Tag: 200-300

A novel chemoenzymatic synthesis of propyl caffeate using lipase-catalyzed transesterification in ionic liquid was written by Pang, Na;Gu, Shuang-Shuang;Wang, Jun;Cui, Hong-Sheng;Wang, Fang-Qin;Liu, Xi;Zhao, Xing-Yu;Wu, Fu-An. And the article was included in Bioresource Technology in 2013.Computed Properties of C10H20N2O4S The following contents are mentioned in the article:

Pr caffeate has the highest antioxidant capacity in the caffeate alkyl esters family, but industrial production of Pr caffeate is hindered by low yields using either the chem. or enzymic catalysis method. To set up a high-yield process for obtaining Pr caffeate, a novel chemoenzymic synthesis method using lipase-catalyzed transesterification of an intermediate Me caffeate or Et caffeate and 1-propanol in ionic liquid was established. The maximum Pr caffeate yield of 98.5% was obtained using lipase-catalyzed transesterification under the following optimal conditions: Novozym 435 as a biocatalyst, [Bmim][CF₃SO₃] as a medium, a molar ratio of Me caffeate to 1-propanol of 1:5, a mass ratio of Me caffeate to lipase of 1:20, and a reaction temperature of 60 °C. The two-step conversion of caffeic acid to Pr caffeate via Me caffeate is an efficient way to prepare Pr caffeate with an overall yield of 82.7%. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Computed Properties of C10H20N2O4S).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Computed Properties of C10H20N2O4S

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthesis and optical properties of [C₆₀/C₇₀] fullerene derivatives containing spirobifluorene and imidazole units was written by Li, Caihua;Zeng, Heping;Ouyang, Xinhua;Wang, Ruixiang;Ji, Wei. And the article was included in Journal of Optoelectronics and Advanced Materials in 2011.Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate The following contents are mentioned in the article:

A series of [C₆₀/C₇₀] fullerene derivatives containing different spirobifluorene and tri-Ph imidazole were synthesized and confirmed by IR, ¹H NMR, ¹³C NMR, MALDI-TOF-MS. Their optical limiting properties were investigated by nanosecond and femtosecond laser systems. Results showed that fullerene derivatives exhibited high optical limiting properties. Lower OL thresholds of 13.7, 14.9, 15.3, 23.3, and 24.0 J/cm² were observed for C₇₀-SBF, C₆₀-TPI, C₆₀-SBF, C₆₀-FSBF, and C₆₀-BTPI resp. with the linear transmittance of 75%, which implied that these optical limiting properties increased with the degree of conjugation and electron-donating or electron-accepting abilities of donors or acceptors in donor-acceptor (D-A) structures. The strong D and A with large conjugation is an effective way to enhance OL properties. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The preventive effect of two coordination polymers in the treatment of hypotension after uterine oviduct and ovarian surgery was written by Li, Chang-Kun;Ren, Xiao-Jing;Zhang, Jing-Yi;Zheng, Zhong-Lei;Du, Ke-Xin. And the article was included in Latin American Journal of Pharmacy in 2022.Synthetic Route of C11H9N5 The following contents are mentioned in the article:

In the current study, via using the mixed-ligand synthesis approach, two new Cu(II) and Co(II)-containing coordination polymers (CPs) with the chem. compositions of {[Cu2(L)[H(1,4-bmib)]]·1.5(H2O)}n (11, 1,4-bmib = 1,4-bis(2-methylimidazol-1-yl)butane) and {[Co2(HL)(3,5-bip)2]·(H2O)}n (2, 3,5-bip = 3,5-bis(1-imidazolyl) pyridine) have been successfully prepared by reaction of the corresponding metal salts with the flexible carboxylic ligand 3,5-bis(3,5-dicarboxylphenoxy)benzoic acid (H5L) in the presence of different N-donor co-ligands. Furthermore, the biol. activity of compounds 1 and 25 on the hypotension after uterine oviduct and ovarian surgery was evaluated and the related mechanism was explored at the same time. Firstly, the blood pressure of the hypotension animal model was measured. Besides, the relative expression of the α receptors on peripheral small blood vessels was determined with real time RT-PCR assay. This study involved multiple reactions and reactants, such as 3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6Synthetic Route of C11H9N5).

3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Synthetic Route of C11H9N5

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Syntheses, structures and fluorescent properties of two zinc coordination polymers based on itaconic acid was written by Yin, Wei-dong;Li, Gui-lian;Li, Xiao-ling;Xin, Ling-yun;Ma, Lu-fang;Liu, Guang-zhen. And the article was included in Wuji Huaxue Xuebao in 2016.HPLC of Formula: 1374155-84-6 The following contents are mentioned in the article:

Two Zn coordination polymers {[Zn(ic)(bip)]·2H₂O}_n (1) and [Zn(ic)(bpe)]_n (2) [H₂ic = itaconic acid, bip = 3,5-bis(1-imidazoly)pyridine and bpe = 1,2-bi(4-pyridyl)ethylene] were synthesized hydrothermally and characterized structurally by single-crystal x-ray diffractions and elemental anal. Both complexes 1 and 2 displayed 2-dimensional (4,4) grid layers containing 1-dimensional metal-carboxylate chains. Thermogravimetric Analyses (TGA), powder x-ray diffractions (PXRD) and fluorescence properties for compounds 1 and 2 were also studied. The solid state fluorescence spectra indicated that the emission spectrum of complex 1 showed obvious blue shift (-78 nm) compared to free bip co-ligand due to the ligand-to-metal charge-transfer (LMCT) effect. The compound 2 showed similar emission spectrum to the free bpe ligand, but the slight red shift might be attributed to the complexation effect between the bpe mol. and Zn atoms. This study involved multiple reactions and reactants, such as 3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6HPLC of Formula: 1374155-84-6).

3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. HPLC of Formula: 1374155-84-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Estimation of the viscosity of ionic liquids at room temperature using volumetric connectivity index was written by Xiong, Yan;Ding, Jing;Yu, Dahong. And the article was included in Jisuanji Yu Yingyong Huaxue in 2012.Electric Literature of C8H15F6N2P The following contents are mentioned in the article:

Ionic Liquids (ILs) have been considered as good green replacements for conventional volatile organic solvents due to their unique environment-friendly characteristics. Viscosity data as one of the most important thermodn. data needed for solvents are still in the scarcity for ILs. Although a large amount of exptl. data have been measured and reported, some appropriate theor. models that are crucial for the design and optimization of chem. processes are required to correlate and predict thermodn. properties. In recent years, many efforts including group contribution and connectivity index were attributed to develop thermodn. models to estimate the viscosity of ILs. In this article, a new approach named volumetric connectivity index (VCI) based on the phys. observable volume of groups and the concept of mol. connectivity index was proposed for the prediction of the viscosity of ILs. Viscosities at room temperature of 90 pure ILs were estimated by this new model and the average devation was only 5.95%, R² and rmsd were 0.9905 and 21cP, resp. This study involved multiple reactions and reactants, such as 1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 157310-73-1Electric Literature of C8H15F6N2P).

1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 157310-73-1) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole is incorporated into many important biological compounds. The most pervasive is the amino acid histidine, which has an imidazole side-chain. Histidine is present in many proteins and enzymes, e.g. by binding metal cofactors, as seen in hemoglobin.Electric Literature of C8H15F6N2P

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

A new class of plant growth regulators, aminomethyl derivatives of 2-methyl-5-hydroxybenzimidazole was written by Apasheva, L. M.;Kuznetsov, Yu. V.;Poltorak, K. D.;Smirnov, L. D.. And the article was included in Izvestiya Akademii Nauk SSSR, Seriya Biologicheskaya in 1987.Related Products of 101018-70-6 The following contents are mentioned in the article:

Four heterocyclic phenolic antioxidants I (R = H, piperidinomethylene, II, or CH₂NMe₂) showed cytokinin activity (stimulation of germination in millet and corn seed weakened by prolonged storage) exceeding benzimidazole (III). At 1, 0.1, 1, and 1 mg/L, resp., I stimulated root growth in corn seedlings by 27.4, 26.5, 9.9, and 54.4%, resp., vs. 8.1% for III, and the growth of aerial parts by 19.7, 8.8, and 57.3, and 133%, resp., vs. 35.6% for III. I acted by stimulating extension growth of cells of corn root tips. I (R = CH₂NMe₂) at 1 mg/L increased total chlorophyll and chlorophyll a of corn leaves by 29 and 36%, resp., and at 10 mg/L stimulated shoot formation by Elodea by 3-fold. I (R = piperidinomethylene) increased the length of Elodea shoots by 80%. I were synthesized according to L. D. Smirnov et al. (1983). This study involved multiple reactions and reactants, such as 4-((Dimethylamino)methyl)-2-methyl-1H-benzo[d]imidazol-5-ol (cas: 101018-70-6Related Products of 101018-70-6).

4-((Dimethylamino)methyl)-2-methyl-1H-benzo[d]imidazol-5-ol (cas: 101018-70-6) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. Imidazole also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Related Products of 101018-70-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Near-infrared phosphorescence emission of Zn(II) coordination polymer based on 3,5-bis(1-imidazoly)pyridine: Syntheses, structure and photoelectron performance was written by Lu, Xiao-Min;Zhai, Zhi-Min;Liu, Xin-Yi;Li, Fei-Fei;Yang, Xiao-Gang;Li, Jin-Yao;Guo, Yu-Ming;Ma, Lu-Fang. And the article was included in Journal of Solid State Chemistry in 2019.Application of 1374155-84-6 The following contents are mentioned in the article:

Long wavelength of near IR (NIR) room temperature phosphorescence (RTP) emission is a kind of highly desirable materials. With the self-assembly reaction of D-A-D type semi-rigid 3,5-bis(1-imidazoly)pyridine (BMP) organic ligand and Zn(II) ions, one ionic coordination polymer (CP) {[Zn_0.5(BMP)(H₂O)]·(NO₃)} (1) was synthesized and characterized. The as-synthesized 1 exhibits highly prolonged phosphorescence lifetime >6000 times as long as that of the pristine BMP phosphor ligand. Theory calculation indicates that NO₃^– counterions highly affect the electronic structure and energy levels of the cationic CP host. By a facile anionic exchange, Eosin Y (EY) dye guest encapsulated into the CP host can significantly tune the phosphorescence color from yellow to rare example of near IR emission through an efficient phosphorescence energy transfer. The optoelectronic performance of 1 and EY@1 also were studied. This study involved multiple reactions and reactants, such as 3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6Application of 1374155-84-6).

3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Application of 1374155-84-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Acetone-soluble cellulose acetate extracted from waste blended fabrics via ionic liquid catalyzed acetylation was written by Sun, Xunwen;Lu, Canhui;Zhang, Wei;Tian, Dong;Zhang, Xinxing. And the article was included in Carbohydrate Polymers in 2013.Category: imidazoles-derivatives The following contents are mentioned in the article:

Isolation of cellulose from waste polyester/cotton blended fabrics (WBFs) is a bottleneck for recycling and exploiting waste textiles. The objective of this study was to provide a new environmental-friendly and efficient approach for extracting cellulose derivatives and polyester from WBFs. A Bronsted acidic ionic liquid (IL) N-methyl-imidazolium bisulfate, [Hmim]HSO₄, was used as a novel catalyst for acetylation of cellulose rather than a solvent with the aim to overcome low isolation efficiency associated with the very high viscosity and relatively high costs of ILs. The extraction yield of acetone-soluble cellulose acetate (CA) was 49.3%, which corresponded to a conversion of 84.5% of the cellulose in the original WBFs; meanwhile, 96.2% of the original poly(ethylene terephthalate) (PET) was recovered. The extracted CA was characterized by ¹H NMR, FTIR, XRD and TGA anal., and the results indicated that high purity acetone-soluble CA and carbohydrate-free PET could be isolated in this manner from WBFs. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Category: imidazoles-derivatives).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthesis of ethyl 2-chloropropionate catalyzed by acidic imidazolium ionic liquids was written by Zhou, Xiansi;Liu, Jiabin;Luo, Wenfeng;Zhang, Yiwen;Song, Hang. And the article was included in Huaxue Yanjiu Yu Yingyong in 2011.Formula: C10H20N2O4S The following contents are mentioned in the article:

The synthesis of Et 2-chloropropanoate in acidic imidazolium ionic liquids was studied. Four imidazolium ionic liquids were prepared and employed as catalysts in the esterification. Their acidities were measured by Hammett method and the acidity-catalytic activity relationship was investigated. [Hmim]HSO₄ was found to be the most efficient catalyst. The effects of reaction time, reaction temperature, the molar ratio of alc. to acid, the amount of ILs on the yield of Et 2-chloropropanoate were investigated. The optimum esterification conditions were obtained: reaction time was 2h, n(2-chloropropanoic acid):n(IL):n(ethanol)=1:1:2 and reaction temperature was 90°C. The yield of Et 2-chloropropanoate was 85.5% and the purity of product detected by GC was 99% under the optimum conditions. Even if the catalyst was repeatedly used for 5 times, the catalytic activity maintains stable. The reusability of the IL was excellent and it could be reused for 5 times without obviously catalytic activity decrease. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Formula: C10H20N2O4S).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Formula: C10H20N2O4S

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Comparable Ionicity of the Solutions of Aprotic and Protic Ionic Liquids by Anion Substitution was written by Jain, Preeti;Kumar, Anil. And the article was included in Journal of Solution Chemistry in 2017.Computed Properties of C10H20N2O4S The following contents are mentioned in the article:

Temperature dependent molar conductances and fluidities of bisulfate and Et sulfate anion-based ionic liquids were measured. The extent of dissociation of the ionic liquids was estimated from the Walden plot in term of ionicity. The ionicity mainly depends on the magnitude of Coulombic forces, altered by the anion’s Lewis basicity. Aqueous solutions of aprotic ionic liquids, in general, possesses ionicity in the range of ≈70-99%. This article reveals that the substitution of the anion by bisulfate and ethylsulfate reduces the ionicity of aqueous solution of these ionic liquids to the range of 10-37%. This is very close to that exhibited by some of the protic ionic liquids and phosphonium based ionic liquids with sweetner anions. The concentration dependent molar conductance of these ionic liquids has been fitted to Mahiuddin and Ismail’s equation. To our surprise, the molar conductances of bisulfate-based aprotic ionic liquids are remarkably high, even though these ionic liquids possess lower ionicity. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Computed Properties of C10H20N2O4S).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole has been usedin the lysis, wash and elution buffer for the purification of histidine tagged Sonic Hedgehog(shh-N) protein, in elution buffer in stepwise gradient for the purification of histidine tagged aldo keto reductases using nickel affinity chromatography, as a component of homogenization buffer for the purification of phagosomal compartments from dendritic cells.Computed Properties of C10H20N2O4S

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem