Tag: M.W:200-300

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.Application of 693-67-4.Liu, Yixian; Xu, William Z.; Charpentier, Paul A. published the article 《Reactivity Ratios of MMA and N,N-Dimethyl-N-{2-[(2-methylprop-2-enoyl)oxy]ethyl}undecane-1-aminium Bromide in Thermal and UV Initiation Copolymerization》 about this compound( cas:693-67-4 ) in Industrial & Engineering Chemistry Research. Keywords: reactivity MMA dimethylmethylpropenoyloxyethylundecaneaminium bromide copolymerization. Let’s learn more about this compound (cas:693-67-4).

Reactivity ratios for the copolymerization of Me methacrylate (MMA) and a quaternary ammonium compound (QAC) N,N-dimethyl-N-{2-[(2-methylprop-2-enoyl)oxy]ethyl}undecane-1-aminium bromide (dMEMUABr) were measured for the first time by using a thermal initiator azobisisobutyronitrile (AIBN) in deuterated DMSO (DMSO-d6) and deuterated chloroform (CDCl3) and a photo initiator 2-hydroxy-2-methylpropiophenone (HMP) under UV irradiation in CDCl3, resp. The consumption profiles for monomer in the thermal initiation copolymerization were monitored by in-situ 1H NMR while the data were analyzed by the Meyo-Lewis, Kelen-Tudos, and Meyer-Lowry methods, showing that the reactivity ratio of dMEMUABr is lower than that of MMA in DMSO-d6 but much higher in CDCl3. The significantly different reactivity ratios of dMEMUABr in DMSO-d6 from that in CDCl3 are attributed to micelle formation. These findings enable addnl. flexibility in the design and development of antimicrobial poly(MMA-co-dMEMUABr) coatings with desired copolymer chain sequence.

The article 《Reactivity Ratios of MMA and N,N-Dimethyl-N-{2-[(2-methylprop-2-enoyl)oxy]ethyl}undecane-1-aminium Bromide in Thermal and UV Initiation Copolymerization》 also mentions many details about this compound(693-67-4)Application of 693-67-4, you can pay attention to it, because details determine success or failure

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

Tahtaci, Hakan; Aydin, Gozde published an article about the compound: 1-Bromoundecane( cas:693-67-4,SMILESS:CCCCCCCCCCCBr ).COA of Formula: 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.

In this study, a new series of substituted 1,3,4-thiadiazol-2(3H)-one derivatives I [R = Et, CH2CH=CH2, cyclohexylmethyl, etc.] was synthesized in yields ranging from 42 to 70% via reaction of alkyl bromides with 1-(4-chlorophenyl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)ethanol with an interesting mechanism that involved internal nucleophilic substitution followed by an SN2-type nucleophilic substitution. First, 1-(4-chlorophenyl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)ethanone was synthesized from the reaction of 5-methyl-1,3,4-thiadiazole-2-thiol with 2-bromo-1-(4-chlorophenyl)ethanone which underwent reduction to afford 1-(4-chlorophenyl)-2-((5-methyl-1,3,4-thiadiazol-2-yl)thio)ethanol. The advantages of this protocol were synthesis of target compounds under mild conditions using simple synthetic methods and obtaining them without phosgene.

The article 《A simple and efficient approach for the synthesis of a novel class aliphatic 1,3,4-thiadiazol-2(3H)-one derivatives via intramolecular nucleophilic substitution reaction》 also mentions many details about this compound(693-67-4)COA of Formula: C11H23Br, you can pay attention to it, because details determine success or failure

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

Name: 4-Chloro-4′-ethynyl-1,1′-biphenyl. 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: 4-Chloro-4′-ethynyl-1,1′-biphenyl, is researched, Molecular C14H9Cl, CAS is 57399-11-8, about Synthesis and Antiplasmodial Activity of New Indolone N-Oxide Derivatives. Author is Nepveu, Francoise; Kim, Sothea; Boyer, Jeremie; Chatriant, Olivier; Ibrahim, Hany; Reybier, Karine; Monje, Marie-Carmen; Chevalley, Severine; Perio, Pierre; Lajoie, Barbora H.; Bouajila, Jalloul; Deharo, Eric; Sauvain, Michel; Tahar, Rachida; Basco, Leonardo; Pantaleo, Antonella; Turini, Francesco; Arese, Paolo; Valentin, Alexis; Thompson, Eloise; Vivas, Livia; Petit, Serge; Nallet, Jean-Pierre.

A series of 66 new indolone-N-oxide derivatives, e.g. I, was synthesized with three different methods. Compounds were evaluated for in vitro activity against CQ-sensitive (3D7), CQ-resistant (FcB1), and CQ and pyrimethamine cross-resistant (K1) strains of Plasmodium falciparum (P.f.), as well as for cytotoxic concentration (CC50) on MCF7 and KB human tumor cell lines. Compound II (5-methoxy-indolone-N-oxide analog) had the most potent antiplasmodial activity in vitro (<3 nM on FcB1 and = 1.7 nM on 3D7) with a very satisfactory selectivity index (CC50 MCF7/IC50 FcB1: 14623; CC50 KB/IC50 3D7: 198823). In in vivo experiments, compound I (dioxymethylene derivatives of the indolone-N-oxide) showed the best antiplasmodial activity against Plasmodium berghei, 62% inhibition of the parasitemia at 30 mg/kg/day. After consulting a lot of data, we found that this compound(57399-11-8)Name: 4-Chloro-4′-ethynyl-1,1′-biphenyl can be used in many types of reactions. And in most cases, this compound has more advantages.

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

Electric Literature of C11H23Br. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Charge Transportation and Chirality in Liquid Crystalline Helical Network Phases of Achiral BTBT-Derived Polycatenar Molecules. Author is Kwon, Ohjin; Cai, Xiaoqian; Qu, Wentao; Liu, Feng; Szydlowska, Jadwiga; Gorecka, Ewa; Han, Moon Jong; Yoon, Dong Ki; Poppe, Silvio; Tschierske, Carsten.

First examples of multichain (polycatenar) compounds, based on the π-conjugated [1]benzothieno[3,2-b]benzothiophene unit (I, R = alkyl homologs) are designed, synthesized, and their soft self-assembly and charge carrier mobility are investigated. These compounds, terminated by the new fan-shaped 2-brominated 3,4,5-trialkoxybenzoate moiety, form bicontinuous cubic liquid crystalline (LC) phases with helical network structure over extremely wide temperature ranges (>200 K), including ambient temperature Compounds with short chains show an achiral cubic phase with the double network, which upon increasing the chain length, is at first replaced by a tetragonal 3D phase and then by a mirror symmetry is broken triple network cubic phase. In the networks, the capability of bypassing defects provides enhanced charge carrier mobility compared to imperfectly aligned columnar phases, and the charge transportation is non-dispersive, as only rarely observed for LC materials. At the transition to a semicrystalline helical network phase, the conductivity is further enhanced by almost one order of magnitude. In addition, a mirror symmetry broken isotropic liquid phase is formed beside the 3D phases, which upon chain elongation is removed and replaced by a hexagonal columnar LC phase.

After consulting a lot of data, we found that this compound(693-67-4)Electric Literature of C11H23Br can be used in many types of reactions. And in most cases, this compound has more advantages.

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, Applied Organometallic Chemistry called Mn(II) and Zn(II) complexes of a benzimidazole ligand having undecyl chains: Crystal structures, photophysical and thermal properties, Author is Kirpik, Hilal; Kose, Muhammet, the main research direction is manganese zinc undecyl pyridyl benzimidazole complex preparation crystal structure; luminescence manganese zinc undecyl pyridyl benzimidazole complex; thermal property zinc undecyl pyridyl benzimidazole complex.Quality Control of 1-Bromoundecane.

A new tridentate benzimidazole ligand (L-C11) containing undecyl chains and its Mn(II) and Zn(II) complexes were synthesized and characterized by spectroscopic and anal. methods. Mol. structures of complexes [Mn(L-C11)Cl2] and [Zn(L-C11)Cl2] were evaluated by x-ray diffraction studies. The x-ray data showed metal ions in both complexes are five-coordinate with distorted square pyramidal geometry around the metal centers. The undecyl chains in the structure of the complexes are aligned in an interdigitated manner (head to tail) forming a non-polar domain. The aggregation properties of the ligand and its complexes were studied by UV-visible absorption and emission spectroscopies in DMF-water mixtures The emission spectral data revealed that the compounds showed aggregation induced quenching (AIQ) in DMF-water solutions Moreover, thermal properties of the compounds were studied by TG, DTG and DSC anal.

The article 《Mn(II) and Zn(II) complexes of a benzimidazole ligand having undecyl chains: Crystal structures, photophysical and thermal properties》 also mentions many details about this compound(693-67-4)Quality Control of 1-Bromoundecane, you can pay attention to it, because details determine success or failure

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 Effect of n-alkyl substitution on Cu(II)-selective chemosensing of rhodamine B derivatives, the main research direction is alkyl substitution copper fluorescent sensor rhodamine B derivative.Recommanded Product: 693-67-4.

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.

The article 《Effect of n-alkyl substitution on Cu(II)-selective chemosensing of rhodamine B derivatives》 also mentions many details about this compound(693-67-4)Recommanded Product: 693-67-4, you can pay attention to it or contacet with the author([email protected]) to get more information.

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

Name: 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 Effects of Broussonetia papyrifera-fermented feed on the growth performfermentedance and muscle quality of Hu sheep. Author is Su, Yingyu; Chen, Guoshun; Cai, Yu; Gao, Bolan; Zhi, Xijun; Chang, Fengjiang.

This study aims to determine the effect of adding different proportions of Broussonetia papyrifera (BP)-fermented feed on Hu sheep. A total of 40 male Hu sheep (weighting 20.6 ± 2.20 kg) were collected and then divided into group I, II, III, and IV, with 0%, 5%, 10%, and 15% of BP-fermented feed to based diet, resp. After the trial period of 10 and 50 d, the sheep were slaughtered by conventional methods for the chem. analyses. It showed that adding 10% fermented feed could significantly increase the growth performance of the Hu sheep. Adding the fermented feed can improve the protein level, main flavor amino acid content, and fatty acid in the muscle. Based on the headspace solid-phase microextraction and gas chromatog. – mass spectrometry methods, a total of 125, 120, 119, and 117 kinds of volatile compounds were identified in group I, II, III, and IV, among which the relative content of the acid compound, ester compound, ketone compound, and aldehydes in group II, III, and IV were higher than that in control group, resp. Addition of BP-fermented feed could significantly improve growth performance and meat quality of Hu sheep.

The article 《Effects of Broussonetia papyrifera-fermented feed on the growth performfermentedance and muscle quality of Hu sheep》 also mentions many details about this compound(693-67-4)Name: 1-Bromoundecane, you can pay attention to it, because details determine success or failure

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

The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《Cold Crystallization and Polymorphism Triggered by the Mobility of the Phenyl Group in Alkyl Azo Dye Molecules》. Authors are Honda, Akinori; Kakihara, Shunta; Kawai, Masato; Takahashi, Tomomi; Miyamura, Kazuo.The article about the compound:1-Bromoundecanecas:693-67-4,SMILESS:CCCCCCCCCCCBr).Computed Properties of C11H23Br. Through the article, more information about this compound (cas:693-67-4) is conveyed.

The thermal behavior, including the cold crystallization, of alkyl-derivatized Sudan III (1-[4-(phenylazo)phenylazo]-2-naphthol), SD3-OCn, was investigated. Its structural flexibility due to the two azo groups caused the formation of plural crystal structures, which further resulted in complex cold crystallization A metastable nonflat structure and a thermodynamically stable flat structure resulted in the two sets of crystallization and melting behavior during the heating process. Further, the change in the alkyl chain length caused variations in the crystallization rate and crystallinity, thus systematically changing the cold crystallization behavior. It was proven that the high mobility of the Ph group triggered supercooling and cold crystallization and that the alkyl chain correspondingly controlled the thermal behavior.

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

SDS of cas: 693-67-4. The fused heterocycle is formed by combining a benzene ring with a single heterocycle, or two or more single heterocycles. Compound: 1-Bromoundecane, is researched, Molecular C11H23Br, CAS is 693-67-4, about Mn(II) and Zn(II) complexes of a benzimidazole ligand having undecyl chains: Crystal structures, photophysical and thermal properties. Author is Kirpik, Hilal; Kose, Muhammet.

A new tridentate benzimidazole ligand (L-C11) containing undecyl chains and its Mn(II) and Zn(II) complexes were synthesized and characterized by spectroscopic and anal. methods. Mol. structures of complexes [Mn(L-C11)Cl2] and [Zn(L-C11)Cl2] were evaluated by x-ray diffraction studies. The x-ray data showed metal ions in both complexes are five-coordinate with distorted square pyramidal geometry around the metal centers. The undecyl chains in the structure of the complexes are aligned in an interdigitated manner (head to tail) forming a non-polar domain. The aggregation properties of the ligand and its complexes were studied by UV-visible absorption and emission spectroscopies in DMF-water mixtures The emission spectral data revealed that the compounds showed aggregation induced quenching (AIQ) in DMF-water solutions Moreover, thermal properties of the compounds were studied by TG, DTG and DSC anal.

After consulting a lot of data, we found that this compound(693-67-4)SDS of cas: 693-67-4 can be used in many types of reactions. And in most cases, this compound has more advantages.

Reference:
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 Dictating Nanoparticle Assembly via Systems-Level Control of Molecular Multivalency. Author is Santos, Peter J.; Cao, Zhen; Zhang, Jianyuan; Alexander-Katz, Alfredo; Macfarlane, Robert J..

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