Tag: M.W=100-200

Bredikhin, Alexander A.; Zakharychev, Dmitry V.; Bredikhina, Zemfira A.; Kurenkov, Alexey V.; Krivolapov, Dmitry B.; Gubaidullin, Aidar T. published an article about the compound: (2S)-(+)-3-Chloropropane-1,2-diol( cas:60827-45-4,SMILESS:OC[C@H](O)CCl ).Application In Synthesis of (2S)-(+)-3-Chloropropane-1,2-diol. 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:60827-45-4) through the article.

Depending on the conditions of crystallization from solutions, racemic 3-(2,3-dimethylphenoxy)propane-1,2-diol 1 forms 3 relatively stable crystalline modifications. Each of the crystalline forms, namely, 2 polymorphic racemic compounds and a racemic conglomerate, was characterized by single-crystal x-ray diffraction. Two more metastable racemic compounds crystallized from the racemic melt were found by DSC method. Addnl. thermochem. studies allowed to plot the dependence of the free Gibbs energy on temperature for all the phases found. With the help of slurrying experiments, the nature of the transitions between solid phases was specified. Even a slight predominance of 1 of the enantiomers in almost racemic 1 samples ensures the crystallization of the conglomerate. The revealed features of rac-1 crystallization were taken into account during the realization of its resolution into individual enantiomers by the entrainment procedure.

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

Feldman, Julian published an article about the compound: 2-Methylglutaronitrile( cas:4553-62-2,SMILESS:N#CC(C)CCC#N ).Formula: C6H8N2. 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.

1,3-Dicyanobutane (derived from acrylonitrile) has a higher capacity for light aromatic hydrocarbons in liquid-liquid extraction than does sulfolane. As a solvent in extractive distillation its low volatility, high thermal stability, low f.p. and high selectivity are useful. Equilibrium data and multistage extractions of a typical light catalytic reformate are reported. A light counter-solvent is effective, especially when followed by extractive distillation A combination of methods gives high purity aromatics or improved octane gasoline. A flow diagram is given for continuous cyclic operation to sep. reformate and recover the solvent.

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

Application of 60827-45-4. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single 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

Product Details of 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 Universal scaffold for fluorescent conjugated organoborane polymers. Author is Li, Haiyan; Jakle, Frieder.

A new versatile and strongly emissive conjugated polymer scaffold results when nucleophiles replace the labile bromine atoms on the fluorenyl-borane polymer backbone. Such modification allows facile tuning of the stability, thermal characteristics, and photophys. behavior of a diverse range of luminescent polymers with interesting optoelectronic properties and anion-binding 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 Impact of Surface Chemistry on Copper Deposition in Mesoporous Silicon. Author is Darwich, Walid; Garron, Anthony; Bockowski, Piotr; Santini, Catherine; Gaillard, Frederic; Haumesser, Paul-Henri.

An easy, efficient, and safe process is developed to metalize mesoporous Si (PSi) with Cu from the decomposition of a solution of mesitylcopper (CuMes) in an imidazolium-based ionic liquid (IL), [C1C4Im][NTf2]. The impregnation of a solution of CuMes in IL affords the deposition of metallic islands not only on the surface but also deep within the pores of a mesoporous Si layer with small pores <10 nm. Therefore, this process is well suited to efficiently and completely metalize PSi layers. An in-depth mechanistic study shows that metal deposition is due to the reduction of CuMes by surface silane groups rather than by Si oxidation as observed in aqueous or H2O-containing media. This could open a new route to the chem. metalization of PSi by less-noble metals difficult to attain by a conventional displacement reaction. As far as I know, this compound(75732-01-3)Computed Properties of C9H11Cu can be applied in many ways, which is helpful for the development of experiments. Therefore many people are doing relevant researches.

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

Reference of Mesitylcopper(I). 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 Copper(I) arenethiolates with intramolecular coordination and the formation of mixed organo(arenethiolato)copper(I) aggregates. X-ray structures of trimeric [Cu(SC6H4NMe2-2)]3, nonameric [Cu(S-1-C10H6NMe2-8)]9, and hexanuclear [Cu3(S-1-C10H6NMe2-8)2(CCtBu)]2. Author is Janssen, Maurits D.; Donkervoort, Johannes G.; van Berlekom, Sofia B.; Spek, Anthony L.; Grove, David M.; van Koten, Gerard.

Two new Cu(I) arenethiolates with ortho chelating N donor atoms [Cu(SC6H4NMe2-2)]3 (5) and [Cu(S-1-C10H6NMe2-8)]9 (6) were synthesized by reacting Me3SiSAr (Ar = C6H4NMe2-2 or 1-C10H6NMe2-8) with Cu(I) chloride in a 1:1 molar ratio. Cu(I) arenethiolate 5 is a white to pale yellow solid and is trimeric in the solid state as well as in solution Crystals of [Cu(SC6H4NMe2-2)]3 (5), C24H30Cu3N3S3, are trigonal, space group R3, with a = b 18.2325(7), c 6.8410(4) Å, Z = 3, and final R = 0.028 for 1010 reflections with I ≥ 2.5σ(I) and 107 variables. Cu(I) arenethiolate 6 forms dark red crystals and is nonameric in the solid state as well as in solution Crystals of {[Cu(S-1-C10H6NMe2-8)]9}2{C6H6}10.5 (6), C279H279Cu18N18S18, are triclinic, space group P1̅, with a 16.081(2), b 26.650(4), c 32.747(6) Å, α 67.320(13), β 76.180(12), γ 81.226(12)°, Z = 2, and final R = 0.118 for 28749 reflections and 1501 variables. Reaction of nonameric 6 with (3,3-dimethylbutynyl)copper gave the 2:1 mixed dimeric hexanuclear organo(arenethiolato)copper aggregate [Cu3(S-1-C10H6NMe2-8)2(CCtBu)]2 (9), C60H66Cu6N4S4, which was isolated as an air-stable orange solid which is insoluble in most common organic solvents. Crystals of 9 are monoclinic, space group P21/c, with a 11.9839(5), b 12.9391(8), c 18.9482(7) Å, β 108.326(3)°, Z = 2, and final R = 0.0314 for 5110 reflections with I ≥ 2.5σ(I) and 358 variables. Reaction of 6 with mesitylcopper, [Cu5(C6H2Me3-2,4,6)5], gave the 1:1 mixed organo(arenethiolato)copper aggregate [Cu2(S-1-C10H6NMe2-8)(C6H2Me3-2,4,6)]n (10), which is a yellowish-brown, slightly air-sensitive solid that is soluble in polar and aromatic hydrocarbons. The new mixed aggregates 9 and 10 are thermodynamically and kinetically very stable, and the overall structure of mixed organo(arenethiolato)copper aggregates such as 9 is insensitive to structural changes in the arenethiolate ligand.

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

Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 60827-45-4, is researched, SMILESS is OC[C@H](O)CCl, Molecular C3H7ClO2Journal, ACS Symposium Series called New cations for ionic liquids, including chiral adjuncts with phosphate and sulfonylimide anions, Author is Engel, Robert; Lall-Ramnarine, Sharon; Coleman, Delroy; Thomas, Marie, the main research direction is chiral ionic liquid phosphate sulfonylimide anion symposium.Related Products of 60827-45-4.

Symposium proceedings. A series of new ionic liquids has been prepared and investigated incorporating a variety of ammonium and polyammonium cationic components. These include several topogs., including linear arrays (strings) with stereogenic sites along the array, and both pyrrolidinium and pyridinium species bearing ether and chiral adjuncts. The associated anions for these systems include the (environmentally friendlier) phosphate and bis(trifluoromethyl)sulfonylimide species. Phys. and chem. characteristics of the anhydrous ionic liquids have been investigated.

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

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: Mesitylcopper(I)( cas:75732-01-3 ) is researched.Product Details of 75732-01-3.Arquilliere, P.; Haumesser, P. H.; Santini, C. C. published the article 《Copper nanoparticles generated in situ in imidazolium based ionic liquids》 about this compound( cas:75732-01-3 ) in Microelectronic Engineering. Keywords: copper nanoparticle imidazolium ionic liquid. Let’s learn more about this compound (cas:75732-01-3).

Copper nanoparticles (CuNPs) have been successfully synthesized in imidazolium based ionic liquid (IL) under mild conditions. In this self-ordered medium, particles with narrow size distribution can be formed. No ligand is required to stabilize the suspension, which can be directly used to coat technol. substrates. Several parameters are examined: the nature of IL, stirring, dihydrogen pressure and temperature Under optimal conditions, well dispersed, zero-valent CuNPs of 4.5 nm with narrow size distribution are obtained. These stable suspension of Cu(0)NPs is a promising starting material to form conformal copper seed layers in high aspect ratio interconnect structures.

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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 Deactivation during the hydrogenation of 2-methylglutaronitrile to β-picoline, published in 1994, which mentions a compound: 4553-62-2, mainly applied to hydrogenation methylglutaronitrile; glutaronitrile methyl hydrogenation; picoline preparation, Application In Synthesis of 2-Methylglutaronitrile.

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

Synthetic Route of C3H7ClO2. 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 Spontaneous resolution amongst chiral ortho-cyanophenyl glycerol derivatives: an effective preferential crystallization approach to a single enantiomer of the β-adrenoblocker bunitrolol. Author is Bredikhina, Zemfira A.; Akhatova, Flyura S.; Zakharychev, Dmitry V.; Bredikhin, Alexander A..

The β-adrenoblocker bunitrolol I as well as intermediate cyclic sulfate II and glycidyl ether III have been prepared in enantiopure form by starting from enantiopure o-cyanophenyl glycerol ether IV by an entrainment resolution procedure. Thermal investigations reveal that the hydrochloride salt of I forms a moderately stable racemic compound, whereas IV, II and III are conglomerate forming substances potentially capable of entrainment resolution Some chem. and chiroptical characteristics for bunitrolol and possible intermediates in its synthesis were corrected, and configurations were verified with the configuration of hydrochloride salt of I.

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