Category: tetrahydroisoquinoline

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, Spectroscopy Letters called Spectral studies of some pyridine and bipyridine complexes of platinum(II), Author is Agarwala, Badri Vishal, the main research direction is platinum pyridine bipyridine spectra; UV platinum pyridine bipyridine; magnetic CD platinum pyridine bipyridine.Application In Synthesis of cis-Dichlorobis(pyridine)platinum(II).

Electronic absorption spectra and magnetic CD (MCD) spectra were studied for the square planar complexes cis- and trans-Pt(py)2Cl2 and Pt(2,2′-bipyridine)Cl2(I). Detailed studies were carried out for I due to its fair solubility in many solvents and the solvent effect on its electronic spectra was investigated. The band assignments of the electronic spectra are discussed and are supported by the MCD spectra. NMR and magnetic studies were also carried out on the complexes to further elucidate their configuration. All the complexes studied are diamagnetic in conformity with their square planar arrangement.

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

Product Details of 1452-77-3. 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: Picolinamide, is researched, Molecular C6H6N2O, CAS is 1452-77-3, about Lewis acid promoted dehydration of amides to nitriles catalyzed by [PSiP]-pincer iron hydrides. Author is Chang, Guoliang; Li, Xiaoyan; Zhang, Peng; Yang, Wenjing; Li, Kai; Wang, Yajie; Sun, Hongjian; Fuhr, Olaf; Fenske, Dieter.

The dehydration of primary amides to their corresponding nitriles using four [PSiP]-pincer hydrido iron complexes [(2-Ph2PC6H4)2MeSiFe(H)(PMe3)2, (2-Ph2PC6H4)2HSiFe(H)(PMe3)2, (2-(iPr)2PC6H4)2HSiFe(H)(PMe3)2 and (2-(iPr)2PC6H4)2MeSiFe(H)(PMe3)2] as catalysts in the presence of (EtO)3SiH as dehydrating reagent was explored in the good to excellent yields. It was proved for the first time that Lewis acid could significantly promote this catalytic system under milder reaction conditions than other Lewis acid-promoted system, such as shorter reaction time or lower reaction temperature This was also the first example that dehydration of primary amides to nitriles RCN [R = 4-ClC6H4, 2-thienyl, Bn, etc.] was catalyzed by silyl hydrido iron complexes bearing [PSiP]-pincer ligands with Lewis acid as additive. This catalytic system had good tolerance for many substituents. Among the four iron hydrides (2-Ph2PC6H4)2MeSiFe(H)(PMe3)2 was the best catalyst. The effects of substituents of the [PSiP]-pincer ligands on the catalytic activity of the iron hydrides were discussed. A catalytic reaction mechanism was proposed. Complex (2-(iPr)2PC6H4)2MeSiFe(H)(PMe3)2 was a new iron complex and was fully characterized. The mol. structure of complex (2-(iPr)2PC6H4)2MeSiFe(H)(PMe3)2 was determined by single crystal X-ray diffraction.

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

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 Monodisperse micelles composed of poly(ethylene glycol) attached surfactants: platonic nature in a macromolecular aggregate, the main research direction is calixarene monodispersity platonic micelle.Quality Control of 1-Bromoundecane.

Among the many studies on micelles, dating back more than 100 years, we first found a series of monodisperse micelles: spherical micelles made from calix[4]arene surfactants exhibited monodispersity in aggregation number (Nagg) with values of 4, 6, 8, 12, and 20. We named these Platonic micelles because these values coincided with the face numbers of the Platonic solids. The preferred Nagg values were explained in relation to the math. Tammes problem: how to obtain the best coverage of a sphere surface with multiple identical circles. In this paper, we synthesized poly(ethylene glycol)-attached surfactants and carried out small-angle X-ray scattering (SAXS) and anal. ultracentrifugation (AUC) to determine the Nagg. We found that these polymeric surfactants also formed monodispersed micelles and Nagg discontinuously increased from 20 to 24, and then 32 with increasing the alkyl carbon numbers from 9 to 11 continuously. The determined Nagg was greater than 20 and the Platonic solid numbers We assumed that the preferred Nagg values could be explained in relation to the Tammes problem as well.

Although many compounds look similar to this compound(693-67-4)Quality Control of 1-Bromoundecane, numerous studies have shown that this compound(SMILES:CCCCCCCCCCCBr), has unique advantages. If you want to know more about similar compounds, you can read my other articles.

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

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Radiosensitization of EMT6 cells by four platinum complexes, the main research direction is radiosensitization EMT cell platinum complex; oxygen radiosensitization platinum complex.Category: tetrahydroisoquinoline.

The radiosensitization of oxygenated and hypoxic exponentially growing EMT6 cells in vitro was measured. The dose modifying factors obtained with 200 and 400 μM trans-bis(2-nitroimidazole)dichloroplatinum II (NIPt) in hypoxic cells were 1.5 and 2.1, resp. For trans-bis(2-amino-5-nitrothiazole)dichloroplatinum II (Plant) under the same conditions, the dose modifying factor was 1.5 at 200 μM and 1.8 at 400 μM. Neither compound sensitized oxygenated cells when tested under similar protocols. Unlike the trans complexes, (1,2-diamino-4-nitrobenzene)dichloroplatinum II (Plato) was cytotoxic toward the hypoxic cells in the absence of x-rays. The time course of cytotoxicity for 100 μM Plato in exponentially growing cells showed rapid killing of hypoxic cells, and much less toxicity toward oxygenated cells. In radiosensitization studies, dose modifying factors of 1.6 and 2.0 were found with 200 and 400 μM Plato, resp., in hypoxic cells. The compound did not sensitize aerobic cells. The well known Pt complex cis-dipyridinedichloroplatinum II (PyPt) represents a cis-Pt heterocyclic aromatic complex that does not have a nitro-functionality. The dose modifying factor obtained with 400 μM PyPt in hypoxic cells was 1.7. On a molar basis, the nitro-functional Pt complexes appear to be more effective as hypoxic cell radiosensitizers than the corresponding free ligands.

Although many compounds look similar to this compound(15227-42-6)Category: tetrahydroisoquinoline, 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

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.Peloso, Arnaldo researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Reference of cis-Dichlorobis(pyridine)platinum(II).They published the article 《Kinetics of oxidation of dichlorobis(substituted pyridine)platinum(II) and of reduction of tetrachlorobis(substituted pyridine)platinum(IV) complexes》 about this compound( cas:15227-42-6 ) in Journal of the Chemical Society, Dalton Transactions: Inorganic Chemistry (1972-1999). Keywords: chloropyridineplatinum complex oxidation reduction kinetics; pyridinechloroplatinum complex oxidation reduction kinetics; platinum pyridine complex oxidation reduction. We’ll tell you more about this compound (cas:15227-42-6).

The kinetics of oxidation of cis-[PtCl2L2] (L = py, 3-methyl-, 3- and 4-chloro-, 3- and 4-cyanopyridine) by [AuCl4]- in the presence of [NEt4]Cl and of reduction of cis-[PtCl4L2] by [NEt4]I were studied in MeCN. The rate law for the oxidation reaction was rate = k3[PtCl2L2][AuCl4-][Cl-], where k3 was unaffected by changes in L and had a value ∼100 times higher than that previously found for related phenanthrolineplatinum(II) complexes. The rate law for the reduction reaction was rate = k2[PtCl4L2][I-], where k2 was influenced by the basicity of L, as in related phenanthrolineplatinum(IV) complexes. The kinetic results were discussed in terms of σ and π interactions between the Pt and L.

Although many compounds look similar to this compound(15227-42-6)Reference of cis-Dichlorobis(pyridine)platinum(II), 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

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 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, the main research direction is 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.Application of 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.

Although many compounds look similar to this compound(15227-42-6)Application 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

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.Kharitonov, Yu. Ya.; Evstaf’eva, O. N.; Baranovskii, I. B.; Mazo, G. Ya. researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Formula: C10H10Cl2N2Pt.They published the article 《Infrared spectroscopic study of dicyanato complexes of platinum》 about this compound( cas:15227-42-6 ) in Zhurnal Neorganicheskoi Khimii. Keywords: IR cyanide Pt complex; cyanide Pt complex IR; platinum cyanide complex IR. We’ll tell you more about this compound (cas:15227-42-6).

trans-[Pt(NH3)2(CN)2] (I), trans-[Pt(ND3)2(CN)2], trans-Pt(NH3)2(CN)2.AgNO3, trans-[Pt(NH3)2(CN)2X2] (II) where X = Cl, Br, I, or OH, trans-[Pt(ND3)2(CN)2X2] where X = Br or I, cis-[PtA(CN)2] where A = (NH3)2, (pyridine)2, ethylenediamine, or (thiourea)2, cis-[Pten(CN)2X2] where X is Br or OH were studied by ir spectroscopy. Maximum of these compounds are tabulated. On oxidation of Pt, the νpt-CN did not change while νC-N increased ∼40-70 cm.-1 All trans complexes had a singlet and all cis had a doublet νCN. The split for cis complexes was larger for Pt(II) than for Pt(IV). The force constant of the C-N bond changed insignificantly, especially in Pt(II) complexes, on transition from ionic to covalent cyanides. Apparently the σ-bond contribution is larger in Pt(IV) than in Pt(II) complexes. When I was oxidized to II (X = Br) and, this subsequently became reduced, the product obtained was identical with the starting material. The complexes did not rearrange on oxidation and the nature of the X in II did not affect the Pt-N bonds. The νPt-N of trans isomers were at ∼525-31 cm.-1 for Pt(II) or Pt(IV). For the complexes studied, the overall (σ + π) bond strength of Pt-N was approx. the same in Pt(II) and Pt(IV) complexes.

Although many compounds look similar to this compound(15227-42-6)Formula: C10H10Cl2N2Pt, 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

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 Redox-active films formed by electrochemical reduction of solutions of C60 and platinum complexes.Reference of cis-Dichlorobis(pyridine)platinum(II).

Electroreduction of a toluene-acetonitrile (4:1 volume/volume) solution of C60 and cis-Pt(py)2Cl2 in the presence of 0.10M tetra(n-butyl)ammonium perchlorate as supporting electrolyte produces a black, redox active film that coats the electrode surface. This film retains its redox activity when transferred to an acetonitrile solution that contains only the supporting electrolyte, 0.10M tetra(n-butyl)ammonium perchlorate. The film was characterized by IR spectroscopy, laser desorption mass spectrometry, and XPS spectroscopy. The formation of this film is dependent on the platinum complex used as precursor and on the potential range used during film growth. No film growth is observed when Pt(bipy)Cl2, Pt(py)2I2, cis-Pt(PPh3)2Cl2 or trans-Pt(py)2Cl2 were used as precursors, but {Pt(μ-Cl)Cl(C2H4)}2 is a useful precursor which allows film growth at less neg. potentials. Chem. prepared C60Pt1 is also electrochem. active when precipitated on a platinum electrode. The formation of an electroactive film from the electroreduction of C70 and cis-Pt(py)2Cl2 is also reported.

Although many compounds look similar to this compound(15227-42-6)Reference of cis-Dichlorobis(pyridine)platinum(II), 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

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, International Journal of Peptide & Protein Research called Peptide models for β-turns. A circular dichroism study, Author is Crisma, M.; Fasman, G. D.; Balaram, H.; Balaram, P., which mentions a compound: 61302-99-6, SMILESS is N[C@H](C)C(NC)=O.[H]Cl, Molecular C4H11ClN2O, Computed Properties of C4H11ClN2O.

The CD spectra of β-turn model peptides PhCH2O2C-Aib-Pro-Aib-Pro-OMe (I, Aib = NHCMe2CO), Piv-Pro-Aib-NHMe (II, Piv = Me3CCO), Piv-Pro-D-Ala-NHMe (III), and Piv-Pro-Val-NHMe (IV) were examined in methanol, hexafluoroisopropanol, and cyclohexane. Type I and Type II β-turns were observed for I and II, resp., in the solid state, while the Pro-D-Ala sequence adopts a Type II β-turn in a related peptide crystal structure. A class C spectrum was observed for I in various solvents, suggesting a variant of a Type I (III) structure. The Type II β-turn is characterized by a CD spectrum having two pos. CD bands at ∼230 nm and ∼202 nm, a feature observed in III in cyclohexane and methanol and for II in methanol. II exhibits solvent-dependent CD spectra, which may be rationalized by considering Type II, III and V reverse turn structures. IV adopts non-β-turn structures in polar solvents, but exhibits a class B spectrum in cyclohexane suggesting a population of Type I β-turns.

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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 Viscosity of liquid bromoalkanes at ambient pressure from 253.15 to 423.15 K: New experimental data and their free volume theory-based interpretation, published in 2020-11-01, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, HPLC of Formula: 693-67-4.

This work reports new exptl. data for the viscosity of 1-bromopenthane (within the temperature range (253.15-298.15) K), 1-bromohexane ((263.15-293.15) K), 1-bromoheptane ((263.15-298.15) K), 1-bromooctane ((253.15-293.15) K), 1-bromononane ((253.15-413.15) K), 1-bromodecane ((253.15-423.15) K), 1-bromoundecane ((283.15-423.15) K), 1-bromododecane ((273.15-293.15) K), and 1-bromohexadecane ((298.15-423.15) K). Considering them in combination with previously known data for these substances, it is shown that the viscosity of this series of 1-bromoalkanes accurately satisfies the Bingham-Coombs model based on the free volume approach. The quant. connection of the excluded volume with the van der Waals volume and the packing fraction is revealed.

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