Tag: 100-200

Systematic Investigation of a Surfactant Type Nano Gemini Ionic Liquid and Simultaneous Abnormal Salt Effects on Crude Oil/Water Interfacial Tension was written by Saien, Javad;Kharazi, Mona;Yarie, Meysam;Zolfigol, Mohammad Ali. And the article was included in Industrial & Engineering Chemistry Research in 2019.Quality Control of 1-Octyl-1H-imidazole This article mentions the following:

Gemini ionic liquids (ILs) are usually known to have significant surfactant behavior. Nanomaterials, on the other hand, are capable of improving interface properties. The current study explores the use of a novel nano gemini imidazolium IL with a mol. structure of a four methylene group spacer for reducing crude oil/water interfacial tension (IFT). The gemini IL was prepared purely by a two-step synthesis method and characterized in different ways. Results revealed that IFT was drastically decreased to 97.8% in the presence of the IL and more decrease was achieved with temperature and pH variations. The high performance of the IL can be attributed to the strong IL amphiphilic nature. The salt effects in the presence of the IL were evaluated with NaCl, MgCl₂, and their mixture Results revealed more IFT reduction under salinity conditions because of a remarkable found synergism effect, unlike conventional surfactants. The findings encourage the use of seawater IL solutions in chem. enhanced oil recovery. The obtained salt-free IFT data were precisely reproduced with the well-known Frumkin adsorption isotherm, and the corresponding thermodn. parameters were obtained at different temperatures From thermodn. results, a spontaneous IL adsorption was deduced. In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Quality Control of 1-Octyl-1H-imidazole).

1-Octyl-1H-imidazole (cas: 21252-69-7) 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.Quality Control of 1-Octyl-1H-imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

(Benz-)imidazolin-2-ylidene-benzimidazolatonickel(II) Chelates: Syntheses, Structures, and Tuning of Noninnocent Chelate Ligand Behavior was written by Kureja, Kunal;Bruhn, Clemens;Ringenberg, Mark R.;Siemeling, Ulrich. And the article was included in Inorganic Chemistry in 2019.Application In Synthesis of 1-Methylbenzimidazole This article mentions the following:

The deprotonation of 1-(1H-benzimidazol-2-yl)-3-methylbenzimidazolium hexafluorophosphate (2^MeH₂[PF₆]) and 1-(1H-benzimidazol-2-yl)-3-isopropylbenzimidazolium hexafluorophosphate (2^iPrH₂[PF₆]) with potassium tert-butoxide in THF afforded the benzimidazolium-benzimidazolates 2^MeH and 2^iPrH. The “instant carbene” behavior of these conjugated mesomeric betaines was demonstrated by trapping their carbenic tautomers 2‘^MeH and 2‘^iPrH with elemental sulfur and selenium, which afforded the corresponding thio- and selenourea derivatives 2‘^MeHE and 2‘^iPrHE (E = S, Se). The treatment of 2^MeH and 2^iPrH with nickelocene furnished the nickel(II) complexes [NiCp(2‘^Me)] and [NiCp(2‘^iPr)], which contain an anionic C,N_amido-chelating NHC ligand. The electronic structure and redox behavior of the nickel(II) chelates were investigated, as well as those of the closely related chelates [NiCp(1‘^Me)] and [NiCp(1‘^iPr)] derived from the corresponding imidazolium-benzimidazolates 1^MeH and 1^iPrH. According to DFT calculations, the HOMO is located over the NiCp moiety and the 蟺 system of the chelate ligand with a large contribution from the (benz-)imidazolate moiety. Cyclic voltammetry revealed a reversible oxidation to the monocation [NiCp(L)]⁺ (E_1/2 = 0.315, 0.222, 0.396, 0.265 V vs. ferrocene/ferrocenium for L = 1‘^Me, 1‘^iPr, 2‘^Me, 2‘^iPr, resp.) in CH₂Cl₂/0.1 M n-Bu₄N[B(Ar^F)₄] (B(Ar^F)₄^– = tetrakis(3,5-bis(trifluoromethyl)phenyl)borate), and isosbestic behavior was found in UV-vis-NIR spectroelectrochem. experiments The different redox potentials reflect the different donor/acceptor properties of the NHC part of the chelate ligands, with 1′^iPr being the strongest and 2‘^Me the weakest net electron donor. The EPR spectroscopic signature of [NiCp(2′^Me)]⁺ in CH₂Cl₂/0.1 M n-Bu₄N[B(Ar^F)₄] at 100 K is consistent with a chelate-ligand-based radical with strong spin-orbit coupling to the Ni center. In contrast, the EPR spectra of [NiCp(1‘^Me)]⁺, [NiCp(1‘^iPr)]⁺, and [NiCp(2‘^iPr)]⁺ indicate that these monocations are best described as Ni^III complexes, the comparatively higher contribution of the Ni^III(L) vs. the Ni^II(L^鈥?) valence tautomer being supported by the results of open-shell DFT calculations C,N_amido-nickel(II) chelates [NiCp(L)] containing (benz-)imidazolin-2-ylidene-benzimidazolate ligands (L) are reversibly oxidized to [NiCp(L)]⁺. The [NiCp(L)] HOMO and [NiCp(L)]⁺ SOMO are delocalized over the NiCp unit and the (benz-)imidazolate moiety of L. The chelate ligand L can support the unusual oxidation state Ni^III. Its noninnocent behavior may be tuned by the N substituent and the backbone of its NHC part, the carbene’s substitution pattern thus determining the relative contribution of the Ni^III(L) vs. the Ni^II(L^鈥?) valence tautomer of [NiCp(L)]⁺. In the experiment, the researchers used many compounds, for example, 1-Methylbenzimidazole (cas: 1632-83-3Application In Synthesis of 1-Methylbenzimidazole).

1-Methylbenzimidazole (cas: 1632-83-3) 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.Application In Synthesis of 1-Methylbenzimidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Ragi (finger millet) starch-based gel electrolytes for dye-sensitized solar cell application was written by Yogananda, K. C.;Ramasamy, Easwaramoorthi;Vasantha Kumar, S.;Rangappa, Dinesh. And the article was included in Bulletin of Materials Science in 2021.Application of 1632-83-3 This article mentions the following:

Starch was isolated from ragi grains using alkali extraction method. Crystallinity of isolated ragi starch (RGS) was studied using X-ray diffraction technique, and thermal properties of RGS were characterized by differential scanning calorimetry. Novel ragi starch (RGS) based gel electrolyte for dye-sensitized solar cells (DSSCs) was prepared and characterized for the first time. In the first part, the effects of additives guanidinium thiocyanate (GSCN) and N-methylbenzimidazole (NMBI) on the photovoltaic performance of DSSC were investigated. Considerable improvement of open circuit voltage was found in the addition of only NMBI to the electrolyte, while only addition of GSCN has an influence on the short circuit current. Synergetic effects were observed when NMBI and GSCN were used together in the gel electrolyte. In the second part, various weight percentages of multiwalled carbon nanotubes (MWCNTs) were added to observe the cell performance. DSSCs fabricated with the optimum weight percentage (1 wt%) of MWCNT achieved a maximum conversion efficiency of 4.34%, an open circuit voltage (V_oc) of 0.803 V, short circuit c.d. (J_sc) of 9.54 mA cm^-2 and fill factor (FF) of 56.59%. Here we reported the novel ragi starch-based gel electrolytes for DSSC application along with the effect of different additives, such as GSCN, NMBI, and various weight percentages of MWCNTs incorporated into the gel electrolyte. In the experiment, the researchers used many compounds, for example, 1-Methylbenzimidazole (cas: 1632-83-3Application of 1632-83-3).

1-Methylbenzimidazole (cas: 1632-83-3) 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 also acts as a microtubule destabilizing agents and inhibits topoisomerase and Cytochrome P450 Family 26 Subfamily A Member 1 (CYP26A1) enzymes.Application of 1632-83-3

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Vascular action of some imidazoles was written by Loeper, M.;Mougeot, A.;Aubertot, R.. And the article was included in Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales in 1934.SDS of cas: 26832-08-6 This article mentions the following:

The action of 4-methylimidazole, 4-methoxyimidazole, imidazole-4-formamide and diarabinotetrahydroxybutylimidazole on snail hearts, isolated arteries and live dogs was studied. The first 2 are hypertensive. Similar experiments by others with various imidazole derivatives are reviewed. In the experiment, the researchers used many compounds, for example, 1H-Imidazole-4-carboxamide (cas: 26832-08-6SDS of cas: 26832-08-6).

1H-Imidazole-4-carboxamide (cas: 26832-08-6) 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. Many drugs contain an imidazole ring, such as certain antifungal drugs, the nitroimidazole series of antibiotics, and the sedative midazolam.SDS of cas: 26832-08-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Halogenated (acylamino)imidazoles and benzimidazoles for directed halogen-metal exchange-based functionalization was written by Groziak, Michael P.;Ding, Hong. And the article was included in Acta Chimica Slovenica in 2000.Electric Literature of C4H5N3O2 This article mentions the following:

Regioselective syntheses of 4- and 5-(acylamino)-1-alkylimidazoles bearing an ortho-halogen atom have been developed. Suitable for use in ortho-directed halogen-metal exchange-mediated ring functionalizations, these compounds are valuable precursors to ortho-functionalized versions of biol. active 4- and 5-aminoimidazoles. To widen the scope of this approach to cover similarly-substituted benzimidazoles and their potentially bioactive nucleosides, the synthesis of halogenated 5- and 6-(acylamino)-benzimidazoles and their ribosides was also explored. In the experiment, the researchers used many compounds, for example, 1-Methyl-4-nitroimidazole (cas: 3034-41-1Electric Literature of C4H5N3O2).

1-Methyl-4-nitroimidazole (cas: 3034-41-1) 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. 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. Electric Literature of C4H5N3O2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Ultrasound promoted expeditious, catalyst-free and solvent-free approach for the synthesis of N,N’-diaryl-substituted formamidines at room temperature was written by Dar, Bashir Ahmad;Ahmad, Syed Naseer;Wagay, Mohammad Arif;Hussain, Altaf;Ahmad, Nisar;Bhat, Khursheed Ahmad;Khuroo, Mohammad Akbar;Sharma, Meena;Singh, Baldev. And the article was included in Tetrahedron Letters in 2013.Name: 7-Methyl-1H-benzo[d]imidazole This article mentions the following:

An effortless and efficient protocol was developed for the synthesis of N,N’-diaryl formamidines by three-component condensation of primary aromatic amines with HC(OEt)₃ under environment-friendly conditions. Ultrasonic energy was employed to obtain the desired products in excellent yields with high purity under solvent-free and catalyst-free conditions. Products were purified by crystallization to avoid excess utilization of organic solvents. In the experiment, the researchers used many compounds, for example, 7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6Name: 7-Methyl-1H-benzo[d]imidazole).

7-Methyl-1H-benzo[d]imidazole (cas: 4887-83-6) belongs to imidazole derivatives. Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. 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.Name: 7-Methyl-1H-benzo[d]imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Molecular-orbital and structural descriptors in theoretical investigation of electroreduction of nitrodiazoles was written by Kolaric, Branko;Juranic, Ivan;Dumanovic, Dragica. And the article was included in Journal of the Serbian Chemical Society in 2005.SDS of cas: 3034-41-1 This article mentions the following:

It is shown how a simple theor. approach can be used for the investigation of electro-organic reactions. Mononitroimidazoles and mononitropyrazoles were studied by the semiempirical MNDO-PM3 MO method. The electrochem. reduction potentials of diazoles have been correlated with the energy of the LUMO. It was found that an admirable correlation could be obtained by the introduction of simple structural descriptors as a correction to the energy of the LUMO. The interaction of a mol. with its surrounding depends on electrostatic potential and on steric hindrance. Most of these steric effects are taken into account using two parameters having a very limited set of integer values. The first (尾) is the position of a ring substituent regarding ring nitrogens, which accounts for the different orientations of dipole moments and for the different shape of the electrostatic potential. The second (structural) parameter (蟿) is the type of the ring, which accounts mostly for different modes of electrode approach, and for different charge polarization patterns in two diazole rings. The extended correlation with E_LUMO, 尾 and 蟿, is very good, having a regression coefficient r = 0.991. The intrinsic importance of 尾 and 蟿 is exemplified by their high statistical weight In the experiment, the researchers used many compounds, for example, 1-Methyl-4-nitroimidazole (cas: 3034-41-1SDS of cas: 3034-41-1).

1-Methyl-4-nitroimidazole (cas: 3034-41-1) 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 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: 3034-41-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Structure of protic (HC_nImNTf₂, n = 0-12) and aprotic (C₁C_nImNTf₂, n = 1-12) imidazolium ionic liquids: A vibrational spectroscopic study was written by Moschovi, Anastasia Maria;Dracopoulos, Vassileios. And the article was included in Journal of Molecular Liquids in 2015.Synthetic Route of C11H20N2 This article mentions the following:

The interactions of alkyl substituted imidazolium bis(trifluoromethanesulfonyl)imide protic (PILs) HC_nImNTf₂ (n = 0-12) and aprotic ionic liquids (APILs) C₁C_nNTf₂ (n = 1-12) were studied using vibrational spectroscopy (FT-IR/ATR and FT-Raman). The effect of alkyl substituent length (n = 0-12) on both polar and non-polar regions is elucidated. A sponge like structure is proposed for both systems. The spectral characteristics show that there are certain structural differences between PILs and APILs. The well defined hydrogen bonding in PILs strongly affects the local structure of both the polar head (i.e., induction effect) and the side alkyl chain. The spectral findings tentatively suggest that nanosegregation occurs at shorter alkyl chains. In APILs the data correlated with the polar and non-polar regions are discussed on the basis of the proposed sponge like structure. The trans/cis ratio of the anion conformers is related to the dispersion of the average position of the anion over the cation. Also in the oily phase the local structure of the side chain shows certain differences compared to PIL systems. A tail coupling occurred (up to eight carbon atom alkyls) followed by decoupling in higher length tails in APILs indicating an increase of van der Waals forces between the chains. Moreover, we show that the enthalpy of conformational isomerism of the anion is also a good indicator in the case of APILs, regarding the relative magnitude of these interactions. In the experiment, the researchers used many compounds, for example, 1-Octyl-1H-imidazole (cas: 21252-69-7Synthetic Route of C11H20N2).

1-Octyl-1H-imidazole (cas: 21252-69-7) 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 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.Synthetic Route of C11H20N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Collagen/cellulose hydrogel beads reconstituted from ionic liquid solution for Cu(II) adsorption was written by Wang, Jilei;Wei, Ligang;Ma, Yingchong;Li, Kunlan;Li, Minghui;Yu, Yachen;Wang, Lei;Qiu, Huihui. And the article was included in Carbohydrate Polymers in 2013.Recommanded Product: 35487-17-3 This article mentions the following:

A novel adsorbent, biodegradable collagen/cellulose hydrogel beads (CCHBs), was prepared by reconstitution from a 1-Bu, 3-methylimidazolium chloride ([C₄mim]Cl) solution The adsorption properties of the CCHBs for Cu(II) ion removal from aqueous solutions were investigated and compared with those of cellulose hydrogel beads (CHBs). The CCHBs have a three-dimensional macroporous structure whose amino groups are believed to be the main active binding sites of Cu(II) ions. The equilibrium adsorption capacity (q_e) of the CCHBs is greatly influenced by the collagen/cellulose mass ratio, and steeply increases until the collagen/cellulose mass ratio exceeds 2/1. The maximum adsorption is obtained at pH 6. The q_e of Cu(II) ions increases with increased initial concentration of the solution Based on Langmuir isotherms, the maximum adsorption capacity (q_m) of CCHB3 (collagen/cellulose mass ratio of 3/1) is 1.06 mmol/g. The CCHBs maintain good adsorption properties after the fourth cycle of adsorption-desorption. In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3Recommanded Product: 35487-17-3).

1-Methyl-1H-imidazol-3-ium chloride (cas: 35487-17-3) 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鈥揅6) is higher than in water and generally decreases with a Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.Recommanded Product: 35487-17-3

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Design, synthesis, and biological evaluation of 1,9-diheteroarylnona-1,3,6,8-tetraen-5-ones as a new class of anti-prostate cancer agents was written by Zhang, Xiaojie;Wang, Rubing;Perez, German Ruiz;Chen, Guanglin;Zhang, Qiang;Zheng, Shilong;Wang, Guangdi;Chen, Qiao-Hong. And the article was included in Bioorganic & Medicinal Chemistry in 2016.Safety of 1-Methyl-1H-benzo[d]imidazole-2-carbaldehyde This article mentions the following:

In search of more effective chemotherapeutics for the treatment of castration-resistant prostate cancer and inspired by curcumin analogs, twenty five (1E,3E,6E,8E)-1,9-diarylnona-1,3,6,8-tetraen-5-ones bearing two identical terminal heteroaromatic rings have been successfully synthesized through Wittig reaction followed by Horner-Wadsworth-Emmons reaction. Twenty-three of them are new compounds The WST-1 cell proliferation assay was employed to assess their antiproliferative effects toward both androgen-sensitive and androgen-insensitive human prostate cancer cell lines. Eighteen out of twenty-five synthesized compounds possess significantly improved potency as compared with curcumin. The optimal compound, I, is 14- to 23-fold more potent than curcumin in inhibiting prostate cancer cell proliferation. It can be concluded from the data that 1,9-diarylnona-1,3,6,8-tetraen-5-one can serve as a new potential scaffold for the development of antiprostate cancer agents and that pyridine-4-yls and quinolin-4-yl act as optimal heteroaromatic rings for the enhanced potency of this scaffold. Two of the most potent compounds, II and III, effectively suppress PC-3 cell proliferation by activating cell apoptosis and by arresting cell cycle in the G₀/G₁ phase. In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-benzo[d]imidazole-2-carbaldehyde (cas: 3012-80-4Safety of 1-Methyl-1H-benzo[d]imidazole-2-carbaldehyde).

1-Methyl-1H-benzo[d]imidazole-2-carbaldehyde (cas: 3012-80-4) 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鈥揅6) is higher than in water and generally decreases with a Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.Safety of 1-Methyl-1H-benzo[d]imidazole-2-carbaldehyde

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem