Category: 111-83-1

Kong, Shuai published the artcileFluorescently visualizing the penetration of anionic surfactants across cytoplasmic membrane and the subsequent damage on human cells, Product Details of C8H17Br, the publication is Environmental Science and Pollution Research (2022), 29(14), 20593-20602, database is CAplus and MEDLINE.

The extensive application of chem. synthesized anionic surfactants would cause serious pollution of water and increase health risk to humans. However, the adverse impact of anionic surfactant on human cells has never been systematically demonstrated. In this paper, a series of fluorescent anionic surfactants containing a varying length of alkyl chain from C8 to C18 and a fixed hydrophilic head of 8-hydroxypyrene-1,3,6-trisulfonic acid trisodium salt (HPTS) were synthesized and utilized for visualizing the interaction between surfactants and cells. The obtained mols. exhibited blue fluorescence presenting a decreasing fluorescent intensity with the increasing length of alkyl chain from C8 to C18 while showed the same sequence of HPTS-C16>HPTS-C18>HPTS-C12>HPTS-C8 on either surface activity, cellular adsorption, or cytotoxicity. In opposite, HPTS which contained no hydrophobic chain and thus exhibited no surface activity showed no cellular adsorption and cytotoxicity. It seems that the ligand of the appropriate chain length (C16) onto the hydrophilic HPTS mols. could cause the largest surface activity, the most distinguished cellular adsorption as well as the most adverse cytotoxicity. As reflected by the dynamic fluorescent visualization, the surfactant mols. of HPTS-C16 initially bound with cell membrane and entered into the intracellular lumen before finally localized at the (ER) and damaged it into a swollen structure. It is most likely that the structure of hydrophobic chain could determine the surface activities of surfactants and hence affect their cellular uptake and cytotoxicity. This study could help us to understand the adverse impact of anionic surfactant on human cells and its correlation with the surface activities or, in another word, the hydrophobic chain length.

Environmental Science and Pollution Research published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Product Details of C8H17Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Sharma, Vinay S. published the artcileUpper/lower rim functionalized calixarene based AIE-active liquid crystals with self-assembly behavior: Photophysical and electrochemical studies, Formula: C8H17Br, the publication is Journal of Molecular Liquids (2022), 118047, database is CAplus.

Four novel bowl-shaped aggregation-induced emission (AIE)-active liquid crystalline compounds based on calix[4]arene having upper/lower unit functionalized by amide group and carrying six peripheral alkoxy chains, I (R = n-Bu, n-hexyl, n-octyl, n-decyl), were prepared Their mesogenic, electrochem., and photoactive properties were extensively examined X-ray diffraction (XRD) studies showed columnar type self-assembly behavior of I possessing alkyl chains of varying lengths with D-A-π-D systems. The thermal study of all the materials was examined by DSC and TGA anal. Their electrochem. studies were identified by cyclic voltammetry. The synthesized materials showed light blue emission in solution as well as thin-film under long UV light. The supramol. amide-thiadiazole linked compounds displayed enantiotropic columnar mesophase with good thermal stability. This new class of upper functionalized three-dimensional supramol. materials exhibited AIE and stabilized the columnar hexagonal phase with a higher temperature range.

Journal of Molecular Liquids published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C13H9FO2, Formula: C8H17Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Heckershoff, Robin published the artcileEfficient Synthesis of Dipyrrolobenzenes and Dipyrrolopyrazines via Bidirectional Gold Catalysis: a Combined Synthetic and Photophysical Study, Category: bromides-buliding-blocks, the publication is Journal of the American Chemical Society (2022), 144(18), 8306-8316, database is CAplus and MEDLINE.

A straightforward synthesis to access meta/para-dipyrrolobenzenes I [R = R¹ = Ph, 2-naphthyl, 4-MeOC₆H₄, etc.; R³ = R⁴ = H, n-octyl], II [R⁵ = R⁶ = H, Ph, 2-H₂NC₆H₄, 2-BrC₆H₄] and para-dipyrrolopyrazines III [R⁷ = R⁸ = TIPS, Ph] in high yields using a bidirectional gold-catalyzed cyclization strategy. The versatility of reaction protocol was showcased by preparing dipyrroloarenes with different substituents, various functional groups, and in a multitude of substitution patterns. Furthermore, the dipyrroloarenes could be post-modified by N-alkylation to improve the solubility or bromination to yield precursors for further derivatization via cross-coupling. Investigation of the photophys. properties of the-mostly unprecedented-dipyrroloarenes I, II, III and dialkyne precursors were identified strong blue emitters such as the di-Ph meta-dipyrrolobenzene with a quantum yield of 98%. Moreover, changes in the solvent polarity or interactions with Lewis acids such as borane could be used to fine-tune the photophys. properties of the fluorophores.

Journal of the American Chemical Society published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Category: bromides-buliding-blocks.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Thangarasu, Arun K. published the artcileDesign, synthesis, and preliminary immunopotentiating activity of new analogues of nojirimycin, Computed Properties of 111-83-1, the publication is Carbohydrate Research (2022), 108479, database is CAplus and MEDLINE.

Three new classes of nojirimycin analogs viz. N-alkyl with C₁-substituent (4-phenylbutyl), N-substituted 1-deoxynojirimycin and its congener Δ-lactam, and a 4-phenylbutyl-β-C-glycoside were designed and synthesized for immunol. studies. The resulting diverse compound library exhibited proliferation of B Cells and T cells induced by LPS and Con A, resp. The majority of the analogs augmented the secretion of IL-12 in dendritic cells and TNF-α secretion in murine peritoneal macrophages compared to LPS (10μg/mL). A deoxynojirimycin-triazole conjugate of phytosphingosine analog was superior in the responses mentioned above and exhibited nitric oxide response equal to LPS. In comparison to findings on its congeners with immunosuppressive action, early immunol. tests show that the novel nojirimycin analogs have immunopotentiating effect. Nojirimycin analogs offer tremendous potential in tuning the immunomodulatory activity of iminosugars by subtle to substantial structural variations.

Carbohydrate Research published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C20H12N2O2, Computed Properties of 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Nagrimanov, Ruslan N. published the artcileAdditive scheme of solvation enthalpy for halogenated aliphatic hydrocarbons at 298.15 K., Product Details of C8H17Br, the publication is Thermochimica Acta (2022), 179155, database is CAplus.

In this work, an additive scheme for the estimation of solvation enthalpy of halogenated aliphatic hydrocarbons in n-heptane was developed. The proposed structural fragments for halogen group contributions are dependent on the nature of neighboring atoms. A linear relationship between solvation and vaporization enthalpy at 298.15 K for mono- and di-α,ω-halogen aliphatic compounds was found. These relationships can be used for the quick estimation of standard vaporization and solution enthalpies at 298.15 K. Proposed approaches for estimation of solvation, solution and vaporization enthalpies at 298.15 K were verified by conventional methods. In most cases, absolute deviations between exptl. and estimated values for halogenated aliphatic hydrocarbons do not exceed 1-2 kJ mol^-1.

Thermochimica Acta published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Product Details of C8H17Br.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Grant, Thomas M. published the artcileTowards eco-friendly marine antifouling biocides – Nature inspired tetrasubstituted 2,5-diketopiperazines, SDS of cas: 111-83-1, the publication is Science of the Total Environment (2022), 152487, database is CAplus and MEDLINE.

Marine biofouling plagues all maritime industries at vast economic and environmental cost. Previous and most current methods to control biofouling have employed highly persistent toxins and heavy metals, including tin, copper, and zinc. These toxic methods are resulting in unacceptable environmental harm and are coming under immense regulatory pressure. Eco-friendly alternatives are urgently required to effectively mitigate the neg. consequence of biofouling without causing collateral harm. Amphiphilic micropeptides have recently been shown to exhibit excellent broad-spectrum antifouling activity, with a non-toxic mode of action and innate biodegradability. The present work focused on incorporating the pharmacophore derived from amphiphilic micropeptides into a 2,5-diketopiperazine (DKP) scaffold. This privileged structure is present in a vast number of natural products, including marine natural product antifoulants, and provides advantages of synthetic accessibility and adaptability. A novel route to sym. tetrasubstituted DKPs was developed and a library of amphiphilic 2,5-DKPs were subsequently synthesized. These biodegradable compounds were demonstrated to be potent marine antifoulants displaying broad-spectrum activity in the low micromolar range against a range of common marine fouling organisms. The outcome of planned coating and field trials will dictate the future development of the lead compounds

Science of the Total Environment published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, SDS of cas: 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Verma, Suryadev K. published the artcileManganese-Catalyzed C(sp²)-H Alkylation of Indolines and Arenes with Unactivated Alkyl Bromides, Recommanded Product: 1-Bromooctane, the publication is Chemistry – An Asian Journal (2022), 17(9), e202200103, database is CAplus and MEDLINE.

Selective C(sp²)-H bond alkylation of indoline like 2,3-dihydro-1-(2-pyridinyl)-1H-indole, carbazole like 9-(2-pyridinyl)-9H-carbazole and (2-pyridinyl)arenes I (R¹ = H, 4-Me, 4-OMe, 3-F₃C) with unactivated alkyl bromides R²(CH₂)₂Br (R² = Et, Pr, 4-(9H-carbazol-9-yl)butyl, etc.) is achieved using MnBr₂ catalyst in the absence of an external ligand. The alkylation uses a simple LiHMDS base and avoids the necessity of Grignard reagent, unlike other Mn-catalyzed C-H functionalization. This reaction proceeded either through a five- or less-favored six-membered metallacycle, and tolerated diverse functionalities, including alkenyl, alkynyl, silyl, aryl ether, pyrrolyl, indolyl, carbazolyl and alkyl bearing fatty alc. and polycyclic-steroid moieties. Alkylation follows a single electron transfer (SET) pathway involving 1e oxidative addition of alkyl bromide and rate-limiting C-H metalation.

Chemistry – An Asian Journal published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C4H6N2, Recommanded Product: 1-Bromooctane.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Basak, Shubhajit published the artcilePalladium-Catalyzed 2-fold C-H Activation/C-C Coupling for C4-Arylation of Indoles Using Weak Chelation, SDS of cas: 111-83-1, the publication is Organic Letters (2022), 24(2), 554-558, database is CAplus and MEDLINE.

Palladium-catalyzed weak chelation-assisted regioselective C4-arylation of indoles was accomplished using a readily available arene at moderate temperature The C4-arylation, weak chelating benzoyl (Bz) directing group, cross-dehydrogenative coupling (CDC), broad substrate scope, and late-stage diversifications were the important practical features.

Organic Letters published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, SDS of cas: 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Forero-Doria, Oscar published the artcileNovel N-benzoylimidazolium ionic liquids derived from benzoic and hydroxybenzoic acids as therapeutic alternative against Biofilm-forming bacteria in skin and soft-tissue infections, Computed Properties of 111-83-1, the publication is Bioorganic Chemistry (2022), 105914, database is CAplus and MEDLINE.

The skin and soft tissue infections (SSTIs) -producing pathogens have acquired resistance to a wide range of antimicrobials, thus it is highly relevant to have new treatment alternatives. In this study, we report the synthesis, characterization, and antibacterial activity of three novel series of ionic liquids (ILs) derived from benzoic and hydroxybenzoic acids, with different lengths of the alkyl chain. The min. inhibitory concentration (MIC) were tested in Gram-pos.: Pseudomonas aeruginosa, Staphylococcus aureus, Staphylococcus epidermidis, and Streptococcus pyogenes, and Gram-neg.: Acinetobacter baumannii and Escherichia coli, showing a MIC range of 0.01562-2.0 mM, with the activity varying according to the aromatic ring functionalization and the length of the alkyl chains. Regarding the antibiofilm activity, different efficacy was observed among the different ILs, some of them presenting antibiofilm activities close to 80% as in the case of those derived from syringic acid with an alkyl chain of six carbon atoms against Pseudomonas aeruginosa. Furthermore, the cell viability in HaCaT cells was determined, showing a half maximal effective concentration (EC₅₀) values higher than the MIC values. The antimicrobial and antibiofilm results, along with not producing cellular toxicity at the MIC values shows that these ILs could be a promising alternative against SSTIs.

Bioorganic Chemistry published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C8H17Br, Computed Properties of 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary

Zhao, Zhen-Zhen published the artcileNickel-Catalyzed Reductive C(sp²)-Si Coupling of Chlorohydrosilanes via Si-Cl Cleavage, Application In Synthesis of 111-83-1, the publication is Angewandte Chemie, International Edition (2022), 61(21), e202200215, database is CAplus and MEDLINE.

Authors report here a new method for the synthesis of organohydrosilanes from phenols and ketones. This method is established through reductive C-Si coupling of chlorohydrosilanes via unconventional Si-Cl cleavage. The reaction offers access to aryl- and alkenylhydrosilanes with a scope that is complementary to those of the established methods. Electron-rich, electron-poor, and ortho-/meta-/para-substituted (hetero)aryl electrophiles, as well as cyclic and acyclic alkenyl electrophiles, were coupled successfully. Functionalities, including Grignard-sensitive groups (e.g., primary amine, amide, phenol, ketone, ester, and free indole), acid-sensitive groups (e.g., ketal and THP protection), alkyl-Cl, pyridine, furan, thiophene, Ar-Bpin, and Ar-SiMe₃, were tolerated. Gram-scale(coating) reaction, incorporation of -Si(H)R₂ into complex biol. active mols., and derivatization of formed organohydrosilanes are demonstrated.

Angewandte Chemie, International Edition published new progress about 111-83-1. 111-83-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromooctane, and the molecular formula is C5H13Cl2N, Application In Synthesis of 111-83-1.

Referemce:
https://en.wikipedia.org/wiki/Bromide,
bromide – Wiktionary