Category: bromides-buliding-blocks

Bielecki, Mia published the artcileA fluorescent glucose sensor binding covalently to all five hydroxy groups of α-D-glucofuranose. A reinvestigation, Synthetic Route of 166821-88-1, the publication is Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry (1999), 449-456, database is CAplus.

The structures of the complexes between a fluorescent bisboronic acid 7 and glucose have been determined Shinkai et al.¹ previously studied the complex between 7 and glucose and they deduced a 1,2:4,6-α-D-glucopyranose bisboronate structure. We have shown that this structure is only valid as an initial complex formed under completely nonaqueous conditions. In the presence of water the pyranose complex rearranges rapidly into an α-D-glucofuranose-1,2:3,5,6-bisboronate in which all five free hydroxy groups of glucose are covalently bound by the sensor mol. A favorable B-N interaction around the 1,2-binding site and the effect of an o-ammoniomethyl group on the pK_a value of the second boronic acid group allow for the observed binding at neutral pH. The structure evaluations are based on ¹H and ¹³C NMR data as well as information obtained from ¹J_CC coupling constants The fluorescence spectra of both complexes were measured and discussed. MALDI TOF-MS experiments showed competitive formation of 1:2 (boronic acid:glucose) complexes under conditions of physiol. glucose levels.

Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry published new progress about 166821-88-1. 166821-88-1 belongs to bromides-buliding-blocks, auxiliary class Bromide,Boronic acid and ester,Benzyl bromide,Benzene,Boronic Acids,Boronic acid and ester, name is 2-(2-(Bromomethyl)phenyl)-5,5-dimethyl-1,3,2-dioxaborinane, and the molecular formula is C12H16BBrO2, Synthetic Route of 166821-88-1.

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

El-Tabei, A. S. published the artcileNewly synthesized quaternary ammonium bis-cationic surfactant utilized for mitigation of carbon steel acidic corrosion; theoretical and experimental investigations, Application In Synthesis of 143-15-7, the publication is Journal of Molecular Structure (2022), 133063, database is CAplus.

New quaternary ammonium bis-cationic surfactant namely; 4,4′-(((1Z,5Z)-pentane-1,5-diylidene)bis(azaneylylidene))bis(1-dodecyl-1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-1-ium bromide) (QABCS) was synthesized and characterized via various spectral techniques. Surface tension measurements were performed for the investigation of surface-active parameters. QABCS’s effectiveness as a corrosion inhibitor for carbon steel (CS) in 1.0 M HCl was evaluated using a variety of techniques. Inhibition potency progresses via rising QABCS dose while decreases with the temperature increasing. QABCS boosts the impedance of CS corrosion via 94.67% at 1 × 10^-3 M. In addition, QABCS adsorption is consistent with Langmuir dsorption isotherm model. QABCS regards a mixed-type inhibitor. The explanation of d.-functional theory (DFT) and Monte Carlo (MC) findings shows that the QABCS compound has a high adsorption potential on CS surface due to active centers in the QABCS’ mol. structure. According to the scanning electron microscope (SEM) and at. force microscope (AFM) findings, QABCS creates a shielding layer over carbon steel substrate. Theor. discussions, as well as SEM and AFM findings, are compatible with laboratory corrosion assessment studies.

Journal of Molecular Structure published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, Application In Synthesis of 143-15-7.

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

Zerbe, Jerzy published the artcileA fast manual method for determination of anionic surfactants in water samples, Product Details of C20H18BrN3, the publication is Chemia Analityczna (Warsaw) (2000), 45(4), 595-599, database is CAplus.

Results of investigation on the determination of anionic surfactants (AS) in water samples by means of color reaction based on the reaction of AS with mixed indicator dimidium bromide-disulfine blue and spectrophotometric measurements of the absorbance at 525 nm are presented. In properly selected anal. conditions limits of AS detection in the procedure is 0.07 mg l^-1. This enables the use of the method in monitoring or quality control of the natural and drinking water.

Chemia Analityczna (Warsaw) published new progress about 518-67-2. 518-67-2 belongs to bromides-buliding-blocks, auxiliary class Other Aromatic Heterocyclic,Salt,Amine,Benzene, name is Dimidium bromide, and the molecular formula is C13H15NO6S, Product Details of C20H18BrN3.

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

Donzel, Maxime published the artcileBioinspired Photoredox Benzylation of Quinones, Product Details of C7H5Br2F, the publication is Journal of Organic Chemistry (2021), 86(15), 10055-10066, database is CAplus and MEDLINE.

3-Benzylmenadiones were obtained in good yield by using a blue-light-induced photoredox process in the presence of Fe(III), oxygen, and γ-terpinene acting as a hydrogen-atom transfer agent. This methodol. is compatible with a wide variety of diversely substituted 1,4-naphthoquinones as well as various cheap, readily available benzyl bromides with excellent functional group tolerance. The benzylation mechanism was investigated and supports a three-step radical cascade with the key involvement of the photogenerated superoxide anion radical.

Journal of Organic Chemistry published new progress about 76283-09-5. 76283-09-5 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Benzyl bromide,Benzene, name is 4-Bromo-1-(bromomethyl)-2-fluorobenzene, and the molecular formula is C7H5Br2F, Product Details of C7H5Br2F.

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

Szabo, Gyorgy published the artcileMultiparameter Optimization of Naphthyridine Derivatives as Selective α5-GABA_A Receptor Negative Allosteric Modulators, Name: 2-Bromoethyl Methyl Sulfone, the publication is Journal of Medicinal Chemistry (2022), 65(11), 7876-7895, database is CAplus and MEDLINE.

The discovery and characterization of novel naphthyridine derivatives with selective α5-GABA_AR neg. allosteric modulator (NAM) activity are disclosed. Utilizing a scaffold-hopping strategy, fused [6 + 6] bicyclic scaffolds were designed and synthesized. Among these, 1,6-naphthyridinones were identified as potent and selective α5-GABA_AR NAMs with metabolic stability, cardiac safety, and beneficial intellectual property (IP) issues. Relocation of the oxo acceptor function and subsequent modulation of the physicochem. properties resulted in novel 1,6-naphthyridines with improved profile, combining good potency, selectivity, ADME, and safety properties. Besides this, compound 20 (I), having the most balanced profile, provided in vivo proof of concept (POC) for the new scaffold in two animal models of cognitive impairment associated with schizophrenia (CIAS).

Journal of Medicinal Chemistry published new progress about 16523-02-7. 16523-02-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Sulfone,Aliphatic hydrocarbon chain, name is 2-Bromoethyl Methyl Sulfone, and the molecular formula is C8H11NO, Name: 2-Bromoethyl Methyl Sulfone.

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

Belthle, Thomke published the artcileNanostructuring the Interior of Stimuli-Responsive Microgels by N-Vinylimidazoles Quaternized with Hydrophobic Alkyl Chains, COA of Formula: C12H25Br, the publication is Macromolecules (Washington, DC, United States) (2022), 55(3), 844-861, database is CAplus.

The functionality of stimuli-responsive microgels can be tailor-made by manipulating their internal nanostructure induced by the chem. composition and morphol. of the polymer network. Microgels with phase-separated domains on a nanoscopic length scale were synthesized by copolymerization of N-vinylcaprolactam (VCL) and amphiphilic-to-hydrophobic 1-vinyl-3-alkylimidazolium (VIM⁺C_nH_2n+1) bromides (Br^–) of different alkyl chain lengths (n = 12, 14, 16) as comonomers. These quaternized imidazoles provide dual functionality for immobilization of payload by electrostatic and hydrophobic interactions. The morphologies and properties of synthesized poly(VCL-co-VIM⁺C_nH_2n+1Br^–) microgels with 10 mol % comonomer were investigated systematically by ¹H and ¹³C high-resolution NMR spectroscopy and relaxometry. Chem. side-selective information about the monomers’ volume-phase transition temperatures, width of transition, and change in transition entropy was reported and correlated to the alkyl chain length of the VIM⁺C_nH_2n+1Br^– comonomer. ¹³C NMR spectroscopy reveals the existence of trans and gauche conformers of alkyl chains, which depends on the alkyl chain length and temperature Morphologies and dynamic contrasts of alkyl chain domains and VCL moieties of poly(VCL-co-VIM⁺C_nH_2n+1Br^–) microgels were investigated by ¹H transverse magnetization relaxation (T₂-relaxation). Finally, the microgels were successfully applied in the uptake of the hydrophobic dye Nile red, proving their ability to solubilize hydrophobic substances. In addition, the poly(VCL-co-VIM⁺C_nH_2n+1Br^–) microgels were utilized in electrostatic interactions, as well as simultaneous addition of hydrophobic and neg. charged payload as a proof of concept for dual functionality. This investigation will allow for a better understanding of the internal nanophase structure of complex poly(N-vinylcaprolactam) (PVCL)-based microgels comprising pH-independent pos. charges, as well as hydrophobic compartments, which have potential application as dual-functional delivery systems.

Macromolecules (Washington, DC, United States) published new progress about 143-15-7. 143-15-7 belongs to bromides-buliding-blocks, auxiliary class Bromide,Aliphatic hydrocarbon chain, name is 1-Bromododecane, and the molecular formula is C12H25Br, COA of Formula: C12H25Br.

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

Alexiou, Polyxeni published the artcileA Diverse Series of Substituted Benzenesulfonamides as Aldose Reductase Inhibitors with Antioxidant Activity: Design, Synthesis, and in Vitro Activity, Synthetic Route of 76283-09-5, the publication is Journal of Medicinal Chemistry (2010), 53(21), 7756-7766, database is CAplus and MEDLINE.

Based on bioisosteric principles, 2,6-difluorophenol and tetrazole, methylsulfonylamide, and isoxazolidin-3-one phenylsulfonamide derivatives were synthesized and tested in vitro in protocols primarily related to the long-term diabetic complications. Most of the compounds were found as aldose reductase inhibitors (ARIs) at IC₅₀ < 100 μM, while the introduction of the 4-bromo-2-fluorobenzyl group in a phenylsulfonamidodifluorophenol structure resulted in I, presenting a submicromolar inhibitory profile. However, the derivatives of tetrazole, methylsulfonylamine, and the (R)-enantiomer of isoxazolidin-3-one did not exhibit appreciable aldose reductase inhibitors (ARI) activity. The selectivity of the active ARIs is also discussed. Furthermore, the synthesized compounds exhibit potent antioxidant potential (homogeneous and heterogeneous systems).

Journal of Medicinal Chemistry published new progress about 76283-09-5. 76283-09-5 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Benzyl bromide,Benzene, name is 4-Bromo-1-(bromomethyl)-2-fluorobenzene, and the molecular formula is C7H5Br2F, Synthetic Route of 76283-09-5.

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

Zeng, Xian-Liang published the artcileNucleophilic monofluoroalkylation with fluorinated phosphonium salt toward carbonyl and imine compounds, SDS of cas: 401-55-8, the publication is Journal of Fluorine Chemistry (2017), 17-23, database is CAplus.

A fluorinated substituent on the pos. phosphorus in phosphonium salt [Ph₃P⁺CF(Me)CO₂Et Br^–] was found to be able to act as a nucleophile to realize monofluoroalkylation of aldehydes, ketones and imines.

Journal of Fluorine Chemistry published new progress about 401-55-8. 401-55-8 belongs to bromides-buliding-blocks, auxiliary class Fluoride,Bromide,Aliphatic hydrocarbon chain,Ester, name is Ethylbromofluoroacetate, and the molecular formula is C15H21BO3, SDS of cas: 401-55-8.

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

Hammoud, Abdelhay published the artcileStereoselective synthesis of 1-acetoxy-7Z,11E-hexadecadiene or angoulure, the sex pheromone of the angoumois grain moth: Sitotrage cerealella Oliv, Formula: C7H13BrSi, the publication is Bulletin de la Societe Chimique de France (1978), 299-303, database is CAplus.

The title compound (I) was prepared by two methods: one involving a Wittig reaction and the other in which a Claisen-Johnson reaction was employed. Thus, (E)-BuCH:CH(CH₂)₃P⁺Ph₃ Br^– condensed with HCO(CH₂)₅CO₂Et to give (E,E)-BuCH:CHCH₂CH₂CH:CH(CH₂)₆CO₂Et, which was reduced (LiAlH₄) and O-acetylated to give I. The alkylation of (E)-HCCCH₂CH₂CH:CHBu by I(CH₂)₆OCH(OEt)Me yielded (E)-BuCH:CHCH₂CH₂CC(CH₂)₆OH, and O-acetylation and hydrogenation of the product gave I.

Bulletin de la Societe Chimique de France published new progress about 69361-41-7. 69361-41-7 belongs to bromides-buliding-blocks, auxiliary class PROTAC Linker,Aliphatic Linker, name is (4-Bromobut-1-yn-1-yl)trimethylsilane, and the molecular formula is C7H13BrSi, Formula: C7H13BrSi.

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

Teichmann, Marcus published the artcileBromination of 1,5-anhydrohex-1-enitols (glycals) using quaternary ammonium tribromides as bromine donors: synthesis of α-1,2-trans-2-bromo-2-deoxyglycopyranosyl bromides and fluorides, Application of Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, the publication is Synthesis (1993), 889-94, database is CAplus.

Addition of bromine to glycals using quaternary ammonium tribromides as bromine donors is realized with higher stereoselectivities (α-1,2-trans configurated products) compared to bromination with mol. bromine. The reaction is neither sensitive to the solvent nor to the nature of the protecting groups (acetyl, benzoyl, benzyl) of the glycals and very slightly affected by the orientation of the substituents of the different glycals. Some of the α-1,2-trans dibromo adducts have been isolated in 60-75% yields and transformed into the corresponding α-1,2-trans-2-bromo-2-deoxyglycopyranosyl fluorides.

Synthesis published new progress about 111865-47-5. 111865-47-5 belongs to bromides-buliding-blocks, auxiliary class Benzenes, name is Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide, and the molecular formula is C6H12N2O, Application of Mono(N,N,N-trimethyl-1-phenylmethanaminium) tribromide.

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