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, 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. Name: Di-tert-butyl diazene-1,2-dicarboxylate.

Jayakrishnan, K. R.;Tamilarasu, M.;Jincy, K. V.;Kaliyamoorthy, Alagiri research published 《 N-Heterocyclic carbene as a Bronsted base catalyst for the amination of naphthol derivatives and alcoholysis of glutaric anhydrides》, the research content is summarized as follows. A non-covalent Bronsted-basic N-heterocyclic carbene catalyzed (NHC) Friedel-Crafts type amination of naphthol derivatives using dialkyl azodicarboxylates as the aminating source was presented for the synthesis of aminonaphthols I [R = Et, i-Pr, t-Bu, Bn; R¹ = H, 3-Br, 6-Ph, etc.]. Also, alcoholysis of various glutaric anhydrides using alc. as pronucleophile was reported for the synthesis of dicarboxylic acid monoesters CO₂HCH(R²)CH(R⁴)(CH₂)_nCO₂R³ [R² = H, Ph; R³ = Me, Et, allyl, etc.; R⁴ = H, Ph, 4-FC₆H₄; n = 0,1]. Both of these reactions were performed in the presence of either com. available free-carbene catalyst or in situ-generated carbene catalyst. Both reactions proceed via in situ activations of -OH group by the carbene catalyst through hydrogen bonding interaction and furnished the relevant products in moderate to excellent yields.

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., Name: Di-tert-butyl diazene-1,2-dicarboxylate

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. Computed Properties of 870-50-8.

Ji, Guanfeng;Zhao, Liang;Wei, Jianwei;Cai, Junkai;He, Cheng;Du, Zenggang;Cai, Wei;Duan, Chunying research published 《 A Metal-Organic Framework as a Multiphoton Excitation Regulator for the Activation of Inert C(sp³)-H Bonds and Oxygen》, the research content is summarized as follows. The activation and oxidization of inert C(sp³)-H bonds into value-added chems. affords attractively economic and ecol. benefits as well as central challenge in modern chem. Inspired by the natural enzymic transformation, herein, we report a new multiphoton excitation approach to activate the inert C(sp³)-H bonds and oxygen by integrating the photoinduced electron transfer (PET), ligand-to-metal charge transfer (LMCT) and hydrogen atom transfer (HAT) events together into one metal-organic framework. The well-modified NAD (NAD⁺) mimics oxidized Ce^III-OEt moieties to generate Ce^IV-OEt chromophore and its reduced state mimics NAD^. via PET. The in situ formed Ce^IV-OEt moiety triggers a LMCT excitation to form the alkoxy radical EtO^., abstracts a hydrogen atom from the C(sp³)-H bond, accompanying the recovery of Ce^III-OEt and the formation of alkyl radicals. The formed NAD^. activates oxygen to regenerate the NAD⁺ for next recycle, wherein, the activated oxygen species interacts with the intermediates for the oxidization functionalization, paving a catalytic avenue for developing scalable and sustainable synthetic strategy.

Computed Properties 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

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. Recommanded Product: Diethyl 2-(ethoxymethylene)malonate.

Jin, Guofan;Li, Zhenwang;Xiao, Fuyan;Qi, Xueyong;Sun, Xianyu research published 《 Optimization of activity localization of quinoline derivatives: Design, synthesis and dual evaluation of biological activity for potential antitumor and antibacterial agents》, the research content is summarized as follows. A series of quinoline I [R¹ = Bn, CH₂Bn, 3,4-di-MeOC₆H₃CH₂CH₂, 4-BnOC₆H₄] and quinolinium iodide salt II [R² = Et, i-Pr] derivatives were synthesized and evaluated for their antitumor and antibacterial activities. With regard to the anticancer properties, the in vitro cytotoxicity against three human cancer cell lines (A-549, Hela and SGC-7901) were evaluated. The antibacterial properties against two human bacterial strains, Escherichia coli (ATCC 29213) and Staphylococcus aureus (ATCC 8739), along with min. inhibitory concentration (MIC) values were evaluated. The target compounds II exhibited significant antitumor and antibacterial activity, of which compound II [R¹ = 4-BnOC₆H₄, R² = i-Pr] was found to be the most potent derivative with IC₅₀ values of 5.18 ± 0.64, 7.62 ± 1.05, 17.59 ± 0.41, and 54.45 ± 4.88 against A-549, Hela, SGC-7901, and L-02 cells, resp., stronger than the pos. control 5-FU and MTX. Furthermore, compound II [R¹ = 4-BnOC₆H₄, R² = i-Pr] had the most potent inhibitory activity. The MIC of this compound against Escherichia coli (ATCC 29213) and Staphylococcus aureus (ATCC 8739) was 3.125 nmol·dot;mL^-1, which was smaller than that of the reference agents, amoxicillin and ciprofloxacin.

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., Recommanded Product: 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. 87-13-8, formula is C10H16O5, Name is Diethyl 2-(ethoxymethylene)malonate. 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 In Synthesis of 87-13-8.

Jin, Guofan;Xiao, Fuyan;Li, Zhenwang;Qi, Xueyong;Zhao, Lei;Sun, Xianyu research published 《 Design, Synthesis, and Dual Evaluation of Quinoline and Quinolinium Iodide Salt Derivatives as Potential Anticancer and Antibacterial Agents》, the research content is summarized as follows. A series of novel quinoline and quinolinium iodide derivatives were designed and synthesized to discover potential anticancer and antibacterial agents. With regard to anticancer properties, in vitro cytotoxicities against three human cancer cell lines (A-549, HeLa and SGC-7901) were evaluated. The antibacterial properties against two strains, Escherichia coli (ATCC 29213) and Staphylococcus aureus (ATCC 8739), along with min. inhibitory concentration (MIC) values were evaluated. The target alkyliodine substituted compounds exhibited significant antitumor and antibacterial activity, of which compound 8-((4-(benzyloxy)phenyl)amino)-7-(ethoxycarbonyl)-5-propyl-[1,3]dioxolo[4,5-g]quinolin-5-ium (I) was found to be the most potent derivative with IC₅₀ values of 4.45±0.88, 4.74±0.42, 14.54±1.96, and 32.12±3.66 against A-549, HeLa, SGC-7901, and L-02 cells, resp., stronger than the pos. controls 5-FU and MTX. Furthermore, compound I had the most potent bacterial inhibitory activity. The MIC of this compound against both E. coli and S. aureus was 3.125 nmol · mL^-1, which was smaller than that against the reference agents amoxicillin and ciprofloxacin.

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., Application In Synthesis of 87-13-8

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. 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate.Nitrate esters, such as nitroglycerin, are known for their explosive properties. Name: Di-tert-butyl diazene-1,2-dicarboxylate.

Jin, Yunhe;Zhang, Qingqing;Wang, Lifang;Wang, Xinyao;Meng, Changgong;Duan, Chunying research published 《 Convenient C(sp³)-H bond functionalisation of light alkanes and other compounds by iron photocatalysis》, the research content is summarized as follows. Herein, we report a practical iron-catalyzed photoredox system for C(sp³)-H transformation of light alkanes to C-N and C-C bonds under ambient temp was reported. The present method with abundant and inexpensive iron salts as photocatalysts exhibited high catalytic efficiency (turnover number up to 8000), mild conditions, and the convenience of being purified and scaled up without chromatog. A photo-induced ligand-to-metal charge transfer between Fe(III) and Cl- generated a highly active chlorine radical that sequentially acted as hydrogen atom transfer catalyst. Therefore, the sustainable, convenient, and environmentally friendly system will find wide applications in high-value-added transformation of natural alkanes with novel inspiration not only for organic synthesis, but also for designing catalytically active organic/inorganic materials.

Name: 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

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.

Herbort, James H.;Bednar, Taylor N.;Chen, Andrew D.;RajanBabu, T. V.;Nagib, David A. research published 《 γ C-H Functionalization of Amines via Triple H-Atom Transfer of a Vinyl Sulfonyl Radical Chaperone》, the research content is summarized as follows. A selective, remote desaturation has been developed to rapidly access homoallyl amines from their aliphatic precursors. The strategy employs a triple H-atom transfer (HAT) cascade, entailing (i) cobalt-catalyzed metal-HAT (MHAT), (ii) carbon-to-carbon 1,6-HAT, and (iii) Co-H regeneration via MHAT. A new class of sulfonyl radical chaperone (to rapidly access and direct remote, radical reactivity) enables remote desaturation of diverse amines, amino acids, and peptides with excellent site-, chemo-, and regioselectivity. The key, enabling C-to-C HAT step in this cascade was computationally designed to satisfy both thermodn. (bond strength) and kinetic (polarity) requirements, and it has been probed via regioselectivity, isomerization, and competition experiments We have also interrupted this radical transfer dehydrogenation to achieve γ-selective C-Cl, C-CN, and C-N bond formations.

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

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.

Hill, Matthew D.;Fang, Haiquan;Norris, Derek;Delucca, George V.;Huang, Hong;DeBenedetto, Mikkel;Quesnelle, Claude;Schmitz, William D.;Tokarski, John S.;Sheriff, Steven;Yan, Chunhong;Fanslau, Caroline;Haarhoff, Zuzana;Huang, Christine;Kramer, Melissa;Madari, Shilpa;Menard, Krista;Monereau, Laura;Morrison, John;Raghavan, Nirmala;Shields, Eric E.;Simmermacher-Mayer, Jean;Sinz, Michael;Tye, Ching Kim;Westhouse, Richard;Xie, Chunshan;Zhang, Haiying;Zhang, Lisa;Zvyaga, Tatyana;Lee, Francis;Gavai, Ashvinikumar V.;Degnan, Andrew P. research published 《 Development of BET Inhibitors as Potential Treatments for Cancer: Optimization of Pharmacokinetic Properties》, the research content is summarized as follows. We describe the synthesis of triazole-containing carboline derivatives and their utility as bromodomain and extra-terminal (BET) inhibitors. A convergent synthetic route permitted the detailed investigation of deuteration and fluorination strategies to reduce clearance while maintaining a favorable in vitro profile. This work led to the identification of a potent BET inhibitor, 2-{8-fluoro-3-[4-(²H₃)methyl-1-methyl-1H-1,2,3-triazol-5-yl]-5-[(S)-(oxan-4-yl)(phenyl)methyl]-5H-pyrido[3,2-b]indol-7-yl}propan-2-ol (15), which demonstrated reduced clearance and an improved pharmacokinetic (PK) profile across preclin. species. Importantly, no major metabolite was observed when 15 was incubated with human hepatocytes (hHEP) for 2 h. This study culminated with the evaluation of 15 in a mouse triple-neg. breast cancer (TNBC) tumor model where it demonstrated robust efficacy at low doses.

HPLC of Formula: 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

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.

Holt-Martyn, James P.;Chowdhury, Rasheduzzaman;Tumber, Anthony;Yeh, Tzu-Lan;Abboud, Martine I.;Lippl, Kerstin;Lohans, Christopher T.;Langley, Gareth W.;Figg, William Jr.;McDonough, Michael A.;Pugh, Christopher W.;Ratcliffe, Peter J.;Schofield, Christopher J. research published 《 Structure-Activity Relationship and Crystallographic Studies on 4-Hydroxypyrimidine HIF Prolyl Hydroxylase Domain Inhibitors》, the research content is summarized as follows. The 2-oxoglutarate-dependent hypoxia inducible factor prolyl hydroxylases (PHDs) are targets for treatment of a variety of diseases including anemia. One PHD inhibitor is approved for use for the treatment of renal anemia and others are in late stage clin. trials. The number of reported templates for PHD inhibition is limited. We report structure-activity relationship and crystallog. studies on a promising class of 4-hydroxypyrimidine-containing PHD inhibitors.

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

Polyesters are important plastics, with monomers linked by ester moieties. Phosphoesters form the backbone of DNA molecules. 870-50-8, formula is C10H18N2O4, Name is Di-tert-butyl diazene-1,2-dicarboxylate.Nitrate esters, such as nitroglycerin, are known for their explosive properties. HPLC of Formula: 870-50-8.

Hu, Zhiyun;Ge, Hongyu;Yang, Xinzheng research published 《 Binuclear O₂ activation and hydrogen transfer mechanism for aerobic oxidation of alcohols》, the research content is summarized as follows. A d. functional theory study of the aerobic oxidation of 1-phenylethanol into acetophenone catalyzed by phenanthroline copper (phenCu) complexes reveals a binuclear O₂ activation and hydrogen transfer mechanism with multiple spin-crossover steps. When di-tert-Bu azodicarboxylate (DBAD) exists, it acts as a stoichiometric oxidant and forms DBADH₂ through successive transfers of the proton and hydride from 1-phenylethanol to DBAD in one transition state with a free energy barrier of 21.8 kcal mol^-1. After the consumption of DBAD, DBADH₂ acts as a co-catalyst assisting O₂ activation and acetophenone formation through binuclear transition states for the cleavages of O-O and C-H bonds with a total free energy barrier of 24.6 kcal mol^-1. Without the presence of DBAD or DBADH₂, the total free energy barrier for the aerobic oxidation of 1-phenylethanol with the participation of two phenCu complexes is 26.1 kcal mol^-1. In all the above three situations, the rate-determining step is the activation of the C-H bond in 1-phenylethanol. The formation of HOO radical and the breaking of the O-O bond in hydrogen peroxide for the formation of a Cu(II)-hydroxyl dimer are also key steps in the reaction and need the participation of two phenCu complexes.

HPLC of Formula: 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

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. Synthetic Route of 87-13-8.

Hua, Xuewen;Liu, Wenrui;Chen, Yan;Ru, Jing;Guo, Shangjing;Yu, Xiaobo;Cui, Yanhong;Liu, Xinghai;Gu, Yucheng;Xue, Chenmeng;Liu, Yi;Sui, Junkang;Wang, Guiqing research published 《 Synthesis, Fungicidal Activity, and Mechanism of Action of Pyrazole Amide and Ester Derivatives Based on Natural Products L-Serine and Waltherione Alkaloids》, the research content is summarized as follows. The development of new green fungicides based on the structural optimization of natural products can effectively solve the problems of low safety and high pathogen resistance of traditional fungicides. In this paper, based on pyrazole amide compound h-I-9 with excellent fungicidal activity discovered in the previous work, a series of L-serine-derived pyrazole amide and waltherione alkaloid-derived pyrazole ester derivatives were synthesized. The structures were successively identified by ¹H NMR, ¹³C NMR, high-resolution mass spectrometry, and X-ray single-crystal diffraction. The in vitro and in vivo fungicidal activity screening demonstrated that compound I showed a good inhibition rate against Physalospora piricola. A transmission electron microscope and fluorescence microscope observation further revealed that compound I may cause damage to the cell membranes and vacuoles, and the hyphae treated with I could produce obvious and easily observed blue fluorescence. The succinate dehydrogenase (SDH) enzymic activity and mol. docking simulation indicated that compounds I (R¹ = OH)and I (R¹ = Cl) may be potential SDH inhibitors against Alternaria sp.

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., Synthetic Route of 87-13-8

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