Author: Jessica.F

The author of 《Acid, silver, and solvent-free gold-catalyzed hydrophenoxylation of internal alkynes》 were Richard, Marcia E.; Fraccica, Daniel V.; Garcia, Kevin J.; Miller, Erica J.; Ciccarelli, Rosa M.; Holahan, Erin C.; Resh, Victoria L.; Shah, Aakash; Findeis, Peter M.; Stockland, Robert A. Jr.. And the article was published in Beilstein Journal of Organic Chemistry in 2013. Application In Synthesis of Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I) The author mentioned the following in the article:

A range of (aryl)gold compounds were synthesized and investigated as single-component catalysts for a hydrophenoxylation of un-activated internal alkynes. Both carbene and phosphine-ligated compounds were screened as part of this work and the most efficient catalysts contained either JohnPhos or IPr/SIPr. Phenols bearing either electron-withdrawing or electron-donating groups were efficiently added using these catalysts. No silver salts, acids, or solvents were needed for the catalysis, and either microwave or conventional heating afforded moderate to excellent yields of the vinyl ethers. The title compounds thus formed included 1-[[(1Z)-1,2-diphenylethenyl]oxy]-4-nitrobenzene (I) and related substances, such as 1-nitro-4-[[(1Z)-1-phenyl-1-hexen-1-yl]oxy]benzene. The synthesis of the target compounds was achieved by a reaction of alkynes, such as 1,2-diphenylethyne, 5-decyne, (1-hexynyl)benzene with phenol derivatives, such as 4-nitrophenol, methylphenol, [1,1′-biphenyl]-4-ol. In the experiment, the researchers used many compounds, for example, Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I)(cas: 852445-84-2Application In Synthesis of 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. Application In Synthesis of Chloro{1,3-bis[2,6-bis(1-methylethyl)phenyl]-4,5-dihydroimidazol-2-ylidene}gold(I)

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2008,Angell, Richard M.; Angell, Tony D.; Bamborough, Paul; Brown, David; Brown, Murray; Buckton, Jacky B.; Cockerill, Stuart G.; Edwards, Chris D.; Jones, Katherine L.; Longstaff, Tim; Smee, Penny A.; Smith, Kathryn J.; Somers, Don O.; Walker, Ann L.; Willson, Malcolm published 《Biphenyl amide p38 kinase inhibitors. 2: Optimization and SAR》.Bioorganic & Medicinal Chemistry Letters published the findings.Recommanded Product: 16681-56-4 The information in the text is summarized as follows:

The biphenyl amides are a novel series of p38 MAP kinase inhibitors. Structure-activity relationships of the series against p38α are discussed with reference to the x-ray crystal structure of an example. The series was optimized rapidly to a compound (I) showing oral activity in an in vivo disease model. After reading the article, we found that the author used 2-Bromo-1H-imidazole(cas: 16681-56-4Recommanded Product: 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. Recommanded Product: 16681-56-4

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2011,Abul Hashem, Md.; Sultana, Abeda published 《Synthesis of N-(2′-imidazolyl)-2-aminopyridyl palladium dichloride and its application as catalyst in Suzuki-Miyaura cross coupling reaction》.Journal of the Bangladesh Chemical Society published the findings.Synthetic Route of C3H3BrN2 The information in the text is summarized as follows:

The ligand N-(2′-imidazolyl)-2-aminopyridine was prepared from imidazole and it forms N-(2′-imidazolyl)-2-aminopyridyl palladium dichloride complex with Na2PdCl4 in methanol. The complex (1.5 mmol %) was used to prepare substituted biphenyls, terphenyls, and heterobiaryls in good to excellent yields via Suzuki-Miyaura cross-coupling reaction of substituted phenylboronic acids and substituted aryl chlorides, bromides and iodides. The experimental part of the paper was very detailed, including the reaction process of 2-Bromo-1H-imidazole(cas: 16681-56-4Synthetic Route of C3H3BrN2)

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. Synthetic Route of C3H3BrN2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

In 2018,Computational & Theoretical Chemistry included an article by Rashid, Al Mamunur Md.; Cho, Soo Gyeong; Choi, Cheol Ho. Formula: C3H5N3. The article was titled 《Heat of formation prediction by G4MP2-SFM schemes: An application to various nitroazole derivatives》. The information in the text is summarized as follows:

Our G4MP2-SFM parameterization schemes have been applied to the various azole derivatives including imidazole, triazole, tetrazole, imidazolidine, [1,2,4]triazolo[4,3-a][1,3,5]triazine, tetrazine and pyrimidine, in order to establish a set of parameters for the reliable and fast heat of formation (ΔHof) predictions. It is shown that a parameterization on such complex systems is possible, yielding an overall mean absolute deviation (MAD) and root mean square deviation (RMSD) to be 3.5kcal/mol and 4.3kcal/mol, resp. compared to full G4MP2. During the development of the parameters, we have found that nonbonded interactions are very important to predict the ΔHof of high energy materials (HEMs). While both mol. weight and the number of NO2 substituents rarely affect the ΔHof magnitude, the geometric configurations and the number of heteroatoms in the azole ring significantly change it. In the experimental materials used by the author, we found 1H-Imidazol-2-amine(cas: 7720-39-0Formula: C3H5N3)

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Acylation is one of the most important reactions of primary and secondary amines; a hydrogen atom is replaced by an acyl group (a group derived from an acid, such as RCOOH or RSO3H, by removal of ―OH, such as RC(=O)―, RS(O)2―, and so on). Reagents may be acid chlorides (RCOC1, RSO2C1), anhydrides ((RCO)2O), or even esters (RCOOR′); the products are amides of the corresponding acids.Formula: C3H5N3

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

The author of 《Nanostructured γ-Fe2O3@Starch-n-Butyl SO3H as new recyclable magnetic catalyst for promoting multi-component reactions》 were Shamsi-Sani, Mahnaz; Shirini, Farhad; Mohammadi-Zeydi, Masoud. And the article was published in Journal of Nanoscience and Nanotechnology in 2019. Application In Synthesis of 1H-Benzo[d]imidazol-2-amine The author mentioned the following in the article:

Butane-1-soltunic acid modified starch-coated γ-Fe2O3 magnetic nanoparticles [γ-Fe2O3@starch- Bu SO3H] was easily prepared through a ring opening reaction of 1,4-butane sultone with nano- magnetic γ-Fe2O3@starch. After structural studies, using FT-IR, SEM, XRD, TGA, TEM, EDX, VSM and also pH anal. the efficiency of this reagent in the preparation of tetrahydrobenzinnidazo[2,1-b] quinazolin-1(2H)-ones and 2H-indazolo[2,1-b]phthalazine-triones was studied. Operational simple- ness, high yields, short reaction times, wide applicability and simple recyclability of the catalyst employing an external magnet are the most important advantages of this methodol. The experimental part of the paper was very detailed, including the reaction process of 1H-Benzo[d]imidazol-2-amine(cas: 934-32-7Application In Synthesis of 1H-Benzo[d]imidazol-2-amine)

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.Application In Synthesis of 1H-Benzo[d]imidazol-2-amine

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《General Synthesis of Trialkyl- and Dialkylarylsilylboranes: Versatile Silicon Nucleophiles in Organic Synthesis》 was published in Journal of the American Chemical Society in 2020. These research results belong to Shishido, Ryosuke; Uesugi, Minami; Takahashi, Rikuro; Mita, Tsuyoshi; Ishiyama, Tatsuo; Kubota, Koji; Ito, Hajime. Category: imidazoles-derivatives The article mentions the following:

Silylboranes R3SiBpin were prepared by transition metal-catalyzed borylation of hydrosilanes R3SiH with pinB-Bpin; versatility of silicon nucleophiles thus obtained is explored in coupling and conjugate addition reactions. Compared to carbon-based nucleophiles, the number of silicon-based nucleophiles that is currently available remains limited, which significantly hampers the structural diversity of synthetically accessible silicon-based mols. Given the high synthetic utility and ease of handling of carbon-based boron nucleophiles, silicon-based boron nucleophiles, i.e., silylboranes, have received considerable interest in recent years as nucleophilic silylation reagents that are activated by transition-metal catalysts or bases. However, the range of practically accessible silylboranes remains limited. In particular, the preparation of sterically hindered and functionalized silylboranes remains a significant challenge. Here, we report the use of rhodium and platinum catalysts for the direct borylation of hydrosilanes with bis(pinacolato)diboron, which allows the synthesis of new trialkylsilylboranes that bear bulky alkyl groups and functional groups as well as new dialkylarylsilylboranes that are difficult to synthesize via conventional methods using alkali metals. We further demonstrate that these compounds can be used as silicon nucleophiles in organic transformations, which significantly expands the scope of synthetically accessible organosilicon compounds compared to previously reported methods. Thus, the present study can be expected to inspire the development of efficient methods for novel silicon-containing bioactive mols. and organic materials with desirable properties. We also report the first 11B{1H} and 29Si{1H} NMR spectroscopic evidence for the formation of iPr3SiLi generated by the reaction of iPr3Si-B(pin) with MeLi. The results came from multiple reactions, including the reaction 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

《Hyperbranched cationic polysaccharide derivatives for efficient siRNA delivery and diabetic wound healing enhancement》 was published in International Journal of Biological Macromolecules in 2020. These research results belong to Lan, Biyun; Wu, Junfeng; Li, Na; Pan, Chenglin; Yan, Li; Yang, Chuan; Zhang, Liming; Yang, Liqun; Ren, Meng. Computed Properties of C7H6N4O The article mentions the following:

Gene vectors are important for successful siRNA delivery. Four types of hyperbranched cationic polysaccharide derivatives (HCP) were synthesized by conjuncting 1,2-ethylenediamine (EDA) and diethylenetriamine (DETA) with glycogen or amylopectin resp. and named as G-EDA, G-DETA, A-EDA and A-DETA. The efficiency and safety of these HCPs to deliver siRNA were explored in vitro and in vivo. Our results showed that HCPs could form complexes with siRNA. All HCP/siRNA exhibited negligible cytotoxicity. Compared with A-EDA and A-DETA, G-EDA and G-DETA could carry much more siRNA into cells and then escape from endosomes. The delivery of MMP-9 siRNA (siMMP-9) by G-EDA and G-DETA significantly inhibited MMP-9 in HaCaT cells. Wound models in diabetic rats demonstrated that treatment of G-EDA/siMMP-9 could potently knock down MMP-9 of skin wound tissues and then enhanced wound healing. In summary, this study provided an effective and safe approach for siRNA delivery in vitro and in vivo.Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Computed Properties of C7H6N4O) was used in this study.

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.Computed Properties of C7H6N4O

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《TAT-functionalized PEI-grafting rice bran polysaccharides for safe and efficient gene delivery》 was written by Liu, Liang; Yan, Yujian; Ni, Danni; Wu, Shuheng; Chen, Yiran; Chen, Xin; Xiong, Xuemin; Liu, Gang. Safety of Di(1H-imidazol-1-yl)methanone And the article was included in International Journal of Biological Macromolecules in 2020. The article conveys some information:

Polysaccharides are considered to be promising candidates for non-viral gene delivery because of their mol. diversity, which can be modified to fine-tune their physicochem. properties. In this work, transcriptional activator protein (TAT) functionalized PEI grafted polysaccharide polymer (PRBP) was prepared by using rice bran polysaccharide as the starting material, and characterized by various methods. The potential of TAT functionalized PRBP (PRBP-TAT) as gene vector was studied in vitro, including DNA loading capacity, DNA protection ability and biocompatibility. The cell uptake and transfection efficiency of the PRBP-TAT/pDNA polyplexes were studied. The results showed that PRBP-TAT could completely condense DNA at N/P 2. The PRBP-TAT/pDNA polyplexes could protect DNA from degrading by DNase and were efficiently internalized by cells. Biocompatibility result showed that PRBP-TAT had no significant cytotoxicity and effect on cell proliferation. At low N/P ratios of 1-3.5, PRBP-TAT showed higher transfection efficiency than PEI30k and PEI30k-grafted rice bran polysaccharide. PRBP-TAT and PEI showed the highest transfection efficiency of 42.8% and 28.1% when pDNA is 2 ug and N/P ratio is 1.5, resp., while PRBP showed the highest transfection efficiency of 37.3% at N/P 2.5. These results indicate that PTA is a promising candidate vector for safe and efficient gene delivery. In the experiment, the researchers used many compounds, for example, Di(1H-imidazol-1-yl)methanone(cas: 530-62-1Safety of 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.Safety of Di(1H-imidazol-1-yl)methanone

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Linker substituents control thermodynamic stability in metal organic frameworks》 was written by Novendra, Novendra; Marrett, Joseph M.; Katsenis, Athanassios D.; Titi, Hatem M.; Arhangelskis, Mihails; Friscic, Tomislav; Navrotsky, Alexandra. Formula: C3H3BrN2 And the article was included in Journal of the American Chemical Society in 2020. The article conveys some information:

We report the first systematic exptl. and theor. study of the relationship between the linker functionalization and the thermodn. stability of metal-organic frameworks (MOFs) using a model set of eight isostructural zeolitic imidazolate frameworks (ZIFs) based on 2-substituted imidazolate linkers. The frameworks exhibit a significant (30 kJ·mol-1) variation in the enthalpy of formation depending on the choice of substituent, which is accompanied by only a small change in molar volume. These energetics were readily reproduced by d. functional theory (DFT) calculations We show that these variations in the enthalpy of MOF formation are in linear correlation to the readily accessible properties of the linker substituent, such as the Hammett σ-constant or electrostatic surface potential. These results provide the first quantifiable relationship between the MOF thermodn. and the linker structure, suggesting a route to design and tune MOF stability. The results came from multiple reactions, including the reaction of 2-Bromo-1H-imidazole(cas: 16681-56-4Formula: C3H3BrN2)

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. Formula: C3H3BrN2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

《Potentially Prebiotic Activation Chemistry Compatible with Nonenzymatic RNA Copying》 was written by Zhang, Stephanie J.; Duzdevich, Daniel; Szostak, Jack W.. Application of 7720-39-0 And the article was included in Journal of the American Chemical Society in 2020. The article conveys some information:

The nonenzymic replication of RNA may have enabled the propagation of genetic information during the origin of life. RNA copying can be initiated in the laboratory with chem. activated nucleotides, but continued copying requires a source of chem. energy for in situ nucleotide activation. Recent work has illuminated a potentially prebiotic cyanosulfidic chem. that activates nucleotides, but its application to nonenzymic RNA copying had not been demonstrated. Here, we report a novel pathway that activates RNA nucleotides in a manner compatible with template-directed nonenzymic copying. We show that this pathway, which we refer to as bridge-forming activation, selectively yields the reactive imidazolium-bridged dinucleotide intermediate required for copying. Our results will enable more realistic simulations of RNA propagation based on continuous in situ nucleotide activation. In addition to this study using 1H-Imidazol-2-amine, there are many other studies that have used 1H-Imidazol-2-amine(cas: 7720-39-0Application of 7720-39-0) was used in this study.

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Large quantities of aliphatic amines are made synthetically. The most widely used industrial method is the reaction of alcohols with ammonia at a high temperature, catalyzed by metals or metal oxide catalysts (e.g., nickel or copper). Mixtures of primary, secondary, and tertiary amines are thereby produced.Application of 7720-39-0

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem