Month: October 2022

Glycerides are fatty acid esters of glycerol; they are important in biology, being one of the main classes of lipids and comprising the bulk of animal fats and vegetable oils. 611-13-2, formula is C6H6O3, Name is Methyl furan-2-carboxylate. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Name: Methyl furan-2-carboxylate.

Xie, Chao;Lin, Longfei;Huang, Liang;Wang, Zixin;Jiang, Zhiwei;Zhang, Zehui;Han, Buxing research published 《 Zn-N_x sites on N-doped carbon for aerobic oxidative cleavage and esterification of C(CO)-C bonds》, the research content is summarized as follows. Zn/NC-X catalysts, in which Zn²⁺ coordinated with N species on microporous N-doped carbon (NC) and X denoted the pyrolysis temperature, could effectively catalyze aerobic oxidative cleavage of C(CO)-C bonds and quant. converted acetophenone to Me benzoate with a yield of 99% at 100°C was reported. The Zn/NC-950 could be applied for a wide scope of acetophenone derivatives as well as more challenging alkyl ketones. Detail mechanistic investigations revealed that the catalytic performance of Zn/NC-950 could be attributed to the coordination between Zn²⁺ and N species to change the electronic state of the metal, synergetic effect of the Zn single sites with their surrounding N atoms, as well as the microporous structure with the high surface area and structural defects of the NC.

Name: Methyl furan-2-carboxylate, Methyl 2-furoate has been identified as one of the volatile flavor compounds in tequila, okra, berrycactus and black currant juice.
Methyl 2-furoate, also known as fema 2703 or methyl pyromucate, belongs to the class of organic compounds known as furoic acid esters. These are ester derivatives of furoic acid. Methyl 2-furoate is soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Within the cell, methyl 2-furoate is primarily located in the cytoplasm. Methyl 2-furoate is a sweet, fruity, and fungal tasting compound that can be found in a number of food items such as cocoa and cocoa products, potato, tamarind, and fruits. This makes methyl 2-furoate a potential biomarker for the consumption of these food products.
Methyl 2-furoate is a reactive compound that belongs to the family of sesquiterpene lactones. It has been shown to have phosphotungstic acid and hydrochloric acid reactivity, as well as nitrous and water vapor sensitivity. Methyl 2-furoate also reacts with radiation, which can be used for structural analysis. The compound is an intermediate in the synthesis of pluronic p123, which is used in fabricating biomedical devices. Methyl 2-furoate has been shown to have anti-inflammatory properties through its inhibitory effect on prostaglandin synthesis., 611-13-2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ester is a chemical compound derived from an oxoacid (organic or inorganic) in which at least one –OH hydroxyl group is replaced by an –O– alkyl (alkoxy) group, 611-13-2, formula is C6H6O3, Name is Methyl furan-2-carboxylate. as in the substitution reaction of a carboxylic acid and an alcohol. SDS of cas: 611-13-2.

Xiao, Jing;Guo, Fengzhe;Li, Yinfeng;Li, Fangshao;Li, Qiang;Tang, Zi-Long research published 《 Iodine Promoted Conversion of Esters to Nitriles and Ketones under Metal-Free Conditions》, the research content is summarized as follows. In the present study, novel strategy to prepare valuable nitriles and ketones through the conversion of esters under metal-free conditions were reported. By using the I₂/PCl₃ system, various substrates including aliphatic and aromatic esters reacted with acetonitrile and arenes to afford the desired products in good to excellent yields. This method was compatible with a number of functional groups and provided a simple and practical approach for the synthesis of nitrile compounds and aryl ketones.

SDS of cas: 611-13-2, Methyl 2-furoate has been identified as one of the volatile flavor compounds in tequila, okra, berrycactus and black currant juice.
Methyl 2-furoate, also known as fema 2703 or methyl pyromucate, belongs to the class of organic compounds known as furoic acid esters. These are ester derivatives of furoic acid. Methyl 2-furoate is soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Within the cell, methyl 2-furoate is primarily located in the cytoplasm. Methyl 2-furoate is a sweet, fruity, and fungal tasting compound that can be found in a number of food items such as cocoa and cocoa products, potato, tamarind, and fruits. This makes methyl 2-furoate a potential biomarker for the consumption of these food products.
Methyl 2-furoate is a reactive compound that belongs to the family of sesquiterpene lactones. It has been shown to have phosphotungstic acid and hydrochloric acid reactivity, as well as nitrous and water vapor sensitivity. Methyl 2-furoate also reacts with radiation, which can be used for structural analysis. The compound is an intermediate in the synthesis of pluronic p123, which is used in fabricating biomedical devices. Methyl 2-furoate has been shown to have anti-inflammatory properties through its inhibitory effect on prostaglandin synthesis., 611-13-2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 611-13-2, formula is C6H6O3, Name is Methyl furan-2-carboxylate. They perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Related Products of 611-13-2.

Xiao, Fang;Lin, Jin-Hong;Hao, Fei;Zheng, Xing;Guo, Yu;Xiao, Ji-Chang research published 《 Visible light mediated C-H trifluoromethylation of (hetero)arenes》, the research content is summarized as follows. A protocol for visible light mediated C-H trifluoromethylation of unactivated (hetero)arenes under blue LED irradiation has been developed. The reaction enables the rapid construction of a range of CF₃-containing (hetero)arenes in moderate to high yields from the readily accessible trifluoromethylsulfonyl-pyridinium salt (TFSP). This protocol is also suitable for nitrogen-containing aromatic heterocycles, which are potentially useful in medicinal chem.

611-13-2, Methyl 2-furoate has been identified as one of the volatile flavor compounds in tequila, okra, berrycactus and black currant juice.
Methyl 2-furoate, also known as fema 2703 or methyl pyromucate, belongs to the class of organic compounds known as furoic acid esters. These are ester derivatives of furoic acid. Methyl 2-furoate is soluble (in water) and an extremely weak basic (essentially neutral) compound (based on its pKa). Within the cell, methyl 2-furoate is primarily located in the cytoplasm. Methyl 2-furoate is a sweet, fruity, and fungal tasting compound that can be found in a number of food items such as cocoa and cocoa products, potato, tamarind, and fruits. This makes methyl 2-furoate a potential biomarker for the consumption of these food products.
Methyl 2-furoate is a reactive compound that belongs to the family of sesquiterpene lactones. It has been shown to have phosphotungstic acid and hydrochloric acid reactivity, as well as nitrous and water vapor sensitivity. Methyl 2-furoate also reacts with radiation, which can be used for structural analysis. The compound is an intermediate in the synthesis of pluronic p123, which is used in fabricating biomedical devices. Methyl 2-furoate has been shown to have anti-inflammatory properties through its inhibitory effect on prostaglandin synthesis., Related Products of 611-13-2

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate. They perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Recommanded Product: Di-tert-butyl diazene-1,2-dicarboxylate.

Xia, Zi-Lei;Zheng, Chao;Xu, Ren-Qi;You, Shu-Li research published 《 Chiral phosphoric acid catalyzed aminative dearomatization of α-naphthols/Michael addition sequence》, the research content is summarized as follows. Asym. dearomatization reactions have recently emerged as a powerful tool for the rapid build-up of the mol. complexity. Chiral three-dimensional polycyclic mols. bearing contiguous stereogenic centers can be synthesized from readily available planar aromatic feedstocks. Herein, an intermol. asym. dearomatization reaction of α-naphthols I (R = 6-OMe, 7-Me, 8-CN, etc.) bearing a tethered nucleophile at the C4 position of the naphthol ring is reported using a chiral phosphoric acid as catalyst. The reaction proceeds via a highly chemo- and regioselective aminative dearomatization/Michael addition sequence, affording a wide array of functionalized cyclic ketones e.g II (Nu = O, NTs, NCO₂Me, etc.) in good yields (up to 93%) with excellent enantioselectivity (up to >99% ee). The catalyst loading can be reduced to 0.1 mol%. Preliminary mechanistic investigations identify that the enantioselectivity is established in the dearomatization step, while the Michael addition is the rate-limiting step. A working model accounting for the origin of the stereochem. is proposed based on DFT calculations

870-50-8, Di-tert-butyl azodicarboxylate, also known as Di-tert-butyl azodicarboxylate, is a useful research compound. Its molecular formula is C₁₀H₁₈N₂O₄ and its molecular weight is 230.26 g/mol. The purity is usually 95%.
Di-tert-butyl azodicarboxylate is a reagent used in the electrophilic amination of β-keto esters catalyzed by an axially chiral guanidine. Building block in an enantioselective synthesis of 3,6-dihyropyridazines employing organocatalysts such a L-proline or (S)-2-pyrrolidinyl tetrazole. Utilized in the asymmetric Friedel-Crafts amination via a chiral organocatalyst.
Di-tert-butyl azodicarboxylate is a reagent used in the preparation of acyl hydrazinedicarboxylates via photoorganocatalytic hydroacylation of dialkyl azodicarboxylates with aldehydes in presence of phenylglyoxylic acid as photocatalyst., Recommanded Product: Di-tert-butyl diazene-1,2-dicarboxylate

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Polyesters are important plastics, with monomers linked by ester moieties. Phosphoesters form the backbone of DNA molecules. 99769-19-4, formula is C8H9BO4, Name is 3-(Methoxycarbonyl)phenylboronic acid.Nitrate esters, such as nitroglycerin, are known for their explosive properties. Formula: C8H9BO4.

Xia, Hongyu;Wang, Ganghu;Zhao, Dongbo;Zhu, Chunyin research published 《 Visible Light Induced Aerobic Coupling of Arylboronic Acids Promoted by Hydrazone》, the research content is summarized as follows. A visible-light-induced oxidative coupling of arylboronic acids was developed for the synthesis of biaryls Ar¹Ar² [Ar¹ = Ar² = Ph, 4-MeC₆H₄, 4-FC₆H₄, etc.; Ar¹ = 4-BrC₆H₄, 4-MeC₆H₄, 4-FC₆H₄, etc.; Ar₂ = 4-H(O)CC₆H₄, 3-MeOC₆H₄, 4-AcC₆H₄, etc.]. The reaction that employed polydentate hydrazones as the bifunctional catalyst works smoothly under room temperature It was compatible with a wide range of functional group. The study of UV-Vis spectrum indicated that hydrazone and its complex with CuI show major absorptions upon visible-light, which secures the dual role of hydrazone as both ligand and photocatalyst in this reaction. Hence, the reaction was proposed to involve stepwise transmetallations, photo-induced oxidations, and reductive elimination.

Formula: C8H9BO4, 3-Methoxycarbonylphenylboronic acid is a useful research compound. Its molecular formula is C8H9BO4 and its molecular weight is 179.97 g/mol. The purity is usually 95%.

3-Methoxycarbonylphenylboronic acid is a reactanct that has been involved in a variety of applications. For instance, it has been used in Suzuki-Miyaura cross-coupling, Iterative cross-coupling of boronate building blocks, cross-coupling with aryl/ alkenyl sulfonates, synthesis of symmetrical biaryls via CuCl catalyzed homocoupling, trifluoromethylation, and cyanation just to name a few of its many uses.

3-Methoxycarbonylphenylboronic acid is a boronate ligand that has been shown to have an interaction with the nitrogen atoms in amines. This compound is used for the Suzuki coupling reaction, which is a chemical reaction between an organoboron compound and an organic electrophile. 3-Methoxycarbonylphenylboronic acid has a helical structure that can be seen by FTIR spectroscopy and it has potent inhibitory activity., 99769-19-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ester is a chemical compound derived from an oxoacid (organic or inorganic) in which at least one –OH hydroxyl group is replaced by an –O– alkyl (alkoxy) group, 99769-19-4, formula is C8H9BO4, Name is 3-(Methoxycarbonyl)phenylboronic acid. as in the substitution reaction of a carboxylic acid and an alcohol. Electric Literature of 99769-19-4.

Xi, Yang;Huang, Wenyi;Wang, Chenchen;Ding, Haojie;Xia, Tingting;Wu, Licheng;Fang, Ke;Qu, Jingping;Chen, Yifeng research published 《 Catalytic Asymmetric Diarylation of Internal Acyclic Styrenes and Enamides》, the research content is summarized as follows. Enantioselective transformations of olefins are among the most important strategies for the asym. synthesis of organic compounds Chemo-, diastereo-, and stereoselective control of reactions with internal acyclic alkenes for the construction of functionalized acyclic alkanes still remain a persistent challenge. Here, authors report a palladium-catalyzed asym. regiodivergent Heck-type diarylation of internal acyclic alkenes. The 1,2-diarylation of two accessible acyclic alkenes, cinnamyl carbamates and enamides with diazonium salts and aromatic boronic acids, furnishes products containing vicinal stereogenic centers via the stereospecific formation of carbonyl coordination-assisted transient palladacycles. Moreover, the asym. migratory diarylation of enamides enables the formation of incontiguous stereocenters by an interrupted diastereoselective 1,3-chain-walking process. This protocol streamlines access to highly functionalized multisubstituted enantioenriched carbamates and amine derivatives which are embedded in the key biol. active motifs.

Electric Literature of 99769-19-4, 3-Methoxycarbonylphenylboronic acid is a useful research compound. Its molecular formula is C8H9BO4 and its molecular weight is 179.97 g/mol. The purity is usually 95%.

3-Methoxycarbonylphenylboronic acid is a reactanct that has been involved in a variety of applications. For instance, it has been used in Suzuki-Miyaura cross-coupling, Iterative cross-coupling of boronate building blocks, cross-coupling with aryl/ alkenyl sulfonates, synthesis of symmetrical biaryls via CuCl catalyzed homocoupling, trifluoromethylation, and cyanation just to name a few of its many uses.

3-Methoxycarbonylphenylboronic acid is a boronate ligand that has been shown to have an interaction with the nitrogen atoms in amines. This compound is used for the Suzuki coupling reaction, which is a chemical reaction between an organoboron compound and an organic electrophile. 3-Methoxycarbonylphenylboronic acid has a helical structure that can be seen by FTIR spectroscopy and it has potent inhibitory activity., 99769-19-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ester is a chemical compound derived from an oxoacid (organic or inorganic) in which at least one –OH hydroxyl group is replaced by an –O– alkyl (alkoxy) group, 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate. as in the substitution reaction of a carboxylic acid and an alcohol. Quality Control of 870-50-8.

Wu, Zi-Qiao;Zhang, Mei-Rong;Zhou Han-Chen, Xiao-Yu;Yang, Jia-Le;Zhang, Yu-Heng;Li, Wen-Hai research published 《 Catalyst-free [3+2] cycloaddition of azodicarbonyls and o-hydroxyaryl azomethine ylides on water》, the research content is summarized as follows. An environment-friendly methodol. for the synthesis of 1,2,4-triazoline derivatives on water was described. This method provided an environmental and useful strategy for catalyst-free synthesis of 1,2,4-triazolines derivatives The gram scale reaction and one-pot reaction were also performed to ensure the scalability and high efficiency of the reaction.

870-50-8, Di-tert-butyl azodicarboxylate, also known as Di-tert-butyl azodicarboxylate, is a useful research compound. Its molecular formula is C₁₀H₁₈N₂O₄ and its molecular weight is 230.26 g/mol. The purity is usually 95%.
Di-tert-butyl azodicarboxylate is a reagent used in the electrophilic amination of β-keto esters catalyzed by an axially chiral guanidine. Building block in an enantioselective synthesis of 3,6-dihyropyridazines employing organocatalysts such a L-proline or (S)-2-pyrrolidinyl tetrazole. Utilized in the asymmetric Friedel-Crafts amination via a chiral organocatalyst.
Di-tert-butyl azodicarboxylate is a reagent used in the preparation of acyl hydrazinedicarboxylates via photoorganocatalytic hydroacylation of dialkyl azodicarboxylates with aldehydes in presence of phenylglyoxylic acid as photocatalyst., Quality Control of 870-50-8

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Polyesters are important plastics, with monomers linked by ester moieties. Phosphoesters form the backbone of DNA molecules. 99769-19-4, formula is C8H9BO4, Name is 3-(Methoxycarbonyl)phenylboronic acid.Nitrate esters, such as nitroglycerin, are known for their explosive properties. Related Products of 99769-19-4.

Wu, Dunqi;Fan, Wenzheng;Wu, Lianqian;Chen, Pinhong;Liu, Guosheng research published 《 Copper-Catalyzed Enantioselective Radical Chlorination of Alkenes》, the research content is summarized as follows. In this report, authors reviewed a copper-catalyzed asym. atom transfer radical addition (ATRA) reaction, which remains a great challenge since the discovery of racemic ATRA in the 1940s. This enantioselective radical chlorination of acrylamides was developed, where three reagents, including Togni-I and TMSCl, PhICF₃Cl, and CX₃SO₂Cl, were employed as the radical sources and chlorine source, affording a series of chlorinated carbon-centered quaternary compounds in good yields with excellent enantioselectivity. Notably, the well-designed bulky chiral ligand plays a key role in the successful enantioselective radical chlorination process.

99769-19-4, 3-Methoxycarbonylphenylboronic acid is a useful research compound. Its molecular formula is C8H9BO4 and its molecular weight is 179.97 g/mol. The purity is usually 95%.

3-Methoxycarbonylphenylboronic acid is a reactanct that has been involved in a variety of applications. For instance, it has been used in Suzuki-Miyaura cross-coupling, Iterative cross-coupling of boronate building blocks, cross-coupling with aryl/ alkenyl sulfonates, synthesis of symmetrical biaryls via CuCl catalyzed homocoupling, trifluoromethylation, and cyanation just to name a few of its many uses.

3-Methoxycarbonylphenylboronic acid is a boronate ligand that has been shown to have an interaction with the nitrogen atoms in amines. This compound is used for the Suzuki coupling reaction, which is a chemical reaction between an organoboron compound and an organic electrophile. 3-Methoxycarbonylphenylboronic acid has a helical structure that can be seen by FTIR spectroscopy and it has potent inhibitory activity., Related Products of 99769-19-4

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. 99769-19-4, formula is C8H9BO4, Name is 3-(Methoxycarbonyl)phenylboronic acid. They perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Recommanded Product: 3-(Methoxycarbonyl)phenylboronic acid.

Wu, Chuanhai;Tu, Yan-bei;Li, Ziyuan;Li, Yan-fang research published 《 Highly selective carbamate-based butyrylcholinesterase inhibitors derived from a naturally occurring pyranoisoflavone》, the research content is summarized as follows. This current study described the design and synthesis of a series of derivatives based on a natural pyranoisaflavone, which was obtained from the seeds of Millettia pachycarpa and displayed attractive BChE inhibition and high selectivity in our previous study. The inhibitory potential of all derivatives against two cholinesterases was evaluated. Only a few compounds demonstrated AChE inhibitory activity at the tested concentrations, while 26 compounds showed significant inhibition on BChE (the IC₅₀ values varied from 9.34 μM to 0.093 μM), most of them presented promising selectivity to ward BChE. Prediction of ADME properties for 7 most active compounds was performed. Among them, 9g (IC₅₀ = 222 nM) and 9h (IC₅₀ = 93 nM) were found to be the most potent BChE inhibitors with excellent selectivity over AChE (SI ratio = 1339 and 836, resp.). The kinetic anal. demonstrated both of them acted as mixed-type BChE inhibitors, while the mol. docking results indicated that they interacted with both residues in the catalytic active site. A cytotoxicity test on PC12 cells showed that both 9g and 9h had a therapeutic safety range similar to tacrine. Overall, the results indicate that 9h could be a good candidate of BChE inhibitors.

Recommanded Product: 3-(Methoxycarbonyl)phenylboronic acid, 3-Methoxycarbonylphenylboronic acid is a useful research compound. Its molecular formula is C8H9BO4 and its molecular weight is 179.97 g/mol. The purity is usually 95%.

3-Methoxycarbonylphenylboronic acid is a reactanct that has been involved in a variety of applications. For instance, it has been used in Suzuki-Miyaura cross-coupling, Iterative cross-coupling of boronate building blocks, cross-coupling with aryl/ alkenyl sulfonates, synthesis of symmetrical biaryls via CuCl catalyzed homocoupling, trifluoromethylation, and cyanation just to name a few of its many uses.

3-Methoxycarbonylphenylboronic acid is a boronate ligand that has been shown to have an interaction with the nitrogen atoms in amines. This compound is used for the Suzuki coupling reaction, which is a chemical reaction between an organoboron compound and an organic electrophile. 3-Methoxycarbonylphenylboronic acid has a helical structure that can be seen by FTIR spectroscopy and it has potent inhibitory activity., 99769-19-4.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Ester is a chemical compound derived from an oxoacid (organic or inorganic) in which at least one –OH hydroxyl group is replaced by an –O– alkyl (alkoxy) group, 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate. as in the substitution reaction of a carboxylic acid and an alcohol. Category: esters-buliding-blocks.

Wu, Bin;Wang, Jianing;Liu, Xingchen;Zhu, Rong research published 《 Bicyclo[2.2.0]hexene derivatives as a proaromatic platform for group transfer and chemical sensing》, the research content is summarized as follows. Here the design, preparation, synthetic utility, and sensing application of a class of proarom. structures, namely bicyclo[2.2.0]hexene (BCHs) derivatives I [R = allyl, i-Pr, Bn, etc.] was reported. Building on a valence isomerism concept, they featured modular and easy synthesis as well as high thermal stability, and could be oxidatively activated under mild conditions. New alkyl transfer reactions using BCHs as a radical donor were developed to showcase the utility of their proaromaticity. Moreover, the redox-triggered valence isomerization of a quinoline-derived BCH led to colorimetric and fluorescent responses toward vapors of electrophilic reagents in solution and solid phase, resp. This optical response was showed to involved a 1,3-cyclohexadiene structure that possesses an intramol. charge transfer excited state with interesting aggregation induced emission (AIE) character. Thus, the potential of BCHs was demonstrated as a versatile platform for the development of new reagents and functional materials.

Category: esters-buliding-blocks, Di-tert-butyl azodicarboxylate, also known as Di-tert-butyl azodicarboxylate, is a useful research compound. Its molecular formula is C₁₀H₁₈N₂O₄ and its molecular weight is 230.26 g/mol. The purity is usually 95%.
Di-tert-butyl azodicarboxylate is a reagent used in the electrophilic amination of β-keto esters catalyzed by an axially chiral guanidine. Building block in an enantioselective synthesis of 3,6-dihyropyridazines employing organocatalysts such a L-proline or (S)-2-pyrrolidinyl tetrazole. Utilized in the asymmetric Friedel-Crafts amination via a chiral organocatalyst.
Di-tert-butyl azodicarboxylate is a reagent used in the preparation of acyl hydrazinedicarboxylates via photoorganocatalytic hydroacylation of dialkyl azodicarboxylates with aldehydes in presence of phenylglyoxylic acid as photocatalyst., 870-50-8.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics