Category: 693-67-4

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.Tun Nur Iskandar, Nur Amanina Juniasari; Guan-Yeow, Yeap; Maeta, Nobuyuki; Ito, Masato M.; Nakamura, Yoshiyuki; Gas, Katarzyna; Sawicki, Maciej researched the compound: 1-Bromoundecane( cas:693-67-4 ).Application of 693-67-4.They published the article 《Anisotropic and magnetic properties in non-metal and non-radical organic aggregates of tri-substituted phenyl derivatives》 about this compound( cas:693-67-4 ) in New Journal of Chemistry. Keywords: alkoxy Ph imine biphenyl ester preparation anisotropic magnetic property. We’ll tell you more about this compound (cas:693-67-4).

A new series of tri-substituted Ph derivatives containing an aromatic imine unit and biphenyl ester possessing various numbers of carbon atoms at the terminal alkoxy chain, OCnH2n+1 (n = 7-12), along with a lateral o-ethoxy substituent have been successfully prepared and characterized by CHN microanal. along with spectroscopic techniques (FTIR, 1H- and 13C-NMR). The texture observation under polarized light revealed that all the soft condensed materials exhibited an enantiotropic nematic (N) phase. The current studies have shown that the mesomorphic behavior is greatly influenced by the length of the alkoxy chains wherein the thermal stability of a tri-substituted Ph derivative will decrease if the terminal alkoxy chain is increased from n = 7 to 12. For the first time, these materials which do not possess any magnetic species in their structure, demonstrate magnetic interaction through naked eye observation as well as quant. measurement using a SQUID magnetometer.

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

The preparation of ester heterocycles mostly uses heteroatoms as nucleophilic sites, which are achieved by intramolecular substitution or addition reactions. Compound: 1-Bromoundecane( cas:693-67-4 ) is researched.Recommanded Product: 1-Bromoundecane.Congdon, Molly; Fritzemeier, Russell G.; Kharel, Yugesh; Brown, Anne M.; Serbulea, Vlad; Bevan, David R.; Lynch, Kevin R.; Santos, Webster L. published the article 《Probing the substitution pattern of indole-based scaffold reveals potent and selective sphingosine kinase 2 inhibitors》 about this compound( cas:693-67-4 ) in European Journal of Medicinal Chemistry. Keywords: alkylindolyl oxadiazolylpyrrolidine preparation sphingosine kinase inhibition SAR mol docking; Molecular docking; SAR; SphK2; Sphingosine; Sphingosine 1-phosphate; Sphingosine kinase. Let’s learn more about this compound (cas:693-67-4).

Elevated levels of sphingosine 1-phosphate (S1P) and increased expression of sphingosine kinase isoforms (SphK1 and SphK2) have been implicated in a variety of disease states including cancer, inflammation, and autoimmunity. Selective inhibition of either SphK1 or SphK2 has been demonstrated to be effective in modulating S1P levels in animal models. Previously, authors reported a SphK2 naphthalene-based selective inhibitor, (R)-2-(3-(7-(pentyloxy)naphthalen-2-yl)-1,2,4-oxadiazol-5-yl)pyrrolidine-1-carboximidamide hydrochloride, which displays approx. 7-fold selectivity for hSphK2 over hSphK1 and has a SphK2 Ki value of 1.0μM. To improve SphK2 potency and selectivity, author’s designed, synthesized, and evaluated a series of indole-based compounds derived from (R)-2-(3-(7-(pentyloxy)naphthalen-2-yl)-1,2,4-oxadiazol-5-yl)pyrrolidine-1-carboximidamide hydrochloride. After investigating substitution patterns around the indole ring, author’s discovered that 1,5-disubstitution promoted optimal binding in the SphK2 substrate binding site and subsequent inhibition of enzymic activity. Author’s studies led to the identification of I (SphK2 Ki = 90 nM, >110 fold selective for SphK2 over SphK1). Mol. modeling studies revealed key nonpolar interactions with Val308, Phe548, His556, and Cys533 and hydrogen bonds with both Asp211 and Asp308 as responsible for the high SphK2 inhibition and selectivity.

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

Reference of 1-Bromoundecane. 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 Synthesis and Docking Study of N-(Cinnamoyl)-N’-(substituted)acryloyl Hydrazide Derivatives Containing Pyridinium Moieties as a Novel Class of Filamentous Temperature-Sensitive Protein Z Inhibitors against the Intractable Xanthomonas oryzae pv. oryzae Infections in Rice. Author is Zhou, Xiang; Feng, Yu-Mei; Qi, Pu-Ying; Shao, Wu-Bin; Wu, Zhi-Bing; Liu, Li-Wei; Wang, Yi; Ma, Hao-Dong; Wang, Pei-Yi; Li, Zhong; Yang, Song.

A series of novel N-(cinnamoyl)-N’-(substituted)acryloyl hydrazide derivatives containing pyridinium moieties I•X- [n = 4-11; R = Ph, 4-FC6H4, 2-thienyl, etc.; X = Br, I] were designed, and the anti-Xoo activity was determined The bioassay results showed that compound I•Br- [n = 10; R = Ph; X = Br] had excellent anti-Xoo activity (EC50 = 0.99 mg L-1) in vitro and distinct curative activity (63.2% at 200 mg L-1) in vivo. Further studies revealed that these designed compounds were XooFtsZ inhibitors, validating by the reduced GTPase activity of recombinant XooFtsZ, the non-filamentous XooFtsZ assembly observed in the TEM images, and the prolonged Xoo cells from the fluorescence patterns. Computational docking studies showed that compound I•Br- [n = 10; R = Ph; X = Br] had strong interactions with ASN34, GLN193, and GLN197 residues located in the α helix regions of XooFtsZ. The present study demonstrated the developed FtsZ inhibitors could serve as agents to control Xoo-induced infections.

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

Application of 693-67-4. 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. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Effect of n-alkyl substitution on Cu(II)-selective chemosensing of rhodamine B derivatives.

Rhodamine B hydrazide-based mol. probes (1-10) were synthesized by derivatization with n-alkyl chains of different lengths at the hydrazide amino end. These probes exhibited selective absorption (A∼557) and fluorescence (I∼580) ‘off-on’ signal transduction along with a colorless → magenta color transition in the presence of Cu(II) ions among all the competitive metal ions investigated. The effective coordination of these probes to Cu(II) ions under the investigated environment forming [Cu·L]2+ (L = 1-5) and [Cu·L2]2+ (L = 6-10) complexes led to their spiro-ring opening, which in turn was expressed through signatory spectral peaks of ring-opened rhodamine. All these probes exhibited Cu(II) selectivity in signalling despite structural modifications to the core receptor unit through variation of the nature of the alkyl substituents. However, the sensitivity of the signalling and kinetics of the spiro-ring opening varied and could be correlated with the number of carbon atoms present in the n-alkyl substituents. Structural elucidation with X-ray diffraction and X-ray photoemission spectroscopic analyses provided further insight into the structure-function correlation in their Cu(II) complexes. These probes with Cu(II) coordination showed selectivity in signalling, high complexation affinity (log Ka = 4.8-8.8), high sensitivity (LOD = 4.1-80 nM), fast response time (rate = 0.0017-0.0159 s-1) and reversibility with counter anions, which ascertained their potential utility as chemosensors for Cu(II) ion detection.

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

Quality Control 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 Viscosity of liquid bromoalkanes at ambient pressure from 253.15 to 423.15 K: New experimental data and their free volume theory-based interpretation. Author is Ryshkova, Olga S.; Belenkov, Roman N.; Postnikov, Eugene B..

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

Recommanded Product: 1-Bromoundecane. 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 The Guanidine-Promoted Direct Synthesis of Open-Chained Carbonates. Author is Shang, Yuhan; Zheng, Mai; Zhang, Haibo; Zhou, Xiaohai.

In order to reduce CO2 accumulation in the atm., chem. fixation methodologies were developed and proved to be promising. In general, CO2 was turned into cyclic carbonates by cycloaddition with epoxides. However, the cyclic carbonates need to be converted into open-chained carbonates by transesterification for industrial usage, which results in wasted energy and materials. Herein, a process catalyzed by tetramethylguanidine (TMG) to afford linear carbonates directly is reported. This process is greener and shows potential for industrial applications.

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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 Dictating Nanoparticle Assembly via Systems-Level Control of Molecular Multivalency, published in 2019-09-18, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, Recommanded Product: 693-67-4.

Nanoparticle assembly can be controlled by multivalent binding interactions between surface ligands, indicating that more precise control over these interactions is important to design complex nanoscale architectures. It has been well-established in natural materials that the arrangement of different mol. species in three dimensions can affect the ability of individual supramol. units to coordinate their binding, thereby regulating the strength and specificity of their collective mol. interactions. However, in artificial systems, limited examples exist that quant. demonstrate how changes in nanoscale geometry can be used to rationally modulate the thermodn. of individual mol. binding interactions. As a result, the use of nanoscale design features to regulate mol. bonding remains an underutilized design handle to control nanomaterials synthesis. Here we demonstrate a polymer-coated nanoparticle material where supramol. bonding and nanoscale structure are used in conjunction to dictate the thermodn. of their multivalent interactions, resulting in emergent bundling of supramol. binding groups that would not be expected on the basis of the mol. structures alone. Addnl., we show that these emergent phenomena can controllably alter the superlattice symmetry by using the mesoscale particle arrangement to alter the thermodn. of the supramol. bonding behavior. The ability to rationally program mol. multivalency via a systems-level approach therefore provides a major step forward in the assembly of complex artificial structures, with implications for future designs of both nanoparticle- and supramol.-based materials.

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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.Vereshchagin, Anatoly N.; Gordeeva, Alexandra M.; Frolov, Nikita A.; Proshin, Pavel I.; Hansford, Karl A.; Egorov, Mikhail P. researched the compound: 1-Bromoundecane( cas:693-67-4 ).Application In Synthesis of 1-Bromoundecane.They published the article 《Synthesis and Microbiological Properties of Novel Bis-Quaternary Ammonium Compounds Based on Biphenyl Spacer》 about this compound( cas:693-67-4 ) in European Journal of Organic Chemistry. Keywords: quaternary ammonium biphenyl compound preparation antibacterial antifungal antitumor human. We’ll tell you more about this compound (cas:693-67-4).

Novel gemini (tail-head-spacer-head-tail) bis-quaternary ammonium compounds (bis-QACs) I (Hal = Cl, Br, I; n = 7, 8, 9, etc.) with a biphenyl spacer between two pyridinium heads were synthesized and compared with commonly used antiseptics such as benzalkonium chloride (BAC) and chlorhexidine digluconate (CHG). The series of compounds showed high inhibitory activity against five bacterial strains and two fungi. The compounds, which contain C8H17-C10H21 aliphatic tails were best within the series. A counterion change does not affect MIC in general. Cytotoxicity on human embryonic kidney cells and haemolysis were also investigated. Among the bis-QACs, cytotoxic effect was lower for I (Hal = Br; n = 12), which is the closest structural analog of BAC.

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

Garcia, Anthony D.; Leech, Matthew C.; Petti, Alessia; Denis, Camille; Goodall, Iain C. A.; Dobbs, Adrian P.; Lam, Kevin published an article about the compound: 1-Bromoundecane( cas:693-67-4,SMILESS:CCCCCCCCCCCBr ).Safety of 1-Bromoundecane. 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.

A new electrochem. methodol. has been developed for the preparation of a wide variety of functionalized orthoesters under mild and green conditions from easily accessible dithiane derivatives [e.g., I → II (99%) in MeOH in presence of NaOMe using graphite electrodes]. The new methodol. also offers an unprecedented way to access tri(fluorinated) orthoesters, a class of compound that has never been studied before. This provides the community with a rapid and general method to prepare libraries of functionalized orthoesters from simple and readily available starting materials.

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Tetrahydroisoquinoline – Wikipedia,
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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: 693-67-4, is researched, Molecular C11H23Br, about Rhodium-catalyzed direct alkylation of benzylic amines using alkyl bromides, the main research direction is benzylmethylamino pyridine alkyl bromide rhodium catalyzed alkylation; Catalysis; C–H activation; C–H functionalization; Directing group.SDS of cas: 693-67-4.

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,
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