93-92-5 Archives - Page 3 of 3 - Esters-buliding-blocks

Application of cas: 93-92-5 | Melais, Nedjma et al. published an article in 2016

1-Phenylethyl acetate(cas:93-92-5) is a carboxylic ester. SDS of cas: 93-92-5 It may be prepared by acetylation of methyl phenyl carbinol; from benzaldehyde by reacting with magnesium methyl bromide and subsequent acetylation; from 1-bromoethylbenzene and silver acetate in acetic acid.

Melais, Nedjma;Aribi-Zouioueche, Louisa;Riant, Olivier published 《The effect of the migrating group structure on enantioselectivity in lipase-catalyzed kinetic resolution of 1-phenylethanol》. The research results were published in《Comptes Rendus Chimie》 in 2016.SDS of cas: 93-92-5 The article conveys some information:

We have studied the effects of the acyl moiety on the enantioselectivity of three lipases: Candida antarctica B, Pseudomonas cepacia and Candida cylindracea, frequently used in kinetic resolutions by acylation or hydrolysis. The size of the acyl group was examined using various enol esters during the transesterification of 1-phenylethanol and the hydrolysis of the corresponding phenylethyl esters. C. antarctica-B lipase showed the highest selectivity in the transesterification of 1-phenylethanol with isopropenyl and vinyl acetate, vinyl decanoate, vinyl laurate, (E > 200). The esters 1-Ph -ethyl-acetate, decanoate and laurate are also hydrolyzed with high selectivities (E > 150) with CAL-B. The results can be correlated to the three-dimensional form of each lipase. The effect of the migrating group on the reactivity and selectivity of the lipases are discussed for both reactions. And 1-Phenylethyl acetate (cas: 93-92-5) was used in the research process.

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

Carvalho da Silva, Romezio Alves et al. published new experimental results with the assistance of cas: 93-92-5

1-Phenylethyl acetate(cas:93-92-5) is a carboxylic ester. Electric Literature of C10H12O2 It may be prepared by acetylation of methyl phenyl carbinol; from 1-bromoethylbenzene and silver acetate in acetic acid; from benzaldehyde by reacting with magnesium methyl bromide and subsequent acetylation.

Carvalho da Silva, Romezio Alves;Marques de Mesquita, Bruna;Frota de Farias, Iolanda;Garcia do Nascimento, Patricia Georgiana;Gomes de Lemos, Telma Leda;Monte, Francisco Jose Queiroz published 《Enzymatic chemical transformations of aldehydes, ketones, esters and alcohols using plant fragments as the only biocatalyst: Ximenia americana grains》 in 2018. The article was appeared in 《Molecular Catalysis》. They have made some progress in their research.Electric Literature of C10H12O2 The article mentions the following:

The present study demonstrated the ability of Ximenia american as a biocatalyst in reduction, hydrolysis and esterification reactions. The reduction reactions of aldehydes and ketones, ester hydrolysis and esterification of alcs. were carried out with interesting results. Reduction of ketones afforded yields of 6-60% with ee in the range of 35->99% and that of aldehydes in yields of 51-99%. On the other hand, ester hydrolysis afforded yields of 58-98% with ee in the range 34-87%, while esterification of alcs. in 18-99% yields. Exptl. conditions for all reactions have been defined using standard substrates as indicated in results and discussion. Some of the products are the potential building blocks for the synthesis of mols. which are of pharmaceutical and agrochem. importance. To complete the study, the researchers used 1-Phenylethyl acetate (cas: 93-92-5) .

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

Analytica Chimica Acta | Cas: 93-92-5 was involved in experiment

1-Phenylethyl acetate(cas:93-92-5) is a carboxylic ester. COA of Formula: C10H12O2 It may be prepared by acetylation of methyl phenyl carbinol; from 1-bromoethylbenzene and silver acetate in acetic acid; from benzaldehyde by reacting with magnesium methyl bromide and subsequent acetylation.

Stupak, Michal;Goodall, Ian;Tomaniova, Monika;Pulkrabova, Jana;Hajslova, Jana published 《A novel approach to assess the quality and authenticity of Scotch Whisky based on gas chromatography coupled to high resolution mass spectrometry》 in 2018. The article was appeared in 《Analytica Chimica Acta》. They have made some progress in their research.COA of Formula: C10H12O2 The article mentions the following:

Whisky is one of the most popular spirit drinks in the world. Unfortunately, this highly valued commodity is vulnerable to fraud. To detect fraudulent practices and document quality parameters, a number of laboratory tests based on various principles including chromatog. and spectroscopy have been developed. In most cases, the anal. methods are based on targeted screening strategies. Non-targeted screening (metabolomics fingerprinting) of (semi)volatile substances was used in our study. Following the pre-concentration of these compounds, either by solid phase microextraction (SPME) or by Et acetate extraction, gas chromatog. (GC) coupled to tandem mass spectrometry (Q-TOF mass analyzer) was employed. Unsupervised principal component anal. (PCA) and supervised partial least squares discriminant anal. (PLS-DA) were used for evaluation of data obtained by anal. of a unique set of 171 authentic whisky samples provided by the Scotch Whisky Research Institute. Very good separation of malt whiskies according to the type of cask in which they were matured (bourbon vs. bourbon and wine) was achieved, and significant ‘markers’ for bourbon and wine cask maturation, such as N-(3-methylbutyl) acetamide and 5-oxooxolane-2-carboxylic acid, were identified. Subsequently, the unique sample set was used to construct a statistical model for distinguishing malt and blended whiskies. In the final phase, 20 fake samples were analyzed and the data processed in the same way. Some differences could be observed in the (semi)volatile profiles of authentic and fake samples. Employing the statistical model developed by PLS-DA for this purpose, marker compounds that pos. distinguish fake samples were identified. To complete the study, the researchers used 1-Phenylethyl acetate (cas: 93-92-5) .

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

Learn more about cas: 93-92-5 | Yancao Keji 2017

1-Phenylethyl acetate(cas:93-92-5) is a carboxylic ester. Application of 93-92-5 It may be prepared by acetylation of methyl phenyl carbinol; from 1-bromoethylbenzene and silver acetate in acetic acid; from benzaldehyde by reacting with magnesium methyl bromide and subsequent acetylation.

Li, Chao;Liu, Xiuming;Qin, Yunhua;Wang, Jiajun;Zhang, Chengming;Li, Exian;Xu, Yong;Wu, Yiqin;Jiang, Ciqing published 《Quality trend analysis on cigarette cut filler based on characteristic volatile components in cut filler》. The research results were published in《Yancao Keji》 in 2017.Application of 93-92-5 The article conveys some information:

To investigate the variations in quality trend of cigarette cut fillers, HS-GC/MS was used to determine the contents of 50 volatile characteristic components in cut fillers of cigarettes of different batches and brands. By combining PCA-MD (Principal component anal.-Mahalanobis distance) statistical methods, the determined data were processed to analyze the variation trend of quality of cut filler. The results showed that the cut fillers of cigarettes of five batches of brand C could be classified into five groups. The contents of characteristic components differed greatly between the samples produced in 2015 and 2016. From July to Oct. in 2016, the contents of 50 volatile characteristic components in the cut fillers were basically consistent except that there was slight fluctuation in August, which could be attributed to the tobacco blend adjustment. For the samples produced in 2015, there were large differences in the contents of characteristic components in the cut fillers of brands C and D, indicating that PCA could be used to qual. describe the quality characteristics of the different brands. The MD of cut fillers differed greatly between brands C and D, and the MD of cut filler of brand D was 5 to 10 times as that of brand C, indicating that MD could be used to quant. characterize the quality variation of the cut filler. The research results can be applied to the quality consistency evaluation of the final cigarettes. And 1-Phenylethyl acetate (cas: 93-92-5) was used in the research process.

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

Brief introduction of C10H12O2

Synthetic Route of 93-92-5, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 93-92-5, name is 1-Phenylethyl acetate belongs to esters-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

General procedure: A mixture of ester (1 mmol) and PBNS (30 mg) in H2O(2 mL) was stirred at ambient temperature. After completion of the reaction as monitored by TLC, the insoluble catalyst was separated by filtration. Water was removed by rotary evaporation and the residue was extracted with ethyl acetate(310 mL). The organic layer was dried over anhydrous Na2SO4. After evaporation of the solvent, the products were purified by column chromatography. The product?s purity was checked by TLC, it showed single spot of the final product, and evaporation of the solvent gave the desired pure products in good yields.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 1-Phenylethyl acetate, other downstream synthetic routes, hurry up and to see.

Reference:
Article; Khazaei, Ardeshir; Saednia, Shahnaz; Roshani, Liela; Kazem-Rostami, Masoud; Zare, Abdolkarim; Letters in Organic Chemistry; vol. 11; 3; (2014); p. 159 – 167;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Extended knowledge of 93-92-5

In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 93-92-5, name is 1-Phenylethyl acetate belongs to esters-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below. Recommanded Product: 1-Phenylethyl acetate

General procedure: A 1,2-dichloroethane (5.0mL) solution of isopropenyl acetate (2a) (0.3mmol), 1-phenylethyl acetate (10a) (0.3mmol) and ReBr(CO)5 was stirred under an atmosphere of nitrogen at 80C for 5h. After the reaction was complete, H2O was added to the reaction mixture and extracted with ethyl acetate. The organic layer was dried with MgSO4. The resulting mixture was filtered, and the filtrate was concentrated. Purification of the residue by silica gel column chromatography afforded 4-phenyl-2-pentanone (3a). The product (3a) was characterized by comparing its spectral data with those of authentic sample [23].

The synthetic route of 93-92-5 has been constantly updated, and we look forward to future research findings.

Reference:
Article; Umeda, Rui; Takahashi, Yuuki; Yamamoto, Takaaki; Iseki, Hideki; Osaka, Issey; Nishiyama, Yutaka; Journal of Organometallic Chemistry; vol. 877; (2018); p. 92 – 101;,
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics