Tag: M.W=200-250

Organic compounds having carbon bonded to bromine are called organic bromides. 20469-65-2, formula is C8H9BrO2, Name is 1-Bromo-3,5-dimethoxybenzene. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Safety of 1-Bromo-3,5-dimethoxybenzene.

Hethcox, J. Caleb;Sifri, Renee J. research published 《 Air-Tolerant Nickel-Catalyzed Cyanation of (Hetero)aryl Halides Enabled by Polymethylhydrosiloxane, a Green Reductant》, the research content is summarized as follows. An air-tolerant nickel-catalyzed cyanation of aryl bromides ArBr (Ar = 3,5-difluorophenyl, 2-naphthyl, pyridin-3-yl, etc.) is reported. The reaction uses a NiCl₂/Xantphos catalyst in combination with substoichiometric quantities of zinc cyanide and polymethylhydrosiloxane. This silane is a green, homogeneous alternative to the traditional, insoluble solid reductant zinc and renders the reaction tolerant to air. The reaction can be performed under an air atm., obviating the need for degassing, a glovebox, or Schlenk techniques. The reaction scope is broad, proceeding in good yields with a variety of (hetero)arenes.

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., Safety of 1-Bromo-3,5-dimethoxybenzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic compounds having carbon bonded to bromine are called organic bromides. 20469-65-2, formula is C8H9BrO2, Name is 1-Bromo-3,5-dimethoxybenzene. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Related Products of 20469-65-2.

Hirano, Koki;Yasuda, Akira;Sasamori, Takahiro;Shioji, Kosei;Okuma, Kentaro;Nagahora, Noriyoshi research published 《 The electronic structure of thioxanthylium scaffolds》, the research content is summarized as follows. A new series of thioxanthylium trifluoromethanesulfonates I (R = H; R¹ = H, Cl, Me, OMe; R² = H, OMe; R³ = H; RR¹ = -CH=CH-CH=CH-; R²R³ = -CH=CH-CH=CH-) has been synthesized via a trifluoromethanesulfonic-acid-induced cyclization of thioether precursors II (Ar = 4-chlorophenyl, naphthalen-1-yl, pyren-1-yl, etc.). The electronic structure of these thioxanthylium salts was determined by UV-vis absorption spectroscopy and theor. investigated by d. functional theory calculations

Related Products 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

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., Recommanded Product: 1-Bromo-3,5-dimethoxybenzene.

Ho, Thanh C.;Tius, Marcus A.;Nikas, Spyros P.;Tran, Ngan K.;Tong, Fei;Zhou, Han;Zvonok, Nikolai;Makriyannis, Alexandros research published 《 Oxa-adamantyl cannabinoids》, the research content is summarized as follows. As a continuation of earlier work on classical cannabinoids bearing bulky side chains we report here the design, synthesis, and biol. evaluation of 3′-functionalized oxa-adamantyl cannabinoids as a novel class of cannabinergic ligands. Key synthetic steps involve nucleophilic addition/transannular cyclization of aryllithium to epoxyketone in the presence of cerium chloride and stereoselective construction of the tricyclic cannabinoid nucleus. The synthesis of the oxa-adamantyl cannabinoids is convenient, and amenable to scale up allowing the preparation of these analogs in sufficient quantities for detailed in vitro evaluation. The novel oxa-adamantyl cannabinoids reported here were found to be high affinity ligands for the CB1 and CB2 cannabinoid receptors. In the cyclase assay these compounds were found to behave as potent and efficacious CB1 receptor agonists. Isothiocyanate analog AM10504 (I) is capable of irreversibly labeling both the CB1 and CB2 receptors.

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., Recommanded Product: 1-Bromo-3,5-dimethoxybenzene

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 2576-47-8, formula is C2H7Br2N, The most pervasive is the naturally produced bromomethane. Synthetic Route of 2576-47-8

Ho, Vuong Thi Thanh Xuan;Park, Haebeen;An, Seeun;Kim, Gun;Ly, Nguyen Hoang;Lee, So Yeong;Choo, Jaebum;Jung, Hyo Sung;Joo, Sang-Woo research published 《 Coumarin-lipoic acid conjugates on silver nanoparticle-supported nanopipettes for in situ dual-mode monitoring of intracellular Cu(II) and potential chemodynamic therapy applications》, the research content is summarized as follows. Intracellular Cu(II) in the human body is essential to many physiol. functions, and its disruption is connected to several diseases. Synthetic coumarin-lipoic acid (Cou-LA) conjugate-functionalized silver-nanoparticles decorated on nanopipettes (CSNs) were fabricated herein for the determination of intracellular Cu(II) via in situ dual Raman/fluorescence spectroscopy. The CSNs selectively sensed Cu(II) over other metal ions to induce enhanced Raman intensities and fluorescence quenching. The determination of Cu(II) in single HeLa cells was achieved in accordance with changes in the ratio of Raman intensities at 500 and 597 cm^-1 and fluorescence at 469 nm, which was ascribed to the capturing of Cu(II) by the CSNs. The Raman signals exhibited a good linear relationship with Cu(II) concentration from 10 to 75 μM with R² = 0.956. The calibration curve indicated a local Cu(II) concentration of ∼42.6 ± 8.6 μM in a single HeLa cell after pretreatment with 100 μM Cu(II) for 1 h. Cou-LA exhibited negligible cytotoxicity in both normoxic and hypoxic HeLa cells. However, a significant reduction in cell viability occurred with the Cu(II)-Cou-LA complex. This cytotoxicity was attributed to the generation of reactive oxygen species via a Cu-catalyzed Fenton-like process in tumor microenvironments and was found to be applicable to chemodynamic therapy (CDT). The system fabricated in this study represents a novel strategy for intracellular dual-mode Cu(II) detection and CDT applications in cancer research.

Synthetic Route of 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., 2576-47-8.

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. 402-49-3, formula is C8H6BrF3, Name is 1-(Bromomethyl)-4-(trifluoromethyl)benzene, Recommanded Product: 1-(Bromomethyl)-4-(trifluoromethyl)benzene

Hong, Feng-Lin;Shi, Chong-Yang;Hong, Pan;Zhai, Tong-Yi;Zhu, Xin-Qi;Lu, Xin;Ye, Long-Wu research published 《 Copper-Catalyzed Asymmetric Diyne Cyclization via [1,2]-Stevens-Type Rearrangement for the Synthesis of Chiral Chromeno[3,4-c]pyrroles》, the research content is summarized as follows. Here, authors report a copper-catalyzed asym. cascade cyclization/[1,2]-Stevens-type rearrangement via a non-diazo approach, leading to the practical and atom-economic assembly of various valuable chiral chromeno[3,4-c]pyrroles bearing a quaternary carbon stereocenter in generally moderate to good yields with wide substrate scope and excellent enantioselectivities (up to 99% ee). Importantly, this protocol not only represents the first example of catalytic asym. [1,2]-Stevens-type rearrangement based on alkynes but also constitutes the first asym. formal carbene insertion into the Si-O bond.

Recommanded Product: 1-(Bromomethyl)-4-(trifluoromethyl)benzene, 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., 402-49-3.

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. Application of C6H6BBrO2.

Hong, Seung Youn;Radosevich, Alexander T. research published 《 Chemoselective Primary Amination of Aryl Boronic Acids by P^III/P^V=O-Catalysis: Synthetic Capture of the Transient Nef Intermediate HNO》, the research content is summarized as follows. A catalytic approach to intercept the transient HNO for a chemoselective primary amination of arylboronic acids was reported. A phosphetane-based catalyst operating within P^III/P^V=O redox cycling was shown to capture HNO, generated in situ by Nef decomposition of 2-nitropropane, to selectively install the primary amino group at aryl Csp² centers. The method furnished versatile primary arylamines from arylboronic acid substrates with the preservation of otherwise reactive functional groups.

Application of 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. 5392-10-9, formula is C9H9BrO3, The most pervasive is the naturally produced bromomethane. Product Details of C9H9BrO3

Honnanayakanavar, Jyoti M.;Nanubolu, Jagadeesh Babu;Suresh, Surisetti research published 《 Tandem copper catalyzed regioselective N-arylation-amidation: synthesis of angularly fused dihydroimidazoquinazolinones and the anticancer agent TIC10/ONC201》, the research content is summarized as follows. Herein, a copper-catalyzed tandem reaction of 2-aminoimidazolines I (R = n-Bu, Ph, furan-2-ylmethyl, pyridin-4-ylmethyl, etc.) and ortho-halo(hetero)aryl carboxylic acids R¹C(O)OH (R¹ = 2-bromophenyl, 2-bromo-4,5-difluorophenyl, 2-bromopyridin-3-yl, 4-chloropyridin-3-yl, etc.) that causes the regioselective formation of angularly fused tricyclic 1,2-dihydroimidazo[1,2-a]quinazolin-5(4H)-one derivs II (R² = H, OMe, F; R³ = H, OMe, Cl, Br, F, NO₂; R⁴ = H, F), III and IV was presented. The reaction involved in the construction of the core six-membered pyrimidone moiety proceeded via regioselective N-arylation-condensation. The presented protocol has been successfully applied to accomplish the total synthesis of TIC10/ONC201 V, which is an active angular isomer acting as a tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL): a sought after anticancer clin. agent.

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., Product Details of C9H9BrO3

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, Name: 3-Bromobenzoic acid

Hoque, Emdadul Md;Bisht, Ranjana;Unnikrishnan, Anju;Dey, Sayan;Mahamudul Hassan, Mirja Md;Guria, Saikat;Rai, Rama Nand;Sunoj, Raghavan B.;Chattopadhyay, Buddhadeb research published 《 Iridium-Catalyzed Ligand-Controlled Remote para-Selective C-H Activation and Borylation of Twisted Aromatic Amides》, the research content is summarized as follows. A method of para-selective borylation of fully twisted aromatic amides ArCONBoc₂ is described, yielding boronamides 4-pinBC₆H_nX_4-nCONBoc₂ (X = alkyl, alkoxy, aryl, halo, CN). The borylation proceeded via an unprecedented substrate-ligand distortion between the twisted aromatic amides and a newly designed ligand framework, 4,5-diaza-9H-fluorene (defa) that is different from the traditionally used ligand (dtbpy) for the C-H borylation reactions. The designed ligand defa has led to the development of a new type of catalytic system that shows excellent para selectivity for a range of aromatic amides. Moreover, the designed ligand has shown excellent reactivity and selectivity for a range of heterocyclic aromatic amides. The identification of key transition states and intermediates using the DFT computations associated with the three regio-isomeric pathways revealed that the most efficient catalytic pathway with the defa ligand leads to the para borylation while in the case of bpy the borylation at the para and meta sites compete.

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

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., SDS of cas: 585-76-2.

Hoque, Emdadul Md;Hassan, Mirja Mahamudul Md;Chattopadhyay, Buddhadeb research published 《 Remarkably Efficient Iridium Catalysts for Directed C(sp²)-H and C(sp³)-H Borylation of Diverse Classes of Substrates》, the research content is summarized as follows. Here we describe the discovery of a new class of C-H borylation catalysts and their use for regioselective C-H borylation of aromatic, heteroaromatic, and aliphatic systems. The new catalysts have Ir-C(thienyl) or Ir-C(furyl) anionic ligands instead of the diamine-type neutral chelating ligands used in the standard C-H borylation conditions. It is reported that the employment of these newly discovered catalysts show excellent reactivity and ortho-selectivity for diverse classes of aromatic substrates with high isolated yields. Moreover, the catalysts proved to be efficient for a wide number of aliphatic substrates for selective C(sp³)-H bond borylations. Heterocyclic mols. are selectively borylated using the inherently elevated reactivity of the C-H bonds. A number of late-stage C-H functionalization have been described using the same catalysts. Furthermore, we show that one of the catalysts could be used even in open air for the C(sp²)-H and C(sp³)-H borylations enabling the method more general. Preliminary mechanistic studies suggest that the active catalytic intermediate is the Ir(bis)boryl complex, and the attached ligand acts as bidentate ligand. Collectively, this study underlines the discovery of new class of C-H borylation catalysts that should find wide application in the context of C-H functionalization chem.

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. , SDS of cas: 585-76-2

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. 20469-65-2, formula is C8H9BrO2, Name is 1-Bromo-3,5-dimethoxybenzene. Organic compounds having carbon bonded to bromine are called organic bromides. COA of Formula: C8H9BrO2.

Hor, Seanghai;Oyama, Kin-ichi;Koga, Nobuaki;Tsukamoto, Masaki research published 《 Synthesis and characterization of methoxybenzene-linked polyimides formed by 1,4-addition to bismaleimides》, the research content is summarized as follows. Methoxybenzene-linked polyimides were synthesized by a trifluoromethanesulfonic acid (TfOH)-catalyzed 1,4-addition (Michael addition) reaction. Newly synthesized 1,3-bis(3,5-dimethoxyphenoxy)propane and known 5,5′-oxybis(1,3-dimethoxybenzene) as nucleophilic monomers were reacted with several bismaleimides in the presence of a catalytic amount of TfOH in m-cresol. Use of 1,3-bis(3,5-dimethoxyphenoxy)propane afforded polyimides with number average mol. weights (Mn)s of 8000-15000. However, polyimides with Mn of 4000 or less were obtained when 5,5′-oxybis(1,3-dimethoxybenzene) was employed as a monomer. The synthesized polyimides showed good thermostability as judged by 10% weight loss temperatures between 417 and 441°. Their glass transition temperatures were around 200°. These polymers featured a wide range of solubility in organic solvents such as m-cresol, DMF, pyridine, and chloroform.

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., COA of Formula: C8H9BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary