Tag: M.W=100-200

Application of 4553-62-2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 2-Methylglutaronitrile, is researched, Molecular C6H8N2, CAS is 4553-62-2, about Deactivation during the hydrogenation of 2-methylglutaronitrile to β-picoline. Author is Lanini, S.; Prins, R..

A strong correlation between conversion and product selectivity was found for the production of β-picoline from 2-methylglutaronitrile in a single-stage process. The conversion had to be maintained at a very high level in order to keep the intermediates concentration low, thus preventing the formation of coke precursors by condensation reactions. The intermediates concentration on the metal surface was strongly influenced by the reaction temperature and the partial pressures. Above 598 K, the selectivity for condensation products decreased sharply, but also the overall conversion decreased. This neg. effect could be compensated by an increased hydrogen partial pressure.

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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.Boukebbous, K.; Merle, N.; Larabi, C.; Garron, A.; Darwich, W.; Laifa, E. A.; Szeto, K.; De Mallmann, A.; Taoufik, M. researched the compound: Mesitylcopper(I)( cas:75732-01-3 ).Related Products of 75732-01-3.They published the article 《Silica supported copper nanoparticles prepared via surface organometallic chemistry: active catalysts for the selective hydrogenation of 2,3-dimethylbutadiene》 about this compound( cas:75732-01-3 ) in New Journal of Chemistry. Keywords: dimethylbutadiene silica copper nanoparticle hydrogenation catalyst SOMC. We’ll tell you more about this compound (cas:75732-01-3).

2,3-Dimethylbutadiene can be highly selectively hydrogenated to 2,3-dimethyl-1-butene with a new catalyst based on silica supported copper nanoparticles (Cu-NPs) prepared via surface organometallic chem. Mesityl-copper was firmly grafted onto silica and the reduction of the resulting surface species under hydrogen at 350 °C led to well-dispersed Cu-NPs. Prior to catalytic tests, the final catalysts as well as the intermediates were characterised by DRIFT, SS NMR, EPR, TEM, XRD and elemental analyses.

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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 An unusually stable octanuclear σ-mesityl-bridged μ4-oxo-copper(I) complex encapsulated by a pyrazolate-based compartmental ligand scaffold, published in 2008-04-21, which mentions a compound: 75732-01-3, mainly applied to copper octanuclear mesityl oxo bridged pyridine amine pyrazolate preparation; arylcopper oxo bridged pyrazolate aminomethylpyridine octanuclear complex preparation structure; crystal structure arylcopper oxo bridged pyrazolate aminomethylpyridine octanuclear complex; mol structure arylcopper oxo bridged pyrazolate aminomethylpyridine octanuclear complex, Application In Synthesis of Mesitylcopper(I).

Reaction of a new compartmental pyrazole-derived hexadentate chelating ligand 4-Ph-3,5-(C5H4N-2-CH2NMeCH2)2 (2, HL) with four equiv of mesitylcopper and stoichiometric amounts of dioxygen lead to the formation of a remarkably stable organometallic framework [[(μ-L)Cu2]2(μ-mesityl)4Cu4(μ4-O)] (3, shown as I) that can be described as a heteroleptic O-centered cuprate anion [(MesCuI)4(μ4-O)]2- linked via σ-mesityl-bridges to two surrounding binuclear CuI-pyrazolate clamps.

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

Lanini, S.; Prins, R. published an article about the compound: 2-Methylglutaronitrile( cas:4553-62-2,SMILESS:N#CC(C)CCC#N ).Application In Synthesis of 2-Methylglutaronitrile. 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:4553-62-2) through the article.

Silica-supported palladium, rhodium and platinum were active catalysts in the production of β-picoline by the vapor phase hydrogenation of a tech. mixture of 2-methylglutaronitrile and 2-ethylsuccinonitrile, whereas Ni/SiO2 and Ru/SiO2 showed no appreciable activity. On the fresh Pd, Rh and Pt catalysts, β-picoline was obtained in a good yield and the complete conversions pointed to extremely high reaction rates. Accordingly, transport limitations due to film and pore diffusion were observed Activity and selectivity of the catalysts decreased with time on stream, while catalyst stability decreased in the order Pt > Pd > Rh. A large number of byproducts was formed, mainly from hydrogenolysis or intermol. imine-amine condensation. Pt catalysts displayed the highest hydrogenolysis activity, Pd catalysts tended to condensations, while the behavior of Rh-containing catalysts was in between those of Pd and Pt catalysts. Stability and selectivity were influenced by the nature of the substrate, metal dispersion, basicity of the support and average metal ensemble size. The presence of 2-ethylsuccinonitrile in the feed led to the formation of pyrroles and polymers, but was not responsible for the observed deactivation, which was due to coke deposits formed by highly reactive intermediates.

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

Reference of (2S)-(+)-3-Chloropropane-1,2-diol. 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: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about Activities of various 6-chloro-6-deoxysugars and (S)α-chlorohydrin in producing spermatocoeles in rats and paralysis in mice and in inhibiting glucose metabolism in bull spermatozoa in vitro. Author is Ford, W. C. L.; Waites, G. M. H..

6-chloro-6-deoxyglucose (I) [40656-44-8], 6-chloro-6-deoxymannose  [4990-81-2], 6-chloro-6-deoxyfructose  [66451-66-9], 6-chloro-6-deoxyglucitol  [76986-26-0], 6-chloro-6-deoxygalactose  [18465-32-2], and (S)α-chlorohydrin  [60827-45-4] all produced spermatoceles in the efferent ducts and epididymis of the rat and were neurotoxic in the mouse, but only α-chlorohydrin caused substantial inhibition of D-glucose  [50-99-7] metabolism in bull spermatozoa in vitro. The relative potencies of the compounds in producing spermatoceles reflected their activities as reversible antifertility agents in the rat but compared to the others 6-chloro-6-deoxymannose was considerably less neurotoxic to mice than might have been anticipated from its contraceptive dose. Thus, different metabolites may be responsible for causing the antifertility and the neurotoxic effects.

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

Electric Literature of C9H11Cu. 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 Main-Group-Metal and Transition-Metal Complexes Containing Fluorinated β-Diketiminate Ligands. Author is Huse, Kevin; Woelper, Christoph; Schulz, Stephan.

The synthesis of fluorinated β-diketimine LH (1) (L = HC[C(CF3)NC6F5]2) and its reactions with main-group-metal and transition-metal complexes, yielding LAlMe2 (4), LZnEt (5), LCu(C6D6) (6) and LCuCO (7), is reported. 1-7 Were characterized by IR and NMR spectroscopy (1H, 13C, 19F), elemental anal. and single-crystal x-ray diffraction. The C6F5 substituents strongly reduce the π-back-bonding capacity of the β-diketiminate ligand as was shown for 7 by IR spectroscopy.

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

Recommanded Product: (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 Porphyrin with circularly polarized luminescence in aggregated states. Author is Wang, Rongqiao; Chen, Shibing; Chen, Qiaoru; Guo, Hongyu; Yang, Fafu.

Porphyrin with circularly polarized luminescence (CPL) in aggregated state was seldom presented due to the strong aggregation-caused quenching (ACQ) effect at aggregation. This work designed and synthesized a novel porphyrin derivative (CPL-P) with good CPL behavior in aggregated states based on the strong AIE-FRET effect and good chirality transfer of liquid crystalline porphyrin, which was constructed by using porphyrin unit as core with four AIE cyanostilbene groups bearing peripheral chiral alkyl chains. CPL-P exhibited orderly hexagonal columnar mesophase between 62.5°C and 113.2°C. It displayed excellent fluorescence emission at 640-760 nm in aggregated states due to the AIE-FRET effect between cyanostilbene unit and porphyrin moiety. Moreover, CPL-P showed the strong CD and CPL properties in aggregated states based on the effective chiral transfer of the spiral liquid crystalline self-assembly. The |glum| value for mesophase attained 6.6 x 10-3 based on the combining effect of AIE-FRET and chiral transfer. This research supplied a new strategy for transferring typical achiral porphyrin with ACQ effect to luminescent mol. with good CPL behavior in aggregated state.

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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: 4553-62-2, is researched, Molecular C6H8N2, about Microbial degradation of nitrile compounds. Part IV. Fungal degradation of triacrylonitrile, the main research direction is triacrylonitrile metabolism Fusarium; nitrile metabolism Fusarium.Recommanded Product: 2-Methylglutaronitrile.

Two fungal strains (TG-1 and TG-2) which utilized triacrylonitrile (I) as N source were isolated from soil and identified as Fusarium merismoides merismoides and F. solani solani, resp. F. merismoides TG-1 could utilize I, adiponitrile, glutaronitrile, diacrylonitrile, and 2,4-dicyano-1-butene as N sources. Conditions for cultivation of the strain were studied. Degradation products of I were a mixture of 5,7-dicyanoheptanoic acid (62%) and 4,7-dicyanoheptanoic acid (II) (38%). A mixture of 5,7-dicyanoheptanoic acid (11%) and II (89%) was also obtained from the culture broth of F. solani TG-2.

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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: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about Biodegradation of 3-Chloro-1,2-propanediol with Saccharomyces cerevisiae.Synthetic Route of C3H7ClO2.

A novel enzymic dehalogenating activity of 3-chloro-1,2-propanediol (3-MCPD) with Saccharomyces cerevisiae (baker’s yeast) is reported. All bioconversion assays were carried out under aerobic conditions at 28°, and the kinetics were monitored. The biodegradation was performed at different pH values (6.2, 7.0, and 8.2), in the presence and absence of glucose, using racemic 3-MCPD at two different concentrations (7.3 μmol/L and 27 mmol/L). Optimal conversion (68%) of racemic (R,S)-3-MCPD at a concentration of 27 mmol/L was achieved after 48 h of reaction time, at pH 8.2, and in the presence of glucose. At a concentration of 7.3 μmol/L, 73% degradation was observed after 72 h, at pH 8.2 and in the absence of glucose. Under the same exptl. conditions, the conversion of pure (S)-3-MCPD (85%) was higher than that of the (R)-enantiomer (60%).

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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 4(2)-Methoxyphenyl glycerol ethers in the synthesis of non-racemic di-O,O-acylglycerols, published in 2008-11-30, which mentions a compound: 60827-45-4, mainly applied to enantioselective hydrolysis epichlorohydrin catalyst glyceride synthesis resolution; methoxyphenyl glyceride ether synthesis glycerol chloropropanediol resolution aryloxypalmitoyl, Recommanded Product: (2S)-(+)-3-Chloropropane-1,2-diol.

Effective methods for the synthesis of non-racemic 4- and 2-methoxyphenyl glycerol ethers from non-racemic 3-chloropropanediols and by direct resolution of the racemate, resp., were developed. Some existing discrepancies related to the to chiroptical properties of their derivatives were eliminated. Both ethers were used to synthesize non-racemic 3-O-aryloxy-1,2-di-O’,O”-palmitoyl glycerols.

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