Tag: 200-300

Acid ionic liquid [Hmim]HSO₄ as catalyst for the production of biodiesel from microalgae was written by Lin, Lu;Liu, Kang;Wang, Rui;Yu, Meiqing. And the article was included in Petroleum & Coal in 2017.Category: imidazoles-derivatives The following contents are mentioned in the article:

The reaction conditions of transesterification during Chlorella protothecoides biodiesel preparation using an acid ionic liquid [Hmim]HSO₄ as catalyst was studied. The product was analyzed by gas chromatog. and the productivity was calculated The results showed that under ultrasonic condition, Et ether had the highest extraction rate (9.97% at 25min). The best conditions of transesterification were as follows: the molar ratio of methanol to the microalgae oil was 9:1, the reaction time was 7h, the reaction temperature was 70°C and the dosage of the catalyst accounted for 7% of the mass of the microalgae oil. Under this condition, the yield of biodiesel could reach 64%âˆ?5%.As a result, the production had already reached the diesel standard of China from the perspective of phys. and chem. properties. 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. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. 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.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Bronsted acid ionic liquid activated electrodes catalyze water electrolysis for production of hydrogen was written by Chen, Jia-zhi;Meng, Ling-yi;Wang, Ya-jing;Meng, Jin-lei;Jiang, Feng;Chu, Zhe;Liu, Hong-tao. And the article was included in Fenxi Huaxue in 2016.Related Products of 478935-29-4 The following contents are mentioned in the article:

The water electrolysis for production of hydrogen in the Bronsted acid ionic liquid [HMIm]HSO₄ aqueous solutions was investigated using glassy carbon (GC), platinum (Pt), and gold (Au) electrodes, resp. It was found that the catalytic activity of the electrodes in the acid ionic liquid electrolytes ranked in sequence as Pt > Au >> GC. The optimal concentration of [HMIm]HSO₄ in aqueous solutions was 30% (V/V), and the catalytic c.d. on Pt electrode for hydrogen evolution reaction (HER) at -0.5 V (Ag QRE) reached 110.52 mA/cm². This was 15 and 650-fold larger than the current on the Au and GC electrode, resp. The Arrhenius activation energy of the Pt electrode in the electrolyte solution was 5.68 kJ/mol. The high catalytic activity of the electrode was attributed to the [HMIm]HSO₄ that would release protons enabling H₂O mols. ionization, and facilitating the capture of electrons from the electrode. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Related Products of 478935-29-4).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. 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).Related Products of 478935-29-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Extractive and oxidative desulfurization of fuel oils using hydrosulfate based ionic liquids was written by Xiao, Jing;Wang, Qiang;Zhou, Mingdong;Yan, Wenchao;Zang, Shuliang. And the article was included in Shiyou Huagong Gaodeng Xuexiao Xuebao in 2013.HPLC of Formula: 478935-29-4 The following contents are mentioned in the article:

A series of N-methylimidazolium hydrosulfate type of ionic liquids (ILs) bearing different length of alkyl chains were synthesized. The ionic liquids were applied both as extracting reagent and catalyst for the model or true oil desulfurization using hydrogen peroxide (35%) as the oxidant. The desulfurization conditions were optimized by varying extraction time, the ratio of ILs/oil, temperature and so on. Under the optimal conditions, the ILs were also used for the desulfurization of FCC gasoline and diesel. The results show that, [C₃mim]HSO₄ has the highest desulfurization rate. The best desulfurization rate was obtained after 1.5 h under the condition of V ([C₃mim]HSO₄)/V (H₂O₂)/V (oil) = 1 : 1 : 30 at 60°C for the model oil (88.38%) and diesel (80%). The sulfur content of FCC gasoline has decreased to 10 μg/g below, which shows a very promising perspective for industrial applications. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4HPLC of Formula: 478935-29-4).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) 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 derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.HPLC of Formula: 478935-29-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Conversion of platform chemical glycerol to cyclic acetals promoted by acidic ionic liquids was written by Wang, Bo;Shen, Yue;Sun, Jiankui;Xu, Feng;Sun, Runcang. And the article was included in RSC Advances in 2014.Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate The following contents are mentioned in the article:

The condensation of glycerol, a platform chem. from renewable materials, with benzaldehyde to generate cyclic acetals was investigated using acidic ionic liquid as catalyst. Evidence was presented that the product mixture of 4-hydroxymethyl-2-phenyl-1,3-dioxolane and 5-hydroxyl-2-phenyl-1,3-dioxane, with cis and trans two stereo-isomers for each one identified by ¹H NMR were obtained. Further modification of reaction conditions promoted by N-butyl-pyridinium bisulfate ([BPy]HSO₄) led to the totally cyclic acetals with 99.8% yield at room temperature A micro water-removal reactor constituted by ionic liquids was proposed, which favorably shifted the condensation equilibrium to the product side by transferring the produced water out of the organic phase in time, so that the water-carrying agent or reactive distillation was avoided. Moreover, the product separation made this methodol. more accessible to sustainable green biomass chem. 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. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.Quality Control of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Two novel Co (II) bifunctional MOFs: Syntheses and applications in photocatalytic degradation of dyes and electrocatalytic water oxidation was written by Cui, Guanning;Liu, Wenbo;Wang, Lulu;Wu, Ruixue;Bi, Caifeng;Zhang, Dongmei;Fan, Yuhua. And the article was included in Journal of Solid State Chemistry in 2021.Safety of 3,5-Di(1H-imidazol-1-yl)pyridine The following contents are mentioned in the article:

Two novel Co (II) MOFs based on 5-(4-(imidazolyl-1-yl)phenyl) isophthalic acid (H₂L), [Co(L)(tib)(H₂O)₂]_n (CP 1) and [Co(L)(bip)_0.5]_n (CP 2) (tib = 1,3,5-tris (1-imidazolyl) benzene, bip = 3,5-bis(1-imidazolyl) pyridine ether) were synthesized under solvothermal conditions and characterized by powder x-ray diffraction, single crystal x-ray diffraction. The photodegradation studies demonstrate that CPs 1–2 show high-efficiency degradation of MV (Methyl violet), and the mechanism studies demonstrate that the main active species are ·OH radicals. Meanwhile, electrochem. studies demonstrate that CPs 1–2 can catalyze water oxidation under alk. conditions, and CPs 1–2 only need the overpotential of 348 mV-760 mV to deliver the c.d. of 1 mA cm^-2. This study involved multiple reactions and reactants, such as 3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6Safety of 3,5-Di(1H-imidazol-1-yl)pyridine).

3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. 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.Safety of 3,5-Di(1H-imidazol-1-yl)pyridine

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Highly efficient preparation of 5-hydroxymethylfurfural from sucrose using ionic liquids and heteropolyacid catalysts in dimethyl sulfoxide-water mixed solvent was written by Yu, Song-Bai;Zang, Hong-Jun;Yang, Xiao-Li;Zhang, Ming-Chuan;Xie, Rui-Rui;Yu, Pei-Fei. And the article was included in Chinese Chemical Letters in 2017.Related Products of 478935-29-4 The following contents are mentioned in the article:

Several types of ILs and solid acids were used as catalysts in one-pot conversion of sucrose to 5-hydroxymethylfurfural (abbreviated as 5-HMF) in a DMSO/water mixed solvent under hydrothermal conditions. A remarkable 5-HMF yield of 91.8% was achieved catalyzed by the cesium salt of dodecatungstophosphoric acid (Cs_2.3H_0.7PW₁₂O₄₀) within 3 h at 180 °C. The ionic liquid N-methylimidazolium hydrogen sulfate ([Hmim][HSO₄]) gave the 5-HMF in 82.0% yield from sucrose. To the best of our knowledge, it was almost the highest yield of HMF from sucrose by now. Various reaction parameters including reaction temperature and time and catalyst dosage were optimized. A possible mechanism for this catalytic process was proposed. Furthermore, fructose and glucose were also investigated, good yields of 5-HMF was obtained resp. This increases the possibility of large-scale production of 5-HMF from carbohydrates. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Related Products of 478935-29-4).

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).Related Products of 478935-29-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthesis of phenethyl acetate with acidic ionic liquid as catalyst was written by Liu, Xiaoyu. And the article was included in Henan Huagong in 2015.Electric Literature of C10H20N2O4S The following contents are mentioned in the article:

Phenethyl acetate (PEAC) is synthesized by using an acidic ionic liquid n-hexyl-methylimidazolium bisulfate abbreviated as [n-C₆Im][HSO₄] as catalyst. By studying on the effect of various factors on the conversion rate, the optimal conditions include 1:1.2 2-Ph ethanol/vinyl acetate, the ionic liquid 5wt%, 140°C reaction temperature and 6 h of reaction time, the conversion of PEAC is 91.8%. After the reaction completed, the [n-C₆Im][HSO₄] could be used for a new synthesis of PEAC. Although the conversion slightly reduced after the [n-C₆Im][HSO₄] was reused for four times, its catalytic activity could reach to original level by adding suitable sulfuric acid. Compared with classical strong acid catalysts, the reaction system using ionic liquid [n-C₆Im][HSO₄] as catalyst offers many advantages of good color of PPAE, easy recovery, and reuse of the catalyst. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Electric Literature of C10H20N2O4S).

1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4) 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. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Electric Literature of C10H20N2O4S

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

A method for determination of Hammett acidity function (H₀) of ionic liquid/sulfuric acid binary mixtures was written by Zhou, Fei;Zhang, Yuan;Zhang, Tao;Liang, Bin;Tang, Sheng-wei. And the article was included in Tianranqi Huagong in 2013.Recommanded Product: 478935-29-4 The following contents are mentioned in the article:

A method for determining the Hammett acidity function (H₀) of ionic liquid/H₂SO₄ binary mixtures was established by analyzing the measuring principal and choosing the suitable media for protonating or unprotonating the indicators. 2-Benzoylnaphthalene, 6-bromo-2, 4-dinitroaniline, anthraquinone and 4-nitrotoluene were used as indicators for different scopes of H₀. The reliability of this method was evaluated by comparing the exptl. H₀ and the literature H₀ of H₂SO₄ solution, and the relative deviation was less than 0.5%. The method was successfully used to determine the H₀ of the ([HMIm][HSO₄])/H₂SO₄ with a IL mass fraction of up to 19% and the ([MBSIm][HSO₄])/H₂SO₄ with a IL mass fraction of up to 15%. The relative deviation of three parallel measurements was less than 0.3%. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Recommanded Product: 478935-29-4).

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 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.Recommanded Product: 478935-29-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Highly selective synthesis for 4,4′-bisphenol F from phenol and formaldehyde catalyzed with [C₄min][HSO₄] ionic liquid was written by Wang, Danfeng;He, Zhicheng;Wu, Zhimin;Tan, Ying;Li, Yongfei;Liu, Yuejin. And the article was included in Chinese Journal of Chemical Engineering in 2016.Category: imidazoles-derivatives The following contents are mentioned in the article:

The effects of N-methylimidazole cation [C_nmin] with different alkyl chain lengths, the types of cations and anions of ionic liquids and the reaction parameters on the catalytic activity and the selectivity for 4,4′-bisphenol F were investigated. The hydrogen bonding between the hydroxyl of phenol and the C2-position hydrogen of imidazole moiety in hydrophilic imidazole-based ionic liquid has important influence on the selectivity for 4,4′-bisphenol F, and under the conditions of the molar ratio of phenol/[C₄min][HSO₄] 1:1, reaction temperature 65°C and the theor. molar ratio of phenol/formaldehyde 2:1, the selectivity for 4,4′-bisphenol F reached 69.1%. Compared with the high phenol/formaldehyde ratio reported in literatures, the low molar ratio of phenol/formaldehyde and the low reaction temperature could greatly reduce energy consumption, and had important significance for industrial application. 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. 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 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).Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Two dimensional coordination polymers based on 3,5-di(1H-imidazol-1-yl)pyridine and their fluorescence properties was written by Zhang, Hao;Zhu, Zhao Qiang;Zhou, Fu-Hou;Redshaw, Carl;Chen, Kai;Xu, Jing. And the article was included in Journal of Molecular Structure in 2020.Application In Synthesis of 3,5-Di(1H-imidazol-1-yl)pyridine The following contents are mentioned in the article:

The solvothermal synthesis of three new 2D MOFs is reported. From the reaction of 3,5-di(1H-imidazol-1-yl)pyridine (dip) and the metal salts Co(NO₃)₂·6H₂O, Cd(NO₃)₂·4H₂O or Zn(NO₃)₂·4H₂O, the three MOFs [Co(dip)₂(SCN)₂] (1), {[Cd(dip)₂(H₂O)₂]·(NO₃)₂} (2), {[Zn(dip)₂(H₂O)₂]·(ClO₄)₂} (3) were obtained. For these 2D MOFs, all the metal ions adopt a six-coordinate octahedral geometry with axial coordination sites occupied by SCN^– or water mols. The SCN^–/water ligands were all mono-coordinate and led to layered MOF structures. Furthermore, the fluorescence properties of 2 and 3 have been investigated. This study involved multiple reactions and reactants, such as 3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6Application In Synthesis of 3,5-Di(1H-imidazol-1-yl)pyridine).

3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Application In Synthesis of 3,5-Di(1H-imidazol-1-yl)pyridine

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem