Tag: 200-300

Ionic liquid promoted cyclocondensation reactions to the formation of isoxazoles, pyrazoles and pyrimidines was written by Moreira, Dayse N.;Longhi, Kelvis;Frizzo, Clarissa P.;Bonacorso, Helio G.;Zanatta, Nilo;Martins, Marcos A. P.. And the article was included in Catalysis Communications in 2010.Category: imidazoles-derivatives The following contents are mentioned in the article:

A simple one-pot procedure to obtain a series of five- and six-membered heterocycles, e. g., I and II in three different ionic liquids ([BMIM][BF₄], [BMIM][OH] and [HMIM][HSO₄]) is described. The synthetic protocol involves the reaction between β-enamino ketone derived from 1,4-diacetylbenzene and hydroxylamine, hydrazines (R¹NHNH₂, where R¹ = H, Ph, 4-O₂N-Ph, 2,4-(O₂N)₂-Ph, C₆F₅, CO₂Me, CONH₂, CH₂CH₂OH, t-Bu) or amidines (R²C(NH)NH₂, where R² = NH₂, Ph), furnishing bis-isoxazoles, bis-pyrazoles and bis-pyrimidines in good yields and short reaction times. 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. 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 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.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Zinc coordination polymers with rigid dicarboxylates and semirigid 3,5-bis(imidazole-1-yl) pyridine: syntheses, structural topologies, and luminescent properties was written by Xu, Jiakun;Sun, Xiaochun;Ju, Caixia;Sheng, Jun;Wang, Fang;Sun, Mi. And the article was included in Journal of Coordination Chemistry in 2013.Formula: C11H9N5 The following contents are mentioned in the article:

Two metal coordination polymers, {[Zn(bpdc)(bip)]·2H₂O}_n (1) and [Zn(tdc)(bip)] (2) [H₂bpdc (5) = biphenyl-4,4′-dicarboxylate, H₂tdc (7) = thiophene-2,5-dicarboxylate, bip (6) = 3,5-bis(imidazole-1-yl)pyridine], were synthesized and characterized by IR, elemental anal., XRD, and x-ray single-crystal diffraction. In, bpdc and bip link Zn(II) ions into a corrugated 2D layer. The corrugated 2D layers polycatenate each other, yielding a 2Dâ†?D polycatenation net. In, dinuclear Zn(II) units are formed by bip and further connected by tdc to construct a 2D 3-connected framework. The luminescent properties of and were studied in the solid state at room temperature This study involved multiple reactions and reactants, such as 3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6Formula: C11H9N5).

3,5-Di(1H-imidazol-1-yl)pyridine (cas: 1374155-84-6) 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. Formula: C11H9N5

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The intrinsic anodic stability of several anions comprising solvent-free ionic liquids was written by Koch, V. R.;Dominey, L. A.;Nanjundiah, C.;Ondrechen, M. J.. And the article was included in Journal of the Electrochemical Society in 1996.Electric Literature of C8H15F6N2P The following contents are mentioned in the article:

Salts of the form 1,2-dimethyl-3-propylimidazolium X [where X = AsF₆^–, PF₆^–, (CF₃SO₂)₂N^–, and (CF₃SO₂)₃C^–] were prepared and purified. Linear sweep voltammetry was conducted at 80°, a temperature at which all four salts were molten, at Pt, W, and glassy C working electrodes. The intrinsic anodic stability of these anions was in the order (CF₃SO₂)₃C^– > (CF₃SO₂)₂N^– approx. AsF₆^– > PF₆^–. These exptl. solution-phase oxidation potentials correlated well with gas-phase HOMO energies calculated by an ab initio technique. 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 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).Electric Literature of C8H15F6N2P

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Catalytic activities of acidic ionic liquids in bio-diesel trans-esterification was written by Bo, Yang;Zhang, Li-ming;Man, Rui-lin. And the article was included in Lanzhou Ligong Daxue Xuebao in 2010.Application In Synthesis of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate The following contents are mentioned in the article:

Four kinds of Bronsted-acidic ionic liquids with nitrogen-laden functional groups and different anions were synthesized and characterized with NMR, IR spectrum and thermogravimetric anal. In this paper, on this basis, the trans-esterification of triolein and methanol was studied and the catalytic activities of ionic liquids in trans-esterification were investigated. The results showed that their catalytic activities were related with the structures of nitrogen-laden functional groups, anionic acid strength and acid volume Pyridine and Me pyridine ionic liquids, whose anions were HSO₄^– and H₂PO₄^–, were used jointly to accelerate the reaction and get a higher yield of methyl-ester under the coaction of anions and cations. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Application In Synthesis 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. 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).Application In Synthesis of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Oxidative desulfurization of model oil extracted and catalyzed by acidic ionic liquid was written by Yan, Biying. And the article was included in Huagong Xinxing Cailiao in 2015.Category: imidazoles-derivatives The following contents are mentioned in the article:

Three kinds of acidic functional ionic liquid [HMIM]HSO₄, [HPy]HSO₄ and [Hnhp]HSO₄ were synthesized, and used in the desulfurization process of DBT in the model oil. The ionic liquids all performed excellent performance of desulfurization, in which [Hnhp]HSO₄ explained the highest desulfurization rate. The effects of conditions of the desulfurization process on the sulfur removal rate were studied catalyzed by ionic liquid [Hnhp]HSO₄. The results showed that the sulfur removal of DBT in model oil could reach 99.4% when n (H₂O₂)/n (S) = 8, t = 60 min, T = 60°C, V ([Hnhp]HSO₄):V (model oil) = 1:5. [Hnhp]HSO₄ could be recycled 6 times with merely a slight decrease in activity. 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. 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 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

Synthesis of propylparaben catalyzed by acidic ionic liquid was written by Huang, Yanxian;Shen, Jinlan. And the article was included in Guangdong Huagong in 2013.Application In Synthesis of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate The following contents are mentioned in the article:

With p-hydroxybenzoic acid and n-propanol as raw materials, synthesis of propylparaben catalyzed by acidic ionic liquid [Hmim]HSO₄ was researched. The structure of propylparaben was characterized by IR and LC-MS. The effects of the molar ratio of p-hydroxybenzoic acid to n-propanol, reaction time, reaction temperature and catalyst amount on the yield of propylparaben were investigated. The optimal conditions were obtained as follows: the molar ratio of p-hydroxybenzoic acid to n-propanol 1:3, the catalyst amount of reactant total mass 4%, reaction time 3 h, and reaction temperature 90°C. Under above conditions, the yield of the propylparaben reached 91.8%. The catalytic activity of [Hmim]HSO₄, was remained mostly after it was reused for 5 times. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4Application In Synthesis 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. Imidazole derivatives generally have good solubility in protic solvents. Simple imidazole derivatives, such as 1H-imidazole, 2-methyl-1H-imidazole, and 1,2-dimethylimidazole, have very high solubility in water. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.Application In Synthesis of 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Dual intercalating molten electrolyte batteries was written by Carlin, Richard T.;De Long, Hugh C.;Fuller, Joan;Trulove, Paul C.. And the article was included in Journal of the Electrochemical Society in 1994.Recommanded Product: 157310-73-1 The following contents are mentioned in the article:

The reductive and oxidative intercalation of ions into graphite from room- and low-temperature molten salts was demonstrated. The molten salts used 1-ethyl-3-methylimidaziolium (EMI⁺) or 1,2-dimethyl-3-propylimidazolium (DMPI⁺) as the cation and AlCl₄^–, BF₄^–, PF₆^–, CF₃SO₃^–, or PhCO₂^– as the anion. In a 2-electrode battery configuration, the molten salt electrolyte provides both the cation and anion, which are intercalated into the graphite anode and cathode, resp. A battery using a (DMPI)(AlCl₄) electrolyte and 2 graphite rod electrodes achieved an open-circuit voltage of 3.5 V and a cycling efficiency of 85%. This study involved multiple reactions and reactants, such as 1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 157310-73-1Recommanded Product: 157310-73-1).

1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 157310-73-1) 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. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Recommanded Product: 157310-73-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Tuning Proton Exchange and Transport in Protic Ionic Liquid Solution through Anion Chemistry was written by Huang, Gongyue;Porcarelli, Luca;Forsyth, Maria;Zhu, Haijin. And the article was included in Journal of Physical Chemistry Letters in 2021.SDS of cas: 478935-29-4 The following contents are mentioned in the article:

Herein, we demonstrate that the p.d. of proton reduction and hydrogen gas oxidation of protic ionic liquids is closely related to the proton exchange rate in the electrolyte. Through a careful design of anion chem., the proton exchange rate can be boosted by several orders of magnitude, reaching 200 kHz at 100°C. It is found that the enhanced proton exchange rate can effectively decrease the potential loss at the electrode, most likely through alleviating the H⁺ concentration gradient incurred by electrochem. reactions at the electrode surfaces. This research therefore highlights the strategy of using anions of medium-strength acids, such as H₂PO₄^–, for protic ionic liquids with enhanced proton exchange capability. This study involved multiple reactions and reactants, such as 1-Hexyl-3-methyl-1H-imidazol-3-ium hydrogensulfate (cas: 478935-29-4SDS of cas: 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 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.SDS of cas: 478935-29-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Study of 5(6)-hydroxybenzimidazole aminomethylation was written by Smirnov, L. D.;Kuznetsov, Yu. V.;Stolyarova, L. G.;Lezina, V. P.. And the article was included in Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya in 1985.Reference of 101018-70-6 The following contents are mentioned in the article:

Treating benzimidazole I (R = Me, R¹ = R² = H) with N-(methoxymethyl)piperidine, -morpholine, and N,N,N‘,N‘-tetramethylmethylenediamine in alc. gave 92.7, 88.7, and 65.4% aminomethylated derivatives I (R = Me, R¹ = piperidinomethyl, morpholinomethyl, Me₂NCH₂; R² = H). Treating I (R-R² = H) with piperidine and paraformaldehyde under Mannich reaction conditions gave I (R = H, R¹ = piperidinomethyl, R² = H, piperidinomethyl). Analogously obtained was I (R = H, R¹ = R² = Me₂NCH₂). This study involved multiple reactions and reactants, such as 4-((Dimethylamino)methyl)-2-methyl-1H-benzo[d]imidazol-5-ol (cas: 101018-70-6Reference of 101018-70-6).

4-((Dimethylamino)methyl)-2-methyl-1H-benzo[d]imidazol-5-ol (cas: 101018-70-6) belongs to imidazole derivatives. Imidazole derivatives generally have good solubility in protic solvents. Simple imidazole derivatives, such as 1H-imidazole, 2-methyl-1H-imidazole, and 1,2-dimethylimidazole, have very high solubility in water. 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.Reference of 101018-70-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Thermal and kinetic studies of trialkylimidazolium salts was written by Fox, Douglas M.;Awad, Walid H.;Gilman, Jeffrey W.;Maupin, Paul H.;Trulove, Paul C.;De Long, Hugh C.. And the article was included in ACS Symposium Series in 2005.COA of Formula: C8H15F6N2P The following contents are mentioned in the article:

The thermal properties of trialkylimidazolium room temperature ionic liquids (RTILs) have been determined using a flash point apparatus and the technique of thermal gravimetric anal. (TGA). Using a Setaflash flash point analyzer, all the salts studied were found to have flash points above 200 °C. TGA was utilized to study the decomposition of imidazolium based RTILs. The effects of C-2 hydrogen substitution, structural isomerism, alkyl chain length, anion type, and purge gas type is discussed. The decomposition kinetics of 1,2-dimethyl-3-butylimidazolium hexafluorophosphate was investigated using TGA. The global kinetic model and TGA Arrhenius parameters have been determined by employing both constant heating rate and isothermal programs. This study involved multiple reactions and reactants, such as 1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 157310-73-1COA of Formula: C8H15F6N2P).

1,2-Dimethyl-3-propyl-1H-imidazol-3-ium hexafluorophosphate(V) (cas: 157310-73-1) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.COA of Formula: C8H15F6N2P

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem