Author: Jessica.F

Computed Properties of C4H6N2In 2021 ,《Ultrafast Dynamics and Liquid Structure in Mesoporous Silica: Propagation of Surface Effects in a Polar Aprotic Solvent》 was published in Journal of Physical Chemistry B. The article was written by Hung, Samantha T.; Yamada, Steven A.; Zheng, Weizhong; Fayer, Michael D.. The article contains the following contents:

Enhancement of processes ranging from gas sorption to ion conduction in a liquid can be substantial upon nanoconfinement. Here, the dynamics of a polar aprotic solvent, 1-methylimidazole (MeIm), in mesoporous silica (2.8, 5.4, and 8.3 nm pore diameters) were examined using femtosecond IR vibrational spectroscopy and mol. dynamics simulations of a dilute probe, the selenocyanate (SeCN-) anion. The long vibrational lifetime and sensitivity of the CN stretch enabled a comprehensive investigation of the relatively slow time scales and subnanometer distance dependences of the confined dynamics. Because MeIm does not readily donate hydrogen bonds, its interactions in the hydrophilic silanol pores differ more from the bulk than those of water confined in the same mesopores, resulting in greater structural order and more dramatic slowing of dynamics. The extent of surface effects was quantified by modified two-state models used to fit three spatially averaged exptl. observables: vibrational lifetime, orientational relaxation, and spectral diffusion. The length scales and the models (smoothed step, exponential decay, and simple step) describing the transitions between the distinctive shell behavior at the surface and the bulk-like behavior at the pore interior were compared to those of water. The highly nonuniform distributions of the SeCN- probe and antiparallel layering of MeIm revealed by the simulations guided the interpretation of the results and development of the anal. models. The results illustrate the importance of electrostatic effects and H-bonding interactions in the behavior of confined liquids In the experimental materials used by the author, we found 1-Methyl-1H-imidazole(cas: 616-47-7Computed Properties of C4H6N2)

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Computed Properties of C4H6N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Related Products of 4857-06-1In 2019 ,《High yielding protocol for direct conversion of thiols to sulfonyl chlorides and sulfonamides》 was published in Journal of Sulfur Chemistry. The article was written by Sohrabnezhad, Samira; Bahrami, Kiumars; Hakimpoor, Farahman. The article contains the following contents:

A new method for oxidative chlorination of thiols RSH [R = CH3(CH2)7, 2-naphthyl, cyclohexyl, ClSO2(CH2)3, etc.] to sulfonyl chlorides RSO2Cl and sulfonamides RSO2N(R1)R2 [R1 = H, C6H5, CH3CH2; R2 = cyclohexyl, 1-naphthyl, CH3CH2, etc.; R1R2 = -CH2(CH2)3CH2-] using H2O2 in the presence of TMSCl is reported. The excellent yields, short reaction times, excellent efficiencies, low costs, and easy separation of products are the most important advantages of this method. In addition to this study using 2-Chloro-1H-benzo[d]imidazole, there are many other studies that have used 2-Chloro-1H-benzo[d]imidazole(cas: 4857-06-1Related Products of 4857-06-1) was used in this study.

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.Related Products of 4857-06-1

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Name: 1-Methyl-1H-imidazoleIn 2022 ,《Surface Structure of Alkyl/Fluoroalkylimidazolium Ionic-Liquid Mixtures》 was published in Journal of Physical Chemistry B. The article was written by Purcell, Simon M.; Lane, Paul D.; DAndrea, Lucia; Elstone, Naomi S.; Bruce, Duncan W.; Slattery, John M.; Smoll, Eric J. Jr.; Greaves, Stuart J.; Costen, Matthew L.; Minton, Timothy K.; McKendrick, Kenneth G.. The article contains the following contents:

The gas-liquid interface of ionic liquids (ILs) is critically important in many applications, for example, in supported IL phase (SILP) catalysis. Methods to investigate the interfacial structure in these systems will allow their performance to be improved in a rational way. In this study, reactive-atom scattering (RAS), surface tension measurements, and mol. dynamics (MD) simulations were used to study the vacuum interface of mixtures of partially fluorinated and normal alkyl ILs. The underlying aim was to understand whether fluorinated IL ions could be used as additives to modify the surface structure of one of the most widely used families of alkyl ILs. The series of ILs 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Cnmim][Tf2N]) with n = 4-12 were mixed with a fixed-length, semiperfluorinated analog (1H,1H,2H,2H-perfluorooctyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C8mimF13][Tf2N]), forming [Cnmim](1-x)[C8mimF13]x[Tf2N] mixtures, where x is the bulk mole fraction of the fluorinated component. The RAS-LIF method combined O-atom projectiles with laser-induced fluorescence (LIF) detection of the product OH as a measure of surface exposure of the alkyl chains. For [C8mim](1-x)[C8mimF13]x[Tf2N] mixtures, RAS-LIF OH yields are below those expected from stoichiometry. There are quant. consistent neg. deviations from linearity of the surface tension. Both results imply that the lower-surface-tension fluoroalkyl material dominates the surface. A similar deficit is found for alkyl chain lengths n = 4, 6, 8, and 12 and for all (nonzero) x investigated by RAS-LIF. Accessible-surface-area (ASA) analyses of the MD simulations for [Cnmim](1-x)[C8mimF13]x[Tf2N] mixtures qual. reproduce the same primary effect of fluoro-chain predominance of the surface over most of the range of n. However, there are significant quant. discrepancies between MD ASA predictions and experiment relating to the strength of any n-dependence of the relative alkyl coverage at fixed x, and on the x-dependence at fixed n. These discrepancies are discussed in the context of detailed examinations of the surface structures predicted in the MD simulations. Potential explanations, beyond exptl. artifacts, include inadequacies in the classical force fields used in the MD simulations or the inability of simple ASA algorithms to capture dynamical factors that influence RAS-LIF yields. Side view of representative single MD snapshots of pure [Cnmim][Tf2N] (upper row) and [C8mim]0.75 [C8mimF13]0.25 [Tf2N] mixtures (lower row) for n = 4, 6, 8, and 12. Color scheme as in Figure.1-Methyl-1H-imidazole(cas: 616-47-7Name: 1-Methyl-1H-imidazole) was used in this study.

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Name: 1-Methyl-1H-imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《3D Printable, Highly Stretchable, Superior Stable Ionogels Based on Poly(ionic liquid) with Hyperbranched Polymers as Macro-cross-linkers for High-Performance Strain Sensors》 was written by Wang, Zihao; Zhang, Jianxin; Liu, Jiahang; Hao, Shuai; Song, Hongzan; Zhang, Jun. Reference of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborateThis research focused onthree dimensional printing hyperbranched polymer ionogel; 3D printing; hyperbranched polymer; macro-cross-linkers; poly(ionic liquid); strain sensors; stretchable ionogels. The article conveys some information:

Stretchable ionogels have recently emerged as promising soft and safe ionic conductive materials for use in wearable and stretchable electrochem. devices. However, the complex preparation process and insufficient thermomech. stability greatly limit the precise rapid fabrication and application of stretchable ionogels. Here, we report an in situ 3D printing method for fabricating high-performance single network chem. ionogels as advanced strain sensors. The ionogels consist of a special crosslinking network constructed by poly(ionic liquid) and hyperbranched polymer (macro-crosslinkers) that exhibits high stretchability (>1000%), superior room-temperature ionic conductivity (up to 5.8 mS/cm), and excellent thermomech. stability (-75 to 250°C). The strain sensors based on ionogels have a low response time (200 ms), high sensitivity with temperature independence, long-term durability (2000 cycles), and excellent temperature tolerance (-60 to 250°C) and can be used as human motion sensors. This work provides a new strategy to design highly stretchable and superior stable electronic devices. In the experiment, the researchers used 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate(cas: 174501-65-6Reference of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate)

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. Reference of 3-Butyl-1-methyl-1H-imidazol-3-ium tetrafluoroborate

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Discovery of Novel Small Molecule Orally Bioavailable C-X-C Chemokine Receptor 4 Antagonists That Are Potent Inhibitors of T-Tropic (X4) HIV-1 Replication》 was written by Skerlj, Renato T.; Bridger, Gary J.; Kaller, Al; McEachern, Ernest J.; Crawford, Jason B.; Zhou, Yuanxi; Atsma, Bem; Langille, Jonathon; Nan, Susan; Veale, Duane; Wilson, Trevor; Harwig, Curtis; Hatse, Sigrid; Princen, Katrien; De Clercq, Erik; Schols, Dominique. Application In Synthesis of 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol And the article was included in Journal of Medicinal Chemistry on April 22 ,2010. The article conveys some information:

The redesign of azamacrocyclic CXCR4 chemokine receptor antagonists resulted in the discovery of novel, small mol., orally bioavailable compounds that retained T-tropic (CXCR4 using, X4) anti-HIV-1 activity. A structure-activity relationship (SAR) was determined on the basis of the inhibition of replication of X4 HIV-1 NL4.3 in MT-4 cells. As a result of lead optimization, we identified (S)-N’-((1H-benzo[d]imidazol-2-yl)methyl)-N’-(5,6,7,8-tetrahydroquinolin-8-yl)butane-1,4-diamine (AMD070) 2 as a potent and selective antagonist of CXCR4 with an IC50 value of 13 nM in a CXCR4 125I-SDF inhibition binding assay. Compound 2 inhibited the replication of T-tropic HIV-1 (NL4.3 strain) in MT-4 cells and PBMCs with an IC50 of 2 and 26 nM, resp., while remaining noncytotoxic to cells at concentrations exceeding 23 μM. The pharmacokinetics of 2 was evaluated in rat and dog, and good oral bioavailability was observed in both species. This compound represents the first small mol. orally bioavailable CXCR4 antagonist that was developed for the treatment of HIV-1 infection. The experimental process involved the reaction of 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol(cas: 2403-66-9Application In Synthesis of 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol)

3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol(cas: 2403-66-9) belongs to imidazoles.Imidazole rings are also present in imidazole ring alkaloids, which are potential therapeutics for thrombosis, cancer and inflammatory diseases.Application In Synthesis of 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol Although other azole heterocycles are ubiquitous in a wide range of biologically active natural products, imidazole rings occur predominantly in the natural amino acid histidine.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Para-xylyl linked bis-imidazolium ionic liquids: A study of the conformers of the cation and of the anion-cation hydrogen bonding》 was written by Haddad, Boumediene; Paolone, Annalisa; Drai, Mokhtar; Boumediene, Mostefa; Villemin, Didier; Belarbi, El-habib; Rahmouni, Mustapha; Bresson, Serge; Abbas, Ouissam. Recommanded Product: 616-47-7This research focused onxylyl imidazolium ionic liquid hydrogen bond conformer Raman spectrum. The article conveys some information:

In this work, two new para-xylyl linked bis-imidazolium Ionic Liquids (DILs), namely [p-C6H4(CH2ImMe)2][Cl2-] and [p-C6H4(CH2ImMe)2+][BF4-]2, are prepared from imidazolium salts using a simple procedure in two steps. A computational study of the conformers of [p-C6H4(CH2ImMe)2], performed by means of DFT calculations with the 6-31G** basis set and the B3LYP theory, evidences that nine possible geometries of the cation are stable points of the potential energy surface and, therefore, could be exptl. found in real compounds The IR and Raman spectra of the nine conformers are calculated and compared to the exptl. data. The occurrence of the trans configuration of the imidazolium rings in both compounds is strongly supported by this comparison. Finally, the cation-anion interactions were investigated in both DILs by means of NMR and Raman measurements, with a particular attention to the occurrence of hydrogen bonding. Both techniques indicate that hydrogen bonding is stronger in the sample containing Cl as anion. Moreover, the preferred site for hydrogen bonding is the C2 proton of the imidazolium ring; however, also the C(4) and C(5) protons of imidazolium, the methylene group and the Ph ring participate to the hydrogen bonding.1-Methyl-1H-imidazole(cas: 616-47-7Recommanded Product: 616-47-7) was used in this study.

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Recommanded Product: 616-47-7

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Vegetable oil-based thiol-ene/thiol-epoxy resins for laser direct writing 3D micro-/nano-lithography》 was written by Grauzeliene, Sigita; Navaruckiene, Aukse; Skliutas, Edvinas; Malinauskas, Mangirdas; Serra, Angels; Ostrauskaite, Jolita. Electric Literature of C4H6N2This research focused onvegetable oil thiol ene epoxy resin laser direct writing; biobased polymer; click reactions; dual curing; laser direct writing; linseed oil; optical 3D printing; soybean oil; thiol-ene; thiol-epoxy. The article conveys some information:

The use of renewable sources for optical 3D printing instead of petroleum-based materials is increasingly growing. Combinations of photo- and thermal polymerization in dual curing processes can enhance the thermal and mech. properties of the synthesized thermosets. Consequently, thiol-ene/thiol-epoxy polymers were obtained by combining UV and thermal curing of acrylated epoxidized soybean oil and epoxidized linseed oil with thiols, benzene-1,3-dithiol and pentaerythritol tetra(3-mercaptopropionate). Thiol-epoxy reaction was studied by calorimetry. The changes of rheol. properties were examined during UV, thermal and dual curing to select the most suitable formulations for laser direct writing (LDW). The obtained polymers were characterized by dynamic-mech. thermal anal., thermogravimetry, and mech. testing. The selected dual curable mixture was tested in LDW 3D lithog. for validating its potential in optical micro- and nano-additive manufacturing The obtained results demonstrated the suitability of epoxidized linseed oil as a biobased alternative to bisphenol A diglycidyl ether in thiol-epoxy thermal curing reactions. Dual cured thermosets showed higher rigidity, tensile strength, and Young’s modulus values compared with UV-cured thiol-ene polymers and the highest thermal stability from all prepared polymers. LDW results proved their suitability for high resolution 3D printing-individual features reaching an unprecedented 100 nm for plant-based materials. Finally, the biobased resin was tested for thermal post-treatment and 50% feature downscaling was achieved. In the part of experimental materials, we found many familiar compounds, such as 1-Methyl-1H-imidazole(cas: 616-47-7Electric Literature of C4H6N2)

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Electric Literature of C4H6N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Name: 3-(1H-Benzo[d]imidazol-2-yl)propan-1-olOn October 8, 2015 ,《Discovery and Optimization of a Series of Pyrimidine-Based Phosphodiesterase 10A (PDE10A) Inhibitors through Fragment Screening, Structure-Based Design, and Parallel Synthesis》 was published in Journal of Medicinal Chemistry. The article was written by Shipe, William D.; Sharik, Steven S.; Barrow, James C.; McGaughey, Georgia B.; Theberge, Cory R.; Uslaner, Jason M.; Yan, Youwei; Renger, John J.; Smith, Sean M.; Coleman, Paul J.; Cox, Christopher D.. The article contains the following contents:

Screening of a fragment library for PDE10A inhibitors identified a low mol. weight pyrimidine hit with PDE10A Ki of 8700 nM and LE of 0.59. Initial optimization by catalog followed by iterative parallel synthesis guided by X-ray cocrystal structures resulted in rapid potency improvements with minimal loss of ligand efficiency. Compound 15h, with PDE10A Ki of 8.2 pM, LE of 0.49, and >5000-fold selectivity over other PDEs, fully attenuates MK-801-induced hyperlocomotor activity after i.p. dosing. The experimental process involved the reaction of 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol(cas: 2403-66-9Name: 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol)

3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol(cas: 2403-66-9) belongs to imidazoles.Although other azole heterocycles are ubiquitous in a wide range of biologically active natural products, imidazole rings occur predominantly in the natural amino acid histidine. Name: 3-(1H-Benzo[d]imidazol-2-yl)propan-1-ol In addition, imidazole rings are part of unnatural cyclic peptides and are used as ester isosteres in peptidomimetic studies.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Electric Literature of C27H39ClN2On October 5, 2021 ,《Activated Hoveyda-Grubbs Olefin Metathesis Catalysts Derived from a Large Scale Produced Pharmaceutical Intermediate – Sildenafil Aldehyde》 was published in Advanced Synthesis & Catalysis. The article was written by Monsigny, Louis; Piatkowski, Jakub; Trzybinski, Damian; Wozniak, Krzysztof; Nienaltowski, Tomasz; Kajetanowicz, Anna; Grela, Karol. The article contains the following contents:

Two EWG-activated Hoveyda-Grubbs-type ruthenium complexes (Sil-II and Sil-II’) were obtained, characterized, and screened in a set of olefin metathesis reactions. These catalysts were conveniently synthesized from a com. available pharmaceutical building block – Sildenafil aldehyde – in two steps only. Stability and catalytic activity tests disclosed that the bulkier NHC-ligand bearing catalyst Sil-II’ is visibly more stable and productive than its smaller NHC-analog Sil-II. Good application profile of catalyst Sil-II’ was confirmed in a set of diverse metathesis reactions including ring-closing metathesis (RCM) and cross-metathesis (CM) of complex polyfunctional substrates of medicinal chem. interest, including a challenging macrocyclization of the Pacritinib precursor. Compatibility of the new catalyst with various green solvents was checked and metathesis of Sildenafil and Tadalafil-based substrates was successfully conducted in acetone. The mechanism of Sil-II’ initiation has been investigated through kinetic experiments unveiling that the decrease of the steric hindrance of the chelating alkoxy moiety (from iPrO to EtO) favors the interchange initiation pathway over the typical dissociation pathway for other popular 2nd generation Hoveyda-Grubbs catalysts. The results came from multiple reactions, including the reaction of 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride(cas: 258278-25-0Electric Literature of C27H39ClN2)

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.Electric Literature 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 2019,Organic & Biomolecular Chemistry included an article by Jang, Won Jun; Kang, Byung-Nam; Lee, Ji Hun; Choi, Yoon Mi; Kim, Chong-Hyeak; Yun, Jaesook. Name: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride. The article was titled 《NHC-copper-thiophene-2-carboxylate complex for the hydroboration of terminal alkynes》. The information in the text is summarized as follows:

An air-stable N-heterocyclic carbene-copper thiophene-2-carboxylate (CuTC) complex has been prepared for the stereoselective hydroboration of terminal alkynes using pinacolborane (HBpin) or 1,8-naphthalenediaminatoborane (HBdan). The newly synthesized complex can be directly activated by hydroboranes without a cocatalyst such as a base, and exhibits high reactivity for the hydroboration of alkynes under mild conditions. A gram-scale hydroboration of terminal phenylacetylene demonstrated the applicability of the copper complex for the preparation of alkenyl boronates. In addition to this study using 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride, there are many other studies that have used 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride(cas: 258278-25-0Name: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chloride) was used in this study.

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.Name: 1,3-Bis(2,6-diisopropylphenyl)-4,5-dihydro-1H-imidazol-3-ium chlorideIn addition, it can efficiently catalyze the Suzuki-Miyaura coupling of aryl chlorides with aryl boronic acids.

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem