Month: October 2022

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 244205-40-1, formula is C6H6BBrO2, Name is (2-Bromophenyl)boronic acid. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Formula: C6H6BBrO2.

Meleddu, Rita;Corona, Angela;Distinto, Simona;Cottiglia, Filippo;Deplano, Serenella;Sequeira, Lisa;Secci, Daniela;Onali, Alessia;Sanna, Erica;Esposito, Francesca;Cirone, Italo;Ortuso, Francesco;Alcaro, Stefano;Tramontano, Enzo;Matyus, Peter;Maccioni, Elias research published 《 Exploring New Scaffolds for the Dual Inhibition of HIV-1 RT Polymerase and Ribonuclease Associated Functions》, the research content is summarized as follows. Current therapeutic protocols for the treatment of HIV infection consist of the combination of diverse anti-retroviral drugs in order to reduce the selection of resistant mutants and to allow for the use of lower doses of each single agent to reduce toxicity. However, avoiding drugs interactions and patient compliance are issues not fully accomplished so far. Pursuing on our investigation on potential anti HIV multi-target agents we have designed and synthesized a small library of biphenylhydrazo 4-arylthiazoles derivatives and evaluated to investigate the ability of the new derivatives to simultaneously inhibit both associated functions of HIV reverse transcriptase. All compounds were active towards the two functions, although at different concentrations The substitution pattern on the biphenyl moiety appears relevant to determine the activity. In particular, compound 2-{3-[(2-{4-[4-(hydroxynitroso)phenyl]-1,3-thiazol-2-yl} hydrazin-1-ylidene) methyl]-4-methoxyphenyl} benzamide bromide (EMAC2063) was the most potent towards RNaseH (IC₅₀ = 4.5 mM)- and RDDP (IC₅₀ = 8.0 mM) HIV RT-associated functions.

Formula: C6H6BBrO2, 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

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 244205-40-1, formula is C6H6BBrO2, The most pervasive is the naturally produced bromomethane. Synthetic Route of 244205-40-1

Mei, Yong-Kang;Min, Xiang-Ting;Guo, Shi-Yu;Liu, Chang-Hui;Zhang, Xiang-Xin;Ji, Ding-Wei;Wan, Boshun;Chen, Qing-An research published 《 Photo-Induced Construction of N-Aryl Amides by Fe Catalysis》, the research content is summarized as follows. A photo-induced electrophilic amidation reaction with N-methoxyamides RC(O)NHOMe (R = Ph, 3-chlorophenyl, 2-thienyl, etc.) and arylboronic acids R¹B(OH)₂ (R¹ = Ph, 3-bromophenyl, 3-thienyl, etc.) at low temperature using a simple iron salt as the catalyst precursor to N-aryl amides RC(O)NHR¹ has been described. Initial mechanistic studies suggested that crucial amide radical species was involved.

244205-40-1, 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., Synthetic Route of 244205-40-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Dehydrobromination, Grignard reactions, reductive coupling, Wittig reaction, and several nucleophilic substitution reactions are some of the principal reactions which involve organic bromides. 70-23-5, formula is C5H7BrO3, Name is Ethyl 3-bromo-2-oxopropanoate. Organic compounds having carbon bonded to bromine are called organic bromides. Safety of Ethyl 3-bromo-2-oxopropanoate.

Mehrabi, Hossein;Alizadeh-Bami, Farzaneh;Meydani, Azam;Besharat, Soheila research published 《 An eco-friendly approach for the synthesis of 1,2,5-trisubstituted and 4-amino-1,2,5-tetrasubstituted imidazoles via a multi-component condensation》, the research content is summarized as follows. The synthesis of 1,2,5-trisubstituted imidazoles I (Ar = Ph, 2-chlorophenyl; Ar¹ = Ph, 4-tolyl, 4-bromophenyl, etc.) and 4-amino-1,2,5-tetrasubstituted imidazoles II (Ar² = 4-chlorophenyl, 4-bromophenyl; Ar³ = 4-tolyl, 4-methoxyphenyl, 3-nitrophenyl) was demonstrated via a two-step cyclo-condensation reaction of aryl amines Ar¹NH₂, carbonitriles ArCN, and Et bromopyruvate or aryl amines Ar³NH₂ and arylglyoxals Ar²C(O)CHO in ethanol heated under reflux in the presence of iron (III) chloride (FeCl₃), and disodium phosphate (Na₂HPO₄) as catalysts, resp. All the products I and II were obtained in good to excellent yields and their structures were established from their spectroscopic data.

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 bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 5392-10-9, formula is C9H9BrO3, Name is 2-Bromo-4,5-dimethoxybenzaldehyde. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Formula: C9H9BrO3.

Meena, Neha;Dhiman, Shiv;Rangan, Krishnan;Kumar, Anil research published 《 Cobalt-catalyzed tandem one-pot synthesis of polysubstituted imidazo[1,5-a]pyridines and imidazo[1,5-a]isoquinolines》, the research content is summarized as follows. An efficient cobalt-catalyzed tandem one-pot method has been developed for the synthesis of polysubstituted imidazo[1,5-a]-N-heteroaroms I (R = Ph, naphthalen-2-yl, thiophen-2-yl, etc.; R¹ = O, S; R² = H, Me; R³ = Ph, 2-methoxyphenyl, furan-2-yl, etc;). The method involves Knoevenagel condensation followed by cobalt-catalyzed direct alkenylation to give the desired polysubstituted imidazo[1,5-a]pyridines I and imidazo[1,5-a]isoquinolines II (R = Ph, naphthalen-2-yl, 2-nitrophenyl, etc.; R⁴ = R⁵ = H, OMe, -OCH₅O-; R⁴ = F;) in a one-pot manner. This method exhibits a broad substrate scope, provides moderate to good (39-74%) yields and is amenable to scale-up to the gram scale.

Formula: C9H9BrO3, 2-Bromo-4,5-dimethoxybenzaldehyde is a useful research compound. Its molecular formula is C9H9BrO3 and its molecular weight is 245.07 g/mol. The purity is usually 95%.
2-Bromo-4,5-dimethoxybenzaldehyde is a synthetic compound that has been shown to be an effective agent for inducing apoptosis in leukemia cells. It is an efficient method for synthesizing the compound and ha2-Bromo-4,5-dimethoxybenzaldehyde induces cell death by topoisomerase-mediated DNA cleavage, which results in chromosomal fragmentation and high levels of reactive oxygen species in the cell., 5392-10-9.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 823-78-9, formula is C7H6Br2, Name is 1-Bromo-3-(bromomethyl)benzene. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Product Details of C7H6Br2.

McKnight, Janette;Shavnya, Andre;Sach, Neal W.;Blakemore, David C.;Moses, Ian B.;Willis, Michael C. research published 《 Reductant-Free Cross-Electrophile Synthesis of Di(hetero)arylmethanes by Palladium-Catalyzed Desulfinative C-C Coupling》, the research content is summarized as follows. An efficient Pd-catalyzed one-pot desulfinative cross-coupling to access medicinally relevant di(hetero)arylmethanes I [R = Ph, 2-MeC₆H₄, 2-BrC₆H₄, etc.; R¹ = quinolin-3-yl, 3-pyridyl, 4-MeC₆H₄, etc.] was reported. The method was reductant-free and involved a sulfinate transfer reagent and a Pd-catalyst mediating the union of two electrophilic coupling partners; a (hetero)aryl halide and a benzyl halide. The reaction could be extended to benzylic pseudohalides derived from benzyl alcs. The reactions were straightforward to perform and scalable and all reaction components were com. available.

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., Product Details of C7H6Br2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic compounds having carbon bonded to bromine are called organic bromides. 402-49-3, formula is C8H6BrF3, Name is 1-(Bromomethyl)-4-(trifluoromethyl)benzene. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Formula: C8H6BrF3.

McKnight, Janette;Shavnya, Andre;Sach, Neal W.;Blakemore, David C.;Moses, Ian B.;Willis, Michael C. research published 《 Reductant-Free Cross-Electrophile Synthesis of Di(hetero)arylmethanes by Palladium-Catalyzed Desulfinative C-C Coupling》, the research content is summarized as follows. An efficient Pd-catalyzed one-pot desulfinative cross-coupling to access medicinally relevant di(hetero)arylmethanes I [R = Ph, 2-MeC₆H₄, 2-BrC₆H₄, etc.; R¹ = quinolin-3-yl, 3-pyridyl, 4-MeC₆H₄, etc.] was reported. The method was reductant-free and involved a sulfinate transfer reagent and a Pd-catalyst mediating the union of two electrophilic coupling partners; a (hetero)aryl halide and a benzyl halide. The reaction could be extended to benzylic pseudohalides derived from benzyl alcs. The reactions were straightforward to perform and scalable and all reaction components were com. available.

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., Formula: C8H6BrF3

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 4897-84-1, formula is C5H9BrO2, The most pervasive is the naturally produced bromomethane. Reference of 4897-84-1

McDonagh, Anthony W.;McNeil, Brooke L.;Patrick, Brian O.;Ramogida, Caterina F. research published 《 Synthesis and Evaluation of Bifunctional [2.2.2]-Cryptands for Nuclear Medicine Applications》, the research content is summarized as follows. For the first time, synthesis of bifunctional [2.2.2]-cryptands (CRYPT) and demonstration of radiolabeling with lead(II) (Pb²⁺) isotopes are disclosed herein. The synthesis is convenient and high-yielding and gives access to three distinct bifunctional handles (azide (-N₃), isothiocyanate (-NCS), and tetrazine (-Tz)) that can enable the construction of radioimmunoconjugates for targeted and pretargeted therapy. Proof-of-principle CRYPT radiolabeling was successful with lead-203 ([²⁰³Pb]Pb²⁺) and demonstrated complexation efficiency superior to that of DOTA (1,4,7,10-tetraazacyclododecane-1,4,7,10-tetraacetic acid) and efficiency comparable to that of the current industry standard TCMC (1,4,7,10-tetraaza-1,4,7,10-tetra-(2-carbamoylmethyl)-cyclododecane). In vitro human serum stability assays demonstrated excellent [²⁰³Pb]Pb-CRYPT stability over 72 h (91.7 ± 0.56%; n = 3). [²⁰³Pb]Pb-CRYPT-radioimmunoconjugates were synthesized from the corresponding CRYPT-immunoconjugate or by conjugating [²⁰³Pb]Pb-Tz-CRYPT to transcyclooctene modified trastuzumab (TCO-trastuzumab) via the inverse electron-demand Diels-Alder (IEEDA) reaction. This investigation reveals the potential for CRYPT ligands to become new industry standards for therapeutic and diagnostic radiometals in radiopharmaceutical elaboration.

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., Reference of 4897-84-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic compounds having carbon bonded to bromine are called organic bromides. 6911-87-1, formula is C7H8BrN, Name is 4-Bromo-N-methylaniline. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Application In Synthesis of 6911-87-1.

Mazodze, C. Munashe;Petersen, Wade F. research published 《 Silver-catalysed double decarboxylative addition-cyclization-elimination cascade sequence for the synthesis of quinolin-2-ones》, the research content is summarized as follows. An atom-efficient silver-catalyzed double carboxylative strategy for the one-step synthesis of quinolin-2-ones I [R¹ = H, Me, CF₃; R² = H, Me; R¹R² = CH₂CH₂CH₂, CH₂(CH₂)₂CH₂; R³ = Me, Bn, Ph, etc.; R⁴ = H, 6-F, 6-OMe, etc.] via an addition-cyclization-elimination cascade sequence of oxamic acids to acrylic acids, mediated either thermally or photochem., was reported. The reaction was applicable to the synthesis of a broad range of quinolin-2-ones and featured a double-disconnection approach that constructed the quinolin-2-one core via the formal and direct addition of a C(sp²)-H/C(sp²)-H olefin moiety to a phenylformamide precursor.

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., Application In Synthesis of 6911-87-1

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. 585-76-2, formula is C7H5BrO2, Name is 3-Bromobenzoic acid, Quality Control of 585-76-2

Maurer, David;Breit, Bernhard research published 《 Urea-Substituted Tetramethylcyclopentadienyl Ligands for Supramolecularly Accelerated Rh^III-Catalyzed ortho-C-H Olefination of Benzoic Acid Derivatives》, the research content is summarized as follows. The design and synthesis of air-stable and conveniently crystallizable Rh^III-cyclopentadienyl catalysts substituted with a urea moiety, which were able to accelerate the C-H olefination of benzoic acid derivatives, was reported. Through kinetic studies and NMR titration experiments, the catalysts’ substrate recognition ability mediated by hydrogen bonding was identified to be the reason for this effect. Introduction of pyridone-phosphine ligands capable of forming addnl. H-bond interactions increased the catalytic performance even further. By unveiling a proportionality between reaction rate and relative complex formation enthalpy the hypothesis of a supramol. catalyst preformation was supported. Its application to a variety of substrates proved the catalyst system’s advantages, generally increasing the yields when compared to the results obtained with widely used [RhCp*Cl₂]₂.

Quality Control of 585-76-2, 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

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. 823-78-9, formula is C7H6Br2, Name is 1-Bromo-3-(bromomethyl)benzene, Formula: C7H6Br2

Mattison, Andrew;Brown, John M.;Carmichael, Duncan;Alcock, Nathaniel W. research published 《 Are stable atropisomers possible for meta-meta’ linked biphenols》, the research content is summarized as follows. This paper describes the synthesis, structure, conformation and configurational stability of novel 8-atom meta-meta’ linked biaryls, as models for controlling the ratio of atropisomers through remote central chirality. The synthesis of model compounds is described where the configuration of the linker is provided by reduced C4 and C6 sugars. Their properties have been examined by X-ray, NMR and ECD. Taken together, they provide information on the conformation of the linking chain in each case and indicate a barrier to atropisomerisation in the region of 55 kJ mol^-1. For the diastereomeric C6 compounds, the preferred atropisomer is defined by the configuration of the backbone secondary Me groups. Computational anal. confirms the direction of axial chirality from ECD spectra and offers a model for the distinction between the (R,R,R,R) and (S,R,R,S) C6-isomers.

Formula: C7H6Br2, 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