Day: April 12, 2022

The chemical properties of alicyclic heterocycles are similar to those of the corresponding chain compounds. Compound: cis-4-Aminocyclohexane carboxylic acid, is researched, Molecular C7H13NO2, CAS is 3685-23-2, about Synthesis and antitumor activity of nonsymmetric phosphoric acid triamides, the main research direction is phosphoric acid triamide nonsym preparation acute toxicity antitumor activity; amide phosphoric acid nonsym preparation acute toxicity antitumor activity.Formula: C7H13NO2.

R1R2P(O)NHR3 (R1, R2 independently = aziridino, N(CH2CH2Cl)2, NMe2, morpholino or NHCH2CH2OH; R3 = 4-R-substituted cyclohexyl (R = H, cis- and trans-CO2H, cis- and trans-CO2Et)) were prepared and tested for acute toxicity and antitumor activity. All the 12 tested compounds possess a lower antitumor activity as compared to that of the reference drug thiophosphamide. The antitumor activity of nonsym. phosphoric acid triamides is determined for the most part by the nature of amide residues attached at the P atom. The antitumor effect can be varied within a broad range by changing this residue, the maximum antitumor activity being inherent in nonsym. triamides containing the ethylenimine residue.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Computed Properties of C7H13NO2. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: cis-4-Aminocyclohexane carboxylic acid, is researched, Molecular C7H13NO2, CAS is 3685-23-2, about Approaches towards the synthesis of fluoro(cyclo)alkylamines. Author is Windhorst, A. D.; Bechger, L.; Visser, G. W. M.; Menge, W. P. M. B.; Leurs, R.; Timmerman, H.; Herscheid, J. D. M..

The synthesis of fluoro(cyclo)alkylamines 1-amino-6-fluorohexane, 1-amino-7-fluoroheptane, cis/trans-4-fluorocyclohexylamine and cis-4-fluoromethylcyclohexylamine has been investigated for use as synthons for histamine receptor ligands for use in PET.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Application of 56413-95-7. Aromatic compounds can be divided into two categories: single heterocycles and fused heterocycles. Compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about Low-Power Laser Ignition of an Antenna-Type Secondary Energetic Copper Complex: Synthesis, Characterization, Evaluation, and Ignition Mechanism Studies. Author is Shem-Tov, Daniel; Petrutik, Natan; Wurzenberger, Maximilian H. H.; Meincke, Melanie; Flaxer, Eli; Tumanskii, Boris; Zhang, Lei; Dobrovetsky, Roman; Fleischer, Sharly; Klapotke, Thomas M.; Stierstorfer, Jorg.

In recent years, development of new energetic compounds and formulations, suitable for ignition with relatively low-power lasers, is a highly active and competitive field of research. The main goal of these efforts is focused on achieving and providing much safer solutions for various detonator and initiator systems. In this work, a new laser-ignitable compound, based on the 5,6-bis(ethylnitroamino)-N′2,N′3-dihydroxypyrazine-2,3-bis(carboximidamide) (DS3) proligand is prepared, characterized, and thermal and ignition properties are studied. This new energetic proligand was prepared in three steps, starting with 5,6-bis(ethylamino)-pyrazine-2,3-dicarbonitrile. Crystallog. studies of the DS3-derived Cu(II) complex (DS4) revealed a unique stacked antenna-type structure of the latter compound DS4 has an exothermal temperature of 154.5° and was calculated to exhibit a velocity of detonation of 6.36 km·s-1 and a detonation pressure of 15.21 GPa. DS4 showed properties of a secondary explosive, having sensitivity to impact, friction, and electrostatic discharge of 8 J, 360 N, and 12 mJ, resp. In order to study the mechanism of ignition by a laser (using a diode laser, 915 nm), a set of experiments are conducted that enabled to characterize a photothermal ignition mechanism. Furthermore, it was found that a single pulse, with a time duration of 1 ms and with a total energy of 4.6 mJ, was sufficient for achieving a consistent and full ignition of DS4. Dual-pulse experiments, with variable time intervals between the laser pulses, showed that DS4 undergoes ignition via a photothermal mechanism. Finally, calculating the chem. mechanism of the formation of the complex DS4 and modeling its anhydrous and hydrated crystal structures (d. functional theory calculations using Gaussian and HASEM software) allowed to pinpoint a more precise location of water mols. in exptl. crystallog. data. These results suggest that DS4 has potential for further development to a higher technol. readiness level and for integration into small-size safe detonator systems as for many civil, aerospace, and defense applications.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

Palaima, A.; Poskiene, R.; Karpavicius, K.; Kil’disheva, O. V.; Knunyants, I. L. published an article about the compound: cis-4-Aminocyclohexane carboxylic acid( cas:3685-23-2,SMILESS:N[C@H]1CC[C@H](CC1)C(O)=O ).COA of Formula: C7H13NO2. 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:3685-23-2) through the article.

Mixtures of cis- and trans-3-(I) and 4-aminocyclohexanecarboxylic acid (II) were obtained by hydrogenation of the corresponding aminobenzoic acids. Trans-II and cis-I were obtained in 85 and 83% yield, resp., by separation of the mixture on a KU-2 cation exchanger. Cis-II was isomerized to 90% trans-II in the presence of 2% NaOH and Ni/Re catalyst. The Et and Me esters of the title compounds were also obtained.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

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.Takeda, Takashi; Ikemoto, Tomohiro; Yamamoto, Shunsuke; Matsuda, Wakana; Seki, Shu; Mitsuishi, Masaya; Akutagawa, Tomoyuki researched the compound: 5,6-Dichloropyrazine-2,3-dicarbonitrile( cas:56413-95-7 ).Related Products of 56413-95-7.They published the article 《Preparation, Electronic and Liquid Crystalline Properties of Electron-Accepting Azaacene Derivatives》 about this compound( cas:56413-95-7 ) in ACS Omega. Keywords: preparation electronic liquid crystalline property electron accepting azaacene derivative. We’ll tell you more about this compound (cas:56413-95-7).

A series of electron-accepting azaacene-type materials with different kinds and degrees of intermol. interactions were synthesized. Simple modification of the terminal substituents significantly modulated the photophys. and electrochem. properties. The degree of the weak intermol. interaction determined the emergence of a liquid crystalline (LC) phase for each compound Dipole-dipole interaction, π-π interaction and van der Waals interaction all contributed to stabilize the LC phase of I [R = C6H13, C12H25, C18H37] and II. The introduction of strong hydrogen bonding interaction enabled the formation of a highly ordered LC phase in III. Charge-transport properties of I, II and III were also investigated.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

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, Polyhedron called Synthesis and characterization of copper complexes with the 2,3-dicyano-5,6-dimercaptopyrazine ligand: Magnetic properties of a ferrocenium salt, Author is Belo, D.; Figueira, M. J.; Santos, I. C.; Gama, V.; Pereira, L. C.; Henriques, R. T.; Almeida, M., which mentions a compound: 56413-95-7, SMILESS is N#CC1=NC(Cl)=C(Cl)N=C1C#N, Molecular C6Cl2N4, Related Products of 56413-95-7.

(Bu4N)2[Cu(dcdmp)2], Bu4N[Cu(dcdmp)2] and [FeCp*2]2[Cu(dcdmp)2] (H2dcdmp = 2,3-dicyano-5,6-dimercaptopyrazine; Cp* = decamethylferrocenium) were obtained and characterized. (Bu4N)2Cu(Hdcdmp)2 crystallizes in the triclinic system, space group P1̅, Z = 1, with a 9.9512(6), b 10.541(1), c 13.221(1) Å, α 69.756(9), β 88.112(6) and γ 79.658(7)°. Its crystal structure consists of layers of well isolated square planar Cu(dcdmp)22- anions alternating with layers of Bu4N+ cations along b + c, and the magnetic properties in the range 2-300 K are close to those of an ideal paramagnet with an effective magnetic moment of 1.7 μB/f.u. Bu4N[Cu(dcdmp)2] crystallizes in the monoclinic space group C2/c, Z = 8, with a 35.281(4), b 9.501(1), c 21.885(2) Å and β 109.842(9)°, being isostructural with the Au analog previously described. [Fe(Cp*)2]2[Cu(dcdmp)2] crystallizes in the monoclinic system, space group C2/c, Z = 4, with a 15.891(1), b 10.5133(7), c 30.264(3) Å and β 91.105(2)°. Its crystal structure consists of out-of-registry columns, parallel to b, of alternated dianions and side-by-side pairs of cations, …A2-(D+D+)A2-(D+D+). This compound behaves as a paramagnet with weak antiferromagnetic interactions and no ordering down to 1.7 K. The magnetic properties, due to both cation and anion S = 1/2 contributions, show a large anisotropy, ascribed essentially to the g-factor anisotropy of the Fe(Cp*)2cations.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

HPLC of Formula: 3685-23-2. 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-4-Aminocyclohexane carboxylic acid, is researched, Molecular C7H13NO2, CAS is 3685-23-2, about cis-4-[[[(2-Chloroethyl)nitrosoamino]carbonyl]methylamino]cyclohexanecarboxylic acid, a nitrosourea with latent activity against an experimental solid tumor. Author is Johnston, Thomas P.; McCaleb, George S.; Rose, William C.; Montgomery, John A..

The title compound (I) was synthesized in five steps from cis-4-aminocyclohexanecarboxylic acid via the N-tosylated intermediate II. I, which is incapable of the facile decomposition that characterizes the clin. useful nitrosoureas, effected a significant cure rate of both early and established murine Lewis lung carcinoma, even though its in vitro half-life was ∼5.5 times that of the unmethylated parent compound This is the first observation of latent activity of a nitrosourea against an exptl. solid tumor.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Stereochemical investigations of 1,4-substituted cyclohexane derivatives. 4-Hydroxy- and 4-aminocyclohexane-1-carboxylic acid and their esters; and 4-hydroxy-1-hydroxymethylcyclohexane》. Authors are Schneider, Woldemar; Huettermann, A..The article about the compound:cis-4-Aminocyclohexane carboxylic acidcas:3685-23-2,SMILESS:N[C@H]1CC[C@H](CC1)C(O)=O).HPLC of Formula: 3685-23-2. Through the article, more information about this compound (cas:3685-23-2) is conveyed.

Malonic ester synthesis with ethyl β-chloropropionate, followed by ring closure of the product obtained gave 4-hydroxy-1-cyclohexanone (I). Hydrogenation of I (Raney-Ni, atm. pressure, room temperature) in alk. medium gave cis-4-hydroxycyclohexane-1-carboxylic acid (cis-II), m. 152°; Et ester, (cis-III) b12 130°. Hydrogenation of ethyl 4-hydroxybenzoic acid (Raney-Ni, 150 atm., 150°) gave trans-III, b13 139-140°, saponification of which gave the trans-II, m. 119.5°. Reduction of trans-III with Na-EtOH or LiAlH4, gave a cis-trans mixture of 4-hydroxy-1-hydroxymethylcyclohexane (IV), from which the trans isomer (V) was separated, m. 104°; the cis isomer (VI) was recovered by distillation from the residue. Hydrogenation of ethyl 4-aminobenzoic acid (Ru-C, 110 atm., 80°) gave a cis-trans mixture of 4-amino-1-carbethoxycyclohexane (VII), which was separated by distillation, giving cis-VII and trans-VII. The exptl. determined dipole moments (μ in Debye units) of these compounds are: cis-II 2.10 ± 0.1, trans-II 246 ± 0.002, cis-III 2.86 ± 0.03, trans-III 2.56 ± 0.04, VI 2.29 ± 0.02, V 2.60 ± 0.1, cis-VII 2.60 ± 0.01, and trans-VII 2.44 ± 0.02.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

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: 5,6-Dichloropyrazine-2,3-dicarbonitrile, is researched, Molecular C6Cl2N4, CAS is 56413-95-7, about N-Phenylfluorubine: one functional dye – chromophore, fluorophore, electron-acceptor and more.Computed Properties of C6Cl2N4.

We are presenting a new derivative of the fluorubine family which exhibits highly fluorescent activity. 5-Phenyl-dihydro[5,6,7,12,13,14]-hexaazapentacene was synthesized via two subsequent cyclization reactions starting from com. available starting materials. Its properties were studied intensively via UV-vis and fluorescence spectroscopy, as well as cyclic voltammetry and quantum chem. calculations Furthermore, we found a strong pH-sensitivity, which influences the photo- and electrochem. properties heavily. Thereby, it is possible to tune its properties from an electron-rich donor to a highly electron-deficient acceptor material.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate

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, U.S. Gov’t, Non-P.H.S., Brain Research called Effects of some conformationally restricted GABA analogs on GABA membrane binding and nerve ending transport, Author is Hitzemann, Robert J.; Loh, Horace H., which mentions a compound: 3685-23-2, SMILESS is N[C@H]1CC[C@H](CC1)C(O)=O, Molecular C7H13NO2, Electric Literature of C7H13NO2.

By using a series of aminocyclopentane- and aminocyclohexanecarboxylic acids, as well as some naturally occurring amino acids, it was possible to determine some aspects of the spatial topog. of the GABA [56-12-2] membrane binding and transport sites in the rat brain. The Na-independent GABA binding site had a different spatial topog. than the Na-dependent binding site in that (±)-trans-3-aminocyclopentanecarboxylic acid (I) [19297-28-0] was 7-fold more potent than (±)-cis-3-aminocyclopentanecarboxylic acid (II) [49805-32-5] in inhibiting Na-independent binding, but only 1.6 times more potent in inhibiting Na-dependent binding. The nerve ending GABA transport site was similar to the Na-dependent GABA binding site in that it accommodated both I and II. However, the transport site differed from the binding site in that II was a potent inhibitor of transport but a weak inhibitor of binding. In addition to the differences in spatial characteristics, differences in the subcellular distribution of Na-independent and Na-dependent binding sites were observed The former were found primarily in the nerve ending-mitochondrial fraction, whereas the latter were primarily found in the microsomal fraction.

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Reference:
Synthesis and Crystal Structure of a Chiral C3-Symmetric Oxygen Tripodal Ligand and Its Applications to Asymmetric Catalysis,
Chiral lanthanide(III) complexes of sulphur–nitrogen–oxygen ligand derived from aminothiourea and sodium D-camphor-β-sulfonate