Category: esters-buliding-blocks

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. Reference of 611-13-2.

Goel, Reema;Reilly, Samantha M.;Valerio, Luis G. Jr. research published 《 A Computational Approach for Respiratory Hazard Identification of Flavor Chemicals in Tobacco Products》, the research content is summarized as follows. Flavor chems. contribute to the appeal and toxicity of tobacco products, including electronic nicotine delivery systems (ENDS). The assortment of flavor chems. available for use in tobacco products is extensive. In this study, a chem.-driven computational approach was used to evaluate flavor chems. based on intrinsic hazardous structures and reactivity of chems. A large library of 3012 unique flavor chems. was compiled from publicly available information. Next, information was computed and collated based on their (1) physicochem. properties, (2) Global Harmonization System (GHS) health hazard classification, (3) structural alerts linked to the chem.’s reactivity, instability, and/or toxicity, and (4) common substructure shared with FDA’s harmful and potentially harmful constituents (HPHCs) flavor chems. that are respiratory toxicants. Computational anal. of the constructed flavor library flagged 638 chems. with GHS classified respiratory health hazards, 1079 chems. with at least one structural alert, and 2297 chems. with substructural similarity to FDA’s established and proposed list of HPHCs. A subsequent anal. was performed on a subset of 173 chems. in the flavor library that are respiratory health hazards, contain structural alerts as well as flavor HPHC substructures. Four general toxicophore structures with an increased potential for respiratory toxicity were then identified. In summary, computational methods are efficient tools for hazard identification and understanding structure-toxicity relationship. With appropriate context of use and interpretation, in silico methods may provide scientific evidence to support toxicol. evaluations of chems. in or emitted from tobacco products.

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., Reference 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. 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. Computed Properties of 611-13-2.

Gomez, Juliana Pena;Velez, Juan Pablo Arrubla;Pinzon, Maria Alejandra;Arango, Jorge Augusto Montoya;Muriel, Andres Prieto research published 《 Chemical characterization and antiradical properties of pyroligneous acid from a preserved bamboo, Guadua angustifolia kunth》, the research content is summarized as follows. Pyroligneous acid (PA) was obtained by condensation of the vapors produced in the thermal decomposition of culms residues from Guadua angustifolia Kunth (G. angustifolia) cultivated in Colombia, with and without previous preservation treatment with borax salts. Chem. characterization by GC-MS showed that PA extracts has high content of phenolic compounds Mequinol, isocreosol, 4-ethylphenol, 4- ethyl-2-methoxyphenol, 3,5-dimethoxy-4-hydroxytoluene and 2,6-dimethoxyphenol were the most abundant substances, identified. The total phenolic content (TPC) and DPPH free radical scavenging activity, were investigated. TPC showed a concentration of 1.959 mg GA g^-1±0.010 and 3.844 mg GA g^-1±0.027 to PAC and PAS samples. These samples also exhibited high DPPH activity of 70.975%±0.921 and, 16.667%±0.298, resp. The chem. composition, TPC and DPPH results indicate that the PA extracts obtained from G. angustifolia may be used as a raw material in the food industry as natural preservative, in medicine as alternative to antibiotics and in agriculture as insect repellent and foliar fertilizer.

Computed Properties of 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

Polyesters are important plastics, with monomers linked by ester moieties. Phosphoesters form the backbone of DNA molecules. 87-13-8, formula is C10H16O5, Name is Diethyl 2-(ethoxymethylene)malonate.Nitrate esters, such as nitroglycerin, are known for their explosive properties. Safety of Diethyl 2-(ethoxymethylene)malonate.

Gornischeff, Artur;Kruve, Anneli;Rebane, Riin research published 《 Characterization of wines with liquid chromatography electrospray ionization mass spectrometry: Quantification of amino acids via ionization efficiency values》, the research content is summarized as follows. Quantification of anal. results for the suspect and non-targeted screening is essential for obtaining meaningful insight from the measurements. Ionization efficiency predictions is a possible approach to enable quantitation without standard substances. This is, however, especially challenging for the anal. carried out by combining the full scan mode either with fragmentation experiments in data-dependent or data-independent acquisition mode. Here we investigate the correlation of ionization efficiency values measured in full scan mode with the response factors measured in multiple reaction monitoring (MRM) mode for derivatized amino acids. We observe good correlation (R² of 0.80) for 6-Aminoquinolyl-N-hydroxysuccinimidyl carbamate (AQC) derivatized amino acids. This encourages the use of the measured ionization efficiency values to estimate amino acid concentrations in different beverages. We apply the measured ionization efficiency values for estimating the concentration of amino acids for measurements done both in full scan as well as in MRM mode in wines and beers. We show that the calculated concentrations are in very good correlation with measured values (R² of 0.71 to 1.00). The method possesses average trueness of 70.5% and shows an insignificant matrix effect.

87-13-8, Diethyl ethoxymethylenemalonate is a useful research compound. Its molecular formula is C10H16O5 and its molecular weight is 216.23 g/mol. The purity is usually 95%.

Diethyl ethoxymethylidenemalonate is a matrix effect reagent used in analytical chemistry. It is often used as a substrate for the cycloaddition process, which produces malondialdehyde and hydrochloric acid. The UV-absorption of the malondialdehyde can be measured to determine the concentration of the sample. Diethyl ethoxymethylidenemalonate is also used as a dna template in binding constants, where it binds with amines to form complexes that are then analyzed by light emission. It has been shown to have an inhibitory effect on gyrase and trifluoroacetic acid, both enzymes involved in DNA replication., Safety of Diethyl 2-(ethoxymethylene)malonate

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. Electric Literature of 611-13-2.

Graves, Brian M.;Johnson, Tyler J.;Nishida, Robert T.;Dias, Ryan P.;Savareear, Benjamin;Harynuk, James J.;Kazemimanesh, Mohsen;Olfert, Jason S.;Boies, Adam M. research published 《 Comprehensive characterization of mainstream marijuana and tobacco smoke》, the research content is summarized as follows. Recent increases in marijuana use and legalization without adequate knowledge of the risks necessitate the characterization of the billions of nanoparticles contained in each puff of smoke. Tobacco smoke offers a benchmark given that it has been extensively studied. Tobacco and marijuana smoke particles are quant. similar in volatility, shape, d. and number concentration, albeit with differences in size, total mass and chem. composition Particles from marijuana smoke are on average 29% larger in mobility diameter than particles from tobacco smoke and contain 3.4 times more total mass. New measurements of semivolatile fractions determined that >97% of the mass and volume of the particles from either smoke source are comprised of semivolatile compounds For tobacco smoke and marijuana smoke, resp., 4350 and 2575 different compounds are detected, of which 670 and 536 (231 in common) are tentatively identified, and of these, 173 and 110 different compounds (69 in common) are known to cause neg. health effects through carcinogenic, mutagenic, teratogenic, or other toxic mechanisms. This study demonstrates striking similarities between marijuana and tobacco smoke in terms of their phys. and chem. properties.

Electric Literature of 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

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. 87-13-8, formula is C10H16O5, Name is Diethyl 2-(ethoxymethylene)malonate. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. HPLC of Formula: 87-13-8.

Demekhin, Oleg D.;Burov, Oleg N.;Kletskii, Mikhail E.;Lisovin, Anton V.;Kurbatov, Sergey V.;Bereznyak, Elena A.;Trishina, Alena V. research published 《 New 13-vinyl derivatives of berberine: synthesis and characterization》, the research content is summarized as follows. The possibility of obtaining electroneutral substituted 13-vinylberberines I [R = H, CH₂C(O)CH₃; R¹ = dicyanomethyl, 1,3-dimethoxy-1,3-dioxopropan-2-yl, 2,4,6-trioxo-1,3-diazinan-5-yl, etc.] was demonstrated exptl. and via quantum-chem. DFT/B3LYP calculations in the 6-31++G(d,p) basis set. The introduction of pharmacophoric fragments conjugated through vinyl moiety opened new possibilities for structural modification of berberine, enabling pronounced changes in tropicity toward supramol. biol. structures. The newly synthesized 13-vinylberberines I were stable in their reduced form due to significant intramol. electron d. transfer from berberine ring system to the vinyl moiety bearing electron-withdrawing groups. It was demonstrated that berberine derivatives I may exist not only in ion pair form consisting of organic cation and inorganic anion, but also as zwitterionic structures featuring significant intramol. charge transfer. The obtained 13-vinylberberines I exhibited biol. activity against the highly pathogenic Vibrio cholerae.

87-13-8, Diethyl ethoxymethylenemalonate is a useful research compound. Its molecular formula is C10H16O5 and its molecular weight is 216.23 g/mol. The purity is usually 95%.

Diethyl ethoxymethylidenemalonate is a matrix effect reagent used in analytical chemistry. It is often used as a substrate for the cycloaddition process, which produces malondialdehyde and hydrochloric acid. The UV-absorption of the malondialdehyde can be measured to determine the concentration of the sample. Diethyl ethoxymethylidenemalonate is also used as a dna template in binding constants, where it binds with amines to form complexes that are then analyzed by light emission. It has been shown to have an inhibitory effect on gyrase and trifluoroacetic acid, both enzymes involved in DNA replication., HPLC of Formula: 87-13-8

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. 2495-37-6, formula is C11H12O2, Name is Benzyl methacrylate. 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. COA of Formula: C11H12O2.

Demirelli, Kadir;Abubakar, Abdullahi Musa;Ahmad, Abdulhaleem Abdulkareem;Bagci, Eyup research published 《 The effect of end group and graphene on dielectric properties and thermal degradation of poly(benzyl methacrylate) prepared by ATRP method》, the research content is summarized as follows. The polymer composites were prepared based on the incorporation of graphene particles in various ratios to lacton ended poly(benzyl methacrylate) (LE-PBMA). The thermal caharacterization of composites was performed by DSC and TGA techniques. The dielec. constant (ε′), the dielec. loss factor (ε′′) and the ac and dc conductivities (σ_ac and σ_dc) were measured using an impedance analyzer in a frequency range from 100 to 2 kHz. The thermal degradation up to 500 °C under vacuum of LE-PBMA loaded with 12 w% graphene was investigated. Thermal degradation was carried out to known if the addition of graphene causes any changes in the degradation processes of LE-PBMA/graphene 12 w%, and it was compared to that of pure LE-PBMA prepared by ATRP (atom transfer radical polymerization) method. When compared with those of PBMA prepared by free radical polymerization, the trend of depolymerization for LE-PBMA in the presence of graphene in the composite system decreased from 78% (by mol) up to 37% (by mol). The FT-IR, ¹H- ¹³C-NMR and GC-MS data showed that depolymerization corresponding to monomer (benzyl methacrylate) was the most important product trapped at CRF (cold ring fraction) in the thermal degradation of composite.

COA of Formula: C11H12O2, Benzyl methacrylate, also known as Benzyl methacrylate, is a useful research compound. Its molecular formula is C11H12O2 and its molecular weight is 176.21 g/mol. The purity is usually 95%.
Benzyl methacrylate is a chemical compound that belongs to the group of benzyl compounds. It has a copolymer structure with methyl ethyl methacrylate (MEMA) and hydroxyl groups. Benzyl methacrylate is produced by polymerization of benzyl chloride with allyl carbonate in the presence of radiation, forming a polymeric matrix. The morphology of this copolymer depends on the length of the benzyl chains and the concentration of MEMA., 2495-37-6.

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. Electric Literature of 99769-19-4.

Demonti, Luca;Saffon-Merceron, Nathalie;Mezailles, Nicolas;Nebra, Noel research published 《 Cross-Coupling through Ag(I)/Ag(III) Redox Manifold》, the research content is summarized as follows. Trifluoromethyl argentates(III) undergo reductive elimination with arylboronic acids, yielding trifluoromethylarenes. In ample variety of transformations, the presence of silver as an additive or co-catalyst is believed to be innocuous for the efficiency of the operating metal catalyst. Even though Ag additives are required often as coupling partners, oxidants or halide scavengers, its role as a catalytically competent species is widely neglected in cross-coupling reactions. Most likely, this is due to the erroneously assumed incapacity of Ag to undergo 2e^– redox steps. Definite proof is herein provided for the required elementary steps to accomplish the oxidative trifluoromethylation of arenes through Ag^I/Ag^III redox catalysis (i. e. CEL coupling), namely: (i) easy Ag^I/Ag^III 2e^– oxidation mediated by air; (ii) bpy/phen ligation to Ag^III; (iii) boron-to-Ag^III aryl transfer; and (iv) ulterior reductive elimination of benzotrifluorides from an [aryl-Ag^III-CF₃] fragment. More precisely, an ultimate entry and full characterization of organosilver(III) compounds [K]⁺[Ag^III(CF₃)₄]^– (K-1), [(bpy)Ag^III(CF₃)₃] (2) and [(phen)Ag^III(CF₃)₃] (3), is described. The utility of 3 in cross-coupling has been showcased unambiguously, and a large variety of arylboron compounds was trifluoromethylated via [Ag^III(aryl)(CF₃)₃]^– intermediates. This work breaks with old stereotypes and misconceptions regarding the inability of Ag to undergo cross-coupling by itself.

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., Electric Literature of 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, 611-13-2, formula is C6H6O3, Name is Methyl furan-2-carboxylate. as in the substitution reaction of a carboxylic acid and an alcohol. Related Products of 611-13-2.

Desai, Deepak S.;Yadav, Ganapati D. research published 《 Solvent-free oxidative esterification of furfural to 2-methyl furoate using novel copper-exchanged tungstophosphoric acid supported on montmorillonite K-10 catalyst》, the research content is summarized as follows. The valorization of bio-based chems. using green processes plays a vital role in the up-gradation of biofuels that are useful to reduce the demand for fossil feedstock. Furfural is a promising renewable biomass-based platform chem., which can be catalyically transformed into many value-added chems. Oxidative esterification of furfural produces 2-Me furoate, which is used as flavor and fragrance in fine chem. industries. There lies a challenge to find a cheaper and efficient catalyst for one-pot oxidative esterification of furfural. Supported heteropolyacids (HPAs) are useful for many biomass transformation reactions owing to their strong Bronsted acidity as well as high surface area, which both help promote catalytic surface reaction. In the present work, we have synthesized Cu exchanged tungstophosphoric acid (TPA) with different supports, viz. SiO₂, ZrO₂, and montmorillonite K-10 clay (K10) which were prepared by incipient wetness impregnation. Oxidative esterification of furfural with Me alc. was investigated using the aforesaid catalysts and tert-Bu hydroperoxide (TBHP) as an oxidant. 20% weight/weight Cu substituted TPA (abbreviated as Cu-TK10) catalyst is green, stable, active, selective, reusable, and cheaper. It was observed that the higher acidic strength and good surface area are responsible for oxidative esterification of furfural and Me alc. with higher selectivity. In this work, 91% conversion with 100% selectivity was achieved in 5 h at 120°C using 1:3 molar ratio of furfural and TBHP with a catalyst loading of 0.01 g/cm³. The synthesized catalysts were analyzed by various characterization techniques such as SEM, XRD, FT-IR, BET surface area analyzer, and NH₃-TPD, before and after use. This is an interesting example of valorization of furfural.

Related Products of 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. 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.

Diana-Rivero, Raquel;Halsvik, Beate;Garcia Tellado, Fernando;Tejedor, David research published 《 Short and Modular Synthesis of Substituted 2-Aminopyrroles》, the research content is summarized as follows. We herein describe a simple and metal-free domino methodol. to synthesize 2-aminopyrroles from alkynyl vinyl hydrazides. The domino reaction involves a novel propargylic 3,4-diaza-Cope rearrangement and a tandem isomerization/5-exo-dig N-cyclization reaction. By using this approach, a number of 2-aminopyrroles with diverse substituents have been prepared

Recommanded Product: Di-tert-butyl diazene-1,2-dicarboxylate, 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