Tag: M.W:200-300

Electric Literature of C11H23Br. 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 Imidazole and benzoimidazole derived new ionic liquid crystal compounds: synthesis, characterisation, mesomorphic properties and DFT computations. Author is Mohammad, AbdulKarim-Talaq; Khalefa, Omar S.; Srinivasa, H. T.; Ameen, Wissam Ahmed.

Four new series of ionic liquid crystals derived from imidazole bromonium and benzimidazole bromonium salts with spacer alkyl chain (Cn, n = 2, 4) were synthesized and characterized. The following tests and measurements have been performed: the FT-IR, 1H-NMR and 13C-NMR spectroscopy in addition to a CHN elemental anal. techniques. Both the differential scanning calorimetry and the polarizing optical microscopy measurements were applied for the evaluation of liquid crystals properties. The outcome confirms the existence of a smectic A liquid crystalline phase. A D. Functional Theory computations were performed to obtain the shape of the mol. structure that corresponds to the ground-state energy.

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

The three-dimensional configuration of the ester heterocycle is basically the same as that of the carbocycle. Compound: 1-Bromoundecane(SMILESS: CCCCCCCCCCCBr,cas:693-67-4) is researched.Recommanded Product: 1452-77-3. The article 《The Guanidine-Promoted Direct Synthesis of Open-Chained Carbonates》 in relation to this compound, is published in Australian Journal of Chemistry. Let’s take a look at the latest research on this compound (cas:693-67-4).

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

HPLC of Formula: 693-67-4. 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 Antiferroptotic Activity of Phenothiazine Analogues: A Novel Therapeutic Strategy for Oxidative Stress Related Disease. Author is Liu, Jun; Bandyopadhyay, Indrajit; Zheng, Lei; Khdour, Omar M.; Hecht, Sidney M..

The synthesis of series of lipophilic phenothiazine analogs I (n = 4, 5, 6, 8) that potently inhibit ferroptosis was reported in the present study. The most promising compounds I exhibited an improved protection compared to the parent phenothiazine against erastin- and RSL3-induced ferroptotic cell death. These analogs have equivalent or better potency than ferrostatin-1 (Fer-1) and liproxstatin-1 (Lip-1), which are among the most potent inhibitors of this regulated cell death described so far. They represent novel lead compounds with therapeutic potential in relevant ferroptosis-driven disease models such as FRDA.

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

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: 693-67-4, is researched, SMILESS is CCCCCCCCCCCBr, Molecular C11H23BrJournal, Article, Research Support, Non-U.S. Gov’t, Journal of the American Chemical Society called Targeted Delivery of mRNA with One-Component Ionizable Amphiphilic Janus Dendrimers, Author is Zhang, Dapeng; Atochina-Vasserman, Elena N.; Maurya, Devendra S.; Liu, Matthew; Xiao, Qi; Lu, Juncheng; Lauri, George; Ona, Nathan; Reagan, Erin K.; Ni, Houping; Weissman, Drew; Percec, Virgil, the main research direction is targeted mRNA delivery ionizable amphiphilic Janus dendrimer synthesis.HPLC of Formula: 693-67-4.

Targeted and efficient delivery of nucleic acids with viral and synthetic vectors is the key step of genetic nanomedicine. The four-component lipid nanoparticle synthetic delivery systems consisting of ionizable lipids, phospholipids, cholesterol, and a PEG-conjugated lipid, assembled by microfluidic or T-tube technol., have been extraordinarily successful for delivery of mRNA to provide Covid-19 vaccines. Recently, we reported a one-component multifunctional sequence-defined ionizable amphiphilic Janus dendrimer (IAJD) synthetic delivery system for mRNA relying on amphiphilic Janus dendrimers and glycodendrimers developed in our laboratory Amphiphilic Janus dendrimers consist of functional hydrophilic dendrons conjugated to hydrophobic dendrons. Co-assembly of IAJDs with mRNA into dendrimersome nanoparticles (DNPs) occurs by simple injection in acetate buffer, rather than by microfluidic devices, and provides a very efficient system for delivery of mRNA to lung. Here we report the replacement of most of the hydrophilic fragment of the dendron from IAJDs, maintaining only its ionizable amine, while changing its interconnecting group to the hydrophobic dendron from amide to ester. The resulting IAJDs demonstrated that protonated ionizable amines play dual roles of hydrophilic fragment and binding ligand for mRNA, changing delivery from lung to spleen and/or liver. Replacing the interconnecting ester with the amide switched the delivery back to lung. Delivery predominantly to liver is favored by pairs of odd and even alkyl groups in the hydrophobic dendron. This simple structural change transformed the targeted delivery of mRNA mediated with IAJDs, from lung to liver and spleen, and expands the utility of DNPs from therapeutics to vaccines.

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

Application In Synthesis of 1-Bromoundecane. 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: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Catalytic Asymmetric Fluorination of Copper Carbene Complexes: Preparative Advances and a Mechanistic Rationale. Author is Buchsteiner, Michael; Martinez-Rodriguez, Luis; Jerabek, Paul; Pozo, Iago; Patzer, Michael; Noethling, Nils; Lehmann, Christian W.; Fuerstner, Alois.

The Cu-catalyzed reaction of substituted α-diazoesters with fluoride gives α-fluoroesters with ee values of up to 95%, provided that chiral indane-derived bis(oxazoline) ligands were used that carry bulky benzyl substituents at the bridge and moderately bulky iso-Pr groups on their core. The apparently homogeneous solution of CsF in C6F6/hexafluoroisopropanol (HFIP) is the best reaction medium, but CsF in the biphasic mixture CH2Cl2/HFIP also provides good results. DFT studies suggest that fluoride initially attacks the Cu- rather than the C-atom of the transient donor/acceptor carbene intermediate. This unusual step is followed by 1,2-fluoride shift; for this migratory insertion to occur, the carbene must rotate about the Cu-C bond to ensure orbital overlap. The directionality of this rotatory movement within the C2-sym. binding site determines the sense of induction. This model is in excellent accord with the absolute configuration of the resulting product as determined by x-ray diffraction using single crystals of this a priori wax-like material grown by capillary crystallization

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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 Synthesis and biological evaluation of novel bis-quaternary ammonium compounds with p-terphenyl spacer, the main research direction is quaternary ammonium compound terphenyl spacer preparation SAR; antibacterial antifungal cytotoxicity human.Related Products of 693-67-4.

Bis-quaternary ammonium compounds I·2 Br- [R = H(CH2)n; n = 7, 8, 9, 10, 11] with a p-terphenyl spacer between two pyridinium heads were synthesized. I·2 Br- (n = 8) was superior to the known benzalkonium chloride, miramistin and chlorhexidine bisgluconate in its MIC values against five pathogenic bacteria.

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

Rieth, Thorsten; Tober, Natalie; Limbach, Daniel; Haspel, Tobias; Sperner, Marcel; Schupp, Niklas; Wicker, Philipp; Glang, Stefan; Lehmann, Matthias; Detert, Heiner published an article about the compound: 1-Bromoundecane( cas:693-67-4,SMILESS:CCCCCCCCCCCBr ).Application In Synthesis 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.

Tristriazolotriazines with a threefold alkoxyphenyl substitution were prepared and studied by DSC, polarized optical microscopy (POM) and X-ray scattering. Six pentyloxy chains are sufficient to induce liquid-crystalline behavior in these star-shaped compounds Thermotropic properties of tristriazolotriazines with varying substitution patterns and a periphery of linear chains of different lengths, branching in the chain and swallow-tails, are compared. Generally, these disks display broad and stable thermotropic mesophases, with the tangential tristriazolotriazines being superior to the radial isomer. The structure-property relationships of the number of alkyl chains, their position, length and structure were studied.

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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: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Ionic liquid crystals: Synthesis and characterization via NMR, DSC, POM, X-ray diffraction and ionic conductivity of asymmetric viologen bistriflimide salts.Reference of 1-Bromoundecane.

A series of asym. viologen bistriflimide salts I (R = n-pentyl, dodecyl, octadecyl, etc.) of both short and long alkyl chains were synthesized by the metathesis reaction of lithium triflimide salt with the resp. asym. viologen dibromide salts II in methanol. Their thermotropic liquid crystalline properties were determined by differential scanning calorimetry, polarizing optical microscopy and variable temperature X-ray diffraction techniques. These salts melt into highly-ordered smectic T phases i.e., crystal-to SmT transitions (Tms) at relatively low temperatures (lowest Tm at -12°C) and maintain liquid crystallinity in a wide range of temperatures (8-132°C), with excellent thermal stabilities up to 320°C as determined by thermogravimetric anal. These results differ with respect to the sym. viologen bistriflimide salts I. Ionic conductivity of these salts was also measured by dielec. impedance spectroscopy and found to be in the 10-2.5 S cm-1 range, highlighting their potential as electrolytes at room temperature

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

COA of Formula: C11H23Br. 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 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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Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem

Vereshchagin, Anatoly N.; Frolov, Nikita A.; Pakina, Anna S.; Hansford, Karl A.; Egorov, Mikhail P. published an article about the compound: 1-Bromoundecane( cas:693-67-4,SMILESS:CCCCCCCCCCCBr ).Synthetic Route of C11H23Br. 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.

Novel five bispyridinium salts based on a naphthalene-2,7-diylbis(oxy) spacer were synthesized. The obtained compounds showed stronger biol. activity against five strains of bacteria and two fungi as compared to modern biocides such as cetylpyridinium chloride, chlorhexidine bigluconate, 1-decyl-3-(4-(4-[(1-decylpyridin-1-ium-3-yl)oxy]phenyl)phenoxy)pyridin-1-ium dibromide, etc. used in the pharmaceutical market.

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