Category: 15227-42-6

Application In Synthesis of cis-Dichlorobis(pyridine)platinum(II). 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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Solid-phase thermal transformations of platinum(IV) aminate complexes. Author is Kukushkin, Yu. N.; Sedova, G. N.; Belyaev, A. N.; Konovalov, L. V..

The thermal behavior of onium chloroplatinates of the type (AH)2[PtCl6] (A = NH3, MeNH2, 0.5 en, piperidine, py, γ-picoline, NH2Ph, p-toluidine, quinoline, 0.5 2,2′-bipyridine) was studied by derivatog. and IR spectral anal. The heating of solid (AH)2[PtCl6] led to the formation of trans-PtL2Cl4 (L = py, γ-picoline) and cis-PtQ2Cl4 (Q = p-toluidine) and subsequently to the formation of cis-PtA2Cl2. When (AH)2[PtCl6] (A = piperidine) was heated (AH)2[PtCl4] was formed. These results were compared with those for the corresponding palladates.

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Tetrahydroisoquinoline – Wikipedia,
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The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: cis-Dichlorobis(pyridine)platinum(II)(SMILESS: [Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2,cas:15227-42-6) is researched.Related Products of 1452-77-3. The article 《The RP-HPLC measurement and QSPR analysis of log Po/w values of several Pt(II) complexes》 in relation to this compound, is published in Journal of Inorganic Biochemistry. Let’s take a look at the latest research on this compound (cas:15227-42-6).

The n-octanol/water partition coefficient, log Po/w, for a set of 24 Pt(II)-complexes was estimated by means of reversed-phase high performance liquid chromatog. (RP-HPLC) technique using a C18 (ODS, octadecyl silane) column as a stationary phase and water/methanol mixtures as mobile phases. Based on the known log P o/w of several Pt(II)-complexes, the authors set a method to correlate the partition coefficient of this kind of complexes with the corresponding retention parameters. The best result was obtained from extrapolation to 0% of the organic modifier (MeOH) of the aqueous eluant. A quant. structure-property relationship (QSPR) was constructed using mol. descriptors derived from d. functional theory (DFT) calculations, which was found to correlate and predict these values with good accuracy. The use of DFT calculations is required because group-additive methods fail due to lack of values for appropriate fragments for many Pt(II)-complexes.

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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: 15227-42-6, is researched, SMILESS is [Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2, Molecular C10H10Cl2N2PtJournal, Article, Research Support, Non-U.S. Gov’t, Research Support, U.S. Gov’t, P.H.S., Cancer Research called Activation of the trans geometry in platinum antitumor complexes: a survey of the cytotoxicity of trans complexes containing planar ligands in murine L1210 and human tumor panels and studies on their mechanism of action, Author is Farrell, Nicholas; Kelland, Lloyd R.; Roberts, John D.; Van Beusichem, Marijo, the main research direction is trans platinum antitumor complex resistance structure.Safety of cis-Dichlorobis(pyridine)platinum(II).

The cytotoxicity of transplatinum complexes of structural formula trans-[PtCl2(L)L’)] {L = L’ = pyridine or thiazole, or L = quinoline (R’ = methyl; R” = Me, Ph or CH2phenyl) and L’ = R’R”SO] has been studied in murine L1210 and human tumor cell lines. The results confirm previous observations that use of a sterically hindered planar ligand greatly enhances cytotoxicity, in comparison to trans-[PtCl2(NH3)2], such that in some cases cytotoxicity equivalent to that of the clin. used agent cisplatin [cis-{PtCl2(NH3)2]] is obtained. Results from both the panel of human ovarian carcinoma cell lines and the National Cancer Institute screening panel confirm a different pattern of cytotoxicity, with respect to cisplatin. The new trans-platinum complexes are also non-cross-resistant with cisplatin in both murine and human (human ovarian carcinoma panel) tumor cell lines. Preliminary mechanistic studies using both cis- and trans-[PtCl2(pyridine)2] in L1210 cells have been carried out, to delineate the reasons for both the dramatically enhanced cytotoxicity and the lack of cross-resistance with the clin. used agents. Intracellular uptake is enhanced for pyridine relative to ammine (NH3) complexes. The pyridine complexes also inhibit DNA synthesis, implying a role for DNA binding in their mechanism of action. Binding of the pyridine complexes to calf thymus DNA is, however, significantly less than for the analogous ammine complexes. The presence of trans-pyridine ligands results in steric hindrance, which retards the rate of reaction of trans-[PtCl2(pyridine)2], relative to trans[PtCl2(NH3)2], with other important biomols. such as glutathione. The results point to a potential new class of platinum antitumor complexes acting by a new mechanism and with activity complementary to agents such as cisplatin.

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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 Determination of cis-trans isomers of amine and pyridine platinum(II) complexes by J(Pt-H) coupling constants, published in 1990, which mentions a compound: 15227-42-6, Name is cis-Dichlorobis(pyridine)platinum(II), Molecular C10H10Cl2N2Pt, Recommanded Product: cis-Dichlorobis(pyridine)platinum(II).

The coupling constants 3J(Pt-H) of Pt(Xpy)2Z2 and Pt(Xpy)(DMSO)I2 (Xpy = py and its 4-Me, 3,5-Me, 4-Cl, 4-CN, 4-HOCH2, 4-AcO derivatives; Z = Cl, I, Br, ONO2) were recorded. The 3J(Pt-H) values of the cis complexes are 42 ± 2 Hz, while those of the trans derivatives are 31.5 ± 2.5 Hz. 2J(Pt-H) of [Pt(XNH2)2Z2] (X = Me, cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl; Z = Cl, I, ONO2) were recorded. The 2J(Pt-H) values of the cis complexes are 66.5 ± 1.5z, those of the trans derivatives are 58 ± 2 Hz. Measurements of Pt-H coupling constants is a rapid method of identifying the cis and the trans isomers of Pt(II) complexes.

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Tetrahydroisoquinoline – Wikipedia,
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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 Activation of the trans geometry in platinum antitumor complexes. Synthesis, characterization, and biological activity of complexes with the planar ligands pyridine, N-methylimidazole, thiazole, and quinoline. Crystal and molecular structure of trans-dichlorobis(thiazole)platinum(II), published in 1992-02-19, which mentions a compound: 15227-42-6, mainly applied to antitumor platinum chloro nitrogen donor complex; crystal structure platinum chloro thiazole complex, SDS of cas: 15227-42-6.

The presence of planar ligands in trans-[PtCl2(py)2] greatly enhances the cytotoxicity of such species, with respect both to their corresponding cis isomer and also to trans-[PtCl2(NH3)2]. The cytotoxicity of trans-[PtCl2(py)2] in murine tumor cell lines is equivalent to the anticancer drug cisplatin, cis-[PtCl2(NH3)2]. The generality of this effect was studied for a range of structures with planar ligands of formula trans-[PtCl2(L)(L’)]. Three distinct series were examined-(1) L = L’ = py, N-methylimidazole (N-MeIm), and thiazole (Tz), (2) L = quinoline (quin), L’ = MeRSO where (R = Me, CH2Ph, Ph), and (3) L = quinoline, L’ = NH3. The synthesis and chem. characterization of all new complexes are described. An x-ray crystal structure determination for trans-[PtCl2(Tz)2] confirmed the geometry with N-bound thiazole. The crystals are monoclinic, space group C2/c, a 8.088(3), b 14.964(4), c 8.847(2) Å, β 99.50(2), Z = 4, R = 0.0545, Rw = 0.0655. Pt has the expected square planar coordination with l(Pt-Cl) = 2.300(5) Å and l(Pt-N) = 2.024(18) and 2.077(17) Å. Bond angles are normal with N(1)-Pt-N(2) = 180.0(1)°, N(1)-Pt-Cl(1) = 90.4(1)°, and N(2)-Pt-Cl(1A) = 89.6(1)°. The intensity data were collected with MoKα radiation with λ = 0.71073 Å. The thiazole rings are not coplanar but slightly tilted to each other at an angle of 14.3°. The dihedral angles between the Pt coordination plane and the thiazole rings are 119.3 and 105.0°. The biol. studies confirm the generality of activation of the trans geometry using planar ligands. Cytotoxicity tests in murine leukemia (L1210) cell lines both sensitive and rendered resistant to cisplatin show that the complexes show equivalent cytostatic activity to that of cisplatin. The activity is an order of magnitude greater than trans-[PtCl2(NH3)2]. The cytotoxicity is further marked by consistent activity in the cisplatin-resistant cell line. Contrary to the well-established but empirical structure-activity relationships, the trans geometry can give platinum complexes with cytotoxicity equivalent to that of the analogous cis isomer. The results point to a further source of platinum antitumor complexes acting by a different mol. mechanism to cisplatin with potential for antitumor activity complementary to that of the clin. used drug.

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

Name: cis-Dichlorobis(pyridine)platinum(II). 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: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Redistribution of ligands in [Rh(CO)A(PPh3)2][Pt(py)Cl3]. Author is Iretskii, A. V.; Danilina, L. F.; Zhidkova, O. B.; Kukushkin, Yu. N..

[Rh(CO)A(PPh3)2][Pt(py)Cl3].DMF (I; A = py, 4-picoline (pic), 2,2′-bipyridine (bpy), 1,10-phenanthroline (phen)) were prepared by the reaction of [Rh(CO)A(PPh3)2]NO3 with K[Pt(py)Cl3] in DMF. For I (A = py, pic) at room temperature in DMF, Me2CO, CHCl3 or C6H6 after 15-30 min., redistribution of ligands occurred with the formation of Rh(CO)(PPh3)2Cl and cis-Pt(py)ACl2. I (A = bpy, phen) are stable in solution

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Colamarino, Paolo; Orioli, Pier L. published the article 《Crystal and molecular structures of cis- and trans-dichlorobis(pyridine)platinum(II)》. Keywords: crystal structure platinum complex; pyridine platinum complex structure.They researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Application of 15227-42-6. 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 crystal and mol. structures of cis- and trans-dichlorobis(pyridine)platinum (I, II resp.) were determined from x-ray diffractometer data by heavy-atom techniques and refined by least squares to R 0.041 and 0.068 for 1000 and 1032 observed intensities for I and II, resp. Crystals of I are monoclinic, space group C2/c, with a 9.408, b 17.110, c 15.270 Å, β 98.53.degree., and Z = 8. Crystals of II are triclinic, space group P1̅, with a 7.695, b 7.091, c 5.542 Å, α 87.6, β 83.7, γ 79.3.degree., and Z = 1. Both complexes consist of discrete mols. with Pt in square planar coordination.

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Heterocyclic compounds can be divided into two categories: alicyclic heterocycles and aromatic heterocycles. Compounds whose heterocycles in the molecular skeleton cannot reflect aromaticity are called alicyclic heterocyclic compounds. Compound: 15227-42-6, is researched, Molecular C10H10Cl2N2Pt, about Experimental criteria for the applicability of the group model to stretching vibrations of the dichloroplatinum fragment in square planar complexes, the main research direction is vibration chloroplatinum complex bond length.Product Details of 15227-42-6.

A correlation was found between the Pt-Cl bond length difference, Δr, and the distance, Δν, between the doublet components of the stretching vibration νClPt in cis[PtCl2LL’] complexes with 2 different ligands, L and L’. For Δr = 0-0.025 Å, a constant splitting Δν = 15-25 cm-1 was observed, but for Δr >0.03 Å Δν increased linearly with increasing Δr. The difference was explained in terms of sym. and asym. Pt-Cl bonds.

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Tetrahydroisoquinoline – Wikipedia,
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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.Tessier, C.; Rochon, F. D. researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Application of 15227-42-6.They published the article 《Multinuclear NMR study and crystal structures of complexes of the types cis- and trans-Pt(Ypy)2X2, where Ypy = pyridine derivative and X = Cl and I》 about this compound( cas:15227-42-6 ) in Inorganica Chimica Acta. Keywords: crystal structure platinum picoline pyridine halo; platinum pyridine picoline lutidine halo preparation structure; isomerization cis trans platinum pyridine halo; NMR platinum 195 pyridine halo complex; trans effect platinum pyridine halo complex. We’ll tell you more about this compound (cas:15227-42-6).

Cis- and trans-Pt(Ypy)2X2, where Ypy is a Me derivative of pyridine and X = Cl or I, were studied by spectroscopic methods, especially by multinuclear NMR spectroscopy. In 195Pt NMR, the cis-dichloro compounds were observed between -1998 and -2021 ppm in CDCl3, while the trans compounds were found at slightly lower field, between -1948 and -1973 ppm. The diiodo species were observed at much higher field, between -3199 and -3288 ppm for the cis isomers and between -3122 and -3264 ppm for the trans isomers. In 1H NMR, the 3J(195Pt-1H) coupling constants are larger for the cis compounds (∼42 ppm) than for the trans isomers (∼33 ppm). In 13C NMR, the values of 3J(195Pt-13C) also are larger for the cis complexes. There seems to be a slight dependence of the pKa values of the protonated ligands on the δ(Pt) chem. shifts. The presence of π-bonding between Pt and the pyridine ligands do not seem very important. The crystal structures of three dichloro and five diiodo complexes were determined, in an attempt to obtain information on the trans influence of the three ligands. The iodo ligand has the greatest trans influence. Chloro and pyridine ligands seem to have similar trans influence, although, the chloro ligand seems to have a slightly larger influence than pyridine derivatives One structure, trans-Pt(2-pic)2I2, showed a syn conformation of the two 2-picoline ligands.

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Tetrahydroisoquinoline – Wikipedia,
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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 Thermal migration of amines in platinum(II) complexes, published in 1978-08-31, which mentions a compound: 15227-42-6, mainly applied to platinum complex amine thermal migration; ammine thermal migration platinum complex; pyridine thermal migration platinum complex; methylamine thermal migration platinum complex; ethylenediamine thermal migration platinum complex; aniline thermal migration platinum complex; quinoline thermal migration platinum complex; picoline thermal migration platinum complex; toluidine thermal migration platinum complex; piperidine thermal migration platinum complex; hydroxyquinoline thermal migration platinum complex, Related Products of 15227-42-6.

Derivatog. data indicate that the 1st stage of the thermal conversion of (LH)2[PtCl4] (L = NH3, MeNH2, piperidine, pyridine, γ-picoline, PhNH2, p-toluidine, 8-hydroxyquinoline, quinoline) or (enH2)[PtCl4] is the cleavage of HCl and the formation of PtL2Cl2. All the complexes studied fall into 2 groups according to the temperature of the beginning of the process: (1) complexes with a temperature for the start of thermal reaction at 180 – 200° contain amines the basicity constants of which are >10-5 and (2) complexes with decomposition temperatures at 130-50° contain amines the basicity constants of which are <10-8. Although many compounds look similar to this compound(15227-42-6)Related Products of 15227-42-6, numerous studies have shown that this compound(SMILES:[Cl-][Pt+2]([N]1=CC=CC=C1)([Cl-])[N]2=CC=CC=C2), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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