Esters-buliding-blocks

Tamaki, Yoshio published the artcileSelection of disruptants of pheromonal communication in both the smaller tea tortrix moth and the tea tortrix moth (Lepodeptera:Tortricidae), Computed Properties of 16974-11-1, the publication is Nippon Oyo Dobutsu Konchu Gakkaishi (1983), 27(2), 124-30, database is CAplus.

Six pheromonal components of the smaller tea tortrix moth and the tea tortrix moth and their 5 related compounds were evaluated for their activities as communication disruptants. When placed outside of synthetic pheromone traps, (Z)-11-tetradecenyl acetate (I) [20711-10-8], (Z)-9-tetradecenyl acetate (II) [16725-53-4], and (Z)-9-dodecenyl acetate (III) [16974-11-1] inhibited the attractancy of both pheromone mixtures for male moths. Mating of tethered females of the smaller tea tortrix moth was suppressed by I, whereas that of the tea tortrix moth was suppressed by I, III, and synthetic pheromone mixtures of both species. I and a 1:1:1 mixture of I, II, and III were the most effective communication disruptants toward both species.

Nippon Oyo Dobutsu Konchu Gakkaishi published new progress about 16974-11-1. 16974-11-1 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is (Z)-Dodec-9-en-1-yl acetate, and the molecular formula is C12H15NO, Computed Properties of 16974-11-1.

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

Tamaki, Yoshio published the artcileDecreased rates of pheromonal components in attractant formulations for tea tortricid moths under field conditions, Safety of (Z)-Dodec-9-en-1-yl acetate, the publication is Nippon Oyo Dobutsu Konchu Gakkaishi (1983), 27(2), 154-6, database is CAplus.

Attractant formulations for tea tortricid moths, in rubber septums or plastic capsules, containing a 7:3:1:20 mixture of (Z)-9-tetradecenyl acetate (I) [16725-53-4], (Z)-11-tetradecenyl acetate (II) [20711-10-8], (E)-11-tetradecenyl acetate (III) [33189-72-9], and 10-methyldodecyl acetate (IV) [70711-42-1], or a 60:3:1 mixture of II, (Z)-9-dodecenyl acetate (V) [16974-11-1], and 11-dodecenyl acetate (VI) [35153-10-7] were held in the field under direct sunlight, and dissipation of these components was studied. Each component dissipated faster from plastic capsules than from rubber septums. Lower initial contents gave shorter half lives. Components with lower mol. weights dissipated faster. Ratios of residual amounts of I, II, III, and IV in rubber and plastic preparations kept for 100 and 60 days, resp., were within the optimum range for attracting the smaller tea tortrix moth, and those of II, V, and VI in rubber and plastic preparations held for 60 and 30 days, resp., were also within the optimum range for attracting the tea tortrix moth. Decreases in the effectiveness of attractant formulations for tea tortricid moths in the field were ascribed to decreases in volatilization rates and not to alterations of optimum component ratios.

Nippon Oyo Dobutsu Konchu Gakkaishi published new progress about 16974-11-1. 16974-11-1 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is (Z)-Dodec-9-en-1-yl acetate, and the molecular formula is 0, Safety of (Z)-Dodec-9-en-1-yl acetate.

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

Mustapha, Siti Noor Hidayah published the artcileSynthesis and characterization of hydrophobic properties of silicon dioxide in palm oil based bio-coating, Name: Trimethylolpropane triacrylate, the publication is Materials Today: Proceedings (2022), 51(Part_2), 1415-1419, database is CAplus.

This research aims to synthesize a biobased polyurethane coating from epoxidized palm oil (EPO) and determine the effect of different silicon dioxide (SiO₂) loadings on the hydrophobicity performance of the coating. In this work, EPO was firstly undergoing an acrylation reaction and followed by the addition of isophorone diisocyanate (IPDI) to form Polyurethane (PU). Improvement was made by adding SiO₂ at different loadings into the palm oil-based PU to provide hydrophobic properties to the coating materials. The sample was characterized using Fourier Transform IR Spectroscopy (FTIR), water sliding angle test, and water absorption test. Based on the FTIR results, PU was successfully synthesized from EPO with SiO₂ addition The results also proved that the addition of SiO₂ successfully improved the hydrophobicity of the coating. The higher the SiO₂ content in palm oil PU, the shorter the time taken for the water to slide down the 25° angle coated glass and lower the water absorption percentage of the coating material. Based on the anal., 3 phr SiO₂ content showed the highest hydrophobicity performance, which could be applied in further research.

Materials Today: Proceedings published new progress about 15625-89-5. 15625-89-5 belongs to esters-buliding-blocks, auxiliary class Polymerization Reagents,Crosslinkers, name is Trimethylolpropane triacrylate, and the molecular formula is C15H20O6, Name: Trimethylolpropane triacrylate.

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

Li, Jian published the artcileSupramolecular Polydimethylsiloxane Elastomer with Enhanced Mechanical Properties and Self-Healing Ability Engineered by Synergetic Dynamic Bonds, Recommanded Product: 3-Acetyldihydrofuran-2(3H)-one, the publication is ACS Applied Polymer Materials (2021), 3(7), 3373-3382, database is CAplus.

Hydrophobic elastomers are required for use in industry and daily life because of their versatile properties. Developing a hydrophobic elastomer with self-healing abilities and excellent mech. performance has been very challenging because of the mutually exclusive nature of these properties. Herein, supramol. polydimethylsiloxane (PDMS) elastomers with excellent self-healing and mech. properties were designed through the synergetic combination of multistrength H-bonds and disulfide bonds. The hierarchical H-bonds formed with urethane, urea, and 2-ureido-4[1H]-pyrimidinone (UPy) moieties in the backbone of the supramol. polymer endow the resultant polymers with effective reversible crosslinking, whereas during stretching, the dynamic dissociation and reassociation of H-bonds enable polymers with high extensibility and enhanced toughness and recoverability. In addition, disulfide bond exchange under heat enables polymer network rearrangement, thus imbuing the supramol. elastomer with excellent self-healing ability. Based on the extraordinary properties of hydrophobic supramol. PDMS elastomers, some smart materials can be prepared, such as oil/water separation foams and hydrophobic hot-melt adhesives. Therefore, this concept of synergetic dynamic bonds will point out a direction for the development of sustainable, green, and functional materials of the next generation.

ACS Applied Polymer Materials published new progress about 517-23-7. 517-23-7 belongs to esters-buliding-blocks, auxiliary class Tetrahydrofuran,Ketone,Ester, name is 3-Acetyldihydrofuran-2(3H)-one, and the molecular formula is C6H8O3, Recommanded Product: 3-Acetyldihydrofuran-2(3H)-one.

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

Lacivita, Enza published the artcilePrivileged scaffold-based design to identify a novel drug-like 5-HT₇ receptor-preferring agonist to target Fragile X syndrome, Computed Properties of 115314-17-5, the publication is European Journal of Medicinal Chemistry (2020), 112395, database is CAplus and MEDLINE.

Recent preclin. studies have shown that activation of the serotonin 5-HT₇ receptor has the potential to treat neurodevelopmental disorders such as Fragile X syndrome, a rare disease characterized by autistic features. With the aim to provide the scientific community with diversified drug-like 5-HT₇ receptor-preferring agonists, we designed a set of new long-chain arylpiperazines by exploiting structural fragments present in clin. approved drugs or in preclin. candidates (privileged scaffolds). The new compounds were synthesized, tested for their affinity at 5-HT₇ and 5-HT_1A receptors, and screened for their in vitro stability to microsomal degradation and toxicity. Selected compounds were characterized as 5-HT₇ receptor-preferring ligands, endowed with high metabolic stability and low toxicity. Compound 7g emerged as a drug-like 5-HT₇ receptor-preferring agonist capable to rescue synaptic plasticity and attenuate stereotyped behavior in a mouse model of Fragile X syndrome.

European Journal of Medicinal Chemistry published new progress about 115314-17-5. 115314-17-5 belongs to esters-buliding-blocks, auxiliary class Epoxides,Chiral,Nitro Compound,Sulfonate,Benzene, name is (R)-Oxiran-2-ylmethyl 3-nitrobenzenesulfonate, and the molecular formula is C9H9NO6S, Computed Properties of 115314-17-5.

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

Shigehisa, Hiroki published the artcileCobalt-Catalyzed Hydrofluorination of Unactivated Olefins: A Radical Approach of Fluorine Transfer, Recommanded Product: 3-Methylbut-2-en-1-yl benzoate, the publication is Organic Letters (2013), 15(20), 5158-5161, database is CAplus and MEDLINE.

Alkyl fluorides were prepared regioselectively in 41-82% yields by hydrofluorination of alkenes with 1-fluoro-2,4,6-trimethylpyridinium tetrafluoroborate and 1,1,3,3-tetramethyldisiloxane in the presence of a cobalt salen complex; the reactions occurred to give the Markovnikov regioisomers exclusively, tolerated acetal, ester, amide, tosylate, nitro, bromo, and thienyl moieties, and were performed (in three cases) on approx. 1 g scale in similar yields to those found on smaller scale. Reaction of a diallylsulfonamide yielded a fluoroalkylpyrrolidine, implying the generation of a radical intermediate in the hydrofluorination reaction.

Organic Letters published new progress about 5205-11-8. 5205-11-8 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Benzene,Ester, name is 3-Methylbut-2-en-1-yl benzoate, and the molecular formula is C12H25Br, Recommanded Product: 3-Methylbut-2-en-1-yl benzoate.

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

Wierzbicki, Michael published the artcileEngineering an Escherichia coli platform to synthesize designer biodiesels, Computed Properties of 110-34-9, the publication is Journal of Biotechnology (2016), 27-34, database is CAplus and MEDLINE.

Biodiesels, fatty acid esters (FAEs), can be synthesized by condensation of fatty acid acyl CoAs and alcs. via a wax ester synthase in living cells. Biodiesels have advantageous characteristics over petrodiesels such as biodegradability, a higher flash point, and less emission. Controlling fatty acid and alc. moieties are critical to produce designer biodiesels with desirable physiochem. properties (e.g., high cetane number, low kinematic viscosity, high oxidative stability, and low cloud point). Here, we developed a flexible framework to engineer Escherichia coli cell factories to synthesize designer biodiesels directly from fermentable sugars. In this framework, we designed each FAE pathway as a biodiesel exchangeable production module consisting of acyl CoA, alc., and wax ester synthase submodules. By inserting the FAE modules in an engineered E. coli modular chassis cell, we generated E. coli cell factories to produce targeted biodiesels (e.g., fatty acid Et (FAEE) and iso-Bu (FAIbE) esters) with tunable and controllable short-chain alc. moieties. The engineered E. coli chassis carrying the FAIbE production module produced 54 mg/L FAIbEs with high specificity, accounting for >90% of the total synthesized FAEs and ∼4.7 fold increase in FAIbE production compared to the wildtype. Fed-batch cultures further improved FAIbE production up to 165 mg/L. By mixing ethanol and isobutanol submodules, we demonstrated controllable production of mixed FAEEs and FAIbEs. We envision the developed framework offers a flexible, alternative route to engineer designer biodiesels with tunable and controllable properties using biomass-derived fermentable sugars.

Journal of Biotechnology published new progress about 110-34-9. 110-34-9 belongs to esters-buliding-blocks, auxiliary class Aliphatic hydrocarbon chain,Ester, name is Isobutyl palmitate, and the molecular formula is C38H24F4O4P2, Computed Properties of 110-34-9.

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

Eberson, Lennart published the artcileElectron transfer reactions in organic chemistry. XXIII. Products, kinetics and inverted spin trapping in the reaction between carboxylates and hexachloroosmate(V) ion, Application In Synthesis of 5340-78-3, the publication is Acta Chemica Scandinavica (1993), 47(11), 1129-37, database is CAplus.

The reaction between carboxylates and hexachloroosmate(V) has been investigated. For carboxylates, RCOO^–, corresponding to radicals R^• which are difficult to oxidize (with E_i larger than ∼9 eV), the reaction gave one-electron oxidation products, as typified by the formation of C-to-N coupling products in good yield from tert-butylcyanoacetate ion. The kinetics of the reaction between the hydrogendiacetate ion and OsCl₆^– in acetonitrile was studied in more detail and found to conform to a kinetic model involving a second-order electron-transfer step between acetate ion (existing in equilibrium with acetic acid and hydrogen-diacetate ion) and OsCl₆^–. Attempts to trap R^• from the carboxylate/hexachloroosmate reaction by α-phenyl-N-tert-butylnitrone (PBN) led only to the formation of acyloxyl spin adducts, presumably via the reaction between PBN^•+ (formed by one-electron oxidation of PBN by the osmate) and the carboxylate ion. Other nucleophiles underwent the same type of reaction, previously denoted inverted spin trapping, and also the more oxidation-resistant spin trap 4-NO₂BPN was shown to possess this type of reactivity.

Acta Chemica Scandinavica published new progress about 5340-78-3. 5340-78-3 belongs to esters-buliding-blocks, auxiliary class Aliphatic Chain, name is Ethyltert-butylacetate, and the molecular formula is C8H16O2, Application In Synthesis of 5340-78-3.

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

Fagerstroem, Alexandra published the artcileNew propranolol analogues: binding and chiral discrimination by cellobiohydrolase Cel7A, Recommanded Product: (R)-Oxiran-2-ylmethyl 3-nitrobenzenesulfonate, the publication is Organic & Biomolecular Chemistry (2006), 4(16), 3067-3076, database is CAplus and MEDLINE.

Novel propranolol analogs have been designed and synthesized and their enantioselective binding to the cellulose degrading enzyme, Cel7A, has been evaluated. Affinity and enantioselectivity have been determined by capillary electrophoresis experiments Ligands with significantly improved affinity and selectivity have been obtained and an anal. of the results has led to insights concerning the relation between the changes in ligand structure and selectivity as well as affinity to the protein.

Organic & Biomolecular Chemistry published new progress about 115314-17-5. 115314-17-5 belongs to esters-buliding-blocks, auxiliary class Epoxides,Chiral,Nitro Compound,Sulfonate,Benzene, name is (R)-Oxiran-2-ylmethyl 3-nitrobenzenesulfonate, and the molecular formula is C9H9NO6S, Recommanded Product: (R)-Oxiran-2-ylmethyl 3-nitrobenzenesulfonate.

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

Segura, Javier H. published the artcileBoreal tree species affect soil organic matter composition and saprotrophic mineralization rates, COA of Formula: C6H8O3, the publication is Plant and Soil (2019), 441(1-2), 173-190, database is CAplus.

To investigate how different tree species affect the composition of SOM and its mineralization in boreal forest ecosystems. We used pyrolysis GC-MS for mol.-level characterization of the SOM formed under five common boreal tree species at a replicated field experiment ∼50years after plantation. We incubated soil samples at 4, 9, 14 and 19°C and measured inherent CO₂ production and substrate-induced respiration. We then evaluated if the saprotrophic microbial activity and its temperature sensitivity was controlled by the SOM composition The mol. composition of the SOM emerged as key factor influencing SOM properties in plots with different tree species. Most of the variance in the SOM content was explained by the organo-chem. composition of the SOM. More importantly, the fraction of the microbial community able to utilize the native SOM was largely controlled by the SOM organo-chem. composition Temperature sensitivity of CO₂ production (Q₁₀) was not explained by SOM composition However, the microbial access to different SOM pools varied with temperature These results bridge the gap between the paradigms of short-term litter and long-term SOM decomposition showing that, on an intermediate timescale (∼50 years), boreal tree species affect SOM mol. composition and saprotrophic mineralization rates.

Plant and Soil published new progress about 517-23-7. 517-23-7 belongs to esters-buliding-blocks, auxiliary class Tetrahydrofuran,Ketone,Ester, name is 3-Acetyldihydrofuran-2(3H)-one, and the molecular formula is C19H21N3O3S, COA of Formula: C6H8O3.

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