Category: imidazoles-derivatives

Li, Beibei; Guo, Ruixue; Tian, Jie; Wang, Zunyao; Qu, Ruijuan published an article in 2021. The article was titled 《New Findings of Ferrate(VI) Oxidation Mechanism from Its Degradation of Alkene Imidazole Ionic Liquids》, and you may find the article in Environmental Science & Technology.HPLC of Formula: 16681-56-4 The information in the text is summarized as follows:

Chem. reactivity, kinetics, degradation pathways and mechanisms, and ecotoxicity of the oxidation of 1-vinyl-3-ethylimidazolium bromide ([VEIm]Br), the most common alternative to organic solvents, by Fe(VI) (HFeO4-) were studied by lab experiments and theor. calculations Results show that Fe(VI) can efficiently remove VEIm through the dioxygen transfer-hydrolysis mechanism, which has not been reported yet. The reactivity of VEIm toward Fe(VI) mainly depends on the double bonds in the side chain of VEIm. The second-order rate constant for VEIm was 629.45 M-1 s-1 at pH 7.0 and 25°C. Typical water constituents, except for SO32-, Cl-, and Cu2+, had no obvious effects on the oxidation The oxidation products were determined by high-performance liquid chromatog. hybrid quadrupole time-of-flight mass spectrometry, which proves that there were interactions between the oxidation intermediates of the anion and cation parts of [VEIm]Br during the degradation process. The structures of related products and oxidation mechanisms were further rationalized by theor. calculations The ecotoxicity of products from the three oxidation pathways all showed a trend of increase after the initial decrease. We hope that the findings of this work can give researchers some new inspirations on Fe(VI) degradation of other alkene-containing contaminants. After reading the article, we found that the author used 2-Bromo-1H-imidazole(cas: 16681-56-4HPLC of Formula: 16681-56-4)

2-Bromo-1H-imidazole(cas: 16681-56-4) is a member of imidazole. Its exclusive structural characteristics with enviable electron-rich features are favorable for imidazole-based fused heterocycles to bind efficiently with an array of enzymes and receptors in biological systems through various weak interactions like hydrogen bonds, ion-dipole, cation-π, π-π stacking, coordination, Van der Waals forces, hydrophobic effects, etc., and therefore they demonstrate widespread bioactivities. HPLC of Formula: 16681-56-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Sirithanakorn, Chaiyos; Cronan, John E. published their research in FEMS Microbiology Reviews in 2021. The article was titled 《Biotin, a universal and essential cofactor: synthesis, ligation and regulation》.Application of 58-85-5 The article contains the following contents:

Biotin is a covalently attached enzyme cofactor required for intermediary metabolism in all three domains of life. Several important human pathogens (e.g. Mycobacterium tuberculosis) require biotin synthesis for pathogenesis. Humans lack a biotin synthetic pathway hence bacterial biotin synthesis is a prime target for new therapeutic agents. The biotin synthetic pathway is readily divided into early and late segments. Although pimelate, a 7-carbon α,ω-dicarboxylic acid that contributes 7 of the 10 biotin carbons atoms, was long known to be a biotin precursor, its biosynthetic pathway was a mystery until the Escherichia coli pathway was discovered in 2010. Since then, diverse bacteria encode evolutionarily distinct enzymes that replace enzymes in the E. coli pathway. Two new bacterial pimelate synthesis pathways have been elucidated. In contrast to the early pathway, the late pathway, assembly of the fused rings of the cofactor, was long thought settled. However, a new enzyme that bypasses a canonical enzyme was recently discovered as well as homologs of another canonical enzyme that functions in synthesis of another protein-bound coenzyme, lipoic acid. Most bacteria tightly regulate transcription of the biotin synthetic genes in a biotin-responsive manner. The bifunctional biotin ligases which catalyze attachment of biotin to its cognate enzymes and repress biotin gene transcription are best understood regulatory system. The results came from multiple reactions, including the reaction of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Application of 58-85-5)

5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5) may be used to elute proteins from avidin/streptavidin resins. It has been used for culturing of oligodendrocytes.Application of 58-85-5 The biotin/avidin or biotin/streptavidin interaction is utilized in many labeling and purification schemes.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Hermanns, Volker; Scheurer, Maximilian; Kersten, Nils Frederik; Abdellaoui, Chahinez; Wachtveitl, Josef; Dreuw, Andreas; Heckel, Alexander published their research in Chemistry – A European Journal in 2021. The article was titled 《Rethinking Uncaging: A New Antiaromatic Photocage Driven by a Gain of Resonance Energy》.Recommanded Product: 530-62-1 The article contains the following contents:

Photoactivatable compounds for example photoswitches or photolabile protecting groups (PPGs, photocages) for spatiotemporal light control, play a crucial role in different areas of research. For each application, parameters such as the absorption spectrum, solubility in the resp. media and/or photochem. quantum yields for several competing processes need to be optimized. The design of new photochem. tools therefore remains an important task. In this study, we exploited the concept of excited-state-aromaticity, first described by N. Colin Baird in 1971, to investigate a new class of photocages, based on cyclic, ground-state-antiarom. systems. Several thio- and nitrogen-functionalized compounds were synthesized, photochem. characterized and further optimized, supported by quantum chem. calculations After choosing the optimal scaffold, which shows an excellent uncaging quantum yield of 28 %, we achieved a bathochromic shift of over 100 nm, resulting in a robust, well accessible, visible light absorbing, compact new photocage with a clean photoreaction and a high quantum product (ε·Φ) of 893 M-1 cm-1 at 405 nm. The results came from multiple reactions, including the reaction of Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Recommanded Product: 530-62-1)

Di(1H-imidazol-1-yl)methanone(cas: 530-62-1) is a peptide coupling reagent,it is used in the synthesis of peptides. Reacts readily with carboxylic acids to form acyl imidazoles; subsequent reaction with amines to form amides goes smoothly.Recommanded Product: 530-62-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Kumar, D. Sharath; Pallavi, H. S.; Pullela, Phani Kumar published their research in Asian Journal of Chemistry in 2021. The article was titled 《Detection of non-nitro compounds by amplified fluorescence polymer (AFP): an opportunity for breath-based disease diagnosis》.Synthetic Route of C21H25ClN2 The article contains the following contents:

Amplified fluorescence polymers (AFP) are a set of unique polymers known for their ability to detect trace nitro explosives. The prior knowledge in the AFP field indicates that the functional group variation on the polymer backbone is responsible for the selectivity of an analyte. The mechanism of analyte detection is believed that only compounds with nitro functional groups are detected by AFP. Usually, AFP functional groups varied to detect nitro compounds and the non-nitro compound detection and the mechanism of the AFP were not completely understood. In this work, the AFP polymer was kept constant and studied with 136 analytes with different functional groups for analyzing few non-nitro compounds Among the 136 compounds analyzed, about fourteen have been detected by AFP. It was observed that most of the fourteen compounds were non-nitro compounds The mechanism proposed originally for nitro compounds and associated hypothesises the existence of a parking space on the polymer backbone. Present study suggested that the possibility of only nitro compounds interacting with AFP due to the three-dimensional shape of the analyte as the detrimental factor. The discovery of non-nitro compound detection by AFP opens up the use of AFP for gas-phase disease volatile organic compound detection. Future studies of functional group variation on the AFP backbone in relation to the analyte detection could provide insights into the relation of analyte detection by AFP and the parameters to optimize for obtaining the selectivity and specificity. In the experiment, the researchers used 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8Synthetic Route of C21H25ClN2)

1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8) is a ligand for arylation of aldehydes and for carbene catalyzed intermolecular arylation of C-H bonds. It is used as a phosphine-free ligand in various metal-catalyzed coupling reactions, often with advantageous results in difficult cases.Synthetic Route of C21H25ClN2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Atkinson, Ariel J.; Armstrong, Mikayla D.; Eskew, John T.; Coronell, Orlando published their research in Journal of Membrane Science in 2021. The article was titled 《Aminoimidazole reduces fouling and improves membrane performance》.Reference of 1H-Imidazol-2-amine The article contains the following contents:

Biofouling is difficult to control and hinders the performance of membranes in all applications but is of particular concern when natural waters are purified. Fouling, via multiple mechanisms (organic-only, biofouling-only, cell-deposition-only, and organic + biofouling), of a com. available membrane (control) and a corresponding membrane coated with an anti-biofouling 2-aminoimidazole (2-AI membrane) was monitored and characterized during the purification of a natural water. Results show that the amount of bacterial cell deposition and organic fouling was not significantly different between control and 2-AI membranes; however, biofilm formation, concurrent or not with other fouling mechanisms, was significantly inhibited (95-98%, p < 0.001) by the 2-AI membrane. The limited biofilm that formed on the 2-AI membrane was weaker (as indicated by the polysaccharide to protein ratio) and thus presumably easier to remove. The conductivity rejection by the 2-AI and control membranes was not significantly different throughout the 75-h experiments, but the rejection of dissolved organic carbon by biofouled (biofouling-only, cell-deposition-only, and organic + biofouling) 2-AI membranes was statistically higher (10-12%, p = 0.003-0.07). When biofouled, the water permeance of the 2-AI membranes decreased significantly less (p < 0.05) over 75 h than that of the control membranes, whether or not other addnl. types of fouling occurred concurrently. Despite the initially lower water permeances of 2-AI membranes (11% lower on average than controls), the 2-AI membranes outperformed the controls (10-11% higher average water permeance) after biofilm formation occurred. Overall, 2-AI membranes fouled less than controls without detriment to water productivity and solute rejection. The experimental process involved the reaction of 1H-Imidazol-2-amine(cas: 7720-39-0Reference of 1H-Imidazol-2-amine)

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Aniline, ethanolamines, and several other amines are major industrial commodities used in making rubber, dyes, pharmaceuticals, and synthetic resins and fibres and for a host of other applications. Most of the numerous methods for the preparation of amines may be broadly divided into two groups: (1) chemical reduction (replacement of oxygen with hydrogen atoms in the molecule) of members of several other classes of organic nitrogen compounds and (2) reactions of ammonia or amines with organic compounds.Reference of 1H-Imidazol-2-amine

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Metal-Organic Frameworks Conjugated Lipase with Enhanced Bio-catalytic Activity and Stability》 was written by Zou, Bin; Zhang, Liming; Xia, Jiaojiao; Wang, Pengyun; Yan, Yan; Wang, Xinyi; Adesanya, Idowu Onyinye. Related Products of 530-62-1 And the article was included in Applied Biochemistry and Biotechnology in 2020. The article conveys some information:

Covalent immobilization of lipase onto a solid carrier is an effective way to enhance stability. Immobilization inhibits the activity of lipase due to decreased flexibility of enzyme structure via the covalent bond. In this study, monomer of the metal-organic frameworks (MOFs) material ZIF-8 (2-Me imidazole-4-carboxylic acid) was innovatively used as a chem. modifier of Candida nrugosa lipase (CRL). The CD spectra results show that the CRL mol. was altered by chem. modification and thus its catalytic activity was 1.3 times higher than that of the free CRL. The modified CRL mol. was further immobilized in the “”skeleton”” of ZIF-8 through the monomer while in situ forming the cell skeleton of the MOFs, which prevent the active center from being destroyed. The results show that conjugation of chem. modification and immobilized enzymes ensure that there was no obvious reduction in the activity of CRL after immobilization and the stability of CRL was improved. Especially, the organic solvent stability of the modified immobilization CRL in isopropanol was significantly improved and retained more than 148% of its activity.Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Related Products of 530-62-1) was used in this study.

Di(1H-imidazol-1-yl)methanone(cas: 530-62-1) is a coupling agent in the synthesis of dipolar polyamides for nonlinear optical applications and polypeptides. It also used to make β-keto sulfones and sulfoxides, lead sequestering agents, and β-enamino acid derivatives.Related Products of 530-62-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Computed Properties of C3H3BrN2In 1993 ,《QSAR’s from similarity matrices. Technique validation and application in the comparison of different similarity evaluation methods》 appeared in Journal of Medicinal Chemistry. The author of the article were Good, Andrew C.; Peterson, Stephen J.; Richards, W. Graham. The article conveys some information:

It has recently been shown that good quant. structure-activity relationships can be obtained through statistical anal. of mol. similarity matrixes. Here we extend the technique to seven addnl. mol. series, previously studied using Comparative Mol. Field Anal. (CoMFA) methodol. The results are used to confirm technique applicability across a wider range of QSAR problems and to compare quant. the ability of various similarity indexes to describe biol. systems. The relative merits of this technique in comparison to CoMFA are discussed. In addition to this study using 2-Bromo-1H-imidazole, there are many other studies that have used 2-Bromo-1H-imidazole(cas: 16681-56-4Computed Properties of C3H3BrN2) was used in this study.

2-Bromo-1H-imidazole(cas: 16681-56-4) is a member of imidazole. Its exclusive structural characteristics with enviable electron-rich features are favorable for imidazole-based fused heterocycles to bind efficiently with an array of enzymes and receptors in biological systems through various weak interactions like hydrogen bonds, ion-dipole, cation-π, π-π stacking, coordination, Van der Waals forces, hydrophobic effects, etc., and therefore they demonstrate widespread bioactivities. Computed Properties of C3H3BrN2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Synthetic Route of C7H7N3In 2020 ,《Efficient Synthesis of Pyrimido[1,2-a]Benzimidazoles and Ethyl Pyrimido[1,2-a]Benzimidazole-3-Carboxylates Using Bronsted Acidic Ionic Liquid Supported on Nanoporous Na+-Montmorillonite》 appeared in Polycyclic Aromatic Compounds. The author of the article were Makhsous, Masoumeh; Shirini, Farhad; Seddighi, Mohadeseh; Mazloumi, Masoumeh. The article conveys some information:

Nanoporous sodium montmorillonite clay (Na+-MMT) was successfully modified with 1-methyl-3-(trimethoxysilylpropyl)-imidazolium hydrogen sulfate (Na+-MMT-[pmim]HSO4). This immobilized acidic ionic liquid showed excellent catalytic activity for the synthesis of pyrimido[1,2-a]benzimidazoles and Et pyrimido[1,2-a]benzimidazole-3-carboxylates via three-component reactions between aldehydes, 2-aminobenzimidazole and malononitrile or β-dicarbonyl compounds The procedure gave the products in high yields in very short reaction times at 100° under solvent-free conditions. Also, this catalyst can be reused for five times without loss of its catalytic activity. The experimental process involved the reaction of 1H-Benzo[d]imidazol-2-amine(cas: 934-32-7Synthetic Route of C7H7N3)

1H-Benzo[d]imidazol-2-amine(cas: 934-32-7) can be used in the hydrolysis of a choline carbonate. It was also used in the synthesis of imidazo[1,2-a]benzimidazoles.Synthetic Route of C7H7N3

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

SDS of cas: 174501-65-6In 2019 ,《Nonbonding interaction analyses on PVDF/[BMIM][BF4] complex system in gas and solution phase》 appeared in Journal of Molecular Modeling. The author of the article were Sarkar, Ranjini; Kundu, T. K.. The article conveys some information:

The present study provides a detailed quantum chem. description of the physicochem. interactions between poly-vinylidene fluoride (PVDF) and 1-butyl-3-methyl-imidazolium tetrafluoro borate ([BMIM][BF4]) ionic liquid (IL). Geometry optimization and frequency calculations are carried out for four monomer units of α- and β-PVDF, [BMIM][BF4], and PVDF/[BMIM][BF4] using dispersion corrected d. functional theory. The effects of solvation on the systems under study are demonstrated for three polar aprotic solvents, namely tetra-hydrofuran (THF), acetone, and n,n-DMF (DMF) using the integral equation formalism polarizable continuum model (IEFPCM). Calculated neg. solvation free energy values suggest solution phase stability of the systems under study. Binding and interaction energies for β-PVDF/IL are found higher in magnitude than those for α-PVDF/IL. The nonbonding interaction phenomenon of β-PVDF/[BMIM][BF4] is elucidated on the basis of natural bond orbital (NBO), Bader’s quantum theory of atoms in mols. (QTAIM), delocalization indexes, Hirshfeld surface, and reduced d. gradient (RDG) analyses. Both anions and cations of ionic liquids are found to show weak van der Waals interaction with PVDF mol. but the anion ([BF4]-)/PVDF interaction is found to be stronger than cation ([BMIM]+)/PVDF interaction. Inter-unit C-H···F type hydrogen bonds are found to show improper (causing blue shifts in vibrational frequencies) nature. Frontier MO anal. is carried out, and different chem. parameters like electronegativity, chem. potential, chem. hardness and softness, and electrophilicity index are calculated using Koopmans’ theorem. Thermochem. calculations are also performed, and the variation in different standard thermodn. parameters with temperature is formulated. In addition to this study using 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate, there are many other studies that have used 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6SDS of cas: 174501-65-6) was used in this study.

3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6) is a member of lonic liquids. Actually, lonic liquids as innovative fluids have received wide attention only during the past two decades. The number of SCI papers published on lonic liquids has exponentially increased from a few in 1996 to >5000 in 2016, exceeding the annual growth rates of other popular scientific areas. SDS of cas: 174501-65-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2022,Ghanbari, Hamed; Robertson, Katherine N.; Clyburne, Jason A. C.; Soleimani, Ebrahim published an article in Canadian Journal of Chemistry. The title of the article was 《Betaine formation from the reactions of N-heterocyclic carbenes with polarized alkenes》.SDS of cas: 141556-45-8 The author mentioned the following in the article:

N-Heterocyclic carbenes, 1,3-dimesityl-2-imidazolylidene (1a, IMes) or 1,3-bis(2,6-di-isopropylphenyl)imidazolidinylidene (1b, SIPr) react with the polarized alkenes ArCH:CX2 to form the crystalline betaines NHC-CHArCX2 (3a, 3b; Ar = 4-MeOC6H4, X2 = CONMeCSNMeCO; NHC = IMes, SIPr) and IMes-CHAr1C(CN)2 (5a; Ar1 = 2-MeOC6H4). Furthermore, a one-pot reaction between an aldehyde, malononitrile, and an imidazolium salt of an N-heterocyclic carbene has been developed for the efficient preparation of betaine 5a without isolation of the free carbene. Full characterization data, including X-ray crystal structures, is reported for the three synthesized betaines. The structures of the betaines 3a, 3b, and 5a shed new light on the initial products formed in the reactions between N-heterocyclic carbenes and compounds containing polarized double bonds. In addition to this study using 1,3-Dimesityl-1H-imidazol-3-ium chloride, there are many other studies that have used 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8SDS of cas: 141556-45-8) was used in this study.

1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8) is a ligand for arylation of aldehydes and for carbene catalyzed intermolecular arylation of C-H bonds. It is used as a phosphine-free ligand in various metal-catalyzed coupling reactions, often with advantageous results in difficult cases.SDS of cas: 141556-45-8

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem