Category: 10287-53-3

Kong, Xianqiang published the artcileCyanation and cyanomethylation of trimethylammonium salts via electrochemical cleavage of C-N bonds, SDS of cas: 10287-53-3, the publication is Organic Chemistry Frontiers (2022), 9(5), 1288-1294, database is CAplus.

A practical and mild electrochem. protocol for cyanation and cyanomethylation of trimethylammonium salts through a pathway involving C-N bond cleavage without the need for an external stoichiometric reducing agent or a sacrificial anode was developed. The reaction employed tosyl cyanide (TsCN) or azido allyl alc. as the cyanation or cyanomethylation reagent, resp. It showed high functional group compatibility and can be applied for the cyanation of natural product derivatives Preliminary mechanistic studies indicated the involvement of a radical addition pathway.

Organic Chemistry Frontiers published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, SDS of cas: 10287-53-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zhu, Di published the artcileTerthiophene Derivative-Based Photoinitiating Systems for Free Radical and Cationic Polymerization under Blue LEDs, HPLC of Formula: 10287-53-3, the publication is Industrial & Engineering Chemistry Research (2021), 60(24), 8733-8742, database is CAplus.

Terthiophene derivatives were prepared and utilized as photoinitiators of photopolymerization reactions upon exposure to LEDs (410 and 445 nm). The photochem. mechanisms of the terthiophene-based photoinitiating systems were investigated and confirmed by steady-state photolysis, fluorescence quenching, and ESR spin-trapping techniques. The photoinitiation ability of terthiophene derivatives in combination with the iodonium salt and optionally with a tertiary amine in the free radical polymerization of multifunctional acrylates and cationic polymerization of epoxides under mild light irradiation was investigated. Exceptionally, a sodium salt form of a terthiophene derivative presented exceeding water solubility and admirable efficiency in rapid hydrogel formation from the 2-hydroxy Et acrylate and water blend. The storage stability of the effective photoinitiating systems in the formulations was also studied under moderate conditions.

Industrial & Engineering Chemistry Research published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C12H15ClO3, HPLC of Formula: 10287-53-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Zakeri, Setareh published the artcileFabrication of self-supporting structures made of washcoat materials (γ-Al₂O₃-CeO₂) by ceramic stereolithography: Towards digital manufacturing of enhanced catalytic converters, Formula: C11H15NO2, the publication is Materials & Design (2021), 110115, database is CAplus.

Despite increasing interest in the use of alternative fuel, conventional diesel or gasoline powered vehicles still dominate road transportation; removal of their emitted pollutants is a challenge to sustainable transportation. The automotive industry has employed catalytic converters (CCs) to effectively modify or eliminate toxic pollutants emitted by combustion engines. The efficiency of a CC greatly depends on its geometry and is hindered by limitations in fabrication techniques. To go beyond these limits and further enhance the performance of CCs, one can use state-of-the-art ceramic stereolithog. (CSL) technol., which enables fabrication of complex-shaped structures. In this work, a novel photocurable ceramic resin made of γ-Al₂O₃ and CeO₂ (the commonly used washcoat materials in CCs) is shaped into the honeycomb and twisted honeycomb structures using CSL. Measurements reveal that upon the addition of CeO₂ to the plain γ-Al₂O₃ resin, the penetration depth of light is significantly decreased from 408.06μm to 75.19μm. This research also focuses on the balance between having a high surface area and achieving good phys. stability in the printed structures. Accordingly, the appropriately debinded structures are sintered at two different temperatures: 900°C and 1100°C. It is found that the structure sintered at 900°C has a higher surface area, and thus, it is a better candidate for catalytic applications. Furthermore, investigation of the stabilizing effect of CeO₂ on printed γ-Al₂O₃ finds that CeO₂ is effective in stabilizing the printed γ-Al₂O₃ at1100°C but not 900°C. Targeting the realization of green and sustainable transportation, the applied CSL technique in this study enables flexible control in the design and fabrication of self-supporting structures that are expected to open promising ways for the optimization of CCs.

Materials & Design published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C13H19Br2ClN2O, Formula: C11H15NO2.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Clarke, Joshua A. published the artcileBase-Catalyzed Hydrosilylation of Nitriles to Amines and Esters to Alcohols, Synthetic Route of 10287-53-3, the publication is European Journal of Organic Chemistry (2021), 2021(31), 4434-4439, database is CAplus.

Base-catalyzed hydrosilylation of nitriles to amines and esters to silylated alcs. is reported. This protocol tolerates electron-rich and electron-neutral olefins and works in the presence of basic functional groups (e. g. tertiary amines) but fails for acidic substrates, such as phenols and NH anilines. This catalytic system does not tolerate carbonyl groups, such as aldehydes, ketones, esters and carbamides, which are reduced to corresponding alcs. and amines. With the exact amount of silane, esters can be selectively reduced in the presence of nitriles, but the selectivity drops for the pairs ester/carboxamide and carboxamide/nitrile. Through competition experiments, the following preference in functional group reactivity was determined: ester > carboxamide > nitrile.

European Journal of Organic Chemistry published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Synthetic Route of 10287-53-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Aydinoglu, Aysu published the artcileDevelopment of Biomimetic Hydroxyapatite Containing Dental Restorative Composites, Recommanded Product: Ethyl 4-dimethylaminobenzoate, the publication is Arabian Journal for Science and Engineering (2022), 47(5), 6667-6678, database is CAplus.

The aim of the study was to evaluate the incorporation effect of biomimetic hydroxyapatite (BHA) particles on the mech. properties of exptl. dental composites. Two exptl. composites were produced from the same organic matrix, Si/Zr nanocluster, and SiO2/silane as main inorganic reinforcing fillers. 7wt% BHA was added to one of the groups to evaluate its effect on mech. properties. The BHA was also modified with 3-MPTMS to improve chem. bonding. Chem. structures and phys. properties of the fillers were identified by XRD, FTIR, XPS, TGA, SEM, BET, and Zeta-Sizer. According to ISO 4049 and DIN 50,133 the mech. properties, and to ISO 10993-5:2009 the biocompatibility was investigated. Anal. of variance (ANOVA) was used for the statistical anal. of acquired data. The BHA was synthesized by the biomimetic method in simulated body media (SBF). The SEM images of BHA/Silane particles demonstrated rod-like shapes and similar dimensions with natural hydroxyapatite present in tooth enamel. The modification by using 3-MPTMS was decreased the mean particle size of the fillers due to a lower agglomeration tendency. Moreover, the addition of small mass fractions of the BHA into the dental resins can substantially meet the ISO 4049 requirements. Consequently, the BHA was not adversely decreasing the mech. properties of the dental composites. Also, the biocompatibility of the BHA-containing composites was found better than the samples without BHA-containing composites. The incorporation of the BHA can meet the mech. requirements of dental resins and composites. Addnl., it may show regenerative properties against small lesions.

Arabian Journal for Science and Engineering published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Recommanded Product: Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Runemark, August published the artcileAerobic Oxidative EDA Catalysis: Synthesis of Tetrahydroquinolines Using an Organocatalytic EDA Active Acceptor, Name: Ethyl 4-dimethylaminobenzoate, the publication is Journal of Organic Chemistry (2022), 87(2), 1457-1469, database is CAplus and MEDLINE.

A catalytic electron donor-acceptor (EDA) complex for the visible-light-driven annulation reaction between activated alkenes and N,N-substituted dialkyl anilines was reported. The key photoactive complex was formed in situ between dialkylated anilines as donors and 1,2-dibenzoylethylene as a catalytic acceptor. The catalytic acceptor was regenerated by aerobic oxidation Investigations into the mechanism were provided, revealing a rare example of a catalytic acceptor in photoactive EDA complexes that can give access to selective functionalization of aromatic amines under mild photochem. conditions.

Journal of Organic Chemistry published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Name: Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Tang, Shuqin published the artcilePrenatal Exposure to Emerging Plasticizers and Synthetic Antioxidants and Their Potency to Cross Human Placenta, Related Products of esters-buliding-blocks, the publication is Environmental Science & Technology (2022), 56(12), 8507-8517, database is CAplus and MEDLINE.

Gestational exposure to environmental chems. and subsequent permeation through the placental barrier represents potential health risks to both pregnant women and their fetuses. In the present study, we explored prenatal exposure to a suite of 46 emerging plasticizers and synthetic antioxidants (including five transformation products of 2,6-di-tert-butyl-4-hydroxytoluene, BHT) and their potency to cross human placenta based on a total of 109 maternal and cord serum pairs. Most of these chems. have rarely or never been investigated for prenatal exposure and associated health risks. Eleven of them exhibited detection frequency greater than 50% in maternal blood, including di-Bu fumarate (DBF), 2,6-di-tert-butylphenol (2,4-DtBP), 1,3-diphenylguanidine (DPG), methyl-2-(benzoyl)benzoate (MBB), tri-Et citrate (TEC), BHT, and its five metabolites, with a median concentration from 0.05 to 3.1 ng/mL. The transplacental transfer efficiency (TTE) was determined for selected chems. with valid measurements in more than 10 maternal/cord blood pairs, and the mean TTEs exhibited a large variation (i.e., 0.29-2.14) between chems. The determined TTEs for some of the target chems. were comparable to the predicted values by our previously proposed models developed from mol. descriptors, indicating that their transplacental transfer potency could be largely affected by physicochem. properties and mol. structures. However, addnl. biol. and physiol. factors may influence the potency of environmental chems. to cross human placenta. Overall, our study findings raise concern on human exposure to an increasing list of plastic additives during critical life stages (e.g., pregnancy) and potential health risks.

Environmental Science & Technology published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C5H10Cl3O3P, Related Products of esters-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Shah, Parag K. published the artcilePhotopolymerization shrinkage-stress reduction in polymer-based dental restoratives by surface modification of fillers, Computed Properties of 10287-53-3, the publication is Dental Materials (2021), 37(4), 578-587, database is CAplus and MEDLINE.

This research explores the use of polymer brushes for surface treatment of fillers used in polymer-based dental restoratives with focus on shrinkage stress reduction The influence of interfacial reactive groups on shrinkage stress is explored. Oligomers of varying lengths and with varying number of reactive groups along the length were synthesized by modifying com. oligomers. Surface of silica fillers (OX50) was treated with methylaminopropyltrimethoxysilane and this was further reacted with the synthesized oligomers to obtain a series of polymer brushes on the surface. Fillers modified with -methacryloxypropyltrimethoxysilane were used as a control. Filler surface treatment was confirmed using diffuse reflectance spectroscopy and thermogravimetric anal. Fillers were added at 30 wt% to a resin made of BisGMA/TEGDMA and polymerization kinetics, shrinkage stress, volumetric shrinkage, flexural strength and modulus, viscosity were measured. Composites with polymer brush functionalized fillers showed up to a 30% reduction in shrinkage stress as compared to the control, with no reduction in flexural strength and modulus. Shrinkage stress reduced with increasing length of the polymer brush and increased with increase in number of reactive groups along the length of the polymer brush. The interface between inorganic fillers and an organic polymer matrix has been utilized to reduce shrinkage stress in a composite with no compromise in mech. properties. This study gives insights into the stress development mechanism at the interface.

Dental Materials published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C9H6N2O2, Computed Properties of 10287-53-3.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Song, Qiuyan published the artcileMacrocyclic Photoinitiator Based on Prism[5]arene Matching LEDs Light with Low Migration, Application of Ethyl 4-dimethylaminobenzoate, the publication is Macromolecular Rapid Communications (2021), 42(17), 2100299, database is CAplus and MEDLINE.

In this work, a naphthalene-based macrocycle prism[5]arene (NP₅OCH₃) is developed as a novel kind of photoinitiator. When NP₅OCH₃ is irradiated under light, the bond between methylene and naphthalene can be quickly broken owning to the existence of ring tension. The macrocycle is cleaved to linear oligomer biradicals, which can effectively initiate the free radical photopolymerization of acrylate monomers. Compared with conventional photoinitiators, NP₅OCH₃ has strong light absorption in the wavelength range of 365-405 nm, so it can well match the environment-friendly light-emitting diodes (LEDs) light source to realize highly efficient initiation. In addition, there is no small mol. fragment generated during NP₅OCH₃ fracture, and the resulted linear oligomer biradicals can be immobilized in the polymer after initiating polymerization, so NP₅OCH₃ photoinitiators show much lower migration rate and cytotoxicity. Cleavable macrocycle prismarene may provide a new idea for the design of safe and efficient photoinitiators matching long wavelength light.

Macromolecular Rapid Communications published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C2H4ClNO, Application of Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics

Durner, Juergen published the artcileDirect and indirect eluates from bulk fill resin-based-composites, Safety of Ethyl 4-dimethylaminobenzoate, the publication is Dental Materials (2022), 38(3), 489-507, database is CAplus and MEDLINE.

To compare elutable substances directly released from bulk-fill (BF) resin-based composites (RBCs) with indirect elution from teeth restored with a BF composite. In addition to (co)monomers, the anal. focus was on other potentially toxic ingredients or impurities. Furthermore, the barrier function of the residual dentin/adhesive layer was studied.Six BF-RBC materials were studied. For each material subgroup, ten human third molar teeth with standard Class-I occlusal cavities were prepared and provided with a three-step adhesive system and the resp. composite restoration (tooth groups). Same sized control specimens of the restorative material were prepared (′direct BF-RBCâ€?groups). Each specimen was placed in an elution chamber such that the elution media (ethanol/water, 3:1) only contacted the tooth root or 3/4 height of each specimen. They were incubated at 37 °C for up to 7 d. Samples of eluate were taken after 1, 2, 4 and 7 d and were analyzed by high-temperature gas chromatog./mass spectrometry.(Co)monomers such as Bisphenol A ethoxylate dimethacrylate (bisEMA) or tetraethylene glycol dimethacrylate (TEEGDMA) were mostly found in the eluates of the ′direct BF-RBCâ€?groups in statistically significantly greater amounts than in the eluates of the ′tooth groupsâ€? The residual dentin and/or adhesive layers acted as a diffusion barrier for most of the substances except for triethylene glycol dimethacrylate (TEGDMA) or diethylene glycol dimethacrylate (DEGDMA). For TEGDMA up to 3 orders of magnitude more were found in the ′tooth groupsâ€?compared to the ′direct BF-RBCâ€?groups, evidently released by the adhesive system.Substances of Very High Concern (SVHC) including TINUVIN 328 and BPA were found mainly in the eluates of ′direct BF-RBCâ€?groups.For estimation of biocompatibility, a total system, specifically BF-RBC + adhesive, should always be investigated since individual considerations, such as only elution from a BF-RBC, do not correctly reflect the total clin. situation. The focus of elution tests should not only be on the co(monomers), but also on other ingredients or impurities that may be released.

Dental Materials published new progress about 10287-53-3. 10287-53-3 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Ester, name is Ethyl 4-dimethylaminobenzoate, and the molecular formula is C11H15NO2, Safety of Ethyl 4-dimethylaminobenzoate.

Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics