Month: April 2022

Safety of (2S)-(+)-3-Chloropropane-1,2-diol. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about Catalytic behavior of wool-osmium tetroxide complex for asymmetric dihydroxylation of olefins. Author is Miao, Ju-Hong; Yang, Ji-Huo; Chen, Li-Yi; Tu, Bu-Xin; Huang, Mei-Yu; Jiang, Ying-Yan.

A new chiral polymer-metal complex, wool-osmium tetroxide (wool-OsO4) complex was prepared by a very simple method. This complex was able to catalyze the asym. dihydroxylation of allylamine to (R)-(+)-3-amino-1,2-propanediol and allyl chloride to (S)-(+)-3-chloro-1,2-propanediol. The optical yields amounted to 83.7 and 57.2%, and the product yields were 80.2 and 68.5% resp. The exptl. results showed that OsO4 content in the complex, reaction time, allylamine/OsO4 molar ratio and solvent all have an effect on the product and optical yields. Addnl., wool-OsO4 complex catalyst could be reused without any remarkable change in optical catalytic activity.

In some applications, this compound(60827-45-4)Safety of (2S)-(+)-3-Chloropropane-1,2-diol is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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

Synthetic Route of C3H7ClO2. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about Enhancing the detection sensitivity of trace analysis of pharmaceutical genotoxic impurities by chemical derivatization and coordination ion spray-mass spectrometry. Author is Bai, Lin; Sun, Mingjiang; An, Jianguo; Liu, David Q.; Chen, Ted K.; Kord, Alireza S..

Many pharmaceutical genotoxic impurities are neutral mols. Trace level anal. of these neutral analytes is hampered by their poor ionization efficiency in mass spectrometry (MS). Two anal. approaches including chem. derivatization and coordination ion spray-MS were developed to enhance neutral analyte detection sensitivity. The chem. derivatization approach converts analytes into highly ionizable or permanently charged derivatives, which become readily detectable by MS. The coordination ion spray-MS method, on the other hand, improves ionization by forming neutral-ion adducts with metal ions such as Na+, K+, or NH4 + which are introduced into the electrospray ionization source. Both approaches have been proven to be able to enhance the detection sensitivity of neutral pharmaceuticals dramatically. This article demonstrates the successful applications of the two approaches in the anal. of four pharmaceutical genotoxic impurities identified in a single drug development program, of which two are non-volatile alkyl chlorides and the other two are epoxides.

In some applications, this compound(60827-45-4)Synthetic Route of C3H7ClO2 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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 Impact of Surface Chemistry on Copper Deposition in Mesoporous Silicon, the main research direction is surface chem copper deposition mesoporous silicon.COA of Formula: C9H11Cu.

An easy, efficient, and safe process is developed to metalize mesoporous Si (PSi) with Cu from the decomposition of a solution of mesitylcopper (CuMes) in an imidazolium-based ionic liquid (IL), [C1C4Im][NTf2]. The impregnation of a solution of CuMes in IL affords the deposition of metallic islands not only on the surface but also deep within the pores of a mesoporous Si layer with small pores <10 nm. Therefore, this process is well suited to efficiently and completely metalize PSi layers. An in-depth mechanistic study shows that metal deposition is due to the reduction of CuMes by surface silane groups rather than by Si oxidation as observed in aqueous or H2O-containing media. This could open a new route to the chem. metalization of PSi by less-noble metals difficult to attain by a conventional displacement reaction. In some applications, this compound(75732-01-3)COA of Formula: C9H11Cu is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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

Computed Properties of C9H11Cu. 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: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about First incorporation of the tetrahedral [Sn4]4- cluster into a discrete solvate Na4[Sn4]·(NH3)13 from solutions of Na4Sn4 in liquid ammonia. Author is Waibel, Markus; Faessler, Thomas F..

Treatment of solutions of Na4Sn4 in liquid NH3 with CuMes (Mes = mesityl) and 18-crown-6 afforded crystals Na4[Sn4]·(NH3)13. The structure features anionic units {Na7[Sn4]2} and sep. Na cations, both fully solvated by NH3 mols.

In some applications, this compound(75732-01-3)Computed Properties of C9H11Cu is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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 Structural characterization of magnesium organocuprates derived from Grignard reagents: CuI-based inverse crown ethers, the main research direction is magnesium organocuprate copper based inverse crown ether preparation structure; crystal structure magnesium organocuprate phenyl mesityl preparation; mol structure.Safety of Mesitylcopper(I).

The title compounds were prepared in 31-56% yields by reaction of Cu(I)Mes (Mes = 2,4,6-trimethylphenyl) with PhMgI or MesMgBr in PhMe-Et2O or PhMe-THF solvent mixtures and their structures were determined by x-ray crystallog. The structures of the title compounds are directly comparable to those of Li organocuprates, with the formal replacement of the Li cation with a Mg halide cation. Both types of organocuprates form contact ion pairs in weakly coordinating solvents and solvent-separated ion pairs in strongly coordinating solvents.

In some applications, this compound(75732-01-3)Safety of Mesitylcopper(I) is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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

Application In Synthesis of (2S)-(+)-3-Chloropropane-1,2-diol. So far, in addition to halogen atoms, other non-metallic atoms can become part of the aromatic heterocycle, and the target ring system is still aromatic. Compound: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about Inhibition of fructolysis in boar spermatozoa by the male antifertility agent (S)-α-chlorohydrin.

The male antifertility agent (S)-α-chlorohydrin  [60827-45-4] strongly inhibited the oxidative metabolism of fructose  [57-48-7] by boar spermatozoa in vitro. The result of this action, which has been deduced to be an inhibition of glyceraldehyde phosphate dehydrogenase, caused an accumulation of fructose 1,6-bisphosphate  [488-69-7] and the triose phosphates, and a decrease in substrate-level phosphorylation with a concomitant lowering of the energy charge potential of the spermatozoa. (R)-α-chlorohydrin  [57090-45-6] Had no inhibitory activity on fructolysis. A study of the comparative metabolism of (R)-[3-36Cl]-α-chlorohydrin and (R,S)-[3-36Cl]-α-chlorohydrin by boar spermatozoa showed that it is the (S)-isomer that specifically undergoes a process of oxidative metabolism to (R)-3-chlorolactaldehyde  [84607-54-5]. This endogenous oxidation product, which has the same absolute configuration as the substrate for glyceraldehyde phosphate dehydrogenase, may be the active metabolite of (S)-α-chlorohydrin that inhibits this enzyme. Exogenous (R,S)-3-chlorolactaldehyde  [84709-24-0] inhibited the oxidative metabolism of fructose by boar spermatozoa, apparently by a mechanism similar to that of (S)-α-chlorohydrin.

In some applications, this compound(60827-45-4)Application In Synthesis of (2S)-(+)-3-Chloropropane-1,2-diol is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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 Organoborane Acceptor-Substituted Polythiophene via Side-Group Borylation, the main research direction is polythiophene organoborane acceptor modification.Category: iodides-buliding-blocks.

Organoborane acceptor-modified polythiophene was prepared from silylated polythiophene via a new polymer modification strategy. The attachment of electron-deficient dimesitylboryl groups leads to a significant decrease of the LUMO levels as evidenced by a strong bathochromic shift in the UV-visible absorption and emission spectra and the observation of reversible reduction waves in the cyclic voltammogram at significantly less cathodic potentials than for the silylated precursor polymer. The modification of conjugated polymers with electron-deficient boryl groups provides a new design principle for the preparation of electronically interesting materials.

In some applications, this compound(75732-01-3)Category: iodides-buliding-blocks is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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

Formula: C10H8ClN4NaO2S. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Sodium ((4-aminophenyl)sulfonyl)(6-chloropyrazin-2-yl)amide, is researched, Molecular C10H8ClN4NaO2S, CAS is 23307-72-4, about A self-assembly pipette tip graphene solid-phase extraction coupled with liquid chromatography for the determination of three sulfonamides in environmental water. Author is Sun, Ning; Han, Yehong; Yan, Hongyuan; Song, Yanxue.

A sensitive, economical, and miniaturized self-assembly pipet tip graphene solid-phase extraction (PT-G-SPE) coupled with liquid chromatog. fluorescence detection (LC-FD) was developed for rapid extraction and determination of three sulfonamide antibiotics (SAs) in environmental water samples. The PT-G-SPE cartridge, assembled by packing 1.0 mg of graphene as sorbent into a 100 μL pipet tip, showed high adsorption capacity for the SAs owing to the large surface area and unique structure of graphene. The factors that affected the extraction efficiency of PT-G-SPE, including sample volume, pH, sorbent amount, washing solvent and eluent solvent were optimized. Good linearity for SAs was obtained in a range of 2-4000 pg mL-1 with correlation coefficients (r2) ≥0.9993. The recoveries of the SAs at three spiked levels ranged from 90.4 to 108.2% with RSD ≤6.3%. In comparison with other sorbents such as C18, HLB, SCX, PCX, and multiwalled carbon nanotubes, one advantage of using graphene as sorbent of pipet tip solid-phase extraction (PT-SPE) was that PT-G-SPE could adsorb larger sample volume (10 mL) at a small amount of sorbent (1 mg) and low solvent consumption with good extraction efficiency, which not only increased the fraction of analytes to LC and the sensitivity of SAs determination, but also reduced the cost and pollution.

In some applications, this compound(23307-72-4)Formula: C10H8ClN4NaO2S is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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 《Theory of chain-end activated degradation of heterodisperse polymers》. Authors are Gordon, Manfred.The article about the compound:2-Methylglutaronitrilecas:4553-62-2,SMILESS:N#CC(C)CCC#N).Related Products of 4553-62-2. Through the article, more information about this compound (cas:4553-62-2) is conveyed.

The theory treated steady-state degradation. Previous data on the initial degradation rates of poly-(methyl methacrylate) as a function of DPn (mean chain length) were fitted to asymptotic solutions for high and low DPn, but diverged largely from the solution for intermediate regions. Because of the simplicity of the solution for exponentially distributed polymer, a small random scission component, superposed on chain-end activated zipping, was treated with ample accuracy to fit published data for DPn decay during degradation of polystyrene. The data were not sufficiently accurate to distinguish between random splitting, weak-link scission, or scission following chain transfer to polymer. The rate curves on low-mol.-weight polystyrene at high temperature by Madorsky (C.A. 46, 10813h) were fitted to the improved theory, assuming termination by disproportionation. The data of Grassie and Kerr (C.A. 46, 7857f; 51, 12611d) for high-mol.-weight polystyrene at low temperature was fitted, assuming 1st-order radical termination.

In some applications, this compound(4553-62-2)Related Products of 4553-62-2 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Mesoporous carbon nitride supported 5,10,15,20-tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(II) as a selective and durable electrocatalyst for the production of hydrogen peroxide via two-electron oxygen reduction, published in 2021, which mentions a compound: 28903-71-1, mainly applied to carbon nitride supported cobalt tetramethoxyphenylporphyrin electrocatalyst hydrogen peroxide production; two electron oxygen reduction hydrogen peroxide production electrocatalyst, COA of Formula: C48H38CoN4O4.

Mesoporous carbon nitride (MCN) is synthesized using a mesoporous silica material (MCM-41) as a sacrificial template. 5,10,15,20-Tetrakis(4-methoxyphenyl)-21H,23H-porphine cobalt(II) (cobalt tetramethoxyphenylporphyrin, CoTMPP), which consists of methoxy groups as the electron-rich center is integrated with MCN and the resulting composite material (CoTMPP@MCN) without any further heat treatment is used for the electrocatalytic reduction of oxygen. CoTMPP@MCN shows a higher onset potential (0.65 and 0.84 V, resp., in 0.1 M HClO4 and 0.1 M KOH) for the oxygen reduction reaction (ORR) than the bare MCN (0.34 and 0.60 V, resp., in 0.1 M HClO4 and 0.1 M KOH). The ORR onset potential exhibited by CoTMPP@MCN is comparable to several non-pyrolyzed mono-nuclear metal porphyrin integrated on carbon-based supports in both acidic and basic media. Kinetic measurements of CoTMPP@MCN show high selectivity for two-electron oxygen reduction to H2O2 in both media. The H2O2 yield in terms of faradaic efficiency is measured to be 87.6 and 89.0%, resp., in 0.1 M HClO4 and 0.1 M KOH. CoTMPP@MCN exhibits amazingly high durability (minute changes in the onset potential and c.d. at high reduction potentials after 3000 CV cycles) facilitated by the surface coordination of CoTMPP through the nitrogen present on the MCN surface. Being highly selective and outstandingly durable, CoTMPP@MCN fulfills all necessary requirements for an economically efficient electrocatalyst for industrial hydrogen peroxide synthesis and related com. applications.

In some applications, this compound(28903-71-1)COA of Formula: C48H38CoN4O4 is unique.If you want to know more details about this compound, you can contact with the author or consult more relevant literature.

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