Category: imidazoles-derivatives

《Simple Synthetic Routes to Carbene-M-Amido (M = Cu, Ag, Au) Complexes for Luminescence and Photocatalysis Applications》 was written by Tzouras, Nikolaos V.; Martynova, Ekaterina A.; Ma, Xinyuan; Scattolin, Thomas; Hupp, Benjamin; Busen, Hendrik; Saab, Marina; Zhang, Ziyun; Falivene, Laura; Pisano, Gianmarco; Van Hecke, Kristof; Cavallo, Luigi; Cazin, Catherine S. J.; Steffen, Andreas; Nolan, Steven P.. Recommanded Product: Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I) And the article was included in Chemistry – A European Journal on August 16 ,2021. The article conveys some information:

The development of novel and operationally simple synthetic routes to carbene-metal-amido (CMA) complexes [(NHC)M(Cbz)] (NHC = substituted 2-imidazolylidene; HCbz = 9H-carbazole; M = Cu, Ag, Au) of copper, silver and gold relevant for photonic applications are reported. A mild base and sustainable solvents allow all reactions to be conducted in air and at room temperature, leading to high yields of the targeted compounds even on multigram scales. The effect of various mild bases on the N-H metalation was studied in silico and exptl., while a mechanochem., solvent-free synthetic approach was also developed. Our photophys. studies on [M(NHC)(Cbz)] indicate that the occurrence of fluorescent or phosphorescent states is determined primarily by the metal, providing control over the excited state properties. Consequently, we demonstrate the potential of the new CMAs beyond luminescence applications by employing a selected CMA as a photocatalyst. The exemplified synthetic ease is expected to accelerate the applications of CMAs in photocatalysis and materials chem. After reading the article, we found that the author used Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I)(cas: 852445-84-2Recommanded Product: Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I))

Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I)(cas: 852445-84-2) belongs to imidazoles.Imidazole rings are part of unnatural cyclic peptides and are used as ester isosteres in peptidomimetic studies.
However, the application of imidazoles is not limited to the field of peptides and peptidomimetics. Recommanded Product: Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I)

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Xiao, Junzhe; Cui, Yifan; Li, Can; Xu, Haibo; Zhai, Yizhan; Zhang, Xue; Ma, Shengming published their research in Angewandte Chemie, International Edition on December 1 ,2021. The article was titled 《Room Temperature Allenation of Terminal Alkynes with Aldehydes》.Computed Properties of C27H39ClN2 The article contains the following contents:

A gold-catalyzed room temperature allenation of terminal alkynes (ATA) with aldehydes affording 1,3-disubstituted allenes with diverse functional groups was developed by identifying a gold(I) catalyst and an amine. The practicality of this reaction had been demonstrated by a ten gram-scale synthesis and the synthetic potentials have been demonstrated via various transformations and formal total synthesis of (-)-centrolobine. Mechanistic studies revealed that the gold catalyst, the aldehyde effect, the fluoroalkyl hydroxyl solvent (TFE or HFIP) and the structure of amine were vital in this room temperature ATA reaction. In the experimental materials used by the author, we found 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride(cas: 258278-25-0Computed Properties of C27H39ClN2)

1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride(cas: 258278-25-0) has been employed in an efficient, one-pot synthesis of N-heterocyclic carbene-allylpalladium complexes.Computed Properties of C27H39ClN2In addition, it can efficiently catalyze the Suzuki-Miyaura coupling of aryl chlorides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2003,Australian Journal of Chemistry included an article by Indusegaram, Sutharsiny; Katsifis, Andrew G.; Ridley, Damon D.; Vonwiller, Simone C.. Formula: C10H12N2O. The article was titled 《Nitrogen versus Oxygen Group Protection in Hydroxypropylbenzimidazoles》. The information in the text is summarized as follows:

In order to convert 1’H-benzimidazol-2′-yl-propanols into aryl ethers using Mitsunobu coupling, it was necessary to protect the benzimidazole nitrogen in the starting alcs. Selective protection at nitrogen was achieved through N-benzyl derivatives, but attempts to protect the nitrogen directly through tert-butoxycarbonyl, acetyl, trityl, or tetrahydropyranyl derivatives were complicated either by selective reactions at oxygen or by the formation of bis-protected compounds Transformations of some oxygen-protected derivatives are discussed, and in particular the conversion of the acetates of 1’H-benzimidazol-2′-yl-propanols to N-tetrahydropyranyl derivatives is described. Mitsunobu coupling involving the N-benzyl and N-tetrahydropyranyl derivatives and Me 4-hydroxybenzoate were achieved, and thus afforded synthetic routes to the desired propylbenzimidazole aryl ethers. The experimental part of the paper was very detailed, including the reaction process of 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol(cas: 2403-66-9Formula: C10H12N2O)

3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol(cas: 2403-66-9) belongs to imidazoles.Imidazole rings are part of unnatural cyclic peptides and are used as ester isosteres in peptidomimetic studies.
Formula: C10H12N2O However, the application of imidazoles is not limited to the field of peptides and peptidomimetics.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Ni(COD)(DQ): An Air-Stable 18-Electron Nickel(0)-Olefin Precatalyst》 was written by Tran, Van T.; Li, Zi-Qi; Apolinar, Omar; Derosa, Joseph; Joannou, Matthew V.; Wisniewski, Steven R.; Eastgate, Martin D.; Engle, Keary M.. Related Products of 258278-25-0 And the article was included in Angewandte Chemie, International Edition on April 27 ,2020. The article conveys some information:

We report that Ni(COD)(DQ) (COD = 1,5-cyclooctadiene, DQ = duroquinone), an air-stable 18-electron complex originally described by Schrauzer in 1962, is a competent precatalyst for a variety of nickel-catalyzed synthetic methods from the literature. Due to its apparent stability, use of Ni(COD)(DQ) as a precatalyst allows reactions to be conveniently performed without use of an inert-atm. glovebox, as demonstrated across several case studies. The experimental process involved the reaction of 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride(cas: 258278-25-0Related Products of 258278-25-0)

1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride(cas: 258278-25-0) may be used as a precursor to the free carbene 1,3-bis(2,6-diisopropylphenyl)-2-imidazolidinylidene, and also used as an in situ formed catalyst in a variety of reactions, e.g. amination, Heck coupling reaction, the ring-opening metathesis polymerization (ROMP), hydrogenation.Related Products of 258278-25-0In addition, it can efficiently catalyze the Suzuki-Miyaura coupling of aryl chlorides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Product Details of 530-62-1In 2022 ,《Supramolecular self-associating amphiphiles: determination of molecular self-association properties and calculation of critical micelle concentration using a high-throughput, optical density based methodology》 was published in Organic & Biomolecular Chemistry. The article was written by Rutkauskaite, Andzelika; White, Lisa J.; Hilton, Kira L. F.; Picci, Giacomo; Croucher, Lorraine; Caltagirone, Claudia; Hiscock, Jennifer R.. The article contains the following contents:

Supramol. self-associating amphiphiles are a class of amphiphilic salt, the anionic component of which is ′frustrated′ in nature, meaning multiple hydrogen bonding modes can be accessed simultaneously. Here we derive critical micelle concentration values for four supramol. self-associating amphiphiles using the standard pendant drop approach and present a new high-throughput, optical d. measurement based methodol., to enable the estimation of critical micelle concentrations over multiple temperatures In addition, we characterize the low-level hydrogen bonded self-association events in the solid state, through single crystal X-ray diffraction, and in polar organic DMSO-d6 solutions using a combination of 1H NMR techniques. Moving into aqueous ethanol solutions (EtOH/H2O or EtOH/D2O (1 : 19 volume/volume)), we also show these amphiphilic compounds to form higher-order self-associated species through a combination of 1H NMR, dynamic light scattering and zeta potential studies. In the experimental materials used by the author, we found Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Product Details 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.Product Details of 530-62-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Category: imidazoles-derivativesIn 2017 ,《Structure-activity relationships of rosiglitazone for peroxisome proliferator-activated receptor gamma transrepression》 was published in Bioorganic & Medicinal Chemistry Letters. The article was written by Toyota, Yosuke; Nomura, Sayaka; Makishima, Makoto; Hashimoto, Yuichi; Ishikawa, Minoru. The article contains the following contents:

Anti-inflammatory effects of peroxisome proliferator-activated receptor gamma (PPRAγ) ligands are thought to be largely due to PPARγ-mediated transrepression. Thus, transrepression-selective PPARγ ligands without agonistic activity or with only partial agonistic activity should exhibit anti-inflammatory properties with reduced side effects. Here, the authors investigated the structure-activity relationships (SARs) of PPARγ agonist rosiglitazone, focusing on transrepression activity. Alkenic analogs showed slightly more potent transrepression with reduced efficacy of transactivating agonistic activity. Removal of the alkyl group on the nitrogen atom improved selectivity for transrepression over transactivation. Among the synthesized compounds, I exhibited stronger transrepressional activity (IC50: 14 μM) and weaker agonistic efficacy (11%) than rosiglitazone or pioglitazone. After reading the article, we found that the author used 2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1Category: imidazoles-derivatives)

2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1) is an analog of benzimidazole that has been synthesized by Langmuir adsorption isotherm. It is a white crystalline solid that can be dissolved in water and hydrochloric acid. 2-Chloro-1H-benzo[d]imidazole inhibits the growth of herpes simplex virus by acting as a competitive inhibitor for the viral enzyme thymidine kinase, which catalyzes the conversion of thymine to thymidine.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

COA of Formula: C3H5N3In 2017 ,《2-Aminoimidazoles: synthesis by ring transformation reactions》 appeared in Studies in Natural Products Chemistry. The author of the article were Babaev, Eugene V.. The article conveys some information:

A review. Marine sponges belonging to the Calcarea family have been proven to be a source of biol. active alkaloids and their metabolites. Two Calcarea genera, Leucetta and Clathrina, have been found to contain more than 60 examples of imidazole alkaloids during the last 30 years. Since the first discovery of 2-aminoimidazole (2-Al) alkaloids in marine sponges by Kashman’s group in 1987. A number of preclathridine and isonaamine alkaloids, representing a family of 1,4-substituted 2-aminoimidazoles bearing one or two substituted benzyl moieties, have been isolated and synthesized in the last decades (see Scheme 2.1) [2]. Of course, the number of 2-AI is not exhausted by these examples; the series is much broader [3]. Many 2-AI alkaloids have been reported to have cytotoxic, antimicrobial, or antifungal properties [4,5],and this topic was recently well reviewed. In addition to this study using 1H-Imidazol-2-amine, there are many other studies that have used 1H-Imidazol-2-amine(cas: 7720-39-0COA of Formula: C3H5N3) was used in this study.

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Primary amines having a tertiary alkyl group (R3CNH2) are difficult to prepare with most methods but are made industrially by the Ritter reaction. In this method a tertiary alcohol reacts with hydrogen cyanide (HCN) in the presence of a concentrated strong acid; a formamide, RNH―CHO, is formed first, which then undergoes hydrolysis.COA of Formula: C3H5N3

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2022,Evans, Courtney; Morimitsu, Yuto; Nishi, Rikako; Yoshida, Masahiro; Takei, Takayuki published an article in Journal of Bioscience and Bioengineering. The title of the article was 《Novel hydrophobically modified agarose cryogels fabricated using dimethyl sulfoxide》.Category: imidazoles-derivatives The author mentioned the following in the article:

Drug delivery systems (DDS) are devices able to adsorb therapeutic drugs in vitro before being either injected or surgically implanted into the body before releasing the drugs in vivo. Hydrogels are interesting for DDS researchers as they mimic soft tissue and can absorb large quantities of liquid This research reported the successful fabrication of hydrophobically modified agarose (HMA) as well as the creation of a novel approach to the formation of hydrophobically modified agarose cryogels. By activating the hydroxyl groups in agarose, hydrophobic modification could occur through the bonding of the activated hydroxyl groups and the amines in fatty aldehydes. It was found that HMA was insoluble in water, and as such a new method of cryogel creation was produced using DMSO. Further testing of HMA cryogels showed that cell adhesiveness and cytotoxicity were low. Adsorption tests showed that HMA cryogels had the ability to adsorb larger amounts of hydrophobic dye than unmodified agarose cryogels and that the release of the hydrophobic dye from HMA cryogels could be controlled. These results showed that the HMA cryogels made using this novel approach have the potential to be used as drug delivery systems. In the experiment, the researchers used many compounds, for example, Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Category: imidazoles-derivatives)

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.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2022,Wang, Zhongjuan; Xu, Shaobin; Xia, Hongying; Liu, Yanqiu; Li, Bin; Liang, Yueqin; Li, Zhongkun published an article in Drug Development and Industrial Pharmacy. The title of the article was 《A cationic cyclodextrin derivative-lipid hybrid nanoparticles for gene delivery effectively promotes stability and transfection efficiency》.Recommanded Product: Di(1H-imidazol-1-yl)methanone The author mentioned the following in the article:

Genetic medicines hold great promise for treatment of a number of diseases; however, the development of effective gene delivery carrier is still a challenge. The commonly used gene carrier liposomes and cationic polymers have limited their clin. application due to their resp. disadvantages. Lipid-polymer hybrid nanoparticles (LHNPs) are novel drug delivery system that exhibit complementary characteristics of both polymeric nanoparticles and liposomes. In this account, we developed the α-cyclodextrin-conjugated generation-2 polyamidoamine dendrimers-lipids hybrid nanoparticles (CDG2-LHNPs) for gene delivery. The pDNA/CDG2-LHNPs was stable during 15 days of storage period both at 4 °C, 25 °C, and 37 °C, whereas the particle size of pDNA/CDG2 and pDNA/liposomes dramatically increased after storage at 4 °C for 8 h. CDG2-LHNPs showed significantly superior transfection efficiencies compared to either CDG2 or liposomes. The mechanism of high transfection efficiency of pDNA/CDG2-LHNPs was further explored using pharmacol. inhibitors chlorpromazine, filipin, and cytochalasion D. The result demonstrated that cell uptake of pDNA/CDG2-LHNPs was mediated by clathrin-mediated endocytosis (CME), caveolae-mediated endocytosis (CvME), and macropinocytosis together. pDNA/CDG2-LHNPs were more likely be taken up by cells through CvME, which avoided lysosomal degradation to a large extent. Moreover, the liposome component of pDNA/CDG2-LHNPs increased its cell uptake efficiency, and the CDG2 polymer component increased its proton buffer capacity, so the hybrid nanoparticles taken up by CME could also successfully escape from the lysosome. CDG2-LHNPs with stability and high-transfection efficiency overcome the shortcomings of liposomes and polymers applied sep., and have great potential for gene drug delivery. The experimental part of the paper was very detailed, including the reaction process of Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Recommanded Product: Di(1H-imidazol-1-yl)methanone)

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: Di(1H-imidazol-1-yl)methanone

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Schotten, Christiane; Taylor, Connor J.; Bourne, Richard A.; Chamberlain, Thomas W.; Nguyen, Bao N.; Kapur, Nik; Willans, Charlotte E. published their research in Reaction Chemistry & Engineering in 2021. The article was titled 《Alternating polarity for enhanced electrochemical synthesis》.Computed Properties of C21H25ClN2 The article contains the following contents:

Synthetic electrochem. has recently become an exciting technol. for chem. synthesis. The majority of reported syntheses use either constant current or constant potential, however a few use non-linear profiles – mostly alternating polarity – to maintain efficiency throughout the process, such as controlling deposits on electrodes or ensuring even use of electrodes. However, even though parameters that are associated with such profiles, such as the frequency, can have a major impact on the reaction outcome, they are often not investigated. Herein, we report the crucial impact that the applied frequency of the alternating polarity has on the observed reaction rate of Cu(I)-NHC complex formation and demonstrate that this can be manipulated to give enhanced yield that is stable over extended reaction times. The results came from multiple reactions, including the reaction of 1,3-Dimesityl-1H-imidazol-3-ium chloride(cas: 141556-45-8Computed Properties 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.Computed Properties of C21H25ClN2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem