623-47-2 Archives - Page 6 of 12 - Esters-buliding-blocks

Tang, Zhishun’s team published research in Organic & Biomolecular Chemistry in 2022 | CAS: 623-47-2

Ethyl propiolate(cas: 623-47-2) is a clear colorless to pale yellow liquid that is soluble in ethanol, ether and chloroform. It an important organic chemical raw material and pharmaceutical intermediate. Ethyl propargylate is obtained by oxidation of propargyl alcohol to propargylic acid followed by esterification.Recommanded Product: 623-47-2

In 2022,Tang, Zhishun; Chen, Linghong; Yin, Pengxuan; Yang, Lu; Shi, Zhichuan; Zhao, Zhigang; Ye, Ling; Li, Xuefeng published an article in Organic & Biomolecular Chemistry. The title of the article was 《Diastereoselective construction of tetracyclic chromanes via a triply annulative strategy》.Recommanded Product: 623-47-2 The author mentioned the following in the article:

A triple Michael/aldol cascade reaction was established to construct tetracyclic chromanes in a diastereoselective fashion (≥5 : 1 dr). The polycyclic products were generated in 50-78% isolated yields under mild and metal-free conditions. Five reactive sites of enolate-tethered divinyl ketones were sequentially utilized to form four C-C bonds in a one-pot operation, leading to a construction of three new rings. Up to six consecutive stereocenters, including two quaternary stereogenic centers, were created in this domino process.Ethyl propiolate(cas: 623-47-2Recommanded Product: 623-47-2) was used in this study.

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

Savari, Mehdi’s team published research in Applied Organometallic Chemistry in 2022 | CAS: 623-47-2

In 2022,Savari, Mehdi; Varasteh-Moradi, Ali; Sayyed-Alangi, S. Zahra; Hossaini, Zinatossadat; Zafarmehrabian, Ramin published an article in Applied Organometallic Chemistry. The title of the article was 《Ag/Fe3O4/TiO2@MWCNTs as a reusable organometallic nanocatalyst promoted green synthesis of new pyridobenzoazepines: Study of biological activity and reduction of organic pollutants》.Quality Control of Ethyl propiolate The author mentioned the following in the article:

In this research, Ag/Fe3O4/TiO2@MWCNTs magnetic nanocomposites synthesized using water extract of Spinacia oleracea leaves, and the high performance of synthesized catalyst was confirmed by employing it in the multicomponent reaction of isatoic anhydride, N-methylimidazole, α-haloketones, electron-deficient acetylenic compounds, ammonium acetate, and Me epoxide in water at ambient temperature for the preparation of new pyridobenzoazepine derivatives such as I [X = H, Me, NO2, etc.; R1 = Me, Et; R2 = CO2Et, 4-MeC6H4, 4-MeOC6H4, etc.] in high yields. Also, the catalytic activity of the green synthesized Ag/Fe3O4/TiO2@MWCNTs was evaluated in the reduction of organic pollutants such as 4-nitrophenol in water at mild conditions. The results indicated that the biosynthesized magnetic nanocomposites (MNCs) have very high and effective catalytic activity for organic pollutants within few seconds. The synthesized compounds have OH group in their structure and for this reason might be showed good antioxidant activity. Also, employing Gram-pos. and Gram-neg. bacteria in the disk diffusion procedure confirmed antimicrobial effect of the some pyridobenzoazepine derivatives The results showed that synthesized compounds prevented the bacterial growth. This used procedure for preparation of pyridobenzoazepine derivatives have some advantages such as low reaction time, product with high yields, and simple separation of catalyst and products. The experimental process involved the reaction of Ethyl propiolate(cas: 623-47-2Quality Control of Ethyl propiolate)

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

Jin, Xiaoping’s team published research in Organic & Biomolecular Chemistry in 2022 | CAS: 623-47-2

Jin, Xiaoping; Zhang, Li published an article in 2022. The article was titled 《Expedient access to N-alkylphthalimides via redox-neutral photocatalysed Giese-type reactions》, and you may find the article in Organic & Biomolecular Chemistry.Recommanded Product: Ethyl propiolate The information in the text is summarized as follows:

A novel protocol for the preparation of N-alkylphthalimides such as I [R = n-Bu, allyl, CH2NPh, etc.; R1 = C(O)OEt, Ph, 4-MeC6H4, etc.] was developed via photoredox-catalyzed Giese-type reaction of N-vinylphthalimides with radicals using alkyl silicates or Hantzsch esters as the radical precursors. According to the result of deuteration experiments, a mechanism involving a radical addition/SET reduction/protonation process has been proposed. The synthetic application of N-alkylphthalimide was demonstrated by deprotecting the phthalimido group using the Ing-Manske procedure. The experimental process involved the reaction of Ethyl propiolate(cas: 623-47-2Recommanded Product: Ethyl propiolate)

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

Joshi, Dirgha Raj’s team published research in Journal of Organic Chemistry in 2021 | CAS: 623-47-2

Joshi, Dirgha Raj; Kim, Ikyon published their research in Journal of Organic Chemistry in 2021. The article was titled 《Michael-Aldol Double Elimination Cascade to Make Pyridines: Use of Chromone for the Synthesis of Indolizines》.Quality Control of Ethyl propiolate The article contains the following contents:

A domino Michael-aldol double elimination route to indolizines having two different acyl groups at the C5 and C7 positions was described where chromone was employed as a two-carbon unit for the synthesis of a pyridine moiety for the first time. Various analogs were readily accessed in good yields under metal-free and eco-friendly conditions. Further manipulation of the resulting products allowed entry to novel indolizine-heterocycle adducts, which were difficult to access by other methods. The results came from multiple reactions, including the reaction of Ethyl propiolate(cas: 623-47-2Quality Control of Ethyl propiolate)

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

Venugopala, Katharigatta Narayanaswamy’s team published research in PLoS One in 2019 | CAS: 623-47-2

The author of 《Computational, crystallographic studies, cytotoxicity and anti-tubercular activity of substituted 7-methoxy-indolizine analogues》 were Venugopala, Katharigatta Narayanaswamy; Chandrashekharappa, Sandeep; Pillay, Melendhran; Abdallah, Hassan H.; Mahomoodally, Fawzi M.; Bhandary, Subhrajyoti; Chopra, Deepak; Attimarad, Mahesh; Aldhubiab, Bandar E.; Nair, Anroop B.; Sreeharsha, Nagaraja; Morsy, Mohamed A.; Pottathil, Shinu; Venugopala, Rashmi; Odhav, Bharti; Mlisana, Koleka. And the article was published in PLoS One in 2019. Reference of Ethyl propiolate The author mentioned the following in the article:

A series of synthetic 7-methoxy-indolizine derivatives I [R1 = 4-F, 4-CN, 3-OMe, 4-Br; R2 = H, Me, CO2Et] were synthesized, characterized and evaluated for in vitro whole-cell anti-tuberculosis (TB) screening against susceptible (H37Rv) and multi-drug-resistant (MDR) strains of Mycobacterium tuberculosis (MTB) using the resazurin microplate assay method and cytotoxicity was evaluated using the MTT assay. The experimental process involved the reaction of Ethyl propiolate(cas: 623-47-2Reference of Ethyl propiolate)

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

Gorman, Jeffrey’s team published research in Journal of Physical Chemistry C in 2019 | CAS: 623-47-2

The author of 《Excimer Formation in Carboxylic Acid-Functionalized Perylene Diimides Attached to Silicon Dioxide Nanoparticles》 were Gorman, Jeffrey; Pandya, Raj; Allardice, Jesse R.; Price, Michael B.; Schmidt, Timothy W.; Friend, Richard H.; Rao, Akshay; Davis, Nathaniel J. L. K.. And the article was published in Journal of Physical Chemistry C in 2019. Electric Literature of C5H6O2 The author mentioned the following in the article:

The creation of artificial light-harvesting complexes involves the ordered arrangement of chromophores in space. To guarantee efficient energy-transfer processes, organic dyes must be brought into close proximity, often leading to aggregation and the formation of excimer states. In recent years, the attachment of ligand-based chromophores to nanoparticles has also generated interest in relation to improved solar harvesting and spin-dependent electronic interactions such as singlet fission and upconversion. We explore the covalent attachment of two novel perylene-diimide (PDI) carboxylic acid ligands to silicon dioxide nanoparticles. This allows us to study electronic interactions between the ligands when attached to nanoparticles because these cannot couple to the wide band gap silicon dioxide. One of the synthesized PDI ligands has sterically hindering phenols in the bay position and undergoes minimal optical changes upon attachment, but the other forms an excimer state with a red-shifted and long-lived florescence. As such, mol. structure changes offer a method to tune weak and strong interactions between ligand layers on nanocrystal surfaces. In the experiment, the researchers used Ethyl propiolate(cas: 623-47-2Electric Literature of C5H6O2)

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

Chen, Xiao Yun’s team published research in Organic & Biomolecular Chemistry in 2021 | CAS: 623-47-2

Chen, Xiao Yun; Yuan, Shuxia; Chen, Yan; Sun, Chenyang; Tang, Yaonan; Chen, Guang; Zhu, Baocheng; Chen, Kaiwei; Zheng, Shaojun; Cheng, Xiaofang published their research in Organic & Biomolecular Chemistry in 2021. The article was titled 《Solvent-controlled two-step one-pot syntheses of α-X (X = Br or Cl) enamino ketones/esters and 3-(2,5-dioxopyrrolidin-1-yl)acrylate by using terminal carbonyl alkynes》.Computed Properties of C5H6O2 The article contains the following contents:

A new two-step one-pot aminobromination/chlorination of carbonyl alkynes has been achieved via a Michael addition of aliphatic secondary amines and subsequent β-bromination/chlorination of the obtained enamines to afford various α-X (X = Br or Cl) enamino ketones/esters in moderate to good yields. A solvent-controllable protocol has been developed to produce versatile 3-(2,5-dioxopyrrolidin-1-yl)acrylates in moderate yields by using toluene as the solvent and chain alkyl propiolates as alkynyl substrates. In the experimental materials used by the author, we found Ethyl propiolate(cas: 623-47-2Computed Properties of C5H6O2)

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

Agheli, Z.’s team published research in Russian Journal of General Chemistry in 2020 | CAS: 623-47-2

《Pyrido[1′,2′:1,5]pyrazolo[4,3-b]quinolines as New Fluorescent Heterocyclic Systems for Dye-Sensitized Solar Cells》 was published in Russian Journal of General Chemistry in 2020. These research results belong to Agheli, Z.; Pordel, M.; Davoodnia, A.; Beyramabadi, S. A.. Safety of Ethyl propiolate The article mentions the following:

Abstract: New fluorescent heterocyclic compounds pyrido[1′,2′:1,5]pyrazolo[4,3-b]quinolines have been synthesized by the reaction of 3-nitropyrazolo[1,5-a]pyridine with different arylacetonitriles in high yield. Structural assignments of the new compounds are based on their spectral data. The study of optical properties of the compounds has revealed their high fluorescence quantum yields. Electrochem. properties of the compounds have been studied by cyclic voltammetry. The IPCE spectra and the I-V curves of the florescence compounds have been obtained, and their photovoltaic performance of 5.12-6.59% has been achieved.Ethyl propiolate(cas: 623-47-2Safety of Ethyl propiolate) was used in this study.

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

Li, Fengxi’s team published research in European Journal of Organic Chemistry in 2019 | CAS: 623-47-2

The author of 《Hemoglobin-Catalyzed Synthesis of Indolizines Under Mild Conditions》 were Li, Fengxi; Tang, Xuyong; Xu, Yaning; Wang, Chunyu; Zhang, Liu; Zhang, Jiaxin; Liu, Jiaxu; Li, Zhengqiang; Wang, Lei. And the article was published in European Journal of Organic Chemistry in 2019. Computed Properties of C5H6O2 The author mentioned the following in the article:

Hb-catalyzed synthesis of indolizines via a multicomponent reaction is reported for the first time. The corresponding indolizines were obtained in moderate to high yields by using this method. This mild, efficient and practical method is distinguished using a com. inexpensive biocatalyst and readily available starting materials, wide substrate scope, and operational simplicity. Furthermore, this method expands the application of Hb in organic synthesis. In the experiment, the researchers used many compounds, for example, Ethyl propiolate(cas: 623-47-2Computed Properties of C5H6O2)

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

Wu, Chao’s team published research in ACS Sustainable Chemistry & Engineering in 2019 | CAS: 623-47-2

In 2019,ACS Sustainable Chemistry & Engineering included an article by Wu, Chao; Xiao, Hai-Jing; Wang, Shu-Wen; Tang, Man-Sheng; Tang, Zi-Long; Xia, Wen; Li, Wen-Feng; Cao, Zhong; He, Wei-Min. Formula: C5H6O2. The article was titled 《Natural Deep Eutectic Solvent-Catalyzed Selenocyanation of Activated Alkynes via an Intermolecular H-Bonding Activation Process》. The information in the text is summarized as follows:

By employing cheap and biodegradable natural deep eutectic solvent as the catalyst and reaction media, the selective selenocyanation of activated alkynes via an intermol. H-bonding activation pathway has been achieved, which allows for the efficient construction of various Z-vinyl selenolates. In the experiment, the researchers used many compounds, for example, Ethyl propiolate(cas: 623-47-2Formula: C5H6O2)

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