Tag: M.W=200-250

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 5392-10-9, formula is C9H9BrO3, Name is 2-Bromo-4,5-dimethoxybenzaldehyde. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Application In Synthesis of 5392-10-9.

Yen-Pon, Expedite;Buttard, Floris;Frederic, Lucas;Thuery, Pierre;Taran, Frederic;Pieters, Gregory;Champagne, Pier Alexandre;Audisio, Davide research published 《 Heterohelicenes through 1,3-Dipolar Cycloaddition of Sydnones with Arynes: Synthesis, Origins of Selectivity, and Application to pH-Triggered Chiroptical Switch with CPL Sign Reversal》, the research content is summarized as follows. Regioselective access to heterohelicenes through the 1,3-dipolar cycloaddition of sydnones with arynes was described. Novel access to sydnones and poly(hetero)aromatic aryne precursors allowed the introduction of chem. diversity over multiple positions of the helical scaffolds. The origins of the unconventional regioselectivity during the cycloaddition steps was systematically investigated using d. functional theory (DFT) calculations, unveiling the key features that control this reactivity, namely, face-to-face (π···π) or edge-to-face (C-H···π) interactions, primary orbital interactions and distortion from coplanarity in the transition structures (TSs) of the transformation. From the library of 24 derivatives synthesized, a pyridyl containing derivative displayed reversible, red-shifted, pH-triggered chiroptical switching properties, with CPL-sign reversal. It was found that protonation of the helicene causes a change of the angle between the elec. and magnetic dipole moments related to the S₁ → S₀ transition, resulting in this rare case of reversible CPL sign inversion upon application of an external stimulus.

Application In Synthesis of 5392-10-9, 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

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. 244205-40-1, formula is C6H6BBrO2, Name is (2-Bromophenyl)boronic acid, Quality Control of 244205-40-1

Yoshida, Yasushi;Mino, Takashi;Sakamoto, Masami research published 《 Chiral Hypervalent Bromine(III) (Bromonium Salt): Hydrogen- and Halogen-Bonding Bifunctional Asymmetric Catalysis by Diaryl-λ³-bromanes》, the research content is summarized as follows. Bromonium salts, which are hypervalent bromine reagents, have been explored as being strong electrophiles owing to their extremely high nucleofugalities. Only one example of their catalytic application has been reported by our group; however, their chiral versions have not yet been researched. Halogen-bonding (XB) has been widely applied in chem.; however, its successful application to highly enantioselective Lewis acid catalysis has not yet been achieved. Herein, we report the design and development of chiral cyclic diarylbromonium salts. These catalysts enabled a highly enantioselective Lewis acid XB catalysis, giving products with up to 96% ee.

Quality Control of 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., 244205-40-1.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 244205-40-1, formula is C6H6BBrO2, Name is (2-Bromophenyl)boronic acid. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Category: bromides-buliding-blocks.

Yoshida, Yasushi;Ishikawa, Seitaro;Mino, Takashi;Sakamoto, Masami research published 《 Bromonium salts: diaryl-λ³-bromanes as halogen-bonding organocatalysts》, the research content is summarized as follows. The synthesis of novel, stable bromonium salts and their first catalytic application to the Michael reaction, with excellent product yield (up to 96%) was reported.

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

Organic compounds having carbon bonded to bromine are called organic bromides. 585-76-2, formula is C7H5BrO2, Name is 3-Bromobenzoic acid. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Reference of 585-76-2.

Yoshimori, Atsushi;Asawa, Yasunobu;Kawasaki, Enzo;Tasaka, Tomohiko;Matsuda, Seiji;Sekikawa, Toru;Tanabe, Satoshi;Neya, Masahiro;Natsugari, Hideaki;Kanai, Chisato research published 《 Design and Synthesis of DDR1 Inhibitors with a Desired Pharmacophore Using Deep Generative Models》, the research content is summarized as follows. Discoidin domain receptor 1 (DDR1) inhibitors with a desired pharmacophore were designed using deep generative models (DGMs). DDR1 is a receptor tyrosine kinase activated by matrix collagens and implicated in diseases such as cancer, fibrosis and hypoxia. Herein we describe the synthesis and inhibitory activity of compounds generated from DGMs. Three compounds were found to have sub-micromolar inhibitory activity. The most potent compound (N-(4-chloro-3-((pyridin-3-yloxy)methyl)phenyl)-3-(trifluoromethyl)benzamide), had an IC₅₀ value of 92.5 nM. Furthermore, these compounds were predicted to interact with DDR1, which have a desired pharmacophore derived from a known DDR1 inhibitor. The results of synthesis and experiments indicated that our de novo design strategy is practical for hit identification and scaffold hopping.

Reference 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

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 20469-65-2, formula is C8H9BrO2, Name is 1-Bromo-3,5-dimethoxybenzene. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Reference of 20469-65-2.

Yoshioka, Shota;Wen, Ke;Saito, Susumu research published 《 Development of Effective Bidentate Diphosphine Ligands of Ruthenium Catalysts toward Practical Hydrogenation of Carboxylic Acids》, the research content is summarized as follows. Hydrogenation of carboxylic acids (CAs) to alcs. represents one of the most ideal reduction methods for using abundant CAs as alternative C and energy sources. However, systematic studies on the effects of metal-to-ligand relations on the catalytic activity of metal complex catalysts are scarce. The authors previously demonstrated a rational methodol. for CA hydrogenation, in which CA-derived cationic metal carboxylate [(PP)M(OCOR)]+ (M = Ru and Re; P = one P coordination) served as the catalyst prototype for CA self-induced CA hydrogenation. Herein, the authors report systematic trial-and-error studies on how the authors could achieve higher catalytic activity by modifying the structure of bidentate diphosphine (PP) ligands of mol. Ru catalysts. C chains connecting two P atoms as well as Ar groups substituted on the P atoms of PP ligands were intensively varied, and the induction of active Ru catalysts from precatalyst Ru(acac)₃ was surveyed extensively. As a result, the activity and durability of the (PP)Ru catalyst substantially increased compared to those of other mol. Ru catalyst systems, including the authors’ original Ru catalysts. The results validate the authors’ approach for improving the catalyst performance, which would benefit further advancement of CA self-induced CA hydrogenation.

Reference of 20469-65-2, 1-Bromo-3,5-dimethoxybenzene, also known as 1-Bromo-3,5-dimethoxybenzene, is a useful research compound. Its molecular formula is C8H9BrO2 and its molecular weight is 217.06 g/mol. The purity is usually 95%.
1-Bromo-3,5-dimethoxybenzene is used as an intermediate in the synthetic preparation of pharmaceutical inhibitors via cross-coupling reactions.
1-Bromo-3,5-dimethoxybenzene can be synthesized by using 1,3-dimethoxybenzene via iridium-catalyzed arene borylation.
1-Bromo-3,5-dimethoxybenzene (1BDMB) is a synthetic molecule that can be used as an electron acceptor in organic photovoltaic cells. 1BDMB is a salt of the sodium salt of resorcylic acid and 1,3-dibromo-5,5-dimethoxybenzene. It has been shown to have a radical mechanism for the generation of free radicals. The radical mechanism is initiated by light absorption by the ruthenium complex at the center of the molecule which induces photoinduced electron transfer from the ruthenium to 1BDMB. This process results in electron transfer from the donor to an acceptor molecule, such as oxygen or nitrogen. The pharmacokinetic properties of this compound are not well known; however, it has been demonstrated that it can be synthesized through a cross-coupling reaction with other aromatic compounds such as stemofuran., 20469-65-2.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 5392-10-9, formula is C9H9BrO3, Name is 2-Bromo-4,5-dimethoxybenzaldehyde. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Quality Control of 5392-10-9.

Yu, Bangkui;Yu, Houjian;Huang, Hanmin research published 《 Palladium-Catalyzed Chemoselective Aminomethylative Cyclization and Aromatizing Allylic Amination: Access to Functionalized Naphthalenes》, the research content is summarized as follows. A palladium-catalyzed chemoselective aminomethylative cyclization and aromatizing allylic amination of enyne-tethered allylic alcs. with aminals is described. Under the reaction conditions, the cationic vinyl allylpalladium species undergoes selective migratory insertion of alkenes rather than reductive elimination with nucleophiles. This strategy provides an efficient and unique approach to the construction of functionalized naphthalenes, which are important building blocks in synthetic organic chem. Mechanistic studies have revealed that the selective sequential migratory insertion of enyne and alkene is crucial for the cyclization.

5392-10-9, 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., Quality Control of 5392-10-9

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. 823-78-9, formula is C7H6Br2, Name is 1-Bromo-3-(bromomethyl)benzene. Organic compounds having carbon bonded to bromine are called organic bromides. Related Products of 823-78-9.

Yang, Peng;Sun, Yaxin;Fu, Kaiyue;Zhang, Li;Yang, Guang;Yue, Jieyu;Ma, Yu;Zhou, Jianrong Steve;Tang, Bo research published 《 Enantioselective Synthesis of Chiral Carboxylic Acids from Alkynes and Formic Acid by Nickel-Catalyzed Cascade Reactions: Facile Synthesis of Profens》, the research content is summarized as follows. A stereoselective conversion of terminal alkynes to α-chiral carboxylic acids RCHMeCO₂H [R = Ph, 3-thienyl, Bn, etc.; stereo = R or S] using a nickel-catalyzed domino hydrocarboxylation-transfer hydrogenation reaction was reported. A simple nickel/BenzP* catalyst displayed high activity in both steps of regioselective hydrocarboxylation of alkynes and subsequent asym. transfer hydrogenation. The reaction was successfully applied in enantioselective preparation of three nonsteroidal anti-inflammatory profens (>90% ees) and the chiral fragment of AZD2716.

Related Products 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

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. 244205-40-1, formula is C6H6BBrO2, Name is (2-Bromophenyl)boronic acid, Name: (2-Bromophenyl)boronic acid

Yang, Peng;Wang, Qiang;Cui, Bing-Hui;Zhang, Xiao-Dong;Liu, Hang;Zhang, Yue-Yuan;Liu, Jia-Liang;Huang, Wen-Yu;Liang, Ren-Xiao;Jia, Yi-Xia research published 《 Enantioselective Dearomative [3 + 2] Umpolung Annulation of N-Heteroarenes with Alkynes》, the research content is summarized as follows. Enantioselective [3 + 2] annulation of N-heteroarenes such as 2-(2-bromophenyl)quinoline with alkynes R¹CCR² [R¹ = Me, Ph, benzyloxymethyl, (thiophen-2-ylmethoxy)methyl, etc.; R² = Me, Ph, benzyloxymethyl, (thiophen-2-ylmethoxy)methyl, etc.] has been developed via a cobalt-catalyzed dearomative umpolung strategy in the presence of chiral ligand e.g., [(2R,3R)-3-(diphenylphosphanyl)butan-2-yl]diphenylphosphane and reducing reagent. A variety of electron-deficient N-heteroarenes e.g., 2-(2-bromophenyl)quinoline and internal or terminal alkynes are employed in this reaction, showing a broad substrate scope and good functionality tolerance. Annulation of electron-rich indoles I (R = H, 5-Cl) with alkynes is also developed. This protocol provides a straightforward access to a variety of N-spiroheterocyclic mols. such as II and in excellent enantioselectivities (76 examples, up to 99% ee).

Name: (2-Bromophenyl)boronic acid, 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. Reference of 244205-40-1

Yang, Qi;Wu, Run-Shi;Wu, Ke-Xin;Gu, Ying-Chun;Yu, Ya-Qin;Xu, Da-Zhen research published 《 Direct synthesis of completely unsymmetrical triarylmethanes via Fe(III) salt-mediated in situ o-quinone methides process》, the research content is summarized as follows. An efficient and straightforward synthetic approach to completely unsym. triarylmethanes through in situ-generated o-quinone methides from readily available starting materials has been successfully developed. In the presence of an Fe(III) salt, three different aromatic rings, including salicylaldehydes, arylboronic acids, and arenes, were incorporated into one mol. in a single step under the base/ligand-free conditions. The related reactions show high chemoselectivity and afford a variety of completely unsym. triarylmethane products in good to excellent yields.

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

Yang, Quanlu;Yang, Fawang;Zhang, Ying;Hou, Juanjuan;Li, Jiankun;Cheng, Jinkui;Wu, Shang;Zhan, Huiying;Zhang, Xinghui;Shi, Haixiong research published 《 Anchored PdCl₂ on fish scale: an efficient and recyclable catalyst for Suzuki coupling reaction in aqueous media》, the research content is summarized as follows. PdCl₂ anchored on fish scale (FS) complex were intended to a heterogeneous catalyst for ligand-free Suzuki coupling reaction in aqueous media. The catalyst FS-PdCl₂ was characterized by FT-IR, powder XRD, XPS and SEM. FS-PdCl₂ complex was successfully implemented for Suzuki coupling reactions of various halogenated aromatic compounds with arylboronic acid to provide the corresponding biaryl compounds Ar-Ar¹ [Ar = Ph, 3-thienyl, 4-ClC₆H₄, etc.; Ar¹ = Ph, 4-MeSC₆H₄, 1-naphthyl, etc.] under environmentally friendly conditions (40°C, water solvent). Moreover, the efficient catalyst showed excellent stability and recyclability without any decrease after 8 times consecutive reuse.

Computed Properties 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