Month: March 2022

Formula: C11H23Br. 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: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Liquid crystal and photoluminescent properties of a series of symmetrical 1,2-bis(4-alkoxybenzylidene)hydrazines bearing long-tails of hydrocarbon chain. Author is Al-Karawi, Ahmed Jasim M.; OmarAli, Al-Ameen Bariz; Awad, Adil A.; Doungmo, Giscard; Terraschke, Huayna.

In this work, 1,2-bis[4-(n-alkoxy)benzylidene]hydrazine (n-alkoxy: O(CH2)nH, n = 11-18 or 20), a sym. series of azines (linear compounds with rod-like shape structure), were synthesized using a very simple two-step procedure as a part of our continuing effort in evaluating hydrophobic 1,2-disubstituted hydrazine compounds as photoluminescent liquid crystalline materials. The first step of the synthesis involved the alkylation of the OH group of 4-hydroxybenzaldehyde in basic medium using the Williamson method to obtain 4-alkoxybenzaldehydes. While the second step included the condensation reaction of hydrazine hydrate and appropriately 4-alkoxybenzaldehydes compounds (mole ratio 1:2, resp.) in acidic medium under ambient conditions. The prepared compounds were characterised and their structures elucidated depending upon IR (IR), UV-visible (UV-Vis), NMR (1HNMR, 13CNMR, DEPT NMR, 2D 1H-1H-COSY and 2D 1H-13C- HSQC) and elemental anal. (CHN). Liquid crystalline behavior and photoluminescent properties were studied using polarised light optical microscopy (POM), fluorescence emissions (FE), differential scanning calorimetry (DSC) and X-ray powder diffraction (XRD) techniques. The studies showed that all of these compounds were enantiotropic liquid crystalline materials exhibiting smectic (SmA and SmC) and nematic (droplet and thread) mesophases . The study also displayed that all of the prepared compounds were photoluminescent in the crystalline and liquid crystal states.

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

Safety of 1-Bromoundecane. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Synthesis and Physical Properties of Tunable Aryl Alkyl Ionic Liquids (TAAILs). Author is Lerch, Swantje; Strassner, Thomas.

A series of tunable aryl alkyl ionic liquids I [R = 2-Me, 4-Br, 2,4-di-Me, etc.; n = 4,5,6,7,8,9,10,11,12] with different properties due to the electron-donating or -withdrawing effect of the substituents at the aryl ring was developed. Herein, a wide variety of those ionic liquids (ILs) was presented in terms of their cation structure. The synthesized ILs containing the bromide or bis(trifluoromethane)sulfonimide anion and 1-aryl-3-alkyl imidazolium cations with various substituents in the ortho and/ or para position of the Ph ring and alkyl chains of different lengths varying from Bu to dodecyl. The differences of their phys. properties (m.p., thermal decomposition, viscosity, electro-chem. window) of these ILs were reported according to their structure.

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

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 Reactions of potassium tetrachloroplatinate(II) with pyridine derivatives in dimethylformamide and synthesis of potassium trichloro(pyridine)platinum(II), published in 1978-02-15, which mentions a compound: 15227-42-6, Name is cis-Dichlorobis(pyridine)platinum(II), Molecular C10H10Cl2N2Pt, Application of 15227-42-6.

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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Tetrahydroisoquinoline – Wikipedia,
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Electric Literature 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 Synthesis, characterization and cytotoxicity of some palladium(II), platinum(II), rhodium(I) and iridium(I) complexes of ferrocenylpyridine and related ligands. Crystal and molecular structure of trans-dichlorobis(3-ferrocenylpyridine)palladium(II). Author is Rajput, Jaisheila; Moss, John R.; Hutton, Alan T.; Hendricks, Denver T.; Arendse, Catherine E.; Imrie, Christopher.

The preparation of a series of ferrocenyl nitrogen donor ligands including ferrocenylpyridines, ferrocenylphenylpyridines and 1,1′-di(2-pyridyl)ferrocene is described. Coordination studies of the substituted pyridines (L) were carried out with platinum, palladium, rhodium and iridium. This resulted in the preparation of the following types of complexes: [MCl(CO)2(L)] and [M(cod)(L)2]ClO4 where M = Rh or Ir, cod = 1,5-cyclooctadiene; [M’Cl2(L)2] where M’ = Pt or Pd. The X-ray crystal structure of trans-dichlorobis(3-ferrocenylpyridine)palladium was obtained. The complexes were screened for activity against two human cancer cell lines. At least two of the complexes displayed growth inhibition similar to that of the widely used chemotherapeutic agent, cisplatin.

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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, Article, Research Support, Non-U.S. Gov’t, Journal of Organic Chemistry called δ-Valerolactamic quaternary amino acid derivatives: Enantiodivergent synthesis and evidence for stereodifferentiated β-turn-inducing properties, Author is Zhang, Xiaofei; Ligny, Romain; Chewchanwuttiwong, Sopa; Hadade, Rawan; Laurent, Mathieu Y.; Martel, Arnaud; Jacquemmoz, Corentin; Lhoste, Jerome; Bricaud, Sullivan; Py, Sandrine; Dujardin, Gilles, which mentions a compound: 61302-99-6, SMILESS is N[C@H](C)C(NC)=O.[H]Cl, Molecular C4H11ClN2O, Product Details of 61302-99-6.

Enantiopure (R) and (S) cyclic α,α-disubstituted amino acid derivatives displaying a δ-valerolactam side chain were prepared from a common isoxazolidine precursor. The (R)-configured δ-valerolactam (I) was converted into diastereoisomeric pseudopeptides to investigate its ability to induce secondary structures in peptidomimetics. Conformational studies of these pseudopeptides were carried out in the solid state (X-ray diffraction), in solution (NMR analyses), and in silico (computer-aided conformational anal.), which demonstrated that such quaternary amino acids induce β-turn conformations stable enough to be retained in polar media (DMSO). Incorporation of this new type of α,α-disubstituted amino acid into a representative pseudopeptidic sequence by N- then C-elongation and N-debenzylation is also described herein and could serve for the synthesis of various structured peptidomimetics.

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Tetrahydroisoquinoline – Wikipedia,
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Recommanded Product: Picolinamide. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. 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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Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Application of 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 Thermal isomerization of complex platinum(II) compounds. Author is Kukushkin, Yu. N..

The thermal cis-trans isomerization of [PtA2I2] complexes, where A = NH3, MeNH2, EtNH2, pyridine, was studied by derivatography. The heat of isomerization is 1-7 kcal/mole. trans-[Pt(R2SO)ACl2]-type complexes melt upon heating and isomerize in the melt. The isomerization reaction proceeds through formation of a tetrahedral intermediate.

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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.Norden, Bengt researched the compound: cis-Dichlorobis(pyridine)platinum(II)( cas:15227-42-6 ).Reference of cis-Dichlorobis(pyridine)platinum(II).They published the article 《Rearrangement of a platinum(II) complex in DNA from intercalation outer-sphere position to non-intercalation coordination》 about this compound( cas:15227-42-6 ) in FEBS Letters. Keywords: DNA interaction platinum dipyridine complex. We’ll tell you more about this compound (cas:15227-42-6).

The interaction of I with DNA was studied using linear dichroism and absorption spectra of DNA solutions containing different concentrations of I. The initial complex had a stability constant of 3 × 105M-1 and the orientation of the I plane was angular, indicating that binding was by intercalation. This intercalated complex slowly transformed into a more stable complex with the orientation of the I plane parallel to the helix axis. In this complex there was coordination of I to N atoms of DNA bases. This complex involved the inner sphere of DNA. When II interacted with DNA, a complex was formed in which inner sphere coordination was present; II did not intercalate with DNA.

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

Name: 1-Bromoundecane. The mechanism of aromatic electrophilic substitution of aromatic heterocycles is consistent with that of benzene. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Rhodium-catalyzed direct alkylation of benzylic amines using alkyl bromides. Author is Anschuber, Martin; Pollice, Robert; Schnuerch, Michael.

The development and substrate scope evaluation of a direct alkylation protocol of the C(sp3)-H bond of benzylic amines using alkyl bromides was reported. This pyridine-directed method was initiated by elimination of the alkyl bromide to a terminal olefin, which was then the true alkylating agent.

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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 Far infrared spectra of palladium compounds. II. Pyridine and 2,2′-bipyridyl complexes of palladium(II) and platinum(II), the main research direction is PALLADIUM COMPLEX IR SPECTRA; IR SPECTRA PD COMPLEX; PLATINUM COMPLEX; PYRIDINE COMPLEX; BIPYRIDYL COMPLEX.Safety of cis-Dichlorobis(pyridine)platinum(II).

The IR spectra of several sq. planar cis and trans Pd(II) and Pt(II) pyridine complexes of the type M(py)2X2 (where X = Cl, Br, and I) have been recorded from 2000 to 50 cm.-1 Comparison of the spectra of complexed pyridine to that of the free base shows 9 normal vibrations have shifted to higher frequencies on the order of 15 to 80 wave numbers The shifts are attributed to changes in the electron d. over the pyridine ring. Only insignificant shifts in a few of the normal modes of the complexed pyridine were observed between the corresponding cis and trans isomers. The assignment of the M-X stretching and bending vibrations as well as possible assignments for the M-N stretching vibrations are given and discussed. The IR spectra of Pd(II)-2,2-bipyridyl (bipy) complexes of the type Pd(bipy)2X2 (where X = Cl, Br, and I) were also recorded from 2000 to 50 cm.-1 Comparison of the spectra to those of the pyridine complexes and the free bipyridine is made. 18 references.

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