Month: April 2022

Recommanded Product: cis-Dichlorobis(pyridine)platinum(II). 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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Interaction of pyridineplatinum(II) complexes with alkyl sulfoxides. Author is de Vekki, D. A..

The reaction of cis- and trans-[Pt(py)2Cl2] and [Pt(py)4]Cl2 with DMSO and Et2SO was studied by NMR. The products of the reaction are pyridine sulfoxide complexes and bis(sulfoxide) complexes. With heating cis/trans isomerization occurred, determining the configuration of the final products.

If you want to learn more about this compound(cis-Dichlorobis(pyridine)platinum(II))Recommanded Product: cis-Dichlorobis(pyridine)platinum(II), you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(15227-42-6).

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Kotowski, M.; Palmer, D. A.; Kelm, H. published the article 《Volumes of activation for the substitution reactions of cis- and trans-[PtL2(Cl)X] with pyridine in various solvents》. Keywords: platinum complex substitution kinetics pyridine; volume activation platinum complex substitution; solvent effect platinum complex substitution.They researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Computed Properties of C10H10Cl2N2Pt. 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:15227-42-6) here.

The pressure dependence of the 2nd-order rate constant for the substitution of pyridine for Cl in trans-[Pt(py)2(Cl)(NO2)] was measured in the solvents nitromethane, methanol, ethanol, and dichloromethane. The resp. ΔV*exptl. values were calculated to be -6.2 ± 0.4 at 10°, -8.8 ± 0.6 at 25°, -13.1 ± 0.8 at 25°, and -19.8 ± 1.7 cm3 mol-1 att 25°. The ΔVexptl. values for the corresponding reactions of cis-[Pt(py)2(Cl)(NO2)] and trans-[Pt(PEt3)2Cl2] in methanol at 25° are -5.5 ± 0.5 and -13.6 ± 0.8 cm3 mol-1, resp. These ΔV*exptl.’s were found to be only slightly temperature dependent. The activation parameters ΔH*2 and ΔS*2 were also determined for each reaction. The volume change associated with the partial formation of the Pt-pyridine bond was estimated to be -4 ± 1 cm3 mol-1. A qual. explanation of the solvent dependence of ΔV*exptl. is also given.

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Tetrahydroisoquinoline – Wikipedia,
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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: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Anisotropic, Organic Ionic Plastic Crystal Mesophases from Persubstituted Imidazolium Pentacyanocyclopentadienide Salts.Formula: C11H23Br.

We describe the synthesis, supramol. organization, and thermal characteristics of an unprecedented family of sym. 1,2,3,4,5-pentaalkylimidazolium ([(Cn)5i.m.]+) salts equipped with halide, nitrate, or pentacyanocyclopentadienide ([Cp(CN)5]-) counterions. Salts containing relatively small anions were obtained as low-melting solids, whereas those with [Cp(CN)5]- anions were found to be ionic liquids even below room temperature A permethylated derivative, [(C1)5i.m.][Cp(CN)5], proved to be exceptional. Upon heating, the salt self-organized into a new type of organic ionic plastic crystal (OIPC) mesophase, which was termed Mhex and whose anisotropic structure featured hexagonally ordered, rotating anionic stacks positioned within a continuum composed of disordered cations. The structure of the mesophase resembles that of classical columnar liquid-crystalline phases, despite the absence of long, flexible chains. In the Mhex phase, the cations surrounding the anionic columns effectively fulfill the role of “”softening”” structural constituents, much in the same way as flexible chains. The discovery of the novel mesophase, which displays a two-dimensional, and thus intrinsically anisotropic, lattice resulting from the rotation of entire ionic assemblies around a columnar axis, represents a new paradigm in the field of OIPCs. Relatively high ionic conductivities were measured in the Mhex phase, particularly after doping with the corresponding sodium salt, Na[Cp(CN)5], demonstrating the materials’ potential for use in electrochem. applications such as sodium-ion batteries.

If you want to learn more about this compound(1-Bromoundecane)Formula: C11H23Br, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(693-67-4).

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

SDS of cas: 15227-42-6. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Unusual chemical behavior and molecular structure of a platinum(II) complex with N,N-diethylhydroxylamine. Author is Kuz’mina, L. G.; Porai-Koshits, M. A.; Vorob’ev-Desyatovskii, N. V..

cis-[PtL2Cl2] (L = Et2NOH) was prepared by the reaction of K2PtCl4 with L. cis-[PtL2Cl2] does not react with amines (NH3, pyridine, Et2NOH) and L does not react with cis-[PtA2Cl2] (A = NH3, py). cis-[PtL2Cl2] is monoclinic, space group C2, a 7.569(2), b 12.384(7), c 15.428(2) Å, β 100.00(2)°, Z = 4, R = 0.0287. One L coordinates to Pt through the N atom whereas the other is in the zwitterionic form and coordinates through the O atom. The low reactivity of cis-[PtL2Cl2] in substitution reactions is explained on the basis of H bonding and agostic interactions due to which the axial positions in the square planar complexes are blocked against nucleophilic attack.

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Tetrahydroisoquinoline – Wikipedia,
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SDS of cas: 15227-42-6. 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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Electrochemical reduction of geometric isomers of [Pt(C5H5N)2Cl2Br2] on a dropping mercury electrode in propylene carbonate solutions. Author is Vorob’ev-Desyatovskii, N. V.; Ravdel, B. A.; Ukraintsev, I. V..

The method of classical polarog. on a dropping Hg electrode in propylene carbonate was used to study the reduction of the isomeric complexes of Pt(IV) of type [Pt(C5H5N)2Cl2Br2] and of Pt(II) of type [Pt(C5H5N)2X2], where X = Cl, Br. The reduction of cis,cis,trans-[Pt(C5H5N)2Cl2Br2] and of cis,trans,cis-[Pt(C5H5N)2Cl2Br2] occurs according to an electrochem.-chem. mechanism during which, and following the 1-electron reduction of Pt(IV) to Pt(III), there occurs an intramol. redox process with participation of coordinated pyridine.

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Tetrahydroisoquinoline – Wikipedia,
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The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Incorporation of alkylthio side chains on benzothiadiazole-based non-fullerene acceptors enables high-performance organic solar cells with over 16% efficiency, the main research direction is alkylthio benzothiadiazole electron acceptor organic solar cell.Related Products of 693-67-4.

Y6-type non-fullerene acceptors (NFAs) with an acceptor-donor-acceptor′-donor-acceptor (A-D-A′-D-A) structure have been very popular in the field of organic solar cells (OSCs) due to their excellent performances. In this study, two novel NFAs, BTPS-4F and BTPS-4Cl were designed by incorporating undecylthio side chains into a thienothiophene moiety and connecting it to two different halogenated 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile end groups (2F-IC and 2Cl-IC) resp. When blended with a donor polymer, PM6, BTPS-4F-based devices achieved a high power conversion efficiency (PCE) of up to 16.2% with an open-circuit voltage (VOC) of 0.82 V, a short-circuit c.d. (JSC) of 25.2 mA cm-2 and a fill factor (FF) of 0.78, while BTPS-4Cl-based devices achieved an inferior PCE of 13.5%. This is the first time alkylthio chains are employed on Y6-like NFAs to achieve high-performance OSCs. Subsequent characterization showed that the upshifted energy level of BTPS-4F and the better intermol. packing in PM6:BTPS-4F blends are the major reasons for the enhanced performance of BTPS-4F-based devices over BTPS-4Cl-based ones. This work provides high-performance non-fullerene acceptors for OSCs and demonstrates a promising mol. design strategy that can effectively regulate their energy levels and morphol.

If you want to learn more about this compound(1-Bromoundecane)Related Products of 693-67-4, you may wish to communicate with the author of the article,or consult the relevant literature related to this compound(693-67-4).

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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Safety of cis-Dichlorobis(pyridine)platinum(II). 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. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Suppression of growth by platinum(II) complexes in relation to their structure.

Structure-activity studies with 17 Pt-containing complexes showed a correlation between the ability of these complexes to inhibit cell division in corn roots and their known antitumor activities. For the more active compounds C90 (90% suppression of root growth rate) for 3 days was 3 × 10-6M, close to the corresponding amount for highly active inhibitors of other chem. classes. Possible use of the root growth rate to study the biol. activity of Pt-containing complexes is suggested. Structure-activity relations were discussed.

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Tetrahydroisoquinoline – Wikipedia,
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Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Journal of the Serbian Chemical Society called Novel (-)-goniofufurone mimics: Synthesis, antiproliferative activity and SAR analysis, Author is Zelenovic, Bojana Sreco; Kekezovic, Sladjana; Popsavin, Mirjana; Kojic, Vesna; Benedekovic, Goran; Popsavin, Velimir, which mentions a compound: 693-67-4, SMILESS is CCCCCCCCCCCBr, Molecular C11H23Br, Application In Synthesis of 1-Bromoundecane.

Divergent syntheses of novel (-)-goniofufurone mimics with an alko-xymethyl group as the side chain have been accomplished from D-glucose in nine synthetic steps and in overall yields 6.7-8.7%. Their in vitro antiproliferative activity was evaluated against eight human tumor cell lines as well as a single normal cell line. All analogs demonstrated powerful to good antiproliferative effects toward all malignant cell lines under evaluation. Against the HL-60 cell line, all mimics showed increased activities being 27- to 1604-fold more potent than the lead compound, (-)-goniofufurone. Remarkably, the majority of synthesized analogs displayed higher or similar activity to the com. antitumor agent doxorubicin (DOX) against A549 cell line. The most potent compound exhibited 196-fold stronger cytotoxicity than DOX in the culture of this cell line.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Application of 1452-77-3. 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: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about CO2 Conversion with Alcohols and Amines into Carbonates, Ureas, and Carbamates over CeO2 Catalyst in the Presence and Absence of 2-Cyanopyridine. Author is Tomishige, Keiichi; Tamura, Masazumi; Nakagawa, Yoshinao.

Recent progress on the CeO2 catalyzed synthesis of organic carbonates, urea, and carbamates from CO2+alcs., CO2+amines, and CO2+alcs.+amines, resp., is reviewed. The reactions of CO2 with alcs. and amines are reversible ones and the degree of the equilibrium limitation of the synthesis reactions is strongly dependent on the properties of alcs. and amines as the substrates. When the equilibrium limitation of the reaction is serious, the equilibrium conversion of the substrate and the yield of the target product is very low, therefore, the shift of the equilibrium reaction to the product side by the removal of H2O is essential in order to get the target product in high yield. One of the effective method of the H2O removal from the related reaction systems is the combination with the hydration of 2-cyanopyridine to 2-picolinamide, which is also catalyzed by CeO2.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
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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 Dihydrofolate Reductase Inhibitors: The Pharmacophore as a Guide for Co-Crystal Screening, published in 2021, which mentions a compound: 1452-77-3, Name is Picolinamide, Molecular C6H6N2O, Synthetic Route of C6H6N2O.

In this work, co-crystal screening was carried out for two important dihydrofolate reductase (DHFR) inhibitors, trimethoprim (TMP) and pyrimethamine (PMA), and for 2,4-diaminopyrimidine (DAP), which is the pharmacophore of these active pharmaceutical ingredients (API). The isomeric pyridinecarboxamides and two xanthines, theophylline (THEO) and caffeine (CAF), were used as co-formers in the same exptl. conditions, in order to evaluate the potential for the pharmacophore to be used as a guide in the screening process. In silico co-crystal screening was carried out using BIOVIA COSMOquick and exptl. screening was performed by mechanochem. and supported by (solid + liquid) binary phase diagrams, IR spectroscopy (FTIR) and X-ray powder diffraction (XRPD). The in silico prediction of low propensities for DAP, TMP and PMA to co-crystallize with pyridinecarboxamides was confirmed: a successful outcome was only observed for DAP + nicotinamide. Successful synthesis of multicomponent solid forms was achieved for all three target mols. with theophylline, with DAP co-crystals revealing a greater variety of stoichiometries. The crystalline structures of a (1:2) TMP:THEO co-crystal and of a (1:2:1) DAP:THEO:ethyl acetate solvate were solved. This work demonstrated the possible use of the pharmacophore of DHFR inhibitors as a guide for co-crystal screening, recognizing some similar trends in the outcome of association in the solid state and in the mol. aggregation in the co-crystals, characterized by the same supramol. synthons.

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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem