Category: imidazoles-derivatives

Category: imidazoles-derivativesIn 2019 ,《Green, effective and chromatography free synthesis of benzoimidazo[1,2-a]pyrimidine and tetrahydrobenzo [4,5]imidazo [1,2-d]quinazolin-1(2H)-one and their pyrazolyl moiety using Fe3O4@SiO2@L-proline reusable catalyst in aqueous media》 appeared in Journal of Organometallic Chemistry. The author of the article were Fekri, Leila Zare; Nikpassand, Mohammad; Khakshoor, Samira Nazari. The article conveys some information:

L-proline-functionalized silica-coated Fe3O4 nanoparticle was synthesized and characterized using Fourier Transform IR spectroscopy, X-ray diffraction, field emission SEM, transmission electron microscopy, energy dispersive X-ray spectroscopy, thermogravimetric anal., Zeta potential and a vibrating sample magnetometer. The Fe3O4@SiO2@L-proline nanoparticles in aqueous media were used as a green avenue for the mild and efficient multicomponent synthesis of new derivatives of benzoimidazo[1,2-a]pyrimidines and tetrahydrobenzo[4,5]imidazo-[1,2-d]quinazolin-1(2H)-ones in excellent yields. Furthermore, the recovery and reuse of the catalyst was demonstrated 10 times without a detectable loss in activity. Eco-friendliness, high purity of the desired products, short reaction time and easy workup was mentioned as the other advantages of this method. The results came from multiple reactions, including the reaction of 1H-Benzo[d]imidazol-2-amine(cas: 934-32-7Category: imidazoles-derivatives)

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.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Electric Literature of C7H7N3In 2020 ,《Copper-Catalyzed Synthesis of Trinuclear N-Fused Hybrid Scaffolds by Double C(sp2)-N Bond Formation between 2-(2-Bromoaryl)indoles and 2-Aminoazoles》 appeared in European Journal of Organic Chemistry. The author of the article were Diep, Thi Duyen; Pham, Duy Quang Dao; Ho, Son Long; Cho, Chan Sik. The article conveys some information:

2-(2-Bromoaryl)indoles react with 2-aminoazoles by microwave irradiation in DMF in the presence of a catalytic amount of CuI and a base to produce trinuclear N-fused hybrid scaffolds, benzo[4,5]imidazo[1,2-a]indolo[1,2-c]quinazolines and imidazo[1,2-a]indolo[1,2-c]quinazolines in moderate to good yields [e.g., 2-(2-bromophenyl)indole + 2-aminobenzimidazole → I (74%) in presence of CuI and K3PO4 in DMF]. The reaction seems to proceed via copper-catalyzed C(sp2)-N coupling and subsequent intramol. cyclocondensation accompanied by ammonia evolution. Complete regioselective C-N cyclization is observed with the reaction of 2-(2-bromophenyl)indole with 2-aminoazoles. In the part of experimental materials, we found many familiar compounds, such as 1H-Benzo[d]imidazol-2-amine(cas: 934-32-7Electric Literature 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.Electric Literature of C7H7N3

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Recommanded Product: 58-85-5In 2020 ,《Biotin synthesis in Ralstonia eutropha H16 utilizes pimeloyl coenzyme A and can be regulated by the amount of acceptor protein》 appeared in Applied and Environmental Microbiology. The author of the article were Eggers, Jessica; Strittmatter, Carl Simon; Kuesters, Kira; Biller, Emre; Steinbuechel, Alexander. The article conveys some information:

The biotin metabolism of the Gram-neg. facultative chemolithoautotrophic bacterium Ralstonia eutropha (syn. Cupriavidus necator), which is used for biopolymer production in industry, was investigated. A biotin auxotroph mutant lacking bioF was generated, and biotin depletion in the cells and the minimal biotin demand of a biotin-auxotrophic R. eutropha strain were determined Three consecutive cultivations in biotin-free medium were necessary to prevent growth of the auxotrophic mutant, and 40 ng/mL biotin was sufficient to promote cell growth. Nevertheless, 200 ng/mL biotin was necessary to ensure growth comparable to that of the wild type, which is similar to the demand of biotin-auxotrophic mutants among other prokaryotic and eukaryotic microbes. A phenotypic complementation of the R. eutropha ΔbioF mutant was only achieved by homologous expression of bioF of R. eutropha or heterologous expression of bioF of Bacillus subtilis but not by bioF of Escherichia coli. Together with the results from bioinformatic anal. of BioFs, this leads to the assumption that the intermediate of biotin synthesis in R. eutropha is pimeloyl-CoA instead of pimeloyl-acyl carrier protein (ACP) like in the Gram-pos. B. subtilis. Internal biotin content was enhanced by homologous expression of accB, whereas homologous expression of accB and accC2 in combination led to decreased biotin concentrations in the cells. Although a DNA-binding domain of the regulator protein BirA is missing, biotin synthesis seemed to be influenced by the amount of acceptor protein present. The experimental part of the paper was very detailed, including the reaction process of 5-((3aS,4S,6aR)-2-Oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl)pentanoic acid(cas: 58-85-5Recommanded Product: 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.Recommanded Product: 58-85-5 And it has been used as a vitamin supplement for the growth of Bacillus species.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Reference of 1H-Imidazol-2-amineIn 2021 ,《Synthesis and molecular docking of some new 3,5-bis-(diazepine, pyrazolopyrimidine, pyrimidine, and pyrazole) pyridine derivatives and their in vitro and in vivo biological evaluation as potential antitumor agents》 appeared in Journal of Heterocyclic Chemistry. The author of the article were Soliman, Nanees N.; Tag, Yasmin M.; Bayoumy, Nesma M.. The article conveys some information:

Dihydropyridine-containing bisenaminone I was used to synthesize new heterocyclic compounds containing nitrogen moieties, such as II (R = H, Me, Ph, H2N, 6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl) by reaction with different bifunctional reagents. Moreover, the new compounds were screened in vitro as antitumor agents for Ehrlich ascites at different concentrations The results showed that selected compounds such as II (R = H) had good activity. In addition the mol. docking of these mentioned compounds was studied using vascular endothelial growth factor receptor. In addition to this study using 1H-Imidazol-2-amine, there are many other studies that have used 1H-Imidazol-2-amine(cas: 7720-39-0Reference of 1H-Imidazol-2-amine) was used in this study.

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Amines can be classified according to the nature and number of substituents on nitrogen. Aliphatic amines contain only H and alkyl substituents. Aromatic amines have the nitrogen atom connected to an aromatic ring.Important amines include amino acids, biogenic amines, trimethylamine, and aniline. Inorganic derivatives of ammonia are also called amines, such as monochloramine (NClH2).Reference of 1H-Imidazol-2-amine

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Related Products of 174501-65-6In 2019 ,《Understanding the Properties of Ionic Liquids: Electrostatics, Structure Factors, and Their Sum Rules》 appeared in Journal of Physical Chemistry B. The author of the article were McDaniel, Jesse G.; Yethiraj, Arun. The article conveys some information:

The properties of room-temperature ionic liquids (ILs) may be viewed as resulting from a balance of electrostatic interactions that can be tuned at short range but constrained to satisfy universal, asymptotic screening conditions. Short-range interactions and ion packing provide ample opportunity for chem. tunability, while asymptotic sum rules dictate that the long-range structure and charge oscillation be similar to those of molten alkali halide salts. In this work, we study the structure factors and long-range electrostatic interactions in six ILs. The cation in all cases is 1-butyl-3-methylimidazolium (BMIM+), and we study six anions, namely, tetrafluoroborate (BF4-), hexafluorophosphate (PF6-), nitrate (NO3-), triflate (CF3SO3-), bisfluorosulfonylimide [(FSO2)2N-], and bistriflimide [(CF3SO2)2N-]. To gain insight, we perform similar computer simulations of a primitive molten salt model with and without electronic polarization. We emphasize universal similarities among ionic liquids and molten salts in the long-range ion ordering and the influence of electronic polarization on the screening conditions while also characterizing important differences in the short-range electrostatic interactions. We show that polarization systematically reduces charge oscillations by as much as ∼0.5-1 ion per radial shell, which we argue is general to all room-temperature ILs as well as molten salts. We suggest that a fundamentally important distinction among BMIM-based ionic liquids (with different anions) is the nature of the midrange, ∼1 Å-1 peak in the charge-correlation structure factor; while this correlation is straightforward to analyze in computer simulations, it may often be hidden in x-ray and/or neutron scattering structure factors. The experimental process involved the reaction of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Related Products of 174501-65-6)

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. Related Products of 174501-65-6

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Zhang, Zhi-Mao; Xu, Yu-Ting; Shao, Li-Xiong published an article in 2021. The article was titled 《Synthesis of N-heterocyclic carbene-Pd(II)-5-phenyloxazole complexes and initial studies of their catalytic activity toward the Buchwald-Hartwig amination of aryl chlorides》, and you may find the article in Journal of Organometallic Chemistry.Category: imidazoles-derivatives The information in the text is summarized as follows:

Three new N-heterocyclic carbene (NHC)-Pd(II) complexes using 5-phenyloxazole as the ancillary ligand was obtained in moderate to good yields by a one-pot reaction of the corresponding imidazolium salts, palladium chloride and 5-phenyloxazole under mild conditions. Initial studies showed that one of the complexes was an efficient catalyst for the Buchwald-Hartwig amination of aryl chlorides with various secondary and primary amines under the varied catalyst loading of 0.01-0.05 mol%, thus it will enriched the chem. of NHCs and gave an alternative catalyst for the coupling of challenging while cost-low aryl chlorides. The experimental part of the paper was very detailed, including the reaction process of 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8Category: imidazoles-derivatives)

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.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Mandal, Tanmoy; Yadav, Sudha; Choudhury, Joyanta published their research in Journal of Organometallic Chemistry in 2021. The article was titled 《Steric effect of NHC ligands in Pd(II)-NHC-catalyzed non-directed C-H acetoxylation of simple arenes》.Application In Synthesis of 1,3-Dimesityl-1H-imidazol-3-ium chloride The article contains the following contents:

Herein, a series of well-defined discrete [Pd(NHCRR1)(py)I2] complexes I [R = Me, Cy, n-Bu, Mes; R1 = Me, Cy, n-Bu, Mes, t-Bu, Ph; RR1 = Me, Cy, n-Bu, Mes] with systematically varied degree of spatial congestion at the Pd center, exerted through the R and R1 substituents on the NHC ligand, were explored in controlling the activity as well as the site-selectivity of non-directed acetoxylation of representative monosubstituted and disubstituted simple arenes (such as toluene, iodobenzene and bromobenzene, naphthalene and 1,2-dichlorobenzene). The resulting best yields were found to be 75% for toluene and 65% for bromobenzene with [Pd(NHCPhMe)(py)I2], 75% for iodobenzene and 79% for naphthalene with [Pd(NHCMeMe)(py)I2], and 41% for 1,2-dichlorobenzene with [Pd(NHCCyCy)(py)I2]. Most importantly, with increasing the bulkiness of the NHC ligand in the complexes, the selectivity of the distal C-acetoxylated products in comparison to the proximal ones, was enhanced to a great extent in all cases. Considering the vast library of NHC ligands, this study underscores the future opportunity to develop more strategies to improve the activity and the crucial site-selectivity of C-H functionalization reactions in simple as well as complex organic mols. The experimental part of the paper was very detailed, including the reaction process of 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8Application In Synthesis of 1,3-Dimesityl-1H-imidazol-3-ium chloride)

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.Application In Synthesis of 1,3-Dimesityl-1H-imidazol-3-ium chloride

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Bay, Anna V.; Fitzpatrick, Keegan P.; Gonzalez-Montiel, Gisela A.; Farah, Abdikani Omar; Cheong, Paul Ha-Yeon; Scheidt, Karl A. published their research in Angewandte Chemie, International Edition in 2021. The article was titled 《Light-Driven Carbene Catalysis for the Synthesis of Aliphatic and α-Amino Ketones》.HPLC of Formula: 530-62-1 The article contains the following contents:

Single-electron N-heterocyclic carbene (NHC) catalysis has gained attention recently for the synthesis of C-C bonds. Guided by d. functional theory and mechanistic analyses, authors report the light-driven synthesis of aliphatic and α-amino ketones using single-electron NHC operators. Computational and exptl. results reveal that the reactivity of the key radical intermediate is substrate-dependent and can be modulated through steric and electronic parameters of the NHC. Catalyst potential is harnessed in the visible-light driven generation of an acyl azolium radical species that underwent selective coupling with various radical partners to afford diverse ketone products. This methodol. is showcased in the direct late-stage functionalization of amino acids and pharmaceutical compounds, highlighting the utility of single-electron NHC operators. In the experiment, the researchers used many compounds, for example, Di(1H-imidazol-1-yl)methanone(cas: 530-62-1HPLC of Formula: 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.HPLC of Formula: 530-62-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Combined Photoredox and Carbene Catalysis for the Synthesis of Ketones from Carboxylic Acids》 was written by Bay, Anna V.; Fitzpatrick, Keegan P.; Betori, Rick C.; Scheidt, Karl A.. Application of 530-62-1 And the article was included in Angewandte Chemie, International Edition in 2020. The article conveys some information:

As a key element in the construction of complex organic scaffolds, the formation of C-C bonds remains a challenge in the field of synthetic organic chem. Recent advancements in single-electron chem. have enabled new methods for the formation of various C-C bonds. Disclosed herein is the development of a novel single-electron reduction of acyl azoliums for the formation of ketones from carboxylic acids. Facile construction of the acyl azolium in situ followed by a radical-radical coupling was made possible merging N-heterocyclic carbene (NHC) and photoredox catalysis. The utility of this protocol in synthesis was showcased in the late-stage functionalization of a variety of pharmaceutical compounds Preliminary studies using chiral NHCs demonstrate that enantioselectivity can be achieved, showcasing the advantages of this protocol over alternative methodologies. The experimental process involved the reaction of Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Application of 530-62-1)

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.Application of 530-62-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Enantioselective Twofold C-H Annulation of Formamides and Alkynes without Built-in Chelating Groups》 was written by Chen, Hao; Wang, Yin-Xia; Luan, Yu-Xin; Ye, Mengchun. SDS of cas: 141556-45-8 And the article was included in Angewandte Chemie, International Edition in 2020. The article conveys some information:

Twofold C-H annulation of readily available formamides and alkynes without built-in chelating groups was achieved. Ni-Al bimetallic catalysis enabled by a bulky BINOL-derived chiral secondary phosphine oxide (SPO) ligand proved to be critical for high reactivity and high selectivity. This reaction uses readily available formamides as starting materials and provides a concise synthetic pathway to a broad range of chiral ferrocenes in 40-98% yield and 93-99% ee. After reading the article, we found that the author used 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8SDS of cas: 141556-45-8)

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