Esters-buliding-blocks

Chen, Hong published the artcileInterpenetrating polymer network hydrogels using natural based dyes initiating systems: Antibacterial activity and 3D/4D performance, Recommanded Product: Ethyl 4-dimethylaminobenzoate, the publication is European Polymer Journal (2022), 111042, database is CAplus.

In the past few decades, interpenetrating polymer network (IPN) hydrogels have attracted huge attention due to their special cell-like structures, interpenetrating interface, and two-phase continuity, which has special synergistic effects on their performance and function. In this work, the best candidates were selected from the firstly synthesized 11 dyes based on 1-aryl-3-(2,4,5-trimethoxyphenyl)prop-2-en-1-one or 3-aryl-1-(3,4,5-trimethoxyphenyl)prop, and then combined with an amine (i.e., 1,4-(dimethylamino) Et benzoate, EDB) and an iodonium salts (bis(4-tert-butylphenyl)iodonium hexafluorophosphate, Iod) as a three-component visible light photoinitiating systems (PIS) to induce both free-radical photopolymerization (FRP) of poly(ethylene glycol) diacrylate (PEG-DA) and cationic photopolymerization (CP) of 3,4-epoxycyclohexylmethyl-3′,4′-epoxycyclohexanecarboxylate (EPOX) and in situ reduction of silver cations into silver nanoparticles to prepare interpenetrating network polymers (IPN) with antibacterial activity for Gram-pos. bacteria (e.g. Staphylococcus aureus) and Gram-neg. bacteria (e.g. Pseudomonas aeruginosa). More interestingly, stable 3D patterns were successfully produced through direct laser write (DLW) technique, and they exhibited reversible swelling properties and shape memory effects caused by swelling and dehydration processes, thus enabling 4D printing.

European Polymer Journal 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

Sharma, Gangavaram V. M. published the artcileA simple and efficient protocol for the deprenylation of ethers and esters catalyzed by zirconium(IV) chloride-sodium iodide, Formula: C12H14O2, the publication is Synlett (2003), 1728-1730, database is CAplus.

An efficient protocol for the deprotection of prenyl ethers and esters is developed using 20 mol% ZrCl₄-NaI (1:1) in CH₃CN as a reagent system. A variety of substrates as well as functional groups well tolerate the present reaction conditions.

Synlett 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 C26H36N4O8, Formula: C12H14O2.

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

Procter, David J. published the artcileSynthesis of (R)-4,5-dihydro-3H-dinaphtho[2,1-c:1′,2′-e]selenepin oxide and preliminary studies on its use in the oxidation of sulfides, Recommanded Product: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), the publication is Synthetic Communications (2000), 30(16), 2975-2987, database is CAplus.

The first synthesis of the title compound (R)-I was achieved from (R)-(+)-1,1′-bi-2-naphthol, which in turn was obtained by resolution of rac-1,1′-bi-2-naphthol. Palladium catalyzed alkoxycarbonylation of ditriflate II (R = OSO₂CF₃) gave di-Me ester II (R = COOMe), which was then reduced and the resultant diol converted to key intermediate chloride II (R = CH₂Cl). Cyclization with sodium selenolate gave novel enantiomerically pure selenide, which upon oxidation yielded the desired selenoxide (R)-I. Preliminary studies on the oxidation of sulfides to sulfoxides using I and 2,2,2-trifluoroethanesulfonic acid are also described.

Synthetic Communications published new progress about 126613-06-7. 126613-06-7 belongs to esters-buliding-blocks, auxiliary class Chiral Diphenols, name is (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate), and the molecular formula is C22H12F6O6S2, Recommanded Product: (R)-[1,1′-Binaphthalene]-2,2′-diyl bis(trifluoromethanesulfonate).

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

Bose, Debdipta published the artcileImpact of disease-modifying therapies on MRI outcomes in patients with relapsing -remitting multiple sclerosis: A systematic review and network meta-analysis., Related Products of esters-buliding-blocks, the publication is Multiple sclerosis and related disorders (2022), 103760, database is MEDLINE.

BACKGROUND: Multiple sclerosis (MS) is a chronic autoimmune inflammatory demyelinating disorder of the central nervous system. The clinical presentation supported by characteristic findings on MRI forms the backbone of the current diagnostic criteria. This study was aimed to investigate the efficacy based on MRI outcomes of FDA approved disease-modifying therapies (DMTs) for relapsing-remitting MS (RRMS). MATERIALS AND METHODS: We searched PubMed, Embase, and the Cochrane Central Register of Controlled Trials for randomised controlled trials (RCTs) of DMTs. The outcome measures were the mean number of T2 [new/enlarging lesions], new T1 [gadolinium-enhancing (Gd+) T1 and hypointense T1] lesions in brain MRI performed at 12 months or 24 months. We performed a network meta-analysis using the frequentist approach in STATA version 16.0. RESULTS: We identified 26 RCTs for final analysis. Interferon β-1a and placebo were the most common comparison treatment. Ocrelizumab was more effective in reducing the number of Gd+T1 lesions. Dimethyl fumarate 480 mg was relatively better in reducing the number of new T2 lesions. The treatment ranking showed that ocrelizumab and dimethyl fumarate 480 mg were more efficacious (1 and 0.9 in SUCRA, respectively) for reducing the number of new Gd+T1/hypointense lesions; dimethyl fumarate 480 mg/720 mg and natalizumab were more efficacious (1.0, 0.9 and 0.8 in SUCRA, respectively) to reduce the number of new T2 lesions. CONCLUSION: Ocrelizumab, dimethyl fumarate 480/720 mg and natalizumab demonstrated favourable MRI outcomes in patients with the RRMS.

Multiple sclerosis and related disorders 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, Related Products of esters-buliding-blocks.

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

Arn, Heinrich published the artcileSex pheromone blends of three tortricid pests in European vineyards, Name: (Z)-Dodec-9-en-1-yl acetate, the publication is Agriculture, Ecosystems & Environment (1988), 21(1-2), 111-17, database is CAplus.

The sex pheromone glands of the 3 most important tortricids of European vineyards, Eupoecilia ambiguella, Sparganothis pilleriana, and Lobesia botrana have been chem. investigated and found to contain up to 15 different straight-chain acetates and alcs. Behavioral observations in the wind tunnel and field trapping demonstrate that in each species at least 3 female-produced components are involved in male attraction.

Agriculture, Ecosystems & Environment 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 C14H26O2, Name: (Z)-Dodec-9-en-1-yl acetate.

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

Arn, Heinrich published the artcileSex pheromone of Eupoecilia ambiguella female: analysis and male response to ternary blend, Recommanded Product: (Z)-Dodec-9-en-1-yl acetate, the publication is Journal of Chemical Ecology (1986), 12(6), 1417-29, database is CAplus and MEDLINE.

Sex gland extracts and washes of E. ambiguella contained 10-20 ng/female of the primary sex pheromone component Z-9-dodecenyl acetate (Z9-12:Ac), accompanied by a number of related compounds These are (E9-12:Ac), Z-9-dodecen-1-ol (Z9-12:OH), saturated acetates of 12, 16, 18, and 20 Cs, and traces of a doubly unsaturated acetate, tentatively identified as a 9,11-dodecadienyl acetate. Octadecyl acetate (18:Ac) predominated among the pheromone-related components, making up 1-2, occasionally 20-30-fold the amount of Z9-12:Ac. The same compounds were also found in field-collected females and in effluvia. Z-9-Undecenyl acetate, which is a male attractant on its own, was also found in a sample of female effluvia. A hierarchy in the ethol. function of the pheromone components was observed Z9-12:Ac was an attractant for E. ambiguella males. Dodecyl acetate (12:Ac) was not attractant on its own, but augmented male catch when added to the main attractant. Addition of 18:Ac augmented attraction only when both Z9-12:Ac and 12:Ac were present. Wind-tunnel tests demonstrated that 18:Ac also raised the disorientation threshold, as previously shown for 12:Ac. Other compounds, with the possible exception of addnl. saturated acetates, had either no effect on trap catch or, in the case of E9-12:Ac, Z9-12:OH, and E-9,11-dodecadienyl acetate, were inhibitory above a certain level. A blend of roughly equal parts of Z9-12:Ac, 12:Ac, and 18:Ac provided the best blend for E. ambiguella known to date.

Journal of Chemical Ecology 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 C14H26O2, Recommanded Product: (Z)-Dodec-9-en-1-yl acetate.

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

Bengtsson, M. published the artcileFluorine-substituted pheromone components affect the behavior of the grape berry moth, HPLC of Formula: 16974-11-1, the publication is Experientia (1990), 46(11-12), 1211-13, database is CAplus.

Partially fluorinated analogs of (Z)-9-dodecenyl acetate, the major pheromone component of the grape berry moth, Eupoecilia ambiguella, produced a variety of different behaviors in wind tunnel and field trapping experiments A difluoro analog was a potent attractant, the trifluoromethyl analog had little attractancy, and the pentafluoroethyl analog was a potent synergist for the natural pheromone.

Experientia 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 C14H26O2, HPLC of Formula: 16974-11-1.

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

Naksing, Thanyarat published the artcileBiological activities and potential of organic banana (Musa acuminata) peel extract in enhancing the immunity of giant freshwater prawn (Macrobrachium rosenbergii), SDS of cas: 517-23-7, the publication is Aquaculture Research (2022), 53(7), 2645-2656, database is CAplus.

This research aimed to optimize the extracting condition of banana peel (BP) and to investigate the effect of organic banana peel extract (BPE) on the immunity of giant freshwater prawn (Macrobrachium rosenbergii). The result demonstrated that the optimum extracting condition of organic BPE was 50% volume/volume of methanol at 100°C for 10 min. Under this condition, the maximum total phenolic content and extraction yield of 10.44 mg of gallic acid equivalent (GAE) per g of dry matter (mg GAE/g DM) and 33% w/v were obtained resp. The organic BPE could inhibit an aquatic pathogen Aeromonas hydrophila at the min. inhibitory concentration of 625μg/ disk. The main phytochems. in organic BPE showed two major biol. functions, which are antioxidant and antipathogenic activities. Subsequently, the effects of organic BPE on the immunity of M. rosenbergii were investigated. The results demonstrated that the organic BPE could increase immunity and phagocytic activity and decrease the susceptibility of M. rosenbergii. Moreover, the organic BPE could also increase total as well as differential hematocyte count, decrease the coagulation time and increase the total protein in serum of M. rosenbergii. The phagocytic activity of prawn was enhanced to 82.00% by using an organic BPE at 6μg/g. At the same time, the cumulative mortality was declined to lower 20% after 6 days of organic BPE injection. In conclusion, organic BPE can be a potential immunostimulant in giant freshwater prawn culture. The utilization of BP in aquaculture can further add the value of BP and reduce organic pollutants.

Aquaculture Research 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, SDS of cas: 517-23-7.

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

Smart, M. C. published the artcileImproved performance of lithium-ion cells with the use of fluorinated carbonate-based electrolytes, Safety of Ethyl (2,2,2-trifluoroethyl) carbonate, the publication is Journal of Power Sources (2003), 359-367, database is CAplus.

There is increasing interest in developing Li-ion electrolytes that possess enhanced safety characteristics, while still able to provide the desired stability and performance. Toward this end, efforts were focused on the development of Li-ion electrolytes which contain partially and fully fluorinated carbonate solvents. The advantage of using such solvents is that they possess the requisite stability demonstrated by the hydrocarbon-based carbonates, while also possessing more desirable phys. properties imparted by the presence of the F substituents, such as lower m.ps., increased stability toward oxidation, and favorable SEI film forming characteristics on C. The beneficial effect of electrolytes which contain the following fluorinated carbonate-based solvents:Me-2,2,2-trifluoroethyl carbonate (MTFEC),Et-2,2,2-trifluoroethyl carbonate (ETFEC), propyl-2,2,2-trifluoroethyl carbonate (PTFEC),Me-2,2,2,2′,2′,2′-hexafluoro-CHMe₂ carbonate (MHFPC),Et-2,2,2,2′,2′,2′-hexafluoroCHMe₂ carbonate (EHFPC), and di-2,2,2-trifluoroethyl carbonate (DTFEC) was demonstrated. These solvents were incorporated into multi-component ternary and quaternary carbonate-based electrolytes and evaluated in Li-C and C-LiNi_0.8Co_0.2O₂ cells, with Li reference electrodes. In addition to determining the charge/discharge behavior of these cells, Tafel polarization measurements, linear polarization measurements, and electrochem. impedance spectroscopy were used to further characterize the performance of these electrolytes, including the SEI formation characteristics and Li intercalation/de-intercalation kinetics.

Journal of Power Sources published new progress about 156783-96-9. 156783-96-9 belongs to esters-buliding-blocks, auxiliary class Trifluoromethylated Building Blocks, name is Ethyl (2,2,2-trifluoroethyl) carbonate, and the molecular formula is C9H9N3, Safety of Ethyl (2,2,2-trifluoroethyl) carbonate.

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