Month: April 2022

Product Details of 15227-42-6. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Reactivity of geometric isomers of (-)-dichloropyridine(methyl p-tolyl sulfoxide)platinum(II) by optical rotatory dispersion. Author is De Vekki, D. A.; Spevak, V. N.; Skvortsov, N. K..

The reactions of the optically active geometric isomers of (-)-[Pt(Me-p-TolSO)(Py)Cl2] with several nucleophilic reagents (py, Ph3PS, Ph3P, Ph3As, and Me2SO) were studied by ORD, IR spectroscopy, and 1H and 31P NMR spectroscopy. A mechanism for the reaction is proposed.

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

Ali, Imdad; Manzoor, Hiba; Imran, Muhamad; Shafiulah; Shah, Muhammad Raza published an article about the compound: 1-Bromoundecane( cas:693-67-4,SMILESS:CCCCCCCCCCCBr ).Category: tetrahydroisoquinoline. 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:693-67-4) through the article.

Nonionic surfactants are increasingly interesting because of the solubility and release of drugs. Here, a synthesis of four nonionic nitrogen-containing surfactants is reported. In the synthesis, sulfonamide was reacted with alkyl halides of different lipophilicity. The synthesized nonionic surfactants were characterized by 1H NMR and mass spectroscopy. Their critical micelle concentration (CMC) was determined with a UV spectrophotometer. The self-assembly of surfactants to form drug-loaded, niosomal vesicles with Simvastatin as model drug was investigated. The resulting niosoaml vesicles were characterized by at. force microscope (AFM), zeta-sizer, and UV spectrophotometer for shape, size, polydispersity index, zeta potential, and drug inclusion efficiency. Their biocompatibility has been determined by blood hemolysis and cell toxicity tests. The synthesized surfactants showed low CMC values and were able to form nano-sized round niosomal vesicles with a homogeneous population and surface negativity. Depending on the lipophilicity, they absorbed an increased amount of drug. The biocompatibility studies show that the surfactants are hemocompatible and non-toxic. The results of the study confirm that the synthesized nonionic surfactants are suitable for the solubilization and release of hydrophobic drugs as efficient novel biocompatible carriers.

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

Computed Properties of C10H10Cl2N2Pt. 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 Reactions of potassium tetrachloroplatinate(II) with pyridine derivatives in dimethylformamide and synthesis of potassium trichloro(pyridine)platinum(II). Author is Kong, Pi-Chang; Rochon, F. D..

The reactions of K2PtCl4 with pyridine derivatives L (L = py = pyridine, pic = picoline, and lut = lutidine) were studied in DMF. K[PtLCl3] (I) were isolated and the yield decreased with the order, 2,4-lut = 2-pic > 2,6-lut > 4-pic = py, which can be correlated to the steric hindrance of the ortho Me groups. Cis-[PtL2Cl2] (II) is the final product of the reactions. Trans-[PtL2Cl2] (III) can also be obtained from a DMF solution of [Pt(L)4]Cl2 (L = py) at room temperature A comparison of the above reactions in H2O and in DMF was also made.

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

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 Density functional theory and surface enhanced Raman spectroscopy characterization of novel platinum drugs, published in 2002, which mentions a compound: 15227-42-6, mainly applied to anticancer platinum complex density functional theory; Raman spectroscopy anticancer platinum complex, Application of 15227-42-6.

There is considerable interest in the development of novel platinum-based anticancer drugs that overcome the disadvantages associated with the widely used drug cisplatin, which are its inactivity against some types of tumors and its toxic side effects. In this study we show the suitability of normal Raman spectroscopy (NRS) and surface enhanced Raman spectroscopy (SERS), assisted by d. functional theor. (DFT) calculations, for the characterization of Pt complexes. The Pt complexes studied include the established drugs cisplatin and carboplatin, as well as five novel Pt complexes with anticancer activity. DFT calculations at the B3LYP/LanL2DZ level are a good prediction of the exptl. NRS spectra of small and medium sized Pt complexes. The use of SERS allows the investigation of Pt complexes at physiol. concentrations, and the binding strengths of the different ligands can be determined The formation of pos. charged hydrolysis products may be necessary for SERS activity. The existing group in the hydrolysis reaction can be identified.

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

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 Binding of antitumor platinum compound to cells as influenced by physical factors and pharmacologically active agents, published in 1973, which mentions a compound: 15227-42-6, mainly applied to tumor cell platinum compound binding, Category: tetrahydroisoquinoline.

Tritiated cis-dichloro(dipyridine)platinum(II) (I) [15227-42-6] bound to intact Ehrlich ascites tumor cells at 37.deg. in vitro and remained associated with the acid-insoluble fraction of the cells. The extent of binding was also increased with increasing hydrogen ion [1333-74-0] concentration in the medium. The binding was enhanced markedly at 60.deg. and the maximum number of binding sites/cell was .sim.7 billion at this temperature Of 49 chems. and drugs tested, none decreased appreciably the rate and extent of binding, whereas certain heavy metals, and compounds that compromise membrane permeability enhanced the binding. Human and bovine lymphocytes had similar binding characteristics, but bound much more I/unit of cell volume.

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

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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Antitumor platinum compounds. Relation between structure and activity.Product Details of 15227-42-6.

A pair of cis leaving groups is necessary but not sufficient for anticancer activity in Pt(II) complexes. The complex should be neutral and the lability of the leaving groups should be about that of Cl in cis-dichlorodiammineplatinum(II) [15663-27-1]. The other ligands should be relatively inert and neutral. Amines are preferred, although varying their structure has not given a clear pattern. However the activity of compounds containing alicyclic amines indicates that some Pt compounds may be highly selective.

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

Reference of 1-Bromoundecane. 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: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Catalytic Asymmetric Fluorination of Copper Carbene Complexes: Preparative Advances and a Mechanistic Rationale. Author is Buchsteiner, Michael; Martinez-Rodriguez, Luis; Jerabek, Paul; Pozo, Iago; Patzer, Michael; Noethling, Nils; Lehmann, Christian W.; Fuerstner, Alois.

The Cu-catalyzed reaction of substituted α-diazoesters with fluoride gives α-fluoroesters with ee values of up to 95%, provided that chiral indane-derived bis(oxazoline) ligands were used that carry bulky benzyl substituents at the bridge and moderately bulky iso-Pr groups on their core. The apparently homogeneous solution of CsF in C6F6/hexafluoroisopropanol (HFIP) is the best reaction medium, but CsF in the biphasic mixture CH2Cl2/HFIP also provides good results. DFT studies suggest that fluoride initially attacks the Cu- rather than the C-atom of the transient donor/acceptor carbene intermediate. This unusual step is followed by 1,2-fluoride shift; for this migratory insertion to occur, the carbene must rotate about the Cu-C bond to ensure orbital overlap. The directionality of this rotatory movement within the C2-sym. binding site determines the sense of induction. This model is in excellent accord with the absolute configuration of the resulting product as determined by x-ray diffraction using single crystals of this a priori wax-like material grown by capillary crystallization

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

Name: cis-Dichlorobis(pyridine)platinum(II). 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 Trifluoromethanesulfonato-O complexes of platinum(II) and palladium(II). Author is Diver, Catherine; Lawrance, Geoffrey A..

Reaction of chloroplatinum(II) and chloropalladium(II) complexes containing amine, pyridine, or phosphine ligands at or above room temperature with anhydrous CF3SO3H gave F3CSO3–O complexes, characterized spectroscopically. The complexes cis-[Pt(NH3)2(OSO2CF3)2], trans-[Pt(NH3)2Cl(OSO2CF3)], Pt(en)Cl(OSO2CF3)], [Pt(dppe)(OSO2CF3)2], [Pt(py)2Cl(OSO2CF3)], [Pt(terpy)(OSO2CF3)][CF3SO3], (terpy = 2,2′:6′,2′-terpyridine), trans-[Pd(NH3)2Cl(OSO2CF3)], [Pd(en)(OSO2CF3)2], [Pd(bpy)(OSO2CF3)2] (bpy = 2,2′-bipyridine), and [Pd(PPh3)2(OSO2CF3)2] were isolated. Aquation reactions of selected complexes showed that F3CSO3- hydrolysis is rapid for complexes of both PtII and PdII. Pt(O3SCF3)2 complexes exhibit 2 consecutive rate processes, with k1/k2 ca. 5, consistent with sequential hydrolysis of both anions. Coordinated CF3SO3- in these complexes may be substituted even by neutral coordinating O-donor solvents.

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

Computed Properties of C11H23Br. 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: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about 4-Carboalkoxylated Polyvalerolactones from Malic Acid: Tough and Degradable Polyesters. Author is Fahnhorst, Grant W.; De Hoe, Guilhem X.; Hillmyer, Marc A.; Hoye, Thomas R..

Eight 4-carboalkoxyvalerolactones (CRVLs), varying in the composition of their alkyl (R) side chains, were synthesized from malic acid and subjected to ring-opening transesterification polymerization (ROTEP) using di-Ph phosphate [DPP, (PhO)2PO2H] as a catalyst. Each CRVL produced a semicrystalline poly(4-carboalkoxyvalerolactone) (PCRVL), and the nature of the R group impacted the thermal transitions of these polyesters. Bulk polymerizations at 70°C allowed for preparation of high molar mass samples that contained small amounts of branching, as evidenced by 1H NMR spectroscopy, MALDI spectrometry, size-exclusion chromatog., and eliminative degradation Tensile testing of these lightly branched, high molar mass samples revealed that these polyesters are tough (tensile toughness values up to 88 ± 33 MJ•m-3) and have Young’s moduli (E) up to 186 ± 13 MPa. The acid- and base-catalyzed hydrolytic degradation of the PCRVLs was quant. monitored using total organic carbon anal., and effect of the alkyl chain length on PCRVL hydrolysis rate was determined Finally, the Me ester variant of these malic acid-derived thermoplastics is known to be chem. recyclable.

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

Product Details of 1452-77-3. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Aerobic Activation of C-H Bond in Amines Over a Nanorod Manganese Oxide Catalyst. Author is Wang, Hai; Wang, Liang; Wang, Sai; Dong, Xue; Zhang, Jian; Xiao, Feng-Shou.

The development of heterogeneous catalysts for the synthesis of pharmaceutically relevant compounds is always important for chem. research. Here, we report a selective aerobic oxidation of aromatic and aliphatic amines to corresponding amides over a nanorod manganese oxide (NR-MnOx) catalyst. The kinetic studies reveal that the NR-MnOx catalyzed amine-to-amide reaction proceeds the oxidative dehydrogenation of the amines into nitriles, followed by hydrolysis of nitrile into amides. The NR-MnOx exhibits fast kinetics and high selectivities in these steps, as well as hinders the byproduct formation. More importantly, the NR-MnOx catalyst is stable and reusable in the continuous recycle tests with water as a sole byproduct, exhibiting superior sustainability and significant advancement to outperform the traditional amide production route in acidic or basic media with toxic byproducts.

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