Month: October 2022

One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine. 70-23-5, formula is C5H7BrO3, Name is Ethyl 3-bromo-2-oxopropanoate, Safety of Ethyl 3-bromo-2-oxopropanoate

Reddy, Ramesh B.;M, Vijay;Krishnan, Mena Asha;Chelvam, Venkatesh research published 《 Synthesis of tubuvaline (Tuv) fragment of tubulysin via diastereoselective dihydroxylation of homoallylamine》, the research content is summarized as follows. Tubulysins are natural anticancer mols. that directly bind and inhibit tubulin polymerization in actively dividing cells leading to apoptosis and cell death. Structurally, tubulysins are linear tetrapeptides, constituted by a natural amino acid (Ile) and three non-canonical amino acids (Mep, Tuv, and Tup). Herein, we report a convenient strategy for the practical synthesis of tubuvaline fragment of tubulysin natural products. In this approach, we describe the regioselective ring opening of a chiral aziridine with vinyl Grignard reagent to obtain (R)-tert-butyl(2-methylhex-5-en-3-yl)(tosyl)carbamate which was further subjected to Sharpless asym. dihydroxylation with AD-mix-β resulting in the formation of (2 R,4R)-4-((tert-butoxycarbonyl)amino)-2-(methoxymethoxy)-5-methylhexanoic acid that was finally transformed to tubuvaline by heterocyclization.

Safety of Ethyl 3-bromo-2-oxopropanoate, Ethyl bromopyruvate molecular formula is C5H7BrO3 and its molecular weight is 195.01 g/mol. The purity is usually 95%.

Ethyl bromopyruvate is used in a synthesis of thioxothiazolidines from carbon disulfide and primary amines.

Ethyl bromopyruvate is a chemical inhibitor that inhibits the enzyme pyruvate dehydrogenase, which is responsible for the conversion of pyruvic acid to acetyl-CoA. This inhibition leads to a decrease in ATP levels and can cause metabolic disorders. Ethyl bromopyruvate is used as an anthelmintic drug and in asymmetric synthesis. It is also used in the synthesis of thiostrepton, an antibiotic that has been shown to have antimicrobial activity against Gram-positive bacteria, including Staphylococcus aureus and Streptococcus pneumoniae., 70-23-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic compounds having carbon bonded to bromine are called organic bromides. 244205-40-1, formula is C6H6BBrO2, Name is (2-Bromophenyl)boronic acid. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Category: bromides-buliding-blocks.

Reason, Thomas E.;Goka, Benjamin;Krause, Jeanette A.;Fionah, Abelline K.;Zahran, Elsayed M.;Rayat, Sundeep research published 《 Cu₂O nanoparticle-catalyzed synthesis of diaryl tetrazolones and investigation of their solid-state properties》, the research content is summarized as follows. An efficient and versatile method for the synthesis of 1,4-diaryl tetrazolones I [Ar¹ = Ph, 4-MeOC₆H₄, 4-O₂NC₆H₄; Ar² = Ph, 4-FC₆H₄, 3-pyridyl, etc.] was reported which involved C-N coupling of aryl tetrazolones with aryl boronic acids in the presence of Cu₂O nanoparticles under an oxygen atm. and DMSO as solvent. The reaction tolerated a variety of electron donating and electron withdrawing substituents on both substrates and produced the desired 1,4-diaryl tetrazolones I in moderate to good yields. In the crystal lattice, the mols. exhibited π···π stacking interactions between the adjacent layers as well as weak through-space electrostatic C-H···O interactions involved the pendant rings and tetrazolone carbonyl. The compounds I [Ar¹ = 4-MeOC₆H₄; Ar² = 3-MeC₆H₄, 3-FC₆H₄] differed only in the presence of one group (Me or fluoro), exhibited an identical pattern of noncovalent interactions in the solid-state. Hirshfeld surface anal. had also been performed to visualize intermol. interactions.

Category: bromides-buliding-blocks, 2-Bromophenylboronic Acid is used as an inhibitor of the hormone sensitive lipase.
2-Bromophenylboronic acid, also known as 2-Bromophenylboronic acid, is a useful research compound. Its molecular formula is C6H6BBrO2 and its molecular weight is 200.83 g/mol. The purity is usually 95%.
2-Bromophenylboronic acid is a glucose monitoring agent that has a ruthenium complex with an acidic environment. The nitro group and the amines are in close proximity to the boron center, and this proximity leads to a high nucleophilic character of the molecule. This reactivity allows 2-bromophenylboronic acid to be used as a fluorescence probe for acidic environments. 2-Bromophenylboronic acid also inhibits secretase enzymes, which are involved in Alzheimer’s disease and other neurodegenerative disorders. It is an inhibitor of γ-secretase, which is responsible for cleaving the amyloid precursor protein (APP), and it has shown efficacy against biphenyl, an anticancer drug that binds to benzodiazepine receptors. 2-Bromophenylboronic acid is also an enantiopure compound because all four substituents are different from each other., 244205-40-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 6911-87-1, formula is C7H8BrN, Name is 4-Bromo-N-methylaniline. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Related Products of 6911-87-1.

Ray, Ritwika;Hartwig, John F. research published 《 Oxalohydrazide Ligands for Copper-Catalyzed C-O Coupling Reactions with High Turnover Numbers》, the research content is summarized as follows. Here, we report a class of ligands based on oxalohydrazide cores and N-amino pyrrole and N-amino indole units that generates long-lived copper catalysts for couplings that form the C-O bonds in biaryl ethers. These Cu-catalyzed coupling of phenols with aryl bromides occurred with turnovers up to 8000, a value which is nearly two orders of magnitude higher than those of prior couplings to form biaryl ethers and nearly an order of magnitude higher than those of any prior copper-catalyzed coupling of aryl bromides and chlorides. This ligand also led to copper systems that catalyze the coupling of aryl chlorides with phenols and the coupling of aryl bromides and iodides with primary benzylic and aliphatic alcs. A wide variety of functional groups including nitriles, halides, ethers, ketones, amines, esters, amides, vinylarenes, alcs. and boronic acid esters were tolerated, and reactions occurred with aryl bromides in pharmaceutically related structures.

6911-87-1, 4-Bromo-N-methylaniline is a aniline based compound known to exhibit mutagenic properties.
4-Bromo-N-methylaniline is a useful research compound. Its molecular formula is C7H8BrN and its molecular weight is 186.05 g/mol. The purity is usually 95%.
4-Bromophenylmethylamine is an organic compound that has anti-inflammatory properties and is used as a pharmaceutical. It belongs to the group of amines. The hydrolysis of 4-bromophenylmethylamine by hydrochloric acid produces phenol and bromamine (NHBr). The reaction system can be used to synthesize a number of compounds, including anilines, benzofurans, and other aromatic compounds. 4-Bromophenylmethylamine reacts with muscle tissue in a similar manner as acetaminophen does. This drug also has been shown to have significant effects on the energy metabolism in the muscles of rats that are given carbon source., Related Products of 6911-87-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 19111-87-6, formula is C18H11Br, The most pervasive is the naturally produced bromomethane. Recommanded Product: 2-Bromotriphenylene

Rawat, Vishal Kumar;Higashida, Kosuke;Sawamura, Masaya research published 《 Nickel-Catalyzed Homocoupling of Aryl Ethers with Magnesium Anthracene Reductant》, the research content is summarized as follows. Nickel-catalyzed reductive homocoupling of aryl ethers has been achieved with Mg(anthracene)(thf)₃ as a readily available low-cost reductant. DFT calculations provided a rationale for the specific efficiency of the diorganomagnesium-type two-electron reducing agent. The calculations show that the dianionic anthracene-9,10-diyl ligand reduces the two aryl ether substrates, resulting in the homocoupling reaction through supply of electrons to the Ni-Mg bimetallic system to form organomagnesium nickel(0)-ate complexes, which cause two sequential C-O bond cleavage reactions. The calculations also showed cooperative actions of Lewis acidic magnesium atoms and electron-rich nickel atoms in the C-O cleavage reactions.

Recommanded Product: 2-Bromotriphenylene, 2-Bromotriphenylene is a useful research compound. Its molecular formula is C18H11Br and its molecular weight is 307.2 g/mol. The purity is usually 95%.
2-Bromotriphenylene is a brominating agent that has the ability to react with sodium carbonate and emit light. The luminescence of 2-bromotriphenylene can be used as an indicator of the degree of dilution, or how much water is present in a solution. It also emits light when it reacts with chloride ions in a reaction solution. 2-Bromotriphenylene can be used as a polymer matrix to form polymeric films, which are then used as catalysts for organic reactions. The luminescence properties of 2-bromotriphenylene make it suitable for use in functional theory experiments. This chemical compound is relatively low cost, and has been shown to have high yield in catalysis., 19111-87-6.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 402-49-3, formula is C8H6BrF3, Name is 1-(Bromomethyl)-4-(trifluoromethyl)benzene. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Related Products of 402-49-3.

Ravu, Ranga Rao;Jacob, Melissa R.;Khan, Shabana I.;Wang, Mei;Cao, Liang;Agarwal, Ameeta K.;Clark, Alice M.;Li, Xing-Cong research published 《 Synthesis and Antifungal Activity Evaluation of Phloeodictine Analogues》, the research content is summarized as follows. The phloeodictine-based 6-hydroxy-2,3,4,6-tetrahydropyrrolo[1,2-a]pyrimidinium structural moiety with an n-tetradecyl side chain at C-6 has been demonstrated to be a new antifungal template. Thirty-four new synthetic analogs with modifications of the bicyclic tetrahydropyrrolopyrimidinium skeleton and the N-1 side chain have been prepared and evaluated for in vitro antifungal activities against the clin. important fungal pathogens including Cryptococcus neoformans ATCC 90113, Candida albicans ATCC 90028, Candida glabrata ATCC 90030, Candida krusei ATCC 6258, and Aspergillus fumigatus ATCC 90906. Nineteen compounds showed antifungal activities against the aforementioned five fungal pathogens with min. inhibitory concentrations (MICs) in the range 0.88-10μM, and all were fungicidal with min. fungicidal concentrations (MFCs) similar to the resp. MIC values. Three compounds were especially active against C. neoformans ATCC 90113 with MIC/MFC values of 1.0/1.0, 1.6/1.6, and 1.3/2.0μM but exhibited low cytotoxicity with an IC₅₀ > 40μM against the mammalian Vero cells. The structure and antifungal activity relationship indicates that synthetic modifications of the phloeodictines can afford analogs with potent antifungal activity and reduced cytotoxicity, necessitating further preclin. studies of this new class of antifungal compounds

402-49-3, 4-Trifluoromethylbenzyl bromide is a useful research compound. Its molecular formula is C8H6BrF3 and its molecular weight is 239.03 g/mol. The purity is usually 95%.
4-Trifluoromethylbenzyl bromide is a choline derivative that acts as an anticancer agent. It is structurally similar to the anticancer drug doxorubicin, which has been shown to be effective against breast cancer and leukemia. 4-Trifluoromethylbenzyl bromide interacts with cellular proteins, including choline kinase, and inhibits the mitochondrial pathway. This leads to cell death through apoptosis. The molecule also interacts with nucleotide bases such as thymine and cytosine in DNA, inhibiting transcription and replication. 4-Trifluoromethylbenzyl bromide binds strongly to the hydroxyl group of cholesterol by an electrophilic substitution mechanism to form a covalent bond with its hydroxy group. The molecule can also bind to chloride ions by an ionic bond., Related Products of 402-49-3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 4897-84-1, formula is C5H9BrO2, Name is Methyl 4-bromobutanoate. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Synthetic Route of 4897-84-1.

Raubo, Piotr;Carbajo, Rodrigo J.;McCoull, William;Raubo, Joanna;Thomas, Morgan research published 《 Diversity-orientated synthesis of macrocyclic heterocycles using a double S_NAr approach》, the research content is summarized as follows. An efficient macrocyclization approach based on the double aromatic nucleophilic substitution (SNACK) was developed. This methodol. allows a facile incorporation of heterocyclic motifs into macrocyclic rings and rapid synthesis of a significant number of structurally diverse macrocycles e.g., I. SNACK macrocyclization enables preparation of stable diastereoisomers of conformationally restricted macrocycles (atropisomers) e.g., II and e.g., III. Practical application of SNACK macrocyclization in a drug discovery project was exemplified by the identification of high affinity macrocyclic binders of B-cell lymphoma 6 (BCL6).

4897-84-1, Methyl 4-bromobutyrate,also as known as 4-Bromobutyric acid methyl ester, is a useful research compound. Its molecular formula is C5H9BrO2 and its molecular weight is 181.03 g/mol. The purity is usually 95%.
4-Bromobutyric acid methyl ester is a synthetic compound that can be used to inhibit the activity of the G1 phase cyclin-dependent kinases. It has been shown to inhibit protein synthesis by alkylating the amino groups of proteins and fatty acids. 4-Bromobutyric acid methyl ester also inhibits the growth of cancer cell lines, such as renal carcinoma cells. The mechanism of action for this drug is not well understood, but it may be due to its ability to bind with monoclonal antibodies and enter kidney cells by passive diffusion., Synthetic Route of 4897-84-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 823-78-9, formula is C7H6Br2, Name is 1-Bromo-3-(bromomethyl)benzene. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Computed Properties of 823-78-9.

Rathnayake, Manjula D.;Weaver, Jimmie D. III research published 《 Coupling Photocatalysis and Substitution Chemistry to Expand and Normalize Redox-Active Halides》, the research content is summarized as follows. Photocatalysis can generate radicals in a controlled fashion and has become an important synthetic strategy. However, limitations due to the reducibility of alkyl halides prevent their broader implementation. Herein authors explore the use of nucleophiles that can substitute the halide and serve as an electron capture motif that normalize the variable redox potentials across substrates. When used with photocatalysis, bench-stable, com. available collidinium salts prove to be excellent radical precursors with a broad scope.

Computed Properties of 823-78-9, 3-Bromobenzyl bromide undergoes reduction with diethylzinc in the presence of Pd(PPh3)4 to yield corresponding hydrocarbon.

3-Bromobenzyl bromide is a useful research compound. Its molecular formula is C7H6Br2 and its molecular weight is 249.93 g/mol. The purity is usually 95%.

3-Bromobenzyl bromide is a molecule that has been synthesized and shown to have anticancer activity. It inhibits the activity of cancer cells by binding to amines in these cells and preventing the formation of hydrogen bonds between these molecules. 3-Bromobenzyl bromide has also been shown to selectively inhibit the activity of NS5B polymerase, an enzyme that is important in the replication of the hepatitis C virus. The synthetic nature of this molecule makes it an attractive target for analytical methods such as nuclear magnetic resonance spectroscopy. This molecule also shows significant cytotoxicity against cancer cell lines in vitro, as well as inducing tumor necrosis factor-alpha (TNF-α) production in lps-stimulated murine macrophages., 823-78-9.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 585-76-2, formula is C7H5BrO2, Name is 3-Bromobenzoic acid. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Name: 3-Bromobenzoic acid.

Rao, Wei-Hao;Li, Qi;Jiang, Li-Li;Deng, Xue-Wan;Xu, Pan;Chen, Fang-Yuan;Li, Ming;Zou, Guo-Dong research published 《 Copper-Catalyzed Intermolecular C(sp²)-H Amination with Electrophilic O-Benzoyl Hydroxylamines》, the research content is summarized as follows. A copper-catalyzed intermol. electrophilic amination of benzamides with O-benzoyl hydroxylamines was achieved with the assistance of an 8-aminoquinolyl group. With this protocol, good compatibility was observed for a variety of aryl amides and heteroaryl amides, and excellent tolerance with various functional groups was achieved. Significantly, the monoaminated product was overwhelmingly delivered under the simple reaction conditions. Preliminary mechanistic investigations suggested that a radical pathway should be excluded and C-H activation be potentially the rate-determining step.

Name: 3-Bromobenzoic acid, 3-bromobenzoic acid is a bromobenzoic acid carrying a single bromo subsituent at the 3-position.
3-Bromobenzoic acid, also known as 3-Bromobenzoic acid, is a useful research compound. Its molecular formula is C7H5BrO2 and its molecular weight is 201.02 g/mol. The purity is usually 95%.
3-bromobenzoic acid is used as a reagent in the synthesis of deoxypodophyllotoxin derivatives with insecticidal activity. Also used as a reagent in the synthesis of thiazole derivatives with antibacterial activity.
3-bromobenzoic acid is a molecule that is classified as a Group P2. It has an electronegativity of 1.3 and an acidity of 0.8, which are both in the middle range of values for this group. 3-Bromobenzoic acid is soluble in water and is soluble in ethanol, acetone, and ether. The chemical structure of 3-bromobenzoic acid can be determined by its monoclonal antibody binding sites, electrochemical impedance spectroscopy data, and Langmuir adsorption isotherm data. 3-Bromobenzoic acid reacts with hydrochloric acid to form benzoate and HCl gas. Chronic exposure to 3-bromobenzoic acid has been shown to cause glutamate dehydrogenase inhibition, leading to an accumulation of p-hydroxybenzoic acid in the body. , 585-76-2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic compounds having carbon bonded to bromine are called organic bromides. 2576-47-8, formula is C2H7Br2N, Name is 2-Bromoethylamine hydrobromide. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. COA of Formula: C2H7Br2N.

Rani, Kavita;Pandey, Upendra K.;Sengupta, Sanchita research published 《 Efficient electron transporting and panchromatic absorbing FRET cassettes based on aza-BODIPY and perylenediimide towards multiple metal FRET-Off sensing and ratiometric temperature sensing》, the research content is summarized as follows. Multichromophoric triads based on aza-BODIPY as the central chromophore and bay-substituted (tetrachloro- and tetraphenoxy-)perylenediimides (PDI) as peripheral chromophores have been designed and synthesized that are panchromatic absorbers and near IR (NIR) emitters. Both triads exhibited ~99% Forster resonance energy transfer (FRET) from the peripheral PDIs to central aza-BODIPY. The excitation energy transfer from PDI to aza-BODIPY was studied via steady state emission, fluorescence quantum yield, time resolved fluorescence emission and theor. calculations These studies revealed quant. singlet excitation energy transfer efficiencies for 1 and 2. Electrochem. studies revealed the strong electron deficient character of these triads and thus electron mobilities of these triads were measured using space charge limited current (SCLC) method. Triads 1 and 2 exhibited appreciable electron mobilities of 2.44 ± 1.70 x 10-3 cm2 V-1 s-1 and 4.00 ± 1.50 x 10-3 cm2 V-1 s-1 resp., an order of magnitude higher mobility than aza-BODIPY based small mols. reported in the literature. Leveraging upon the dual emission behavior of these triads, ratiometric FRET sensing as well as ratiometric temperature sensing behavior were investigated via steady state absorption and fluorescence measurements. Triads 1 and 2 showed remarkable ratiometric FRET-off sensing where the addition of metals such as Co2+ and Fe3+ led to near-quant. FRET off for both the triads. Triads 1 and 2 also serve as efficient ratiometric temperature sensors with pos. temperature coefficients and small temperature sensitivities of ~0.29% °C-1 and ~0.14% °C-1 resp. that suggest the possibility of precise physiol. temperature measurements using these triads.

2576-47-8, 2-Bromoethylamine hydrobromide is a useful building block for proteomics research.
2-Bromoethylamine hydrobromide is used in the synthesis of analogs of 5,​10,​15,​20-​tetrakis(1-​methylpyridinium-​4-​yl)​porphyrin (TMPyP4) as inhibitors of human telomerase. It is also used to prepare SB-705498, a potent, selective and orally bioavailable TRPV1 antagonist. It is used to construct C2-symmetric imidazolidinylidene ligands with a dioxolane backbone.
2-Bromoethylamine Hydrobromide is used in the synthesis of analogs of 5,​10,​15,​20-​tetrakis(1-​methylpyridinium-​4-​yl)​porphyrin (TMPyP4) as inhibitors of human telomerase. It is also used to prepare SB-705498, a potent, selective and orally bioavailable TRPV1 antagonist.
2-Bromoethylamine hydrobromide is a nonsteroidal anti-inflammatory drug that is used to treat inflammation and pain. It is a prodrug that is hydrolyzed in vivo to its active form, 2-Bromoethylamine hydrobromide. The bound form of this drug has been shown to inhibit the development of cell nuclei in the nucleus of cells. This drug also inhibits the production of nitric oxide, which leads to cell death by necrosis. 2-Bromoethylamine hydrobromide has been shown to have an inhibitory effect on the activity of glycol ethers, which are used as solvents for resins in coatings and adhesives., COA of Formula: C2H7Br2N

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

One prominent application of synthetic organobromine compounds is the use of polybrominated diphenyl ethers as fire-retardants, and in fact fire-retardant manufacture is currently the major industrial use of the element bromine. 70-23-5, formula is C5H7BrO3, Name is Ethyl 3-bromo-2-oxopropanoate, Application In Synthesis of 70-23-5

Rani, Chekuri Sharmila;Reddy, Alugubelli Gopi;Susithra, E.;Mak, Kit-Kay;Pichika, Mallikarjuna Rao;Reddymasu, Sreenivasulu;Rao, Mandava Venkata Basaveswara research published 《 Synthesis and anticancer evaluation of amide derivatives of imidazo-pyridines》, the research content is summarized as follows. Abstract: A novel series of amide functionalized imidazo[1,2-a]pyridine (14a-14j) derivatives were synthesized and screened for their anticancer activities against breast (MCF-7 and MDA-MB-231), lung (A549), and prostate (DU-145) cancer cell lines using MTT assay with etoposide as the standard reference drug. Among them, compound 14 showed highest potency in anticancer activities against MCF-7, MDA-MB-231, A549, and DU-145 cell lines with IC₅₀ values of 0.021 ± 0.0012μM, 0.95 ± 0.039μM, 0.091 ± 0.0053μM, and 0.24 ± 0.032μM, resp.

Application In Synthesis of 70-23-5, Ethyl bromopyruvate molecular formula is C5H7BrO3 and its molecular weight is 195.01 g/mol. The purity is usually 95%.

Ethyl bromopyruvate is used in a synthesis of thioxothiazolidines from carbon disulfide and primary amines.

Ethyl bromopyruvate is a chemical inhibitor that inhibits the enzyme pyruvate dehydrogenase, which is responsible for the conversion of pyruvic acid to acetyl-CoA. This inhibition leads to a decrease in ATP levels and can cause metabolic disorders. Ethyl bromopyruvate is used as an anthelmintic drug and in asymmetric synthesis. It is also used in the synthesis of thiostrepton, an antibiotic that has been shown to have antimicrobial activity against Gram-positive bacteria, including Staphylococcus aureus and Streptococcus pneumoniae., 70-23-5.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary