Category: 103-26-4

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

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

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

Nobsathian, Saksit published the artcileThe insecticidal potential of Piper ribesioides (Piperales: Piperaceae) extracts and isolated allelochemicals and their impact on the detoxification enzymes of Spodoptera exigua (Lepidoptera: Noctuidae), Synthetic Route of 103-26-4, the publication is Phytoparasitica (2021), 49(4), 659-673, database is CAplus.

The dried twigs of Piper ribesioides were used to prepare various extracts in different solvents. Each extract was evaluated for their toxicity against 2nd instar larvae of Spodoptera exigua. The highest acute toxicity was observed for Et acetate extract with an LD50 of 3.25 and 2.50 μg/larva and LD90 of 9.19 and 8.15 μg/larva after 24 and 48 h post-treatment after topical application. Piperine, Me piperate, N-cinnamoyl-(2-phenylethyl) amine, pinostrobin, pinocembrin, cinnamic acid, lemairamin, N,N-Diphenylcinnamide, and Me cinnamate were isolated from this extract that was toxic to S. exigua larvae. Cinnamic acid was the most active compound with a LD50 of 0.17 μg/larva after 48 h of topical treatment. Piperine was significantly similar in activity (LD50 = 0.19 μg/larva), but toxicity decreased with the change in structural configuration as observed with Me piperate (LD50 = 0.73 μg/larva). Other compounds were 3 to 11-fold less toxic than cinnamic acid and piperine. Growth of survived S. exigua larvae until adult emergence after topical application was recorded and maximum inhibition of about 70% was observed after the application of cinnamic acid. Egg hatch was only 29.11% after cinnamic acid treatment, compared to 97.38% in controls. Neither induction nor inhibition of detoxification enzymes due to treatment of extracts were statistically significant, however, individual compounds like cinnamic acid, Me cinnamate, piperine, pinostrobin, pinocembrin, and lemairamin did show a moderate impact on these enzymes.

Phytoparasitica 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, Synthetic Route of 103-26-4.

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

Sim, Jeongwoo published the artcileElectrochemical C(sp³)-H Functionalization of γ-Lactams Based on Hydrogen Atom Transfer, HPLC of Formula: 103-26-4, the publication is Organic Letters (2022), 24(23), 4264-4269, database is CAplus and MEDLINE.

The electrochem. α-amidoalkylation of γ-lactams based on transition-metal-free cross-coupling via hydrogen atom transfer was described. The highly selective hydrogen atom transfer process allows for a broad substrate scope including both inter- and intramol. reactions. Also, the construction of quaternary centers was realized by a double hydrogen atom transfer protocol to afford spirocycles. Detailed mechanistic studies including exptl. and computational studies are provided to support the reaction pathway.

Organic Letters 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, HPLC of Formula: 103-26-4.

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

Bhattacharjee, Jayeeta published the artcileA highly efficient Ti-catalyst for the deoxygenative reduction of esters under ambient conditions: experimental and mechanistic insights from DFT studies, Product Details of C10H10O2, the publication is Dalton Transactions (2022), 51(15), 5859-5867, database is CAplus and MEDLINE.

Titanium(IV) phosphinous amide-borane chelate complexes I (1, 2; X = Cl, CH₂SiMe₃) were prepared as catalysts for deoxygenative reduction of carboxylic esters RCO₂R¹ with pinacolborane, affording benzyl borates RCH₂OBpin. In this paper, we report the synthesis of amidophosphineborane-supported titanium chloride 1 and alkyl complex 2 were prepared using a salt metathesis reaction. Ti^IV complex 1 was obtained by the reaction of the bis-borane ligand [{Ph₂P(BH₃)NH}₂C₆H₄] and TiCl₄ in toluene followed by the addition of 2 equiv of [LiN(SiMe₃)₂] at ambient temperature Ti^IV bis-alkyl complex 2 was isolated from the reaction of complex 1 with 2.5 equiv of LiCH₂SiMe₃ in toluene. The solid-state structure of complex 1 is established by single-crystal X-ray diffraction anal. Ti^IV bis-alkyl complex 2 has proved to be a competent catalyst in the deoxygenative reduction of aliphatic and aromatic esters with pinacolborane (HBpin) to afford corresponding boryl ethers at room temperature under solvent-free conditions. Catalyst 2 exhibits chemoselectivity toward ester functionalities over halides, heteroatoms, olefins, and amino functional groups. DFT studies demonstrate that the active form of catalyst 2 is capable of easily transferring its hydrides to ester substrates at room temperature The studies further reveal that the rate-limiting step (RLS) in an ester-to-boryl ether conversion is the cleavage of the C-O bond of an ester. In brief, the titanium-catalyzed ester-to-boryl ether conversions are found to be downhill processes having small activation barriers along all mechanistic steps.

Dalton Transactions 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, Product Details of C10H10O2.

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

Khan, Danish published the artcileDesign, Synthesis and Characterization of Aurone Based α,β-unsaturated Carbonyl-Amino Ligands and their Application in Microwave Assisted Suzuki, Heck and Buchwald Reactions, Synthetic Route of 103-26-4, the publication is Asian Journal of Organic Chemistry (2022), 11(1), e202100638, database is CAplus.

A new series of phosphine-free aurone-based α,β-unsaturated carbonyl-amino bidentate ligands I [R¹ = 2-furanyl, Ph, 3-4-dimethoxyphenyl, etc.; R² = Ph, 3-nitrophenyl, 1-naphthyl, etc.] were synthesized and characterized via different anal. techniques such as IR, ¹H-NMR, ¹³C-NMR and mass spectrometry. Moreover, the structure of ligand I [R¹ = 2-furanyl; R² = 2-nitrophenyl] was also characterized by single-crystal X-ray diffraction. The synthesized ligands I with the PdCl₂ salt showed excellent catalytic activity in the Suzuki-Miyaura, Mizoroki-Heck and Buchwald-Hartwig reactions. A broad range of substrates including heterocycles, chalcones and sterically hindered coupling partners were well tolerated in the developed protocol. Addnl., the metal complex formed in the catalytic cycle was characterized by ¹H-NMR spectroscopy and mass spectrometry.

Asian Journal of Organic Chemistry 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, Synthetic Route of 103-26-4.

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

Teixeira, Natercia published the artcileIn-depth phenolic characterization of iron gall inks by deconstructing representative Iberian recipes, Recommanded Product: Methyl 3-phenyl-2-propenoate, the publication is Scientific Reports (2021), 11(1), 8811, database is CAplus and MEDLINE.

Iron-gall ink is one of the most important inks in the history of western civilization. The deep black color results from Fe³⁺ complexes with phenolic compounds available in gall extracts Unfortunately, it induces the degradation of both ink and support over time. Furthermore, our knowledge of these complex mol. structures is limited. This work aims to overcome this gap, revealing essential information about the complex structures of these pigments and dyes that will create a breakthrough in the next generation of conservation treatments. It presents the first in-depth phenolic identification and quantification of extracts and inks, prepared with and without gum arabic (an essential additive in medieval recipes). Five representative Iberian recipes were selected and prepared Their phenolic profile was analyzed by HPLC-DAD and HPLC-ESI-MS, which revealed that the phenolic compounds present in higher concentration, in the gall extracts, are pentagalloylglucose and hexagalloylglucose (0.15 ± 0.01-32 ± 3 mg/mL), except for one recipe, in which gallic acid is the main phenolic. The influence of the ingredients is also discussed by deconstructing the recipes: extracts of additives as pomegranate peel and solvents used in the extraction of the galls (vinegar and white wine) were characterized.

Scientific Reports 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 C3H6O2, Recommanded Product: Methyl 3-phenyl-2-propenoate.

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

Schumacher, Christian published the artcileMechanochemical Syntheses of N-Containing Heterocycles with TosMIC, HPLC of Formula: 103-26-4, the publication is Journal of Organic Chemistry (2021), 86(20), 14213-14222, database is CAplus and MEDLINE.

A mechanochem. van Leusen pyrrole synthesis with a base leads to 3,4-disubstitued pyrroles in moderate to excellent yields. The developed protocol is compatible with a range of electron-withdrawing groups and can also be applied to the synthesis of oxazoles. Attempts to mechanochem. convert the resulting pyrroles into porphyrins proved to be difficult.

Journal of Organic Chemistry 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 C10H2F12NiO4, HPLC of Formula: 103-26-4.

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

Khachatoorian, Careen published the artcileTracing the movement of electronic cigarette flavor chemicals and nicotine from refill fluids to aerosol, lungs, exhale, and the environment, HPLC of Formula: 103-26-4, the publication is Chemosphere (2022), 286(Part_3), 131494, database is CAplus and MEDLINE.

Given the high concentrations of nicotine and flavor chems. in EC (electronic cigarette) fluids, it is important to determine how efficiently they transfer to aerosols, how well they are retained by users (exposure), and if they are exhaled into the environment where they settle of surfaces forming ECEAR (EC exhaled aerosol residue). To quantify the flavor chems. and nicotine in refill fluids, inhaled aerosols, and exhaled aerosols. Then deduce their retention and contribution to ECEAR. Flavor chems. and nicotine were identified and quantified by GC-MS in two refill fluids, smoking machine-generated aerosols, and aerosols exhaled by 10 human participants (average age 21; 7 males). Machine generated aerosols were made with varying puff durations and two wattages (40 and 80). Participants generated exhale ad libitum; their exhale was quantified, and chem. retention and contribution to ECEAR was modeled.”. Dewberry Cream” had five dominant (≥1 mg/mL) flavor chems. (maltol, ethyl maltol, vanillin, Et vanillin, furaneol), while “Cinnamon Roll” had one (cinnamaldehyde). Nicotine transferred well to aerosols irresp. of topog.; however, transfer efficiencies of flavor chems. depended on the chem., puff volume, puff duration, pump head, and EC power. Participants could be classified as “mouth inhalers” or “lung inhalers” based on their exhale of flavor chems. and nicotine and retention. Lung inhalers had high retention and exhaled low concentrations of EC chems. Only mouth inhalers exhaled sufficient concentrations of flavor chems./nicotine to contribute to chem. deposition on environmental surfaces (ECEAR). These data help distinguish two types of EC users, add to our knowledge of chem. exposure during vaping, and provide information useful in regulating EC use.

Chemosphere 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, HPLC of Formula: 103-26-4.

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