Tag: M.W=100-200

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.

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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.

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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.

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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.

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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.

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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 《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.

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

Name: Mesitylcopper(I). 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 A heterometallic alkoxide combining hard and soft Lewis acids (Et3PO)2Ba2Cu4(OtBu)8. Author is Borup, Bjoern; Huffman, John C.; Caulton, Kenneth G..

Reaction of Cu(I) mesityl with [Ba(OtBu)2(tBuOH)2]4 occurs with replacement of all protons by Cu to give an insoluble solid of empirical formula BaCu2(OtBu)4. This reacts with Et3PO to give a soluble product characterized by spectroscopic, combustion anal., and x-ray diffraction as (Et3PO)2Ba2Cu4(OtBu)8, an elongated octahedron (trans Ba2) with OtBu groups doubly bridging eight edges. The phosphine oxide has broken up an apparent polymer by coordination of one Et3PO to each Ba.

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

Name: (2S)-(+)-3-Chloropropane-1,2-diol. 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 Formation of the active antifertility metabolite of (S)-α-chlorohydrin in boar sperm. Author is Jones, A. R.; Stevenson, D..

Incubation of boar sperm with (S)-α-chlorohydrin (I) [60827-45-4] resulted in formation of (S)-3-chlorolactaldehyde (II) [86747-03-7]. I inhibited the production of 14CO2 when 14C-labeled fructose  [57-48-7] was the substrate but had no effect when 14C-labeled glycerol  [56-81-5] was used. (R,S)-3-Chlorolactaldehyde  [84709-24-0], however, inhibited CO2 formation from glycerol. The oxidation of 14C-labeled glycerol-3-phosphate  [57-03-4] was similarly inhibited by I confirming that the presence of glycerol but not its metabolites prevented the oxidation of I to II. Glycerol reversed the inhibition of fructose metab by I. Addnl., preincubation of sperm with I inhibited glycerol metabolism Apparently, I is metabolized to II in sperm by an enzyme involved in the oxidation of glycerol to glyceraldehyde. The presence of glycerol decreases the activity of this enzyme towards I thereby preventing formation of II, an inhibitor of glyceraldehyde 3-phosphate dehydrogenase  [9001-50-7].

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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 Soluble Zintl Phases A14ZnGe16 (A = K, Rb) Featuring [(η3-Ge4)Zn(η2-Ge4)]6- and [Ge4]4- Clusters and the Isolation of [(MesCu)2(η3,η3-Ge4)]4-: The Missing Link in the Solution Chemistry of Tetrahedral Group 14 Element Zintl Clusters, the main research direction is zinc germanium potassium rubidium Zintl preparation electronic structure; crystal structure zinc potassium rubidium germanide Zintl cluster.Category: iodides-buliding-blocks.

The number of Zintl phases containing polyhedral clusters of tetrel elements that are accessible for chem. reactions of the main-group element clusters is rather limited. The synthesis and structural characterization of two novel ternary intermetallic phases A14ZnGe16 (A = K, Rb) are presented, and their chem. reactivity was studied. The compounds can be rationalized as Zintl phases with 14 alkali metal cations A+ (A = K, Rb), two tetrahedral [Ge4]4- Zintl anions, and one anionic heterometallic [(Ge4)Zn(Ge4)]6- cluster per formula unit. The Zn-Ge cluster comprises two (Ge4) tetrahedra linked by a Zn atom, with one (Ge4) tetrahedron coordinating with a triangular face (η3) and the other one with an edge (η2). [(η3-Ge4)Zn(η2-Ge4)]6- is a new isomer of the [(Ge4)Zn(Ge4)]6- anion in Cs6ZnGe8. The phases dissolve in liquid NH3 and thus represent rare examples of soluble Zintl compounds with deltahedral units of Group 14 element atoms. Compounds with tetrahedral [E4]4- species were previously isolated from solution for E = Si, Sn, and Pb, and the current study provides the missing link for E = Ge. Reaction of an NH3 solution of K14ZnGe16 with MesCu (Mes = 2,4,6-Me3C6H2) in the presence of [18]-crown-6 (1,4,7,10,13,16-hexaoxacyclooctadecane) yielded crystals of [K([18]-crown-6)]2K2[(MesCu)2Ge4](NH3)7.5 with the polyanion [(MesCu)2Ge4]4-. This MesCu-stabilized tetrahedral [Ge4]4- cluster also completes [(MesCu)2Si4-xGex]4- clusters, which were previously isolated from solution for x = 0 and 0.7, as the end member with x = 4. The electronic structures of [(Ge4)Zn(Ge4)]6- and [(MesCu)2Ge4]4- were studied in terms of a MO description and analyses of the electron localization functions. The results are compared with band structure calculations for the A14ZnGe16 phases (A = K, Rb).

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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: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about Potential impacts of deep-sea injection of CO2 on marine organic chemistry, the main research direction is deep sea injection carbon dioxide effect marine organic chem; carbon dioxide epoxide effect marine organic chem seawater injection.COA of Formula: C3H7ClO2.

The extent of reaction of epoxides in salt water changed markedly following introduction of gaseous or liquid CO2. Higher concentrations of β-chlorohydrins in carbonated salt water vs. concentrations in salt water alone were attributed to greater acidity of the aqueous phase. This suggested regimes for sequestering CO2 by deep sea injection should account for potential effects on marine organic chem. No evidence was obtained for enhanced nucleophilicity of Cl- through potential desolvation at the CO2-water interface.

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