Tag: M.W=100-200

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 Asymmetric synthesis of (S)-Metoprolol, published in 2010-11-10, which mentions a compound: 60827-45-4, Name is (2S)-(+)-3-Chloropropane-1,2-diol, Molecular C3H7ClO2, Category: iodides-buliding-blocks.

Enantioenriched (S)-3-chloro-1,2-propanediol and (R)-epichlorohydrin were obtained by a kinetic hydrolysis resolution of racemic epichlorohydrin using (S,S)-salen-cobalt acetate and the synthesis of the target compound [i.e., 99% optically pure (S)-Metoprolol] was achieved by a reaction of 4-(2-methoxyethyl)phenol with (2S)-3-chloro-1,2-propanediol and a subsequent amination with 2-propanamine. When (R)-epichlorohydrin was used as a chiral precursor, (S)-Metoprolol was also formed but less optically pure (>92%). The overall product yield 53.9% and the product thus [(-)-Metoprolol, (2S)-1-[4-(2-methoxyethyl)phenoxy]-3-[(1-methylethyl)amino]-2-propanol] was confirmed by IR, 1H-NMR, 13C-NMR, MS. This method may be suitable for industrial process adaptation.

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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: (2S)-(+)-3-Chloropropane-1,2-diol(SMILESS: OC[C@H](O)CCl,cas:60827-45-4) is researched.Category: iodides-buliding-blocks. The article 《A novel method for synthesis of L- and D-glycerol acetonide》 in relation to this compound, is published in Yingyong Huaxue. Let’s take a look at the latest research on this compound (cas:60827-45-4).

A novel efficient method for preparation. L- and D-glycerol acetonide is described. Highly enantioenriched (S)-epichlorohydrin and (R)-3-chloro-1,2-propanediol were simultaneously prepared by hydrolysis and resolution of racemic epichlorohydrin in presence of a chiral (R,R)-Salen-CoIII complex. (S)-epichlorohydrin was then used to afford L-glycerol acetonide in overall yield of 59.4 % by hydrolysis, condensation with acetone, substitution (acetylation), and alcoholysis. D-glycerol acetonide was prepared from (R)-3-chloro-1,2-propanediol in overall yield of 62.5 %. The chem. structures of the target compounds were confirmed by IR, 1H NMR and MS.

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

SDS of cas: 60827-45-4. 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 Inhibition of glycolysis in boar spermatozoa by α-chlorohydrin phosphate appears to be mediated by phosphatase activity. Author is Jones, A. R.; Porter, L. M..

(R,S)-α-chlorohydrin-1-phosphate, previously shown to have no anti-glycolytic activity on mature boar sperm in vitro, is a substrate for acid and/or neutral phosphatase(s) that are associated with washed sperm. The high phosphatase activity hydrolyses the ester to α-chlorohydrin which undergoes oxidation to (S)-3-chlorolactaldehyde, a specific inhibitor of sperm glyceraldehyde-3-phosphate dehydrogenase and triosephosphate isomerase, thereby exhibiting an anti-glycolytic action.

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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 Homoleptic Copper(I) Alkoxide and Phenoxide Clusters Stabilized by Intramolecular π-Coordination: Tetrameric o-Allylphenoxocopper(I) and Hexameric 2-Methyl-3-buten-2-oxocopper(I), published in 1998-01-19, which mentions a compound: 75732-01-3, mainly applied to copper alkoxide phenoxide cluster intramol stabilized; tetrameric allylphenoxocopper hexameric methylbutenoxocopper preparation structure, COA of Formula: C9H11Cu.

Built-in π-alkene functionalities have been found to yield homoleptic copper(I) phenoxide and alkoxide clusters exhibiting tetrameric cubane- or hexameric ribbon-shaped structures. While tetrameric o-allylphenoxocopper(I) (1) is remarkably stable, retains its structure in solution, and resists carbonylation, hexameric methylbutenoxocopper(I) (2) dissolves in such a way that oxo-bridged copper(I) is retained, whereas π-alkene-copper(I) coordination is destroyed, leaving copper(I) free to accept carbon monoxide as a ligand.

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

Recommanded Product: 75732-01-3. 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 Structural diversity of calcium organocuprates(I): Synthesis of mesityl cuprates via addition and transmetalation reactions of mesityl copper(I). Author is Krieck, Sven; Goerls, Helmar; Westerhausen, Matthias.

The addition of [(L)4Ca(I)Mes] (Lewis base L = thf, Et2O) to mesityl copper(I) and the transmetalation reaction of mesityl copper(I) with activated calcium are suitable pathways for the synthesis of dimesityl cuprates(I) of calcium. However, the structures of the calcium cuprates(I) depend on the preparative procedure. The transmetalation reaction leads to the formation of [Mes-Cu-Mes]- anions whereas the addition yields dinuclear [(Mes-Cu)2(μ-Mes)]- anions. The solvent-separated counterions are [Ca(thf)6]2+ and [(thf)5CaI]+, resp. In contrast to these findings, the addition of [(L)4Ca(I)Mes] to mesityl copper(I) in an Et2O/toluene mixture led to formation of tetrameric solvent-free iodocalcium dimesityl cuprate(I) [ICa(μ-η1,η6-Mes2Cu)]4, representing a rare example of a heavy Normant-type organocuprate.

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

Cordier, Georges published the article 《Influence of the medium on hydrogenation of 2-methylglutaronitrile. Selective access to 2-methylpentane diamine or β-picoline after dehydrogenation》. Keywords: medium effect hydrogenation methylglutaronitrile; selective preparation methylpentanediamine; picoline; dehydrogenation methylpiperidine.They researched the compound: 2-Methylglutaronitrile( cas:4553-62-2 ).SDS of cas: 4553-62-2. 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:4553-62-2) here.

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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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 Application of cyclic sulfates in the synthesis of enantiomers of 1-[3-(4-aryl-piperazin-1-yl)-2-hydroxy-propyl]-pyrrolidin-2-one, published in 2009-02-26, which mentions a compound: 60827-45-4, Name is (2S)-(+)-3-Chloropropane-1,2-diol, Molecular C3H7ClO2, Product Details of 60827-45-4.

The synthesis of enantiomers of 1-[3-(4-aryl-piperazin-1-yl)-2-hydroxy-propyl]-pyrrolidin-2-one derivatives, i.e. I, is described. These enantiomers were synthesized starting from (R)- or (S)-1-chloro-2,3-dihydroxypropane using relevant cyclic sulfates as chiral intermediates. The enantiomeric purities of the final compounds were in the range of 99.3-100.0%, as determined by high performance liquid chromatog. The final compounds were found to display moderate potency as ligands for α1-adrenoreceptors.

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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 Probing the charging mechanisms of carbon nanomaterial polyelectrolytes.Safety of Mesitylcopper(I).

Chem. charging of single-walled carbon nanotubes (SWCNTs) and graphenes to generate soluble salts shows great promise as a processing route for electronic applications, but raises fundamental questions. The reduction potentials of highly-charged nanocarbon polyelectrolyte ions were investigated by considering their chem. reactivity towards metal salts/complexes in forming metal nanoparticles. The redox activity, degree of functionalisation and charge utilization were quantified via the relative metal nanoparticle content, established using thermogravimetric anal. (TGA), inductively coupled plasma at. emission spectroscopy (ICP-AES) and XPS. The fundamental relationship between the intrinsic nanocarbon electronic d. of states and Coulombic effects during charging is highlighted as an important area for future research.

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

Application In Synthesis of (2S)-(+)-3-Chloropropane-1,2-diol. 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: (2S)-(+)-3-Chloropropane-1,2-diol, is researched, Molecular C3H7ClO2, CAS is 60827-45-4, about p-Tolyl glycerol ether: is it possible to find more simple molecular organogelator with pronounced chirality driven properties?. Author is Bredikhin, Alexander A.; Bredikhina, Zemfira A.; Akhatova, Flyura S.; Gubaidullin, Aidar T..

P-Tolyl glycerol ether not belonging to any of the known gelator families forms stable transparent gels in hydrocarbon media showing very good quant. characteristics of gelling abilities, which are, in turn, strongly dependent on the chiral characteristics of the gelator. The crystal packing differences between the rac- and scal-substances could be the reason for such behavior.

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

Computed Properties of C9H11Cu. 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 Highly Fluorinated Weakly Coordinating Monocarborane Anions. 1-H-CB11F11-, 1-CH3-CB11F11-, and the Structure of [N(n-Bu)4]2[CuCl(CB11F11)]. Author is Ivanov, Sergei V.; Rockwell, Juston J.; Polyakov, Oleg G.; Gaudinski, Christine M.; Anderson, Oren P.; Solntsev, Konstantin A.; Strauss, Steven H..

Treatment of CsCB11H12 with F2 in anhydrous HF produced Cs(1-H-CB11F11) in 74% isolated yield. The polyfluorocarborane anion was stable in 5 M aqueous acid. It is deprotonated in 3 M aqueous base but only slowly undergoes F/OH metathesis in this medium. Salts of 1-CH3-CB11F11- were prepared by treating salts of 1-H-CB11F11- with di-Me sulfate in basic solution Neither 1-H-CB11F11- nor 1-CH3-CB11F11- reacted with ≥20-fold excess triethylaluminum. The compound Si(i-Pr)3(1-CH3-CB11F11) was generated in toluene solution and was found to exhibit a δ(29Si) value of 120.0, the highest pos. value yet observed for any Si(i-Pr)3X species. On this basis, the 1-H-CB11F11- and 1-CH3-CB11F11- anions show great promise as robust, chem. inert, weakly coordinating anions. The crystalline compound [NBu4]2[CuCl(CB11F11)] was formed when [Cu(mesityl)]n was treated with one equiv [NBu4][1-H-CB11F11] and one equiv NBu4Cl. The Cu(I) coordination geometry in the [CuCl(CB11F11)]2- anion, determined by x-ray crystallog., is two-coordinate linear, with Cu-Cl = 1.917(5) Å, Cu-Cl = 2.136(1) Å, and Cl-Cu-Cl = 176.0(2)°.

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