Month: April 2022

Jackson, H.; Rooney, F. R.; Fitzpatrick, R. W.; Gibson, K. H. published the article 《Characterization and antifertility activity in rats of S(+)-α-chlorohydrin》. Keywords: chlorohydrin stereoisomer antifertility activity.They researched the compound: (2S)-(+)-3-Chloropropane-1,2-diol( cas:60827-45-4 ).HPLC of Formula: 60827-45-4. Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:60827-45-4) here.

In male rats, a single oral dose of S(+)α-chlorohydrin (I) [60827-45-4] (12.5 mg/kg) produced temporary infertility following pairing with females from matings between days 2 and 6 after the I dose. A similar dose of the racemic mixture [96-24-2] was ineffective and the antifertility effect of the active isomer was comparable to that produced by a mixture of similar amounts of the S(+)- and R(-) [57090-45-6]-isomer or the corresponding dose of the racemate (25 mg/kg). However, the latter dose of the S(+)-isomer induced sterility during week 1, some degree of recovery of fertility in weeks 2-3 followed by permanent sterility. The S(+) isomer also maintained the reversible antifertility effect on epididymal spermatozoa at a daily oral dose of 5-10 mg/kg. Preparation of derivatives of I may provide compounds with high antifertility potency and low toxicity.

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

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.Bumagin, N. A.; Kalinovskii, I. O.; Beletskaya, I. P. researched the compound: Mesitylcopper(I)( cas:75732-01-3 ).Related Products of 75732-01-3.They published the article 《The palladium-catalyzed cross-coupling reactions of mesitylcopper with aryl iodides》 about this compound( cas:75732-01-3 ) in Journal of Organometallic Chemistry. Keywords: cross coupling reaction mesitylcopper; aryl iodide coupling mesitylcopper; biphenyl. We’ll tell you more about this compound (cas:75732-01-3).

Mesitylcopper reacts with aryl iodides p-IC6H4R (R = MeO, Cl, Ac, CN, NO2), containing both electron-withdrawing and electron-donating groups, in the presence of 1 equiv Bu4NX (X = Br, I) and 1 mol % of PhPdI(PPh3)2 to give cross-coupling products p-R1C6H4R (same R; R1 = mesityl) in high yields.

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

Related Products of 28903-71-1. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about Molecular approach for engineering interfacial interactions in magnetic/topological insulator heterostructures. Author is Cuxart, Marc G.; Valbuena, Miguel Angel; Robles, Roberto; Moreno, Cesar; Bonell, Frederic; Sauthier, Guillaume; Imaz, Inhar; Xu, Heng; Nistor, Corneliu; Barla, Alessandro; Gargiani, Pierluigi; Valvidares, Manuel; Maspoch, Daniel; Gambardella, Pietro; Valenzuela, Sergio O.; Mugarza, Aitor.

Controlling interfacial interactions in magnetic/topol. insulator heterostructures is a major challenge for the emergence of novel spin-dependent electronic phenomena. As for any rational design of heterostructures that rely on proximity effects, one should ideally retain the overall properties of each component while tuning interactions at the interface. However, in most inorganic interfaces, interactions are too strong, consequently perturbing, and even quenching, both the magnetic moment and the topol. surface states at each side of the interface. Here, we show that these properties can be preserved using ligand chem. to tune the interaction of magnetic ions with the surface states. By depositing Co-based porphyrin and phthalocyanine monolayers on the surface of Bi2Te3 thin films, robust interfaces are formed that preserve undoped topol. surface states as well as the pristine magnetic moment of the divalent Co ions. The selected ligands allow us to tune the interfacial hybridization within this weak interaction regime. These results, which are in stark contrast with the observed suppression of the surface state at the first quintuple layer of Bi2Se3 induced by the interaction with Co phthalocyanines, demonstrate the capability of planar metal-organic mols. to span interactions from the strong to the weak limit.

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

Category: iodides-buliding-blocks. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about The effect of the isomers of α-chlorohydrin and racemic β-chlorolactate on the rat kidney. Author is Porter, K. E.; Jones, A. R..

The (R)- [57090-45-6] and (S)-isomers [60827-45-4] of the male antifertility agent α-chlorohydrin have been synthesized. When administered to rats, the (R)-isomer induced a period of diuresis and glucosuria, whereas the (S)-isomer, which possesses the antifertility activity, had no detrimental action on the kidney. Neither of the isomers of α-chlorohydrin nor those of an active analog, 3-amino-1-chloropropan-2-ol, had any inhibitory activity on the oxidative metabolism of glucose  [50-99-7] or lactate  [50-21-5] in isolated kidney tubules. However, (RS)-β-chlorolactate  [1713-85-5], a metabolite common to both compounds, inhibited the oxidation of glucose, lactate, pyruvate  [127-17-3], and glutamate  [56-86-0] to CO2. It is proposed that the antifertility action of the (S)-isomers of α-chlorohydrin and 3-amino-1-chloropropan-2-ol is unrelated to the renal toxicity of the (R)-isomers, a toxic action involving the inhibition of oxidative metabolism by (S)-β-chlorolactate or a further product of this metabolite.

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

Wang, Yu-Heng; Schneider, Patrick E.; Goldsmith, Zachary K.; Mondal, Biswajit; Hammes-Schiffer, Sharon; Stahl, Shannon S. published the article 《Bronsted Acid Scaling Relationships Enable Control Over Product Selectivity from O2 Reduction with a Mononuclear Cobalt Porphyrin Catalyst》. Keywords: Broensted acid selectivity product oxygen reduction cobalt porphyrin catalyst.They researched the compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II)( cas:28903-71-1 ).Name: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II). Aromatic heterocyclic compounds can be divided into two categories: single heterocyclic and fused heterocyclic. In addition, there is a lot of other information about this compound (cas:28903-71-1) here.

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.

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

Electric Literature of C48H38CoN4O4. 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 Exploring illumination effect on the impedance spectroscopy and dielectric dispersion of 5, 10, 15, 20-tetrakis(4-methoxyphenyl)-21H, 23H-porphine cobalt(II)/silicon heterojunction photovoltaic. Author is Makhlouf, M. M.; Shehata, M. M..

Abstract: The dynamic properties of a hybrid heterojunction based on a small mol. of 5, 10, 15, 20-tetrakis (4-methoxyphenyl)-21H, 23H-porphine cobalt(II), CoTMPP, grown onto p-Si wafer have been studied using impedance spectroscopy (IS) at various frequency range (102-106 Hz) under different illumination intensities (0-24 mW/cm2) at room temperature The fabricated Al/p-Si/CoTMPP/Au heterojunction performs two relaxation processes associated with Al/p-Si and p-Si/CoTMPP interfaces are attributed to a Maxwell-Wagner-Sillars (MWS) effect causes charge accumulation at interfacial regions. With increasing illumination intensity, the MWS effect enhances and leads to more accumulated charges at the interfacial regions. Based on Nyquist plots fitting, the equivalent circuit of the fabricated device was modeled. The dielec. dispersion, elec. modulus, relaxation process and elec. conductivity were investigated under different illuminations. The present results revealed an excellent photoresponse and photo-resistive of the Al/p-Si/CoTMPP/Au device as a candidate for photovoltaic devices and optoelectronics applications.

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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: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II), is researched, Molecular C48H38CoN4O4, CAS is 28903-71-1, about Qualitative discrimination of yeast fermentation stages based on an olfactory visualization sensor system integrated with a pattern recognition algorithm, the main research direction is Saccharomyces fermentation olfactory visualization sensor system pattern recognition algorithm.Application In Synthesis of 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II).

The volatile organic compounds produced in yeast fermentation are directly related to the degree of fermentation and product quality. This study innovatively proposes a method based on an olfactory visualization sensor system combined with a pattern recognition algorithm to ensure the correct discrimination of the yeast fermentation stages. First, the olfactory visualization sensor system was developed based on a colorimetric sensor array, which was composed of twelve chem. dyes including eleven porphyrins or metalloporphyrins and one pH indicator on a C2 reverse silica-gel flat plate. It was employed as an artificial olfactory sensor system to obtain odor information during the process of yeast fermentation Then, principal component anal. (PCA) was used to reduce the dimension of the data, which were obtained from the olfactory visualization sensor system. Finally, three pattern recognition algorithms, i.e., support vector machine (SVM), extreme learning machine (ELM) and random forest (RF), were used to develop identification models for monitoring the yeast fermentation stages. The results showed that the optimum SVM model was superior to the ELM and RF models with a discrimination rate of 100% in the prediction process. The overall results sufficiently demonstrate that the olfactory visualization sensor system integrated with an appropriate pattern recognition algorithm has a promising potential for the in situ monitoring of yeast fermentation

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

Formula: C9H11Cu. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about 1,4-Addition of Diorganozincs to α,β-Unsaturated Ketones Catalyzed by a Copper(I)-Sulfonamide Combined System. Author is Kitamura, Masato; Miki, Takashi; Nakano, Keiji; Noyori, Ryoji.

A mixture of CuCN and N-benzylbenzenesulfonamide catalyzes the 1,4-addition of dialkylzincs or diarylzincs (Cu : Zn = 1 : 200 to 1 : 10000) to α,β-unsaturated ketones to give, after aqueous workup, the corresponding β-substituted ketones in nearly quant. yields. A range of cyclic enones having s-cis or s-trans geometries as well as conformationally flexible acyclic enones are usable as substrates. The Et group migrates more readily than the Me and Ph groups. CuOTf, CuO-t-C4H9, and mesitylcopper can be used in place of CuCN. The in situ-formed alkylzinc enolate, prior to aqueous workup, further undergoes an aldol reaction with aldehydes or Pd(0)-assisted coupling with allyl acetate, resulting in regio-controlled, vicinal carbacondensation products. A catalytic cycle is proposed on the basis of a kinetic study and a structural anal. of the zinc enolate product by NMR and mol. weight measurements.

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

HPLC of Formula: 60827-45-4. 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.

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

SDS of cas: 75732-01-3. 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: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Synthesis and structures of isopropyl-β-diketiminato copper(I) complexes. Author is Oguadinma, Paul O.; Schaper, Frank.

The reaction of N,N’-diisopropyl-2-amino-4-iminopent-2-ene (nacnaci-PrH, 1) either with CuOt-Bu or with a mixture of mesityl copper and 10% CuOt-Bu afforded, in the presence of PPh3, CN(C6Me2H3), or MeCN, the Lewis base coordinated complexes nacnaci-PrCuPPh3·0.5 C6H14 (2), nacnaci-PrCuCN(C6Me2H3) (3), and nacnaci-PrCu(NCMe) (4). Compounds 2, 3, and 4 were characterized by single-crystal x-ray diffraction studies. Compound 4 afforded two species in deuterated benzene in a 2:1 ratio, which were assigned to {nacnaci-PrCu}2(μ-NCMe) and nacnaci-PrCuNCMe (4). Upon addition of 5 equivalent of MeCN, the two sets collapsed into that of 4. No copper complexes were formed in the presence of styrene, stilbene, or diphenylacetylene.

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