Category: bromides-buliding-blocks

Walker, James A. published the artcileNi-Catalyzed alkene carboacylation via amide C-N bond activation, Name: 2-Bromo-4-methoxybenzoic acid, the main research area is allylbenzamide carboacylation nickel; indanone preparation; nickel carboacylation catalyst.

A Ni-catalyzed formal carboacylation of o-allylbenzamides with arylboronic acid pinacol esters is reported. The reaction is triggered by oxidative addition of an activated amide C-N bond to a Ni(0) catalyst and proceeds via alkene insertion into a Ni(II)-acyl bond. The exo-selective carboacylation reaction generates 2-benzyl-2,3-dihydro-1H-inden-1-ones in moderate to high yields from a variety of arylboronic acid pinacol esters and substituted o-allylbenzamides. These results show that amides are practical substrates for alkene carboacylation via amide C-N bond activation, and this approach bypasses challenges associated with alkene carboacylation triggered by C-C bond activation.

Journal of the American Chemical Society published new progress about Arylboronic acids Role: RCT (Reactant), RACT (Reactant or Reagent) (esters). 74317-85-4 belongs to class bromides-buliding-blocks, name is 2-Bromo-4-methoxybenzoic acid, and the molecular formula is C8H7BrO3, Name: 2-Bromo-4-methoxybenzoic acid.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Pump, Eva published the artcileImpact of Electronic Modification of the Chelating Benzylidene Ligand in cis-Dichloro-Configured Second-Generation Olefin Metathesis Catalysts on Their Activity, Product Details of C8H7BrO3, the main research area is benzylidene ruthenium imidazolidene carbene chelating complex preparation catalyst polymerization; impact electronic modification chelating benzylidene ruthenium dichloro metathesis catalyst; configured olefin metathesis catalyst benzylidene ruthenium imidazolidene carbene complex; cis trans isomerization benzylidene ruthenium imidazolidene carbene dichloro complex; crystal mol structure benzylidene ruthenium imidazolidene carbene chelating complex.

A series of electronically modified second-generation cis-dichloro ruthenium ester chelating benzylidene complexes was prepared, characterized, and benchmarked in a typical ring-opening metathesis polymerization (ROMP) experiment The electronic tuning of the parent chelating benzylidene ligand (2-Et ester benzylidene) was achieved by substitution at the 4- and 5-positions with electron-withdrawing nitro or electron-donating methoxy groups. The effect of the electronic tuning on the cis-trans isomerization process was studied exptl. and theor. D. functional theory calculations clearly revealed the influence of electronic modification on the relative stability between the cis and trans isomers, which is decisive for the activity of the studied compounds as initiators in ROMP.

Organometallics published new progress about Cis-trans isomerization. 74317-85-4 belongs to class bromides-buliding-blocks, name is 2-Bromo-4-methoxybenzoic acid, and the molecular formula is C8H7BrO3, Product Details of C8H7BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Liang, Ren-Xiao published the artcileA Pd-catalyzed domino Larock annulation/dearomative Heck reaction, Safety of 2-Bromo-4-methoxybenzoic acid, the main research area is benzoyl iodoaniline alkyne palladium tandem Larock heteroannulation dearomative Heck; phenyldihydroisoindoloindolone preparation.

A palladium-catalyzed domino Larock annulation/dearomative Heck reaction was developed, which delivered a range of tetracyclic indoline derivatives in moderate to excellent yields through a Larock annulation of N-bromobenzoyl o-iodoanilines with alkynes and a subsequent intramol. dearomative Heck reaction. This protocol provided a straightforward route to structurally diverse indolines from readily available starting materials by forming two new rings and three chem. bonds in a single step.

Chemical Communications (Cambridge, United Kingdom) published new progress about Aryl halides Role: RCT (Reactant), SPN (Synthetic Preparation), RACT (Reactant or Reagent), PREP (Preparation). 74317-85-4 belongs to class bromides-buliding-blocks, name is 2-Bromo-4-methoxybenzoic acid, and the molecular formula is C8H7BrO3, Safety of 2-Bromo-4-methoxybenzoic acid.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Rajca, Andrzej published the artcileSynthesis of Sterically Hindered 1,3-Connected Polyarylmethanes, Name: Methyl 5-bromo-2,4-dimethylbenzoate, the main research area is sterically hindered polyarylmethane; polyether aryl sterically hindered; ether poly sterically hindered; propeller mol sterically hindered.

Sterically hindered 1,3-connected polyarylmethanes, e.g. I, were prepared by repetitive additions of aryllithiums to carbonyl compounds Synthetic routes with various degree of convergence were used. Variable temperature NMR spectroscopy, in conjunction with other techniques, was used to characterize the products.

Journal of Organic Chemistry published new progress about Steric hindrance. 152849-72-4 belongs to class bromides-buliding-blocks, name is Methyl 5-bromo-2,4-dimethylbenzoate, and the molecular formula is C10H11BrO2, Name: Methyl 5-bromo-2,4-dimethylbenzoate.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Briand, Loiec published the artcileEvidence of an Odorant-Binding Protein in the Human Olfactory Mucus: Location, Structural Characterization, and Odorant-Binding Properties, Computed Properties of 56523-59-2, the main research area is odorant binding protein OBP olfactory epithelium cleft mucus; hOBP isoform IIa alpha aldehyde fatty acid.

Odorant-binding proteins (OBPs) are small abundant extracellular proteins belonging to the lipocalin superfamily. They are thought to participate in perireceptor events of odor detection by carrying, deactivating, and/or selecting odorant mols. Putative human OBP genes (hOBP) have recently been described [Lacazette et al. (2000) Hum. Mol. Genet. 9, 289-301], but the presence of the corresponding proteins remained to be established in the human olfactory mucus. This paper reports the first evidence of such expression in the mucus covering the olfactory cleft, where the sensory olfactory epithelium is located. On the contrary, hOBPs were not observed in the nasal mucus covering the septum and the lower turbinate. To demonstrate the odorant binding activity of these proteins, a corresponding recombinant protein variant, hOBPIIaα, was secreted by the yeast Pichia pastoris and thoroughly characterized. It appears as a monomer with one disulfide bond located between C59 and C151, a conservative feature of all other vertebrate OBPs. By measuring the displacement of several fluorescent probes, we show that hOBPIIaα is able to bind numerous odorants of diverse chem. structures, with a higher affinity for aldehydes and large fatty acids. A computed 3D model of hOBPIIaα is proposed and reveals that two lysyl residues of the binding pocket may account for the increased affinity for aldehydes. The relatively limited specificity of hOBPIIaα suggests that other human OBPs are expected to take into account the large diversity of odorant mols.

Biochemistry published new progress about Disulfide group (C59-C151). 56523-59-2 belongs to class bromides-buliding-blocks, name is 15-Bromopentadecanoic acid, and the molecular formula is C15H29BrO2, Computed Properties of 56523-59-2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Su, Shun published the artcileBiphenyl acid derivatives as APJ receptor agonists, Name: Methyl 2-bromo-3-fluorobenzoate, the main research area is heart failure cardioprotective APJ apelin receptor agonist biphenyl acid.

The APJ receptor and its endogenous peptidic ligand apelin have been implicated as important modulators of cardiovascular function, and APJ receptor agonists may be beneficial in the treatment of heart failure. In this article, we describe the discovery of a series of biphenyl acid derivatives as potent APJ receptor agonists. Following the identification of initial high-throughput screen lead 2(I), successive optimization led to the discovery of lead compound 15a(II). II demonstrated comparable in vitro potency to apelin-13, the endogenous peptidic ligand for the APJ receptor. In vivo, II demonstrated a dose-dependent improvement in the cardiac output in male Sprague Dawley rats with no significant changes in either mean arterial blood pressure or heart rate, consistent with the hemodynamic profile of apelin-13 in an acute pressure volume loop model.

Journal of Medicinal Chemistry published new progress about Cardioprotective agents. 647020-71-1 belongs to class bromides-buliding-blocks, name is Methyl 2-bromo-3-fluorobenzoate, and the molecular formula is C8H6BrFO2, Name: Methyl 2-bromo-3-fluorobenzoate.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Kendel, Melha published the artcileLipid composition, fatty acids and sterols in the seaweeds Ulva armoricana, and Solieria chordalis from Brittany (France): an analysis from nutritional, chemotaxonomic, and antiproliferative activity perspectives, Product Details of C15H29BrO2, the main research area is Ulva Solieria lipid fatty acid phytosterol glycolipid; Solieria chordalis; Ulva armoricana; chemotaxonomy; fatty acids; glycolipids; human lung cancer; hydroxy fatty acids; phospholipids; polyunsaturated fatty acids; sterols.

Lipids from the proliferative macroalgae Ulva armoricana (Chlorophyta) and Solieria chordalis (Rhodophyta) from Brittany, France, were investigated. The total content of lipids was 2.6% and 3.0% dry weight for U. armoricana and S. chordalis, resp. The main fractions of S. chordalis were neutral lipids (37%) and glycolipids (38%), whereas U. armoricana contained mostly neutral lipids (55%). Polyunsaturated fatty acids (PUFA) represented 29% and 15% of the total lipids in U. armoricana and S. chordalis, resp. In both studied algae, the phospholipids were composed of PUFA for 18%. In addition, PUFA were shown to represent 9% and 4.5% of glycolipids in U. armoricana and S. chordalis, resp. The essential PUFA were 16:4n-3, 18:4n-3, 18:2n-3, 18:2n-6, and 22:6n-3 in U. armoricana, and 20:4n-6 and 20:5n-3 in S. chordalis. It is important to notice that six 2-hydroxy-, three 3-hydroxy-, and two monounsaturated hydroxy fatty acids were also identified and may provide a chemotaxonomic basis for algae. These seaweeds contained interesting compounds such as squalene, α-tocopherol, cholest-4-en-3-one and phytosterols. The antiproliferative effect was evaluated in vitro on human non-small-cell bronchopulmonary carcinoma line (NSCLC-N6) with an IC50 of 23 μg/mL for monogalactosyldiacylglycerols isolated from S. chordalis and 24 μg/mL for digalactosyldiacylglycerols from U. armoricana. These results confirm the potentialities of valorization of these two species in the fields of health, nutrition and chemotaxonomy.

Marine Drugs published new progress about Fatty acids Role: BSU (Biological Study, Unclassified), BIOL (Biological Study). 56523-59-2 belongs to class bromides-buliding-blocks, name is 15-Bromopentadecanoic acid, and the molecular formula is C15H29BrO2, Product Details of C15H29BrO2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Hudson, Liam published the artcileNovel Quinazolinone Inhibitors of ALK2 Flip between Alternate Binding Modes: Structure-Activity Relationship, Structural Characterization, Kinase Profiling, and Cellular Proof of Concept, Synthetic Route of 124341-06-6, the main research area is quinazolinone synthesis antitumor SAR ALK2 cancer.

Structure-activity relationship and crystallog. data revealed that quinazolinone-containing fragments flip between two distinct modes of binding to activin receptor-like kinase-2 (ALK2). We explored both binding modes to discover potent inhibitors and characterized the chem. modifications that triggered the flip in binding mode. We report kinase selectivity and demonstrate that compounds of this series modulate ALK2 in cancer cells. These inhibitors are attractive starting points for the discovery of more advanced ALK2 inhibitors.

Journal of Medicinal Chemistry published new progress about Homo sapiens. 124341-06-6 belongs to class bromides-buliding-blocks, name is 6-Amino-3-bromo-2-methylbenzoic acid, and the molecular formula is C8H8BrNO2, Synthetic Route of 124341-06-6.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Sobolev, Vasily I. published the artcileReactivity of alkali and alkaline earth metal tetrafluorobromates towards aromatic compounds and pyridine, Recommanded Product: 1-Bromo-4-fluoro-2-methylbenzene, the main research area is alkali earth metal fluorobromate bromination aromatic compound nitrobenzene safety; aryl bromide preparation.

The bromination activity of tetrafluorobromates of alkali and alkali-earth metals increases in the order KBrF4, CsBrF4, RbBrF4 and Ba(BrF4)2. The most active tetrafluorobromate-Ba(BrF4)2 is able to selectively brominate the deactivated aromatic compounds nitrobenzene and 4-nitrotoluene, but not the activated compounds benzene and toluene. In all cases bromination of Me groups of methylbenzenes does not occur. Ba(BrF4)2 forms the known complex C6H5N·BrF3 when reacted with pyridine. Due to dilution by inert BaF2, this pyridine-based complex is air stable and can be considered as safer and more convenient reagent in comparison with the original fluorobromates; it can selectively brominate benzene and toluene in contrast with tetrafluorobromates.

Journal of Fluorine Chemistry published new progress about Aromatic compounds Role: RCT (Reactant), RACT (Reactant or Reagent). 452-63-1 belongs to class bromides-buliding-blocks, name is 1-Bromo-4-fluoro-2-methylbenzene, and the molecular formula is C7H6BrF, Recommanded Product: 1-Bromo-4-fluoro-2-methylbenzene.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Wu, Jie published the artcileDerivatives of Natural Product Agrimophol as Disruptors of Intrabacterial pH Homeostasis in Mycobacterium tuberculosis, Formula: C6H5BrO3, the main research area is agrimophol derivative antitubercular disruption pH homeostasis Mycobacterium tuberculosis; agrimophol; coumarin; diphenylmethane scaffold; intrabacterial pH homeostasis; pharmacophores.

This article reports the rational medicinal chem. of a natural product, agrimophol (1), as a new disruptor of intrabacterial pH (pHIB) homeostasis in Mycobacterium tuberculosis (Mtb). Through the systematic investigation of the structure-activity relationship of 1, scaffold-hopping of the diphenylmethane scaffold, pharmacophore displacement strategies, and studies of the structure-metabolism relationship, a new derivative 5a was achieved. Compound 5a showed 100-fold increased potency in the ability to reduce pHIB to pH 6.0 and similarly improved mycobactericidal activity compared with 1 against both Mycobacterium bovis-BCG and Mtb. Compound 5a possessed improved metabolic stability in human liver microsomes and hepatocytes, lower cytotoxicity, higher selectivity index, and similar pKa value to natural 1. This study introduces a novel scaffold to an old drug, resulting in improved mycobactericidal activity through decreasing pHIB, and may contribute to the critical search for new agents to overcome drug resistance and persistence in the treatment of tuberculosis.

ACS Infectious Diseases published new progress about Chromans Role: PAC (Pharmacological Activity), SPN (Synthetic Preparation), THU (Therapeutic Use), BIOL (Biological Study), PREP (Preparation), USES (Uses) (chromanones). 84743-77-1 belongs to class bromides-buliding-blocks, name is 2-Bromobenzene-1,3,5-triol, and the molecular formula is C6H5BrO3, Formula: C6H5BrO3.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary