2495-35-4 Archives - Page 4 of 10 - Esters-buliding-blocks

Vrijsen, Jeroen H.’s team published research in Polymer Chemistry in 2019 | CAS: 2495-35-4

Benzyl acrylate(cas: 2495-35-4) has been used in preparation of high refractive index polyacrylates. Benzyl acrylate is used in the preparation of heptanoic acid benzyl ester. It is used to prepare polybenzylacrylate using azobisisobutyronitrile as initiator.Computed Properties of C10H10O2

In 2019,Polymer Chemistry included an article by Vrijsen, Jeroen H.; Osiro Medeiros, Camila; Gruber, Jonas; Junkers, Tanja. Computed Properties of C10H10O2. The article was titled 《Continuous flow synthesis of core cross-linked star polymers via photo-induced copper mediated polymerization》. The information in the text is summarized as follows:

A convenient method to synthesize core cross-linked star polymers via a continuous flow photopolymerization process is developed. Photo-induced copper mediated radical polymerization was employed for arm and star syntheses. The arms of the core cross-linked star polymers are composed of poly(Me acrylate) (with a Mn, arm of 2600 or 4700 g mol-1, Darm ≈ 1.12), and 1,4-butanediol diacrylate was used as the core cross-linker. Flow polymerization enables the rapid formation of star polymers (15-20 min, Mw, star flow = 170 400 g mol-1, 33 arms). Furthermore, a reactor cascade was built that combines arm and star syntheses without the isolation of the intermediate product between both reactor stages. In this way, the star polymer is formed (Mw, star = 156 500 g mol-1, 34 arms) in a one-pot fashion, yet under scalable conditions. Surface functionalized star polymers were obtained with similar mol. weights via alc.-functional initiators. Finally, a flow reactor setup is demonstrated that allows direct access to miktoarm star polymers. In there, two different arms are synthesized from photopolymerization in parallel and then simultaneously fed into a third reactor. The resulting miktoarm core cross-linked star polymers are composed of poly(Me acrylate) and poly(benzyl acrylate) arms (Mw, star = 189 300 g mol-1, 33 arms). The reactor cascade enables rapid star polymer formation in a continuous process (within 40 min, when reactor conditions are stable) without intermediate purification, improved illumination and facile upscaling. In the experiment, the researchers used many compounds, for example, Benzyl acrylate(cas: 2495-35-4Computed Properties of C10H10O2)

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

Jiao, Meng-Jie’s team published research in Organic Chemistry Frontiers in 2019 | CAS: 2495-35-4

In 2019,Organic Chemistry Frontiers included an article by Jiao, Meng-Jie; Liu, Dan; Hu, Xiu-Qin; Xu, Peng-Fei. Category: esters-buliding-blocks. The article was titled 《Photocatalytic decarboxylative [2+2+1] annulation of 1,6-enynes with N-hydroxyphthalimide esters for the synthesis of indene-containing polycyclic compounds》. The information in the text is summarized as follows:

An efficient photoredox-mediated [2+ 2+1] cascade annulation of 1,6-enynes with N-hydroxyphthalimide esters was reported for the synthesis of a series of indene-containing polycyclic frameworks such as I [R1 = t-Bu, Ph, 2-thienyl, etc.; R2 = H, 5-Me, 5-Cl, 5-F, 6-Cl; R3 = CN, CO2Me, CO2Bn; R4 = R5 = Me; R4R5 = (CH2)4, (CH2)2O(CH2)2, (CH2)2C(O)(CH2)2, etc.] through a sequence of radical addition, 5-exo-dig cyclization, 1,n-H shift and 5-endo-trig cyclization. This protocol exhibited excellent functional group tolerance for establishing spiro and non-spiro polycyclic architectures under mild conditions. Moreover, this transformation could also be achieved smoothly via a simple phosphine/iodide-based photoredox system.Benzyl acrylate(cas: 2495-35-4Category: esters-buliding-blocks) was used in this study.

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

Schischko, Alexandra’s team published research in Nature Communications in 2019 | CAS: 2495-35-4

Benzyl acrylate(cas: 2495-35-4) is a reagent that can be used in the preparation of 2-(Phosphonomethyl)pentanedioic Acid, a selective glutamate carboxypeptidase 2 (GCP-II) inhibitor. It can also be used in the preparation of high refractive index polyacrylates.Computed Properties of C10H10O2

The author of 《Late-stage peptide C-H alkylation for bioorthogonal C-H activation featuring solid phase peptide synthesis》 were Schischko, Alexandra; Kaplaneris, Nikolaos; Rogge, Torben; Sirvinskaite, Giedre; Son, Jongwoo; Ackermann, Lutz. And the article was published in Nature Communications in 2019. Computed Properties of C10H10O2 The author mentioned the following in the article:

Methods for the late-stage diversification of structurally complex peptides hold enormous potential for advances in drug discovery, agrochem. and pharmaceutical industries. While C-H arylations emerged for peptide modifications, they are largely limited to highly reactive, expensive and/or toxic reagents, such as silver(I) salts, in superstoichiometric quantities. In sharp contrast, we herein establish the ruthenium(II)-catalyzed C-H alkylation on structurally complex peptides. The additive-free ruthenium(II)carboxylate C-H activation manifold is characterized by ample substrate scope, racemization-free conditions and the chemo-selective tolerance of otherwise reactive functional groups, such as electrophilic ketone, bromo, ester, amide and nitro substituents. Mechanistic studies by experiment and computation feature an acid-enabled C-H ruthenation, along with a notable protodemetalation step. The transformative peptide C-H activation regime sets the stage for peptide ligation in solution and proves viable in a bioorthogonal fashion for C-H alkylations on user-friendly supports by means of solid phase peptide syntheses. In addition to this study using Benzyl acrylate, there are many other studies that have used Benzyl acrylate(cas: 2495-35-4Computed Properties of C10H10O2) was used in this study.

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

Zheng, Chao’s team published research in Advanced Synthesis & Catalysis in 2019 | CAS: 2495-35-4

In 2019,Advanced Synthesis & Catalysis included an article by Zheng, Chao; Wang, Guang-Zu; Shang, Rui. Formula: C10H10O2. The article was titled 《Catalyst-free decarboxylation and decarboxylative Giese additions of alkyl carboxylates through photoactivation of electron donor-acceptor complex》. The information in the text is summarized as follows:

A catalyst-free method to perform decarboxylative conjugated addition and hydrodecarboxylation of aliphatic N-(acyloxy) phthalimides e.g., I (redox active esters, RAEs) through photoactivation of electron-donor-acceptor (EDA) complex with Hantzsch ester (HE) in N,N-dimethylacetamide (DMA) solution was reported. The reactions present a green method to decarboxylatively construct carbon-carbon bond and to perform hydrodecarboxylation with broad substrate scope and functional group tolerance under mild blue light irradiation condition without recourse of popularly used photo-redox catalysts. The experimental part of the paper was very detailed, including the reaction process of Benzyl acrylate(cas: 2495-35-4Formula: C10H10O2)

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

Kredel, Julia’s team published research in Polymers (Basel, Switzerland) in 2019 | CAS: 2495-35-4

The author of 《Compression-responsive photonic crystals based on fluorine-containing polymers》 were Kredel, Julia; Gallei, Markus. And the article was published in Polymers (Basel, Switzerland) in 2019. Application In Synthesis of Benzyl acrylate The author mentioned the following in the article:

Fluoropolymers represent a unique class of functional polymers due to their various interesting and important properties such as thermal stability, resistance toward chems., repellent behaviors, and their low refractive indexes in comparison to other polymeric materials. Based on the latter optical property, fluoropolymers are particularly of interest for the preparation of photonic crystals for optical sensing application. Within the present study, photonic crystals were prepared based on core-interlayer-shell particles focusing on fluoropolymers. For particle assembly, the melt-shear organization technique was applied. The high order and refractive index contrast of the individual components of the colloidal crystal structure lead to remarkable reflection colors according to Bragg’s law of diffraction. Due to the special architecture of the particles, consisting of a soft core, a comparably hard interlayer, and again a soft shell, the resulting opal films were capable of changing their shape and domain sizes upon applied pressure, which was accompanied with a (reversible) change of the observed reflection colors as well. By the incorporation of adjustable amounts of UV crosslinking agents into the opal film and subsequent treatment with different UV irradiation times, stable and pressure-sensitive opal films were obtained. It is shown that the present strategy led to (i) pressure-sensitive opal films featuring reversibly switchable reflection colors and (ii) that opal films can be prepared, for which the written pattern-resulting from the compressed particles-could be fixed upon subsequent irradiation with UV light. The herein described novel fluoropolymer-containing photonic crystals, with their pressure-tunable reflection color, are promising candidates in the field of sensing devices and as potential candidates for anti-counterfeiting materials. The experimental part of the paper was very detailed, including the reaction process of Benzyl acrylate(cas: 2495-35-4Application In Synthesis of Benzyl acrylate)

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

Yuan, Yu-Chao’s team published research in Catalysis Science & Technology in 2019 | CAS: 2495-35-4

In 2019,Catalysis Science & Technology included an article by Yuan, Yu-Chao; Bruneau, Christian; Roisnel, Thierry; Gramage-Doria, Rafael. Product Details of 2495-35-4. The article was titled 《Site-selective Ru-catalyzed C-H bond alkenylation with biologically relevant isoindolinones: a case of catalyst performance controlled by subtle stereo-electronic effects of the weak directing group》. The information in the text is summarized as follows:

Alkenylated isoindolinones I [R = CO2Me, Ph, 4-FC6H4, etc.; R1 = H; R2 = H, Me, Cl, MeO, CN, CO2Et; R3 = R4 = H, Me, MeO; R1R2 = OCH2O] were prepared via site-selective Ru-catalyzed C-H bond alkenylation of isoindolinones with alkenes. Notably, besides the presence of two aromatic C-H sites available for functionalization, selective mono-alkenylation in the ortho-position with respect to the nitrogen atom were achieved with a readily available ruthenium catalyst. The scalability, versatility and high functional group tolerance of the catalysis enabled the late-stage functionalization of biol. relevant indoprofen and further derivatizations. Preliminary mechanistic studies indicated, the ease of the C-H bond activation step, the key role of the carbonyl group as a weak directing group throughout the catalytic cycle and the unexpected subtle differences associated between cyclic amides and imides as weak directing groups in ruthenium-catalyzed C-H bond alkenylation reactions. The isolation and role of an unprecedented off-cycle ruthenium complex was discussed as well. In the experiment, the researchers used Benzyl acrylate(cas: 2495-35-4Product Details of 2495-35-4)

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

Kilic, Sevgi’s team published research in Journal of Supercritical Fluids in 2019 | CAS: 2495-35-4

The author of 《Fluoroacrylate-aromatic acrylate copolymers for viscosity enhancement of carbon dioxide》 were Kilic, Sevgi; Enick, Robert M.; Beckman, Eric J.. And the article was published in Journal of Supercritical Fluids in 2019. Reference of Benzyl acrylate The author mentioned the following in the article:

The effect of the structure of aromatic acrylate-fluoroacrylate copolymers on CO2 viscosity at elevated pressures was investigated. These copolymers were all found to be miscible with CO2 at pressures between 10-15 MPa (295 K) and induce an increase in the viscosity to some degree. It appears that stacking of aromatic rings is the key factor in viscosity enhancement. The results showed that viscosity of the solution increases with the increasing content of the aromatic acrylate unit in the copolymer, but a point is reached beyond which addnl. comonomer causes the relative viscosity to drop, suggesting that the aromatic rings associate through intramol. rather than intermol. interactions beyond the optimum value. The most effective CO2 thickener identified in this study was the 29% Ph acrylate-71% fluoroacrylate copolymer. However, the presence of a spacer (Me or ethyl) between the backbone and the aromatic group substantially diminished the viscosity enhancement. In the experimental materials used by the author, we found Benzyl acrylate(cas: 2495-35-4Reference of Benzyl acrylate)

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

Zhang, Miao-Miao’s team published research in Organic Chemistry Frontiers in 2020 | CAS: 2495-35-4

《Metal-free iminyl radical-mediated C-C single bond cleavage/functionalization of redox-active oxime esters》 was published in Organic Chemistry Frontiers in 2020. These research results belong to Zhang, Miao-Miao; Li, Shi-Hong; Tu, Jia-Lin; Min, Qing-Qiang; Liu, Feng. Application In Synthesis of Benzyl acrylate The article mentions the following:

A visible-light-driven iminyl radical-mediated C-C bond cleavage and functionalization of cycloketone oxime esters have been accomplished to give distal cyano pyridines such as I [R1 = H, Me, Bn, etc.; R2 = H, Me, Ph, etc.; R3 = H, 4-Me, 5-Me; R4 = H, Ph, 4-ClC6H4; R5 = H, 4-MeC6H4; n = 1, 2, 3, etc.; X = O, CH(Ph), CH(OBn), etc.] and distal cyano alkenes such as II [R6 = COOEt, Ph, 2-naphthyl, etc.; R7 = H, Me, Bn, etc.; R8 = H, Me, Ph, etc.]. This protocol is simple and does not require expensive and toxic photoredox and/or transition-metal catalysis, providing a novel catalyst-free strategy for alkylation, allylation, vinylation and alkynylation through addition of C(sp3)-centered radicals to various unsaturated acceptors. The com. available and photoactive Hantzsch ester effectively serves as an electron donor, as well as a hydrogen atom source. In the experiment, the researchers used Benzyl acrylate(cas: 2495-35-4Application In Synthesis of Benzyl acrylate)

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

Yamada, Takahiro’s team published research in Journal of Organic Chemistry in 2020 | CAS: 2495-35-4

《Thioether Ligand-Enabled Cationic Palladium(II)-Catalyzed Electrophilic C-H Arylation of α,β-Unsaturated Oxime Ethers》 was written by Yamada, Takahiro; Hashimoto, Yoshimitsu; Tanaka, Kosaku III; Morita, Nobuyoshi; Tamura, Osamu. Recommanded Product: 2495-35-4 And the article was included in Journal of Organic Chemistry in 2020. The article conveys some information:

The use of the cationic palladium(II) catalyst realized electrophilic C-H arylation of α,β-unsaturated O-SEM oximes with arylboronic acids. This Pd-catalyzed electrophilic C-H arylation is facilitated by employing alkyl aryl thioether ligands, and optimization of the ligand structure greatly improves the yield. The resulting α,β-unsaturated oximes would provide access to multisubstituted heterocyclic compounds The experimental part of the paper was very detailed, including the reaction process of Benzyl acrylate(cas: 2495-35-4Recommanded Product: 2495-35-4)

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

Li, Xiaohua’s team published research in Macromolecular Chemistry and Physics in 2021 | CAS: 2495-35-4

Li, Xiaohua; Xue, Yang; Ma, Xinyu; Guo, Ruiwei published their research in Macromolecular Chemistry and Physics in 2021. The article was titled 《Direct Determination of Interchain Transfer Constants of Benzyl Acrylate to Poly(Ethyl Acrylate) by RAFT Polymerization and Polymer Chromatography》.Application In Synthesis of Benzyl acrylate The article contains the following contents:

Interchain transfer is an important side reaction in radical polymerization of acrylates and has significant effects on both reaction kinetics and the resulting polymer microstructures. In this study, an effective method for direct determination of the interchain transfer constant (Ctr) is established via the combination of RAFT polymerization of a monomer in the presence of another prepared polymer and subsequent separation using polymer chromatog. The Ctr of benzyl acrylate (BzA) to poly(Et acrylate) (PEA) is determined with benzyl N-carbazole dithiocarbamate (BCBD) as the RAFT agent and the effects of polymerization recipe, such as BzA/BCBD mole ratios, BzA/PEA mass ratios, and solvent amounts on Ctr determination investigated. The results indicate that interchain transfer reactions show clear short chain radical effects in early stage of RAFT polymerization and the exptl. recipes have little influence on the determination The Ctr values are in the range of 1-2 x 10-4 at 90-120°C and the activation energy of Ctr at 47.8 kJ mol-1. In the experimental materials used by the author, we found Benzyl acrylate(cas: 2495-35-4Application In Synthesis of Benzyl acrylate)

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