Category: 693-67-4

Related Products of 693-67-4. 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 Single-step synthesis and in vitro anti-mycobacterial activity of novel nitrofurantoin analogues. Author is Zuma, Nonkululeko H.; Smit, Frans J.; Seldon, Ronnett; Aucamp, Janine; Jordaan, Audrey; Warner, Digby F.; N’Da, David D..

To improve TB efficacy of nitrofurantoin (NFT), a series of NFT analogs I [R = Me, Et, Bn, etc.] was synthesized and evaluated in vitro for anti-mycobacterial activity against the laboratory strain, Mtb H37Rv and for potential cytotoxicity using human embryonic kidney (HEK-293) and Chinese hamster ovarian (CHO) cells. The NFT analogs showed good safety profiles, enhanced anti-mycobacterial potency, improved lipophilicity, as well as reduced protein binding affinity. Analog I [R = n-Bu] which contains an eight carbon aliphatic chain was the most active, equipotent to isoniazid (INH), a major front-line agent, with MIC90 = 0.5μM, 30-fold more potency than the parent drug, nitrofurantoin (MIC90 = 15μM), and 100-fold more selective towards mycobacteria. Therefore, compound I [R = n-Bu] was identified as a validated hit for further investigation in the urgent search for new, safe and affordable TB drugs.

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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 Targeted Delivery of mRNA with One-Component Ionizable Amphiphilic Janus Dendrimers, published in 2021-11-03, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, Reference of 1-Bromoundecane.

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

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, Journal of Materials Chemistry A: Materials for Energy and Sustainability called Incorporation of alkylthio side chains on benzothiadiazole-based non-fullerene acceptors enables high-performance organic solar cells with over 16% efficiency, Author is Cheung, Andy Man Hong; Yu, Han; Luo, Siwei; Wang, Zhen; Qi, Zhenyu; Zhou, Wentao; Arunagiri, Lingeswaran; Chang, Yuan; Yao, Huatong; Ade, Harald; Yan, He, which mentions a compound: 693-67-4, SMILESS is CCCCCCCCCCCBr, Molecular C11H23Br, Synthetic Route of C11H23Br.

Y6-type non-fullerene acceptors (NFAs) with an acceptor-donor-acceptor′-donor-acceptor (A-D-A′-D-A) structure have been very popular in the field of organic solar cells (OSCs) due to their excellent performances. In this study, two novel NFAs, BTPS-4F and BTPS-4Cl were designed by incorporating undecylthio side chains into a thienothiophene moiety and connecting it to two different halogenated 2-(3-oxo-2,3-dihydroinden-1-ylidene)malononitrile end groups (2F-IC and 2Cl-IC) resp. When blended with a donor polymer, PM6, BTPS-4F-based devices achieved a high power conversion efficiency (PCE) of up to 16.2% with an open-circuit voltage (VOC) of 0.82 V, a short-circuit c.d. (JSC) of 25.2 mA cm-2 and a fill factor (FF) of 0.78, while BTPS-4Cl-based devices achieved an inferior PCE of 13.5%. This is the first time alkylthio chains are employed on Y6-like NFAs to achieve high-performance OSCs. Subsequent characterization showed that the upshifted energy level of BTPS-4F and the better intermol. packing in PM6:BTPS-4F blends are the major reasons for the enhanced performance of BTPS-4F-based devices over BTPS-4Cl-based ones. This work provides high-performance non-fullerene acceptors for OSCs and demonstrates a promising mol. design strategy that can effectively regulate their energy levels and morphol.

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

Safety of 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 Discovery, characterization and functional improvement of kumamonamide as a novel plant growth inhibitor that disturbs plant microtubules. Author is Ishida, Takashi; Yoshimura, Haruna; Takekawa, Masatsugu; Higaki, Takumi; Ideue, Takashi; Hatano, Masaki; Igarashi, Masayuki; Tani, Tokio; Sawa, Shinichiro; Ishikawa, Hayato.

In the present study, authors discovered a novel N-alkoxypyrrole compound, kumamonamide from Streptomyces werraensis MK493-CF1 and established a total synthesis procedure. Resulted in the bioactivity assays, it was found that kumamonamic acid, a synthetic intermediate of kumamonamide, is a potential plant growth inhibitor. Further, various derivatives of kumamonamic acid are developed, including a kumamonamic acid nonyloxy derivative (KAND), which displayed high herbicidal activity without adverse effects on HeLa cell growth. Authors also detected that kumamonamic acid derivatives disturb plant microtubules; and addnl., that KAND affected actin filaments and induced cell death. These multifaceted effects differ from those of known microtubule inhibitors, suggesting a novel mode of action of kumamonamic acid, which represents an important lead for the development of new herbicides.

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

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, Biochimica et Biophysica Acta, Biomembranes called Membrane properties of amacrocyclic tetraether bisphosphatidylcholine lipid: Effect of a single membrane-spanning polymethylene cross-linkage between two head groups of ditetradecylphosphatidylcholine membrane, Author is Tsuchida, Naoyuki; Takagi, Toshiyuki; Takahashi, Hiroshi; Yoshihara, Toshitada; Tobita, Seiji; Sonoyama, Masashi, which mentions a compound: 693-67-4, SMILESS is CCCCCCCCCCCBr, Molecular C11H23Br, COA of Formula: C11H23Br.

The plasma membranes of archaea are abundant in macrocyclic tetraether lipids that contain a single or double long transmembrane hydrocarbon chains connecting the two glycerol backbones at both ends. In this study, a novel amacrocyclic bisphosphatidylcholine lipid bearing a single membrane-spanning octacosamethylene chain, 1,1′-O-octacosamethylene-2,2′-di-O-tetradecyl-bis-(sn-glycero)-3,3′-diphosphocholine (AC-(di-O-C14PC)2), was synthesized to elucidate effects of the interlayer cross-linkage on membrane properties based on comparison with its corresponding diether phosphatidylcholine, 1,2-di-O-tetradecyl-sn-glycero-3-phosphocholine (DTPC), that forms bilayer membrane. Several physicochem. techniques demonstrated that while AC-(di-O-C14PC)2 monolayer, which adopts a particularly high-ordered structure in the gel phase, shows remarkably high thermotropic transition temperature compared to DTPC bilayer, the fluidity of both phospholipids above the transition temperature is comparable. Nonetheless, the fluorescent dye leakage from inside the AC-(di-O-C14PC)2 vesicles in the fluid phase is highly suppressed. The origin of the membrane properties characteristic of AC-(di-O-C14PC)2 monolayer is discussed in terms of the single long transmembrane hydrophobic linkage and the diffusional motion of the lipid mols.

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

In organic chemistry, atoms other than carbon and hydrogen are generally referred to as heteroatoms. The most common heteroatoms are nitrogen, oxygen and sulfur. Now I present to you an article called Iron(II) and Copper(I) Control the Total Regioselectivity in the Hydrobromination of Alkenes, published in 2021-08-06, which mentions a compound: 693-67-4, mainly applied to alkyl bromide preparation regioselective; alkene hydrobromination, Product Details of 693-67-4.

A new method that allowed the complete control of the regioselectivity of the hydrobromination reaction of alkenes was described. Herein, a radical procedure with TMSBr and oxygen as common reagents, where the formation of the anti-Markovnikov product occurs in the presence of ppm amounts of the Cu(I) species and the formation of the Markovnikov product occurred in the presence of 30 mol % iron(II) bromide was reported. D. functional theory calculations combined with Fukui’s radical susceptibilities support the obtained results.

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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 Effects of Broussonetia papyrifera-fermented feed on the growth performfermentedance and muscle quality of Hu sheep, published in 2020-12-31, which mentions a compound: 693-67-4, Name is 1-Bromoundecane, Molecular C11H23Br, Application of 693-67-4.

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.

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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: 693-67-4, is researched, Molecular C11H23Br, about Chain-growth condensation polymerization of propargyl electrophiles enabled by copper catalysis, the main research direction is chain growth condensation polymerization propargyl copper catalysis.Synthetic Route of C11H23Br.

In the pursuit of creating macromols. with controlled mol. weight, sequence, and end groups, condensation polymerization remains an underexploited synthetic tool because of its intrinsic step-growth nature. Introducing chain-growth pathways into condensation polymerization calls for highly efficient chemistries that effect the challenging differentiation between functional groups of the same type present in monomers and polymers. Here, we address this challenge by a catalyst bifurcation strategy that enables a copper-catalyzed chain-growth condensation polymerization Using a copper(I) arylacetylide as an initiator/precatalyst along with a phosphine ligand, polydiynes of controllable mol. weights and end groups are synthesized from readily available propargyl carbonates, including a block copolymer. This method provides a new chain-growth access to functional acetylenic polymers, a class of useful materials that have been obtained essentially by step-growth methods to date. This work demonstrates the power of dual-role transition metal catalysis in accomplishing unusual selectivity in organic synthesis.

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

SDS of cas: 693-67-4. 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 Chalcogen bonding and liquid crystallinity: Understanding the anomalous behaviour of the 4′-(alkylthio)[1,1′-biphenyl]-4-carbonitriles (nSCB). Author is Cruickshank, Ewan; Strachan, Grant J.; Storey, John MD; Imrie, Corrie T..

The synthesis and characterization of the first eleven members of the 4′-(alkylthio)[1,1′-biphenyl]-4-carbonitriles, I [n = 1, 2, 3, etc.] was reported. All eleven members I showed monotropic liquid crystal behavior. The first six members were exclusively nematogenic, the seventh member showed nematic and smectic A phases and the higher homologues only smectic A behavior. A comparison of their transitional behavior with that of the corresponding alkyl and alkyloxy-cyanobiphenyls revealed a new pattern of behavior. Specifically, the nematic-isotropic transition temperatures showed a large decrease on passing from the methylthio to ethylthio homologues. This unexpected behavior was interpreted in terms of chalcogen bonding.

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Reference:
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: 693-67-4, is researched, Molecular C11H23Br, about Anisotropic and magnetic properties in non-metal and non-radical organic aggregates of tri-substituted phenyl derivatives, the main research direction is alkoxy Ph imine biphenyl ester preparation anisotropic magnetic property.Reference of 1-Bromoundecane.

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