Month: April 2022

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Oligomers. XVI. Oligomers of acrylonitrile. II. Polymerization and degradation investigations》. Authors are Zahn, Helmut; Schafer, Paul.The article about the compound:2-Methylglutaronitrilecas:4553-62-2,SMILESS:N#CC(C)CCC#N).HPLC of Formula: 4553-62-2. Through the article, more information about this compound (cas:4553-62-2) is conveyed.

cf. C.A. 53, 13993c. The polymerization of acrylonitrile with dodecyl mercaptan in the presence of pyridine resulted in a polymer of average mol. weight 950. From 170° on, melting oligomers with mol. weights from 280 were obtained by fractional precipitation Some HCN has been split off during thermal degradation of polyacrylonitrile. The liquid products formed at 550° were shown to be mainly nitriles which could be separated into 4 fractions. Acrylonitrile and a dimer could be found, the latter was identical with synthetic 1,3-dicyanobutane. 33 references.

Although many compounds look similar to this compound(4553-62-2)HPLC of Formula: 4553-62-2, numerous studies have shown that this compound(SMILES:N#CC(C)CCC#N), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Quality Control of Mesitylcopper(I). The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Copper(I)-Catalyzed Enantioselective Addition of Enynes to Ketones. Author is Wei, Xiao-Feng; Xie, Xiao-Wei; Shimizu, Yohei; Kanai, Motomu.

A copper(I)-catalyzed enantioselective addition of enynes to ketones was developed. The method allows facile construction of enantiomerically enriched tertiary alcs. using skipped enynes as stable hydrocarbon pronucleophiles. The combination of a soft copper(I)-conjugated Bronsted base catalyst with a chiral diphosphine ligand, (S,S)-Ph-BPE, enabled chemoselective deprotonation of the skipped enynes in the presence of ketones bearing intrinsically more acidic α-protons. The catalytically generated chiral allylcopper species enantio-, diastereo-, regio-, and chemoselectively reacted with ketones, thereby demonstrating excellent substrate generality with functional group tolerance. The skipped enyne moieties of the pronucleophiles were exclusively converted to cis-conjugated enynes, which will eventually allow for further versatile transformations.

Although many compounds look similar to this compound(75732-01-3)Quality Control of Mesitylcopper(I), numerous studies have shown that this compound(SMILES:[Cu]C1=C(C)C=C(C)C=C1C), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Darwich, Walid; Haumesser, Paul-Henri; Santini, Catherine C.; Gaillard, Frederic published an article about the compound: Mesitylcopper(I)( cas:75732-01-3,SMILESS:[Cu]C1=C(C)C=C(C)C=C1C ).Electric Literature of C9H11Cu. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:75732-01-3) through the article.

The metalization of porous silicon (PSi) is generally realized through phys. vapor deposition (PVD) or electrochem. processes using aqueous solutions The former uses a strong vacuum and does not allow for a conformal deposition into the pores. In the latter, the water used as solvent causes oxidation of the silicon during the reduction of the salt precursors. Moreover, as PSi is hydrophobic, the metal penetration into the pores is restricted to the near-surface region. Using a solution of organometallic (OM) precursors in ionic liquid (IL), we have developed an easy and efficient way to fully metalize the pores throughout the several-μm-thick porous Si. This process affords supported metallic nanoparticles characterized by a narrow size distribution. This process is demonstrated for different metals (Pt, Pd, Cu, and Ru) and can probably be extended to other metals. Moreover, as no reducing agent is necessary (the decomposition in an argon atm. at 50°C is fostered by surface silicon hydride groups borne by PSi), the safety and the cost of the process are improved.

Although many compounds look similar to this compound(75732-01-3)Electric Literature of C9H11Cu, numerous studies have shown that this compound(SMILES:[Cu]C1=C(C)C=C(C)C=C1C), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Quality Control of 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II). Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about Bias-free solar syngas production by integrating a molecular cobalt catalyst with perovskite-BiVO4 tandems. Author is Andrei, Virgil; Reuillard, Bertrand; Reisner, Erwin.

The photoelectrochem. (PEC) production of syngas from water and CO2 represents an attractive technol. towards a circular carbon economy. However, the high overpotential, low selectivity and cost of commonly employed catalysts pose challenges for this sustainable energy-conversion process. Here we demonstrate highly tunable PEC syngas production by integrating a cobalt porphyrin catalyst immobilized on carbon nanotubes with triple-cation mixed halide perovskite and BiVO4 photoabsorbers. Empirical data anal. is used to clarify the optimal electrode selectivity at low catalyst loadings. The perovskite photocathodes maintain selective aqueous CO2 reduction for one day at light intensities as low as 0.1 sun, which provides pathways to maximize daylight utilization by operating even under low solar irradiance. Under 1 sun irradiation, the perovskite-BiVO4 PEC tandems sustain bias-free syngas production coupled to water oxidation for three days. The devices present solar-to-H2 and solar-to-CO conversion efficiencies of 0.06 and 0.02%, resp., and are able to operate as standalone artificial leaves in neutral pH solution

Although many compounds look similar to this compound(28903-71-1)Quality Control of 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), numerous studies have shown that this compound(SMILES:COC1=CC=C(C=C1)C(C2=[N]3[Co+2]4([N-]56)[N-]7C(C(C8=CC=C(C=C8)OC)=C3C=C2)=CC=C7C(C9=CC=C(C=C9)OC)=C%10C=CC%11=[N]4%10)=C5C=CC6=C%11C%12=CC=C(C=C%12)OC), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 75732-01-3, is researched, Molecular C9H11Cu, about Synthesis of Copper(I) Complexes with Ketimide and Hydrazide Ligands, the main research direction is copper ketimide hydrazide tetranuclear complex preparation crystal structure.HPLC of Formula: 75732-01-3.

Copper(I) chloride reacted with lithium ketimides to form tetrameric homoleptic copper(I) ketimide complexes, [Cu(N:CR2)]4, where R = t-Bu or Ph. Mesityl copper reacted with excess 1-trimethylsilylmethyl-2,2,-dimethylhydrazine to give the mixed ligand complex (2,4,6-C6Me3H2)Cu4[N(SiMe3)NMe2]3. Single-crystal x-ray crystallog. studies revealed that the three complexes have eight-member ring structures in which the ring has a hinged or butterfly shape. Although an eight-member ring structure is common for copper(I) amido, alkyl, and aryl clusters, the structure of [Cu(N:C-t-Bu2)]4 is unusual because the hinge angle is significantly smaller than is common, resulting in short Cu···Cu contacts compared to related complexes.

Although many compounds look similar to this compound(75732-01-3)HPLC of Formula: 75732-01-3, numerous studies have shown that this compound(SMILES:[Cu]C1=C(C)C=C(C)C=C1C), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 2-Methylglutaronitrile, is researched, Molecular C6H8N2, CAS is 4553-62-2, about Electrochemical reduction of 2-methylglutaronitrile on deposited electrodes in aqueous media, the main research direction is electrochem reduction methylglutaronitrile; methyldiaminopentane.Quality Control of 2-Methylglutaronitrile.

H2N(CH2)3CHMeCH2NH2 was obtained in 40-60% yield by the electrochem. reduction of NCCH2CH2CHMeCN using deposited nickel black and palladium black cathodes under different conditions. Various synthetic parameters were standardized. The results obtained from various reduction experiments are discussed.

Although many compounds look similar to this compound(4553-62-2)Quality Control of 2-Methylglutaronitrile, numerous studies have shown that this compound(SMILES:N#CC(C)CCC#N), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Groeger, Kathrin; Baretic, Domagoj; Piantanida, Ivo; Marjanovic, Marko; Kralj, Marijeta; Grabar, Marina; Tomic, Sanja; Schmuck, Carsten published an article about the compound: Ethyl 4-amino-1-methyl-1H-imidazole-2-carboxylate hydrochloride( cas:180258-46-2,SMILESS:O=C(C1=NC(N)=CN1C)OCC.[H]Cl ).Electric Literature of C7H12ClN3O2. Aromatic heterocyclic compounds can be classified according to the number of heteroatoms or the size of the ring. The authors also want to convey more information about this compound (cas:180258-46-2) through the article.

Two novel guanidiniocarbonyl pyrrole-pyrene conjugates III and IV as spectroscopic probes for ds-polynucleotides were synthesized and their interaction with different ds-DNAs/RNAs studied. Compared to a previously reported first set of conjugates (I and II) the significant extension and increased rigidity of the central part of the structure resulted in a switch of DNA binding mode from intercalative (previously studied derivatives I and II with a nonbinding and flexible linker) to minor groove binding of the two novel guanidiniocarbonyl-pyrrole-pyrene conjugates III and IV. These two compounds interact strongly with ds-DNAs, but only weakly with ds-RNA. The newly incorporated heterocyclic moieties within the central part of the structure of III and IV were able to control by steric and hydrogen-bonding effects the alignment of the mols. within various, structurally different forms of DNA minor grooves, whereby even small differences in the position of the attached pyrene within the groove were reflected in different fluorimetric responses. In addition, III and IV revealed intriguing in vitro selectivity among various human tumor cell lines.

Although many compounds look similar to this compound(180258-46-2)Electric Literature of C7H12ClN3O2, numerous studies have shown that this compound(SMILES:O=C(C1=NC(N)=CN1C)OCC.[H]Cl), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Direct catalytic asymmetric intramolecular conjugate addition of thioamide to α,β-unsaturated ester》. Authors are Suzuki, Yuta; Yazaki, Ryo; Kumagai, Naoya; Shibasaki, Masakatsu.The article about the compound:Mesitylcopper(I)cas:75732-01-3,SMILESS:[Cu]C1=C(C)C=C(C)C=C1C).Name: Mesitylcopper(I). Through the article, more information about this compound (cas:75732-01-3) is conveyed.

A direct catalytic asym. intramol. conjugate addition of thioamide to α,β-unsaturated esters is reported. Catalytic generation of a thioamide enolate with a soft Lewis acid/hard Bronsted base cooperative catalyst was the key to the efficient catalysis. A mesitylcopper/(S)-Xyl-P-Phos catalyst exhibited high catalytic performance.

Although many compounds look similar to this compound(75732-01-3)Name: Mesitylcopper(I), numerous studies have shown that this compound(SMILES:[Cu]C1=C(C)C=C(C)C=C1C), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

In general, if the atoms that make up the ring contain heteroatoms, such rings become heterocycles, and organic compounds containing heterocycles are called heterocyclic compounds. An article called Bronsted Acid Scaling Relationships Enable Control Over Product Selectivity from O2 Reduction with a Mononuclear Cobalt Porphyrin Catalyst, published in 2019-06-26, which mentions a compound: 28903-71-1, Name is 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), Molecular C48H38CoN4O4, Related Products of 28903-71-1.

The selective reduction of O2, typically with the goal of forming H2O, represents a long-standing challenge in the field of catalysis. Macrocyclic transition-metal complexes, and cobalt porphyrins in particular, have been the focus of extensive study as catalysts for this reaction. Here, we show that the mononuclear Co-tetraarylporphyrin complex, Co(porOMe) (porOMe = meso-tetra(4-methoxyphenyl)porphyrin), catalyzes either 2e-/2H+ or 4e-/4H+ reduction of O2 with high selectivity simply by changing the identity of the Bronsted acid in DMF. The thermodn. potentials for O2 reduction to H2O2 or H2O in DMF are determined and exhibit a Nernstian dependence on the acid pKa, while the CoIII/II redox potential is independent of the acid pKa. The reaction product, H2O or H2O2, is defined by the relationship between the thermodn. potential for O2 reduction to H2O2 and the CoIII/II redox potential: selective H2O2 formation is observed when the CoIII/II potential is below the O2/H2O2 potential, while H2O formation is observed when the CoIII/II potential is above the O2/H2O2 potential. Mechanistic studies reveal that the reactions generating H2O2 and H2O exhibit different rate laws and catalyst resting states, and these differences are manifested as different slopes in linear free energy correlations between the log(rate) vs. pKa and log(rate) vs. effective overpotential for the reactions. This work shows how scaling relationships may be used to control product selectivity, and it provides a mechanistic basis for the pursuit of mol. catalysts that achieve low overpotential reduction of O2 to H2O.

Although many compounds look similar to this compound(28903-71-1)Related Products of 28903-71-1, numerous studies have shown that this compound(SMILES:COC1=CC=C(C=C1)C(C2=[N]3[Co+2]4([N-]56)[N-]7C(C(C8=CC=C(C=C8)OC)=C3C=C2)=CC=C7C(C9=CC=C(C=C9)OC)=C%10C=CC%11=[N]4%10)=C5C=CC6=C%11C%12=CC=C(C=C%12)OC), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com

Epoxy compounds usually have stronger nucleophilic ability, because the alkyl group on the oxygen atom makes the bond angle smaller, which makes the lone pair of electrons react more dissimilarly with the electron-deficient system. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Oligonuclear Homoleptic Copper(I) Pyrazolates with Multinucleating Ligand Scaffolds: High Structural Diversity in Solid-State and Solution.COA of Formula: C9H11Cu.

The synthesis of three pyrazole-based, potentially binucleating ligands 3,5-bis(R1NMeCH2)-4-R2pyrazole (L1H: R1 = pyridyl-2-methyl-, R2 = Ph; L2H: R1 = 8-quinolyl-, R2 = H; L3H: R1 = 8-quinolyl-, R2 = Ph) is described. Reaction of L1-3H with 1 equiv of mesitylcopper affords oligonuclear homoleptic complexes [CuL]n (1-3). The single crystal x-ray structure of 2 shows a tetranuclear assembly of linear coordinated Cu(I)-centers bridged by pyrazolato ligands that alternate above and below the Cu4 plane, with addnl. weak interactions from some of the ligand side arms. As the single crystal X-ray structure of 3 reveals, Ph substitution at the 4-position of the pyrazolato framework leads to significant structural modification of the Cu4 array, giving a rhombical tetranuclear complex with two linear coordinated Cu(I) centers that exhibit a short intramol. Cu···Cu contact (2.8212(10) Å) and two peripheral Cu(I) centers in a distorted tetrahedral coordination mode. Thus, 3 represents a very rare example of an inorganic pyrazolato cuprate which can also be viewed as a partly rearranged structural isomer of 2. Also, the crystal lattice of 3 shows an extended network of intra- and intermol. π-π stacking interactions between the aromatic rings. In solution, 1-3 each form two types of oligomers a and b that slowly (<1 s-1) equilibrate at room temperature Using Diffusion Ordered Spectroscopy (DOSY) and variable temperature 1H NMR spectroscopy, a and b correspond to a tetrameric and a (planar) trimeric species. Coordination of the pyridyl/quinolyl side arms that is observed in the solid state seems to be only transient in solution Although many compounds look similar to this compound(75732-01-3)COA of Formula: C9H11Cu, numerous studies have shown that this compound(SMILES:[Cu]C1=C(C)C=C(C)C=C1C), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

Reference:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com