Tag: M.W=200-250

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, 87-13-8, formula is C10H16O5, Name is Diethyl 2-(ethoxymethylene)malonate. as in the substitution reaction of a carboxylic acid and an alcohol. Synthetic Route of 87-13-8.

Liu, Shitao;Li, Jisen;Lin, Junjie;Liu, Fujun;Liu, Teng;Huang, Chao research published 《 Substituent-controlled chemoselective synthesis of multi-substituted pyridones via a one-pot three-component cascade reaction》, the research content is summarized as follows. An efficient and concise one-pot strategy for the synthesis of multisubstituted pyridones via a one-pot three-component cascade reaction catalyzed by Cs₂CO₃ under solvent-free conditions was developed. The substituent-controlled chemoselective cycloaddition process involved steps including a Michael addition/ethanol elimination/intermol. cyclization sequence utilizing anilines, di-Et acetylenedicarboxylate, and di-Et ethoxymethylenemalonate. The synthesis various 2-pyridone and 4-pyridone species (41 examples) were obtained in good to excellent yields.

Synthetic Route of 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., 87-13-8.

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. 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. SDS of cas: 870-50-8.

Liu, Wei;Jiang, Qianwen;Yang, Xiaoyu research published 《 A Versatile Method for Kinetic Resolution of Protecting-Group-Free BINAMs and NOBINs through Chiral Phosphoric Acid Catalyzed Triazane Formation》, the research content is summarized as follows. A versatile kinetic resolution of protecting-group-free BINAMs and NOBINs has been realized through chiral phosphoric acid catalyzed triazane formation with azodicarboxylates. A series of mono-N-protected and unprotected BINAMs, di-Ph diamines and NOBIN derivatives could be kinetically resolved with excellent performances (with s factor up to 420). The gram-scale reactions and facile derivatizations of the chiral products demonstrate the potential of these methods in the asym. synthesis of chiral catalysts and ligands.

SDS of cas: 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., 870-50-8.

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. 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. SDS of cas: 870-50-8.

Le Vaillant, Franck;Mateos Calbet, Ana;Gonzalez-Pelayo, Silvia;Reijerse, Edward J.;Ni, Shengyang;Busch, Julia;Cornella, Josep research published 《 Catalytic synthesis of phenols with nitrous oxide》, the research content is summarized as follows. Here, an insertion of N₂O into a Ni-C bond under mild conditions (room temperature, 1.5-2 bar N₂O) for delivering valuable phenols ROH (R = Ph, 4-cyanophenyl, 1-oxo-2,3-dihydro-1H-inden-4-yl, quinolin-6-yl, etc.) and releasing benign N₂ was reported. This fundamentally distinct organometallic C-O bond-forming step differs from the current strategies based on reductive elimination and enables an alternative catalytic approach for the conversion of aryl halides RX (X = I, Br) to phenols. The process was rendered catalytic by means of a bipyridine-based ligands for the Ni center. The method is robust, mild and highly selective, and able to accommodate base-sensitive functionalities as well as permitting phenol synthesis from densely functionalized aryl halides. Although this protocol does not provide a solution to the mitigation of N₂O emissions, it represents a reactivity blueprint for the mild revalorization of abundant N₂O as an O source.

SDS of cas: 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., 870-50-8.

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. 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. Application of C10H18N2O4.

Lei, Jian;Gao, Huaxin;Huang, Miaoling;Liu, Xiao;Mao, Yangfan;Xie, Xiaolan research published 《 Copper-catalyzed stereoselective alkylhydrazination of alkynes》, the research content is summarized as follows. An unprecedented Cu-catalyzed stereoselective alkylhydrazination reaction involving terminal alkynes, azocarboxylic esters as a nitrogen source, and di-Me 2,2′-azobis(2-methylpropionate) and its analogs as a carbon source is presented here. This protocol provides direct access to tri-substituted (E)-alkenyl-hydrazines with good regio- and stereoselectivity under mild conditions. The transformation proceeds without an external oxidant or additives and shows good functional group tolerance. The alkenylhydrazine products could be easily converted into valuable 1,4-dicarbonyl and allyl carboxylic derivatives

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., Application of C10H18N2O4

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. 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Formula: C10H18N2O4.

Li, Chenghao;Zuo, Wei-Fang;Zhou, Jin;Zhou, Wu-Jingyun;Wang, Meng;Li, Xiang;Zhan, Gu;Huang, Wei research published 《 Catalytic asymmetric synthesis of 3,4′-indole-pyrazole derivatives featuring axially chiral bis-pentatomic heteroaryls》, the research content is summarized as follows. In this work, the catalytic asym. construction of axially chiral 3,4′-indole-pyrazole derivatives I (R¹ = H, 5-OMe, 5-F, 6-Br, 6-F, 7-Me; R² = Me, Ph; R³ = Ph, 4-fluorophenyl, 3-methylphenyl, 3-fluorophenyl, 3-chlorophenyl; R⁴ = Ph, 4-methylphenyl, 3-fluorophenyl, etc.; R⁵ = Me, Et) was described. A chiral axis and a quaternary stereocenter could be synergistically installed through a single stereodetermining C-C bond-forming step of the chiral phosphoric acid-catalyzed Mannich reaction. High diastereoselectivities and enantioselectivities could be obtained in most cases. The 5-pyrazolyl acetate moiety in the substrates II proved crucial for improving the reactivity. The new axially chiral 3,4′-indole-pyrazole system I exhibited good configurational stability.

Formula: C10H18N2O4, 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

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. Reference of 87-13-8.

Li, Qiu;Yao, Benqiang;Zhao, Shiting;Lu, Zhou;Zhang, Yan;Xiang, Qiuping;Wu, Xishan;Yu, Haonan;Zhang, Cheng;Li, Junhua;Zhuang, Xiaoxi;Wu, Donghai;Li, Yong;Xu, Yong research published 《 Discovery of a Highly Selective and H435R-Sensitive Thyroid Hormone Receptor β Agonist》, the research content is summarized as follows. The design and development of agonists selectively targeting thyroid hormone receptor β (TRβ) and TRβ mutants remain challenging tasks. In this study, we first adopted the strategy of breaking the “His-Phe switch” to solve two problems, simultaneously. A structure-based design approach was successfully utilized to obtain compound 16g (I), which is a potent TRβ agonist (EC₅₀: 21.0 nM, 85.0% of the maximum efficacy of 1) with outstanding selectivity for TRβ over TRα and also effectively activates the TRβ^H435R mutant. Then, we developed a highly efficient synthetic method for 16g. Our serials of cocrystal structures revealed detailed structural mechanisms in overcoming subtype selectivity and rescuing the H435R mutation. 16g also showed excellent lipid metabolism, safety, metabolic stability, and pharmacokinetic properties. Collectively, 16g is a well-characterized selective and mutation-sensitive TRβ agonist for further investigating its function in treating dyslipidemia, nonalcoholic steatohepatitis (NASH), and resistance to thyroid hormone (RTH).

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., Reference of 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. 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. HPLC of Formula: 870-50-8.

Li, Quan-Zhe;Wang, Xun-Hui;Hou, Si-Hua;Ma, Yan-Yan;Zhao, Deng-Gao;Zhang, Shu-Yu;Bai, He-Yuan;Ding, Tong-Mei research published 《 Silver-Catalyzed para-Selective C-H Amination of 1-Naphthylamides with Azodicarboxylates at Room Temperature》, the research content is summarized as follows. A simple and efficient protocol for para-selective C-H amination of 1-naphthylamide derivatives under silver catalysis was described. This reaction system proceeded without the help of directing group and a broad range of substrates were proved to be well tolerated. In addition, control experiments suggested that this reaction might not proceed via a single-electron-transfer process.

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., HPLC of Formula: 870-50-8

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. Name: Diethyl 2-(ethoxymethylene)malonate.

Li, Weiqiang;Wu, Qin;Xu, Genrui;Sun, Yinjing;Huang, Chao;Liu, Teng research published 《 A Practical Synthesis of N-aryl/N-alkyl 4-Pyridones under Continuous Flow Technology》, the research content is summarized as follows. A practical synthetic approach to access N-aryl/N-alkyl 4-pyridones via a two-step continuous flow process was developed. In comparison to batch conditions, this [3+2+1] cycloaddition involving a three-components cascade reaction of aniline, dialkyl ethoxymethylene malonate and dialkyl acetylenedicarboxylate under mild conditions, which was provided N-aryl/N-alkyl 4-pyridone derivatives with a wider substrate scope and good to excellent yields.

Name: Diethyl 2-(ethoxymethylene)malonate, 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., 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. 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. Quality Control of 870-50-8.

Kabes, Connor Q.;Maximuck, William J.;Ghosh, Subrata K.;Kumar, Anil;Bhuvanesh, Nattamai;Gladysz, John A. research published 《 Chiral Tricationic Tris(1,2-diphenylethylenediamine) Cobalt(III) Hydrogen Bond Donor Catalysts with Defined Carbon/Metal Configurations; Matched/Mismatched Effects upon Enantioselectivities with Enantiomeric Chiral Counter Anions》, the research content is summarized as follows. The enantiopure and diastereopure salts Λ- or Δ-[Co((S,S)-dpen)₃]³⁺ 2Cl^–BAr_f^– (Λ- or Δ-(S,S)-1³⁺ 2Cl^–BAr_f^–; dpen/BAr_f = 1,2-diphenylethylenediamine/B(3,5-C₆H₃(CF₃)₂)₄) and Λ-(S,S)-1³⁺ 3Cl^– are treated with salts of the enantiopure chiral monoanions (A^–) or dianions (A^2-) 3-bromocamphor-8-sulfonate (camphSO₃^–), 1,1′-binaphthyl-2,2′-diyl phosphate (and three 3,3′-disubstituted derivatives), a related biphenanthryl species, tartrate, and Sb₂(tart’)₂^2- (tart’ = [^–O₂C-CHO^–-CHO^–-CO₂^–]). The lipophilic salts Λ- or Δ-(S,S)-1³⁺ 2A^–BAr_f^–, Λ-(S,S)-1³⁺ A^2-BAr_f^–, and Λ-(S,S)-1³⁺ 3A^– are isolated as hydrates and characterized by NMR and microanalyses. In the presence of tertiary amines, many of these are highly enantioselective catalysts for additions of 1,3-dicarbonyl compounds to trans-β-nitrostyrene and di-tert-butylazodicarboxylate. The ee values for diastereomeric salts can exhibit significant differences (avg/high/median Δ_%ee = 10/63/6; matched/mismatched effect), and in a few cases, they are better than those obtained with Λ- or Δ-(S,S)-1³⁺ 2Cl^–BAr_f^–. The crystal structure of Δ-(S,S)-1³⁺ 2(1S)-camphSO₃^–BAr_f^– shows that the two sulfonate moieties H-bond to opposite (idealized) C₃-sym. faces of the trication, with a sep. O atom associated with each of the three syn-periplanar NH groups.

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

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. 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate. Esters typically have a pleasant smell; those of low molecular weight are commonly used as fragrances and are found in essential oils and pheromones. Application In Synthesis of 870-50-8.

Kabes, Connor;Lucas, Reagan;Gunn, Jack;Gladysz, John research published 《 Chiral Cobalt(III) Tris(1,2-diamine) Catalysts That Incorporate Nitrogenous Base Containing Anions for the Bifunctional Activation of Nucleophiles and Electrophiles in Enantioselective Addition Reactions》, the research content is summarized as follows. Here, The lipophilic diastereomeric cobalt complexes Λ or Δ-[Co((S,S)-dpen)₃]³⁺ 2Cl-BArf- (Λ or Δ-(S,S)-2³⁺ 2Cl-BArf-; dpen/BArf- = 1,2-diphenylethylenediamine/B(3,5-C₆H₃(CF₃)₂)₄^–) ,salts of nicotinates, isonicotinates, related sulfonates, and N,N-dimethylaminobenzoate were applied addition reactions. The 6-chloronicotinate salt gaves slower rates and lower ee values, and the 6-aminonicotinate salt gave faster rates and higher ee values. The 6-Me, 2-methoxy, and unsubstituted analogs afforded intermediate results. The 6-aminonicotinate catalyst was applied to additions of di-Me malonate to aryl-substituted nitroolefins and additions of 1,3-dicarbonyl compounds to di-t-Bu azodicarboxylate, with average yields/ee values of 90%/85% and 94%/77%, resp. The authors were unaware of other ionic catalysts for which Bronsted bases was productively incorporated into the anions, which were seldom if ever purposefully functionalized in any manner.

Application In Synthesis of 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., 870-50-8.

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