Category: chiral-catalyst

Electric Literature of 250285-32-6. Chemistry is an experimental science, and the best way to enjoy it and learn about it is performing experiments.Introducing a new discovery about 250285-32-6, Name is 1,3-Bis(2,6-diisopropylphenyl)imidazolium chloride

A user-friendly and general mechanochemical method was developed to access rarely described NHC (N-heterocyclic carbene) silver(i) complexes featuring N,N-diarylimidazol(idin)ene ligands and non-coordinating tetrafluoroborate or hexafluorophosphate counter anions. Comparison with syntheses in solution clearly demonstrated the superiority of the ball-milling conditions.

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Chiral Catalysts,
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In an article, published in an article, once mentioned the application of 14098-44-3, Name is Benzo-15-crown-5,molecular formula is C14H20O5, is a conventional compound. this article was the specific content is as follows.Application In Synthesis of Benzo-15-crown-5

We describe and illustrate a technique, potentiometric ionophore-modulation immunoassay (PIMIA), for the measurement of antibodies with conjugate based membrane electrodes.Fundamental operating variables for the technique are examined and demonstrated for the case of antibodies to the cardiac drug digoxin.Detection limits in the mug/mL range, with high selectivity over other antibodies and proteins, are readily attained.Through a competitive binding approach, the selective measurement of digoxin itself is also shown to be possible with this technique.

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Reference：
Chiral Catalysts,
Chiral catalysts – SlideShare

Synthetic Route of 33100-27-5, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 33100-27-5, C10H20O5. A document type is Patent, introducing its new discovery.

A 1-cycloalkyl-1,8-naphthylidin-4-one derivative having the formula (I): wherein R1 indicates a substituted or unsubstituted cycloalkyl group or a substituted or unsubstituted heterocycloalkyl group,R2, R3, and R4 independently indicate a hydrogen atom, a substituted or unsubstituted lower alkyl group, or a halogen atom,X indicates a group NR5R6 or a group OR7, wherein R5 and R6 independently indicate a hydrogen atom, a substituted or unsubstituted lower alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group, and R7 indicates a hydrogen atom, a substituted or unsubstituted lower alkyl group, or a substituted or unsubstituted cycloalkyl group or a pharmaceutically acceptable salt or solvate thereof and a type IV phosphodiesterase inhibitor containing the same as an effective component.

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Reference：
Chiral Catalysts,
Chiral catalysts – SlideShare

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.21436-03-3, Name is (1S,2S)-Cyclohexane-1,2-diamine, molecular formula is C6H14N2. In a Article，once mentioned of 21436-03-3, Computed Properties of C6H14N2

The synthesis of novel diastereomeric [2]-catenanes derived from beta-cyclodextrin and an enantiomeric trianglamine is described using a [3+3] cyclocondensation reaction.

The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 21436-03-3 is helpful to your research., Computed Properties of C6H14N2

Reference：
Chiral Catalysts,
Chiral catalysts – SlideShare

Electric Literature of 1436-59-5, An article , which mentions 1436-59-5, molecular formula is C6H14N2. The compound – cis-Cyclohexane-1,2-diamine played an important role in people’s production and life.

Disclosed are a class of platinum compounds of malonic acid derivatives having a leaving group containing an amino or alkylamino, and pharmaceutically acceptable salt thereof, preparation method thereof and pharmaceutical composition containing the compounds. Also disclosed are uses of the compounds for treating cell proliferative diseases especially cancers. The platinum compounds of the present invention have high solubility in water, low toxicity and strong anti-tumor effect.

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Reference：
Chiral Catalysts,
Chiral catalysts – SlideShare

Related Products of 33100-27-5, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 33100-27-5, C10H20O5. A document type is Article, introducing its new discovery.

Halide abstraction reactions of MCl3 (M = Sc, Y or La) with SbCl5 in the presence of a crown ether provided a series of anhydrous cationic M(III)-crown compounds of the types (12-crown-4 = 1,4,7,10-tetraoxacyclododecane), 3 (M = Y or La) and 3 (M = Y or La).Analytical and spectroscopic (1H and 13C NMR) characterisation of these compounds supports their formulation as hexachloroantimonate(V) salts.The structure of has been determined by X-ray diffraction.Crystals are orthorhombic, space group Pbca with a = 17.015(10), b = 13.296(6), c = 22.236(12) Angstroem and Z = 8.The cation has a threaded structure with an essentially linear ScCl2(+) unit .All the oxygen atoms of the oxacrown ligand are coplanar and are bonded to the central scandium atom, Sc-O 2.166(4) – 2.223(4) Angstroem, (mean) 2.188 Angstroem with the benzene ring tilted out of this plane at an angle of 24.9 deg.The resulting geometry of the seven-co-ordinate scandium atom is pentagonal bipyramidal.

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Chiral Catalysts,
Chiral catalysts – SlideShare

Reference of 39648-67-4, Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 39648-67-4, Name is (R)-4-Hydroxydinaphtho[2,1-d:1′,2′-f][1,3,2]dioxaphosphepine 4-oxide, molecular formula is C20H13O4P. In a Article，once mentioned of 39648-67-4

Diquats with extremely high racemization barriers with DeltaG?theor of 233 kJ mol?1 at 180 C are described. Reported configurational robustness is due to a combination of two structural features: the rigid o-xylylene tether connecting the nitrogen atoms and the presence of two substituents in the bay region of the bipyridinium scaffold. The straightforward synthesis of diquats, plus facile resolution and derivatization make them attractive for chiral application studies. This is demonstrated by: 1) synthesis of the first non-racemic diquat dyes with pronounced chiroptical properties, and 2) capability of diquats to interact stereospecifically with chiral molecules. This suggests potential for diquat derivatives to be used as chiral selectors in separation methods.

The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 39648-67-4 is helpful to your research., Reference of 39648-67-4

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Chiral Catalysts,
Chiral catalysts – SlideShare

Reference of 250285-32-6, Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 250285-32-6, C27H37ClN2. A document type is Article, introducing its new discovery.

The anionic N-heterocyclic dicarbenes (NHDCs) I are demonstrated to be a convenient platform from which abnormal NHC (aNHC)-borane complexes V-VII may be prepared. The anionic NHDC binuclear complex II and the aNHC mononuclear adduct VII can be interconverted through lithiation and protonation, respectively, of the C2 carbon atom of the imidazole ring.

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Chiral Catalysts,
Chiral catalysts – SlideShare

Children learn through play, and they learn more than adults might expect. Science experiments are a great way to spark their curiosity, get their minds active, and encourage them to do something that doesn’t involve a screen. 14187-32-7, C20H24O6. A document type is Article, introducing its new discovery., COA of Formula: C20H24O6

Dibenzo-18-crown-6 (DBC) was immobilized on crosslinked polyvinyl alcohol (CPVA) microspheres, resulting in polymer-supported crown ether DBC-CPVA. The complexation adsorption behaviors of DBC-CPVA microspheres towards diverse metal ions were investigated. The experimental results show that among alkali metal ions, the complexation adsorption ability of DBC-CPVA for K+ ion is the strongest, and crown ether-metal complex in 1:1 ratio is formed, exhibiting a high adsorption capacity. The adsorption capacities of alkali metal ions on DBC-CPVA are in the order: K+ ? Na+ > LI+ > Rb+ > Cs+. Among several divalent metal ions, DBC-CPVA exhibits stronger adsorption ability towards Zn2+ and Co2+ ions, and a “sandwich”-type complex is formed probably in a molar ratio of 2:1 between the immobilized DBC and Zn2+ ion as well as between the immobilized DBC and Co2+ ion. The adsorption capacities of the several divalent metal ions on DBC-CPVA are in the order: Zn2+ > Co2+ ? Cd2+ > Cu2+ > Ni2+ > Pb2+. The complexation adsorption is exothermic physical physisorption process, and raising temperature leads to the decrease of the adsorption capacity. At the same time, the entropy during the complexation adsorption decreases, so the adsorption process is driven by the decrease of enthalpy.

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Reference：
Chiral Catalysts,
Chiral catalysts – SlideShare

The reaction rate of a catalyzed reaction is faster than the reaction rate of the uncatalyzed reaction at the same temperature.14187-32-7, Name is Dibenzo-18-crown-6, molecular formula is C20H24O6. In a Article，once mentioned of 14187-32-7, Quality Control of: Dibenzo-18-crown-6

The heats of reactions between the acyclic and cyclic macro-compounds are determined. The values can be used as a measure of the donor abilities of the macro ligands. Formation of two types of complexes between the macro compounds and SbCl5 is established. The acyclic macro-compounds form 1:1 complexes, whereas the macrocyclic compounds only 1:2 complexes. (C) 2000 Elsevier Science B.V.

The reactant in an enzyme-catalyzed reaction is called a substrate. Enzyme inhibitors cause a decrease in the reaction rate of an enzyme-catalyzed reaction.I hope my blog about 14187-32-7 is helpful to your research., Quality Control of: Dibenzo-18-crown-6

Reference：
Chiral Catalysts,
Chiral catalysts – SlideShare