was 54.9 and 72.1% after 6 and 3 days, resp. The reduction of incidence of B. cinerea in cherries at 7°C and 25°C was 48.9 and 45.6% after 5 and 4 days, resp. These results showed that VOCs produced by Hanseniaspora uvarum 793 are effective in the control of incidence of Botrytis cinerea in fruits, being a potential alternative to chem. fungicide.

Food Microbiology published new progress about Acyclic hydrocarbons Role: ANT (Analyte), ANST (Analytical Study). 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

Chaudhari, Moreshwar B. published the artcileSn-Catalyzed Criegee-Type Rearrangement of Peroxyoxindoles Enabled by Catalytic Dual Activation of Esters and Peroxides, Related Products of esters-buliding-blocks, the main research area is peroxy oxindole alkyl ester stannum catalyst Criegee type rearrangement; alkoxy benzoxazinone preparation green chem.

Sn-catalyzed mild protocol was reported for ring expansion of peroxyoxindoles to afford a series of substituted 2H-benzo[b][1,4]oxazin-3(4H)-one derivatives In this protocol, authors showed the in-situ conversion of tert-Bu peroxy compounds into peresters with the aid of external esters, which then underwent the ring-expansion process and the incipient carbocation was trapped with the alc. residue generated from the esters. The reaction was also demonstrated in a continuous flow process.

Journal of Organic Chemistry published new progress about Aliphatic esters 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, Related Products of esters-buliding-blocks.

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