Esters-buliding-blocks

Shegavi, Mahadev L. published the artcileRecyclable Copper Nanoparticles-Catalyzed Hydroboration of Alkenes and β-Borylation of α,β-Unsaturated Carbonyl Compounds with Bis(Pinacolato)Diboron, Related Products of esters-buliding-blocks, the publication is Advanced Synthesis & Catalysis (2021), 363(9), 2408-2416, database is CAplus.

Nano-ferrite-supported Cu nanoparticles (Fe-dopamine-Cu NPs) catalyzed anti-Markovnikov-selective hydroboration of alkenes with B₂pin₂ is reported under mild reaction conditions. This protocol can be applied to a broad range of substrates with high functional group compatibility. In addition, authors demonstrated the use of Fe-dopamine-Cu NPs as a catalyst for the β-borylation of α,β-unsaturated ketones and ester, providing alkylboronate esters in up to 98% yield. Reuse of the magnetically recyclable catalyst resulted in no significant loss of activity in up to five reaction runs for both systems.

Advanced Synthesis & Catalysis published new progress about 103-26-4. 103-26-4 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester,Protease,Tyrosinase,Natural product, name is Methyl 3-phenyl-2-propenoate, and the molecular formula is C18H28B2O4, Related Products of esters-buliding-blocks.

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

Kumar, Vinod published the artcileTuning Cationic Micelle Properties with an Antioxidant Additive: A Molecular Perspective, Application of Propyl 3,4,5-trihydroxybenzoate, the publication is Langmuir (2021), 37(15), 4611-4621, database is CAplus and MEDLINE.

In this work, we characterize the micellization and morphol. transition induced in aqueous cetyltrimethylammonium bromide (CTAB) solution by the addition of the antioxidant Pr gallate (PG) using tensiometry, rheol., and small-angle neutron scattering (SANS) techniques combined with the mol. dynamics (MD) simulation approach. The adsorption of CTAB at the air-water interface in the presence of varying [PG] revealed a progressive decrease in the critical micelle concentration (CMC), while the changes in different interfacial parameters indicated enhancement of the hydrophobicity induced by PG in the CTAB micellar system. The dynamic rheol. behavior indicated an increase in the flow viscosity (η) as a function of [PG]. Moreover, the rheol. components (storage modulus, G’, and loss modulus, G”) depicted the viscoelastic features. SANS measurements depicted the existence of ellipsoidal micelles with varying sizes and aggregation number (N_agg) as a function of [PG] and temperature Computational simulation performed using d. functional theory (DFT) calculations and mol. dynamics (MD) provided an insight into the at. composition of the examined system. The mol. electrostatic potential (MEP) anal. depicted a close proximity of CTAB, i.e., emphasized favorable interactions between the quaternary nitrogen of CTAB and the hydroxyl group of the PG monomer, further validated by the two-dimensional nuclear Overhauser enhancement spectroscopy (2D-NOESY), which showed the penetration of PG inside the CTAB micelles. In addition, various dynamic properties, viz., the radial distribution function (RDF), the radius of gyration (R_g), and solvent-accessible surface area (SASA), showed a significant microstructural evolution of the ellipsoidal micelles in the examined CTAB-PG system, where the changes in the micellar morphol. with a more elongated hydrophobic chain and the increased R_g and SASA values indicated the notable intercalation of PG in the CTAB micelles.

Langmuir published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, Application of Propyl 3,4,5-trihydroxybenzoate.

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

Nannaware, Ashween Deepak published the artcileEco-friendly solar distillation apparatus for improving the yield of essential oils with enhancing organoleptic characteristics, Formula: C10H10O2, the publication is Renewable Energy (2022), 345-356, database is CAplus.

Solar-operated distillation unit (SDU) was designed and fabricated for extraction of valuable essentials from aromatic crops with a reduced cost of operation without carbon-credits to the environment. It comprised of distillation still, mesh grid frame, packed column, condenser, oil receiver, energy meter, resistive heating elements, and solar panels. This improved SDU can process 20 kg of aromatic crops in a batch type of operation. Resistive heating elements (4.5 kW) with controllers powered by the solar photovoltaic panel (5 kW) were used to produce the uniform steam generation within 20 min. This produced steam was adequate for continuous distillation (~3 h) of aromatic crops to collect valuable essentials in an oil receiver. The total power consumed by the SDU in carrying out the distillation operation was calculated (13.5 kWh). The extraction studies of Ocimum cultivars (CIM-Shishir, 100 and 102) through SDU and Clevenger-type apparatus (standard set) revealed that the SDU process was yielded improved essential oil (0.36-0.73%). GC-FID and GC/MS analyses divulged that the essential oil obtained through SDU was superior in quality with improved percentage of biomarkers such as linalool (up to 62.8%) and Me chavicol. Designed SDU has saved about 20 kg of wood per batch as compared to practiced wood-based distillation operation.

Renewable Energy published new progress about 103-26-4. 103-26-4 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester,Protease,Tyrosinase,Natural product, name is Methyl 3-phenyl-2-propenoate, and the molecular formula is C10H10O2, Formula: C10H10O2.

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

Trollss, Mikael published the artcileNovel Thermally Stable Polymer Materials for Second-Order Nonlinear Optics, Product Details of C15H14O3, the publication is Macromolecules (1996), 29(7), 2590-8, database is CAplus.

A novel method of preparing thermally stable thin films with intrinsic second-order nonlinear optical activity is described. Design and synthesis yielded new ferroelec. bifunctional liquid crystalline acrylate monomer mixtures with a fast electro-optical response in the chiral smectic C (SmC*) phase. The ferroelec. liquid crystalline monomer mixtures were poled and subsequently cross-linked by in-situ photopolymerization in the surface-stabilized ferroelec. liquid crystal state. After crosslinking the polarization is no longer reversible, hence the material is pyroelec. and not ferroelec. The cross-linked pyroelec. materials displayed a thermally stable nonlinear optical response.

Macromolecules published new progress about 50670-76-3. 50670-76-3 belongs to esters-buliding-blocks, auxiliary class Benzene,Phenol,Ester, name is Ethyl 4′-hydroxy-[1,1′-biphenyl]-4-carboxylate, and the molecular formula is C18H26ClN3O, Product Details of C15H14O3.

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

Delfanian, Mojtaba published the artcileEffect of Steric Structure on the Mechanism of Antioxidant Activity of Alkyl Gallates in Soybean Oil Triacylglycerols-A Kinetic Approach, SDS of cas: 121-79-9, the publication is European Journal of Lipid Science and Technology (2021), 123(9), 2100019, database is CAplus.

From an interfacial phenomena standpoint, the effect of the alkyl chain length is evaluated on the mechanism of antioxidant activity of gallic acid ester derivatives (Me, Pr, octyl, dodecyl, and stearyl gallates) in bulk phase oil. A combinational kinetic model is used to estimate the oxidation kinetic parameters, such as induction period, the maximum concentration of lipid hydroperoxides, and critical reverse micelle concentration These kinetic parameters are estimated much better with the combinational model compared to the tangent method. The nonlinear behavior is observed for inhibitory activities of homologous series of antioxidants in soybean triacylglycerols. In terms of different kinetics parameters, including antioxidant effectiveness and activity, Me gallate has the highest inhibitory effect during lipid peroxidation Gallic acid and alkyl gallates are able to protect bulk oils against peroxidation (induction period > 336 h) in terms of the extent of their participation in the main reaction of chain termination and pro-oxidative side reactions of chain initiation, and anti-oxidative side reactions of chain propagation. This work explains the effect of the esterification in the inhibitory activity of alkyl gallates, mechanism action of alkyl gallates in bulk oil systems, antiradical potency as a function of the interfacial phenomena, and free radical chain mechanism, the impact of antioxidant activity on critical reverse micelle concentration of hydroperoxides. Moreover, in this study, it is confirmed that the combinational kinetic model can be employed as a reliable method for determining the oxidation kinetic parameters.

European Journal of Lipid Science and Technology published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C10H12O5, SDS of cas: 121-79-9.

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

Gupta, Aniket published the artcileCooperativity between the Substrate and Ligand in Palladium-Catalyzed Allylic Alkylation Using 1-Aryl-1-propynes, SDS of cas: 30414-53-0, the publication is Journal of Organic Chemistry (2022), 87(15), 10366-10371, database is CAplus and MEDLINE.

A monoprotected amino acid Bz-Gly-OH assists in the allylic alkylation of a variety of ketones, β-keto esters, aldehydes, etc., during enamine-palladium catalysis to gave alkylated products such as R¹C(O)CHR²CH₂CH=CHAr [R¹ = Me, Et, n-Pr; R² = Et, C(O)OMe, C(O)OEt, C(O)OBn, etc.; R¹R² = (CH₂)₃, (CH₂)₄, (CH₂)₅, etc.]. D. functional theory calculations revealed that Bz-Gly-OH assisted in the formation of an enamine that attacks the π-allylpalladium complex via an outer sphere mechanism. The preliminary result pointed to an asym. allylic alkylation under a new mode of bifunctional catalysis.

Journal of Organic Chemistry published new progress about 30414-53-0. 30414-53-0 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ketone,Ester, name is Methyl 3-oxovalerate, and the molecular formula is C6H10O3, SDS of cas: 30414-53-0.

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

Dutta, Soumya published the artcileIodine mediated direct coupling of benzylic alcohols with dithiocarbamate anions: An easy access of S-benzyl dithiocarbamate esters under neat reaction condition, Recommanded Product: Benzyl diethylcarbamodithioate, the publication is Tetrahedron Letters (2020), 61(41), 152382, database is CAplus.

An efficient, metal and solvent free synthesis of S-benzylic dithiocarbamate esters has been demonstrated via the iodine mediated direct C-S coupling of benzylic alcs. with dithiocarbamate anions generated in-situ by the reactions of amines and carbon disulfide. All the reactions were very fast (15-30 min) and performed under open air atm. Cyclic and acyclic secondary amines, primary amine, aromatic amine actively participated in the one-pot coupling reactions with different benzylic alcs. Non benzylic alcs. offer the synthesis of O-thiocarbamate compounds under the identical reaction condition.

Tetrahedron Letters published new progress about 3052-61-7. 3052-61-7 belongs to esters-buliding-blocks, auxiliary class Amine,Benzene,Amide, name is Benzyl diethylcarbamodithioate, and the molecular formula is C12H17NS2, Recommanded Product: Benzyl diethylcarbamodithioate.

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

Bagheri, Farshid published the artcileEffect of dimethyl fumarate on the changes in the medial prefrontal cortex structure and behavior in the poly(I:C)-induced maternal immune activation model of schizophrenia in the male mice, Formula: C6H8O4, the publication is Behavioural Brain Research (2022), 113581, database is CAplus and MEDLINE.

The link between maternal immune activation (MIA) and the risk of developing schizophrenia (SCZ) later in life has been of major focus in recent years. This link could be bridged by activated inflammatory pathways and excessive cytokine release resulting in adverse effects on behavior, histol., and cytoarchitecture. The down-regulatory effects of immunomodulatory agents on the activated glial cells and their therapeutic effects on schizophrenic patients are consistent with this hypothesis. We investigated whether treatment with the anti-inflammatory drug di-Me fumarate (DMF) could rescue impacts of prenatal exposure to polyinosinic:polycytidylic acid [poly (I:C)]. Pregnant dams were administered poly(I:C) at gestational day 9.5. Offspring born from these mothers were treated with DMF for fourteen consecutive days from postnatal day 80 and were assessed behaviorally before and after treatment. The brains were then stained with Cresyl Violet or Golgi-Cox. In addition to the estimation of stereol. parameters, cytoarchitectural changes were also evaluated in the medial prefrontal cortex. MIA caused some abnormalities in behavior, as well as changes in the number of neurons and non-neurons. These alterations were also extended to pyramidal layer III neurons with a significant decrease in dendritic complexity and spine d. which DMF treatment could prevent these changes. Furthermore, DMF treatment was also effective against abnormal exploratory and depression-related behavior, but not the changes in the number of cells. These findings support the idea of using anti-inflammatory agents as adjunctive therapy in patients with SCZ.

Behavioural Brain Research published new progress about 624-49-7. 624-49-7 belongs to esters-buliding-blocks, auxiliary class Inhibitor,Natural product, name is Dimethyl fumarate, and the molecular formula is C6H8O4, Formula: C6H8O4.

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

Hajipour, Abdol R. published the artcileTriazine-hyperbranched polymer-modified magnetic nanoparticles-supported nano-cobalt for C-C cross-coupling reactions, Application of Methyl 3-phenyl-2-propenoate, the publication is Journal of the Iranian Chemical Society (2021), 18(12), 3219-3233, database is CAplus.

Design of hyperbranched polymers (HBPs) and crafting them in catalytic systems especially in organic chem. are a relatively unexplored domain. This paper reports the utilization of triazine hyperbranched polymer (THBP)-coated magnetic chitosan nanoparticles (MCs) as stabilizing matrix for cobalt nanoparticles. Cobalt nanoparticles were fabricated by coordination cobalt(II) ions with amine-terminated triazine polymer and then reduced into Co(0) using sodium borohydride in aqueous medium. The Co(0)-THBP@MCs were fully characterized by FT-IR, SEM-EDX, TEM, and TGA analyses. The presence of metallic cobalt was determined by ICP and XRD techniques. This novel hyperbranched polyaromatic polymer-encapsulated cobalt nanoparticles showed high catalytic activity in Mizoroki-Heck and Suzuki-Miyaura cross-coupling reactions. Heck and Suzuki reactions were carried out using 0.35 and 0.4 mol% of cobalt nanoparticles in which the turnover number (TON) values were calculated as 271 and 225, resp. In addition, the produced heterogeneous catalyst could be recovered and reused without considerable loss of activity. Oxygen stability and high reusability over 7 runs with trace leaching of the cobalt into the reaction media as well as moisture stability of the immobilized cobalt nanoparticles are their considerable worthwhile advantages.

Journal of the Iranian Chemical Society published new progress about 103-26-4. 103-26-4 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester,Protease,Tyrosinase,Natural product, name is Methyl 3-phenyl-2-propenoate, and the molecular formula is C10H10O2, Application of Methyl 3-phenyl-2-propenoate.

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

Soleimani, Adel published the artcileSynthesis, Characterization and Thermal Properties of Intrinsic Self-Healing Polyurethane Nanocomposites, Name: Propyl 3,4,5-trihydroxybenzoate, the publication is ChemistrySelect (2022), 7(16), e202103978, database is CAplus.

A hybrid thermo-reversible crosslinking polyurethane nanocomposite containing 0.5, 1, and 2 weight% of nano-silica was prepared with three intrinsic self-healing bonds (reversible covalent bonds supported by intrinsic hydrogen bonds and dangling chains). Owing to the introduction of pseudo-tannin and polyester diol that could form phenol-urethane networks and using nano-silica that causes dangling chains and hydrogen bonds, the prepared polyurethanes are capable of being reversed at 110°C and rejoin at low temperatures Thermoset self-healing polyurethane nanocomposites are prepared from pseudo-tannin, nano-silica, and a urethane-based prepolymer. The investigations of chem. structure, self-healing behavior, and crosslink network are carried out by Fourier Transform IR Spectroscopy (FTIR), Differential Scanning Calorimetry (DSC) technique, and swelling test. Dissociation of phenolic urethane at 110°C was confirmed by temperature variable FTIR. By swelling test, it was found that the self-healing polyurethane nanocomposites with 0.5 weight% of nano-silica have the most hard-domain, gel content, and crosslink d. in the samples. DSC technique shows that polyurethane samples have two heat transfer transitions (dangling chains and self-healing). Thermogravimetric anal. (TGA) findings show that nanocomposites decompose at elevated temperatures than neat PU, and the rate of degradation diminishes as silica content increases.

ChemistrySelect published new progress about 121-79-9. 121-79-9 belongs to esters-buliding-blocks, auxiliary class Natural product, name is Propyl 3,4,5-trihydroxybenzoate, and the molecular formula is C11H21BF4N2O2, Name: Propyl 3,4,5-trihydroxybenzoate.

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