Month: April 2022

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.Zhang, Hao; Zheng, Weiwei; Wang, Xia; Liu, Li; Qu, Weidong researched the compound: (2S)-(+)-3-Chloropropane-1,2-diol( cas:60827-45-4 ).Safety of (2S)-(+)-3-Chloropropane-1,2-diol.They published the article 《Inhibitory effect of (s)-chlorohydrin on rat sperm motility and hyperactivation》 about this compound( cas:60827-45-4 ) in Weisheng Yanjiu. Keywords: chlorohydrin sperm motility hyperactivation. We’ll tell you more about this compound (cas:60827-45-4).

The effects of (S)-α-chlorohydrin (SACH) on rat epididymal sperm motility and hyperactivation and the mechanisms of the effects were studied. 20 Adult male Sprague-Dawley rats were divided randomly into 4 groups and dosed orally with 0, 2.5, 5.0, and 10mg/kg BW SACH for 52 days. After the cauda epididymal sperm were incubated under a capacitating condition for 5h, sperm motility and hyperactivation parameters were obtained by computer-assisted sperm anal. (CASA), and sperm-specific glyceraldehyde 3-phosphate dehydrogenase (GAPDS) activity, ATP (ATP), and cyclic adenosine monophosphate (cAMP) were assayed. The protecting effect of pentoxifylline (PTF) against SACH was also tested. The sperm from the SACH-treated rats showed significant decreases in curvilinear velocity (VCL), average path velocity (VAP), straight line velocity (VSL), and amplitude of lateral head movement (ALH) (P<0.01 of all), and an increase in linearity (LIN) (P<0.01). The SACH-treated rats had much less sperm population with VCL≥400μm/s or LIN≤20% than that of the control (P<0.05 and P<0.01, resp.), indicating that SACH diminishes hyperactivation of rat sperm. GAPDS activities were inhibited by SACH, and decreasing trends of ATP and cAMP levels were observed PTF rescued the cAMP level which was depressed by SACH, and alleviated partly the inhibition of sperm motility and hyperactivation. SACH impairs the motility and hyperactivation of rat sperm, which might be related to inhibition of GAPDS by SACH and subsequent defects of ATP and cAMP. Compound(60827-45-4)Safety of (2S)-(+)-3-Chloropropane-1,2-diol received a lot of attention, and I have introduced some compounds in other articles, similar to this compound((2S)-(+)-3-Chloropropane-1,2-diol), if you are interested, you can check out my other related 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 Influence of the medium on hydrogenation of 2-methylglutaronitrile. Selective access to 2-methylpentane diamine or β-picoline after dehydrogenation, published in 1995, which mentions a compound: 4553-62-2, Name is 2-Methylglutaronitrile, Molecular C6H8N2, Application In Synthesis of 2-Methylglutaronitrile.

A conference. The 2-methylglutaronitrile (I) is obtained as a byproduct of the important adiponitrile production It, nevertheless, gives rise to interesting chem. transformations. In particular, its hydrogenation can produce 2-methylpentanediamine, a substitute for hexamethylenediamine in polyamide or polyurethane compounds The 3-methylpiperidine, also produced by hydrogenation of I, can be an interesting intermediate for β-picoline production involved in the synthesis of PP vitamin. Using Raney nickel as the catalyst, hydrogenation reactions were performed in various liquid phase compositions 2-Methylpentanediamine was obtained very selectively. The reaction product can be used itself as solvent. Addition of dry ammonia in ethanol in the place of isopropanol / KOH or NaOH medium leads to a mixture of 2-methylpentanediamine, 3-methylpiperidine and some heavy byproducts. This mixture can be cyclized and dehydrogenated to β-picoline (3-methylpyridine) on a special and very efficient Pd/SiO2 catalyst. The two processes have been patented by Rhone-Poulenc.

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

Synthetic Route of 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 Synthesis of bimetallic nanoparticles in ionic liquids: Chemical routes vs physical vapor deposition. Author is Helgadottir, I. S.; Arquilliere, P. P.; Brea, P.; Santini, C. C.; Haumesser, P.-H.; Richter, K.; Mudring, A.-V.; Aouine, M..

Ionic liquids (ILs) can be used to generate and stabilize metallic nanoparticles (MNPs) by several phys. and chem. routes. Here, the simultaneous decomposition of Ru and Cu organometallic precursors in IL is shown to yield core-shell Ru@CuNPs with smaller diameters and narrower size distributions than the corresponding monometallic NPs, in a broad range of Ru:Cu compositions They are probably formed by rapid nucleation of Ru cores followed by decomposition of the Cu precursor on their surface. This effect forces the formation of a bimetallic structure that does not form with the use of purely phys. processes such as PVD. These Cu, Ru, and Ru@CuNPs could be used for the formation of seed and barrier layers for the metalization of advanced interconnect structures.

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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 Synthesis of novel copper-rare earth BINOLate frameworks from a hydrogen bonding DBU-H rare earth BINOLate complex.Safety of Mesitylcopper(I).

The preparation of a novel H-bonding DBU-H+ BINOLate Rare Earth Metal complex [RE(S-binol)3·3DBU-H, where RE = La, Pr, and Eu; DBU = 1,8-Diazabicyclo(5.4.0)undec-7-ene] enabled the synthesis of the first copper-Rare Earth Metal BINOLate complex (CuDBU-REMB, Cu3RE(S-binol)3(DBU)3). CuDBU-REMB was compared to the analogous Li complex using x-ray crystallog. and Exchange NMR spectroscopy (EXSY). The results provide insight into the role of the secondary metal cation in the framework’s stabilization.

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

Ma, Wenjie; Wu, Fei; Yu, Ping; Mao, Lanqun published the article 《Carbon support tuned electrocatalytic activity of a single-site metal-organic framework toward the oxygen reduction reaction》. Keywords: carbon metal organic framework electrocatalytic activity oxygen reduction reaction.They researched the compound: 5,10,15,20-Tetrakis (4-methoxyphenyl)-21H,23H-porphine cobalt (II)( cas:28903-71-1 ).Recommanded Product: 28903-71-1. 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.

Metal-organic frameworks (MOFs) possess fantastic features such as structural diversity, tunable accessible pores and atomically dispersed active sites, holding tremendous potential as highly versatile platforms for fabricating single-site catalysts. The electrocatalytic activity of single-site MOFs can be improved and tuned via several approaches; however, the exploitation of different carbon supports to modulate the nature of single active sites in MOFs for electrocatalysis has not been reported. Here, we find that the electrocatalytic activity of single-site MOFs toward the oxygen reduction reaction (ORR) can be tuned by using carbon nanomaterials, i.e., carbon nanotubes and graphene, as supports through MOF-support interactions in the manner of geometric and electronic effects. The introduction of MOF-support interactions not only greatly improves the electrocatalytic performance of MOFs toward the ORR in terms of onset and half-wave potentials and c.d., but also alters the reaction pathway of the ORR. This finding provides a new horizon for the design and synthesis of single-site MOFs for electrocatalysis.

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

Recommanded Product: Mesitylcopper(I). The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Copper/α-Ketocarboxylate Chemistry With Supporting Peralkylated Diamines: Reactivity of Copper(I) Complexes and Dicopper-Oxygen Intermediates. Author is Gupta, Aalo K.; Tolman, William B..

To further understand Cu-promoted oxidation reactions, the Cu(I) complexes LCuX (L = N,N’-di-tert-butyl-N,N’-dimethylethylenediamine; X = benzoylformate (BF) or p-nitro-benzoylformate) were synthesized, fully characterized by x-ray crystallog. and spectroscopy in solution, and their reactivity with O2 at -80° examined Oxidative decarboxylation of the α-ketocarboxylate ligand was observed, but only to a significant extent when cyclohexene, cyclooctene, or MeCN was present. Spectroscopic and conductivity data are consistent with mechanistic postulates involving displacement of the α-ketocarboxylate by the additives to a small extent, followed by oxygenation of the LCu(I) moiety to yield Cu-O species that subsequently induce decarboxylation. To test these hypotheses, spectroscopic and kinetic studies of the reactions of Bu4NBF with preformed μ-η2:η2-peroxodicopper(II) and/or bis(μ-oxo)dicopper(III) complexes supported by L or N,N,N’,N’-tetramethylpropylenediamine were performed. In an illustration of a new mode of reactivity for such dicopper-O cores, decarboxylation of the added α-ketocarboxylate was observed and the intermediacy of a carboxylate-bridged μ-η2:η2-peroxodicopper(II) complex was implicated.

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

Category: iodides-buliding-blocks. The reaction of aromatic heterocyclic molecules with protons is called protonation. Aromatic heterocycles are more basic than benzene due to the participation of heteroatoms. Compound: Mesitylcopper(I), is researched, Molecular C9H11Cu, CAS is 75732-01-3, about Direct Catalytic Asymmetric Aldol Reaction of an α-Azido Amide. Author is Weidner, Karin; Sun, Zhongdong; Kumagai, Naoya; Shibasaki, Masakatsu.

α-Azido 7-azaindolinylamide I underwent diastereoselective and enantioselective aldol additions to ortho-substituted aryl aldehydes 2-RC6H4CHO (R = F3C, Br, I, O2N, PhCC, F) in the presence of mesitylcopper and either a nonracemic bis(diphenylphospholanyl)ethane or a nonracemic bis(diarylphosphino)binaphthalene ligand to yield either nonracemic syn- or anti-α-azido-β-hydroxy acyl 7-azaindolinylamides such as II (R = F3C, Br, I, O2N, PhCC, F; R1 = N3, H; R2 = H, N3) in 74-98% yields, 53:47->98:2 dr, and 89-99% ee. Aromatic aldehydes lacking ortho substituents underwent diastereoselective and enantioselective aldol addition reactions with I to yield syn-α-azido-β-hydroxy amides only. Alkynals underwent diastereoselective and enantioselective aldol addition reactions with I to yield anti-α-azido-β-hydroxy amides; aldol addition of I to hydrocinnamaldehyde gave product with no diastereo- or enantioselectivity. II (R = F3C; R1 = N3; R2 = H) was converted to the corresponding nonracemic α-azido-β-hydroxy carboxylic acid and Me carboxylate and to a nonracemic 3-aryl-2-aziridinecarboxylic acid; the 7-azaindoline byproduct could be recovered. The structures of II (R = F3C, PhCC; R1 = N3; R2 = H), an aziridine derived from II (R = F3C; R1 = N3; R2 = H), and the tert-Bu carbonate ester of a racemic anti-α-azido-β-hydroxy 7-azaindolinylamide derived from 3-(4-fluorophenyl)-2-propynal were determined by X-ray crystallog.

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

SDS of cas: 2058236-52-3. 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: (S)-4-Benzyl-2-(isoquinolin-1-yl)-4,5-dihydrooxazole, is researched, Molecular C19H16N2O, CAS is 2058236-52-3, about Enantioselective Palladium-Catalyzed Oxidative Cascade Cyclization of Aliphatic Alkenyl Amides. Author is Du, Wei; Gu, Qiangshuai; Li, Yang; Lin, Zhenyang; Yang, Dan.

The catalyst system of Pd(TFA)2/(S,S)-diPh-pyrox is reported to promote the highly efficient enantioselective oxidative cascade cyclization of alkene-tethered aliphatic acrylamides under mild aerobic conditions. Pyrrolizidine derivatives were synthesized in good yield and excellent enantioselectivity. D-labeling experiments revealed that the reaction proceeded through an anti-aminopalladation (anti-AP) pathway with high selectivity. The transition states for the anti-AP step account for the observed enantioselectivity.

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

Electric Literature of C3H7ClO2. 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 Hydrolytic kinetic resolution of terminal epoxides catalyzed by fluorous chiral Co(salen) complexes. Author is Cavazzini, Marco; Quici, Silvio; Pozzi, Gianluca.

Cobalt complexes of fluorous chiral salen ligands have been synthesized and tested as catalysts in the hydrolytic kinetic resolution of terminal epoxides. Whereas the activity of heavily fluorinated complexes was found to be rather low, a light fluorous complex I was shown to be an efficient and highly selective catalyst for this asym. ring-opening reaction. Several strategies for the isolation of reaction products and the recovery of the fluorous catalyst are also discussed.

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

Product Details of 75732-01-3. 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 Facile assembly of a Cu9 amido complex: a new tripodal ligand design that promotes transition metal cluster formation. Author is Keen, Alana L.; Doster, Meghan; Han, Hua; Johnson, Samuel A..

A tripodal amido ligand, [P(CH2NArCF3)3]H3 (ArCF3 = C6H3-3,5-(CF3)2), with a central non-chelating phosphorus donor allows for the facile assembly of a pentane soluble organometallic copper cluster, [P(CH2NArCF3)3]2Cu9(μ-2,4,6-Me3C6H2)3, with a central copper atom surrounded by a nonplanar chain of eight copper atoms and two terminal amido-copper bonds.

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