Tag: M.W=150-200

Wang, Guanghui published the artcileDouble N,B-Type Bidentate Boryl Ligands Enabling a Highly Active Iridium Catalyst for C-H Borylation, Name: 1-Bromo-4-fluoro-2-methylbenzene, the main research area is crystal structure bidentate pyridinylbenzodiazaborole iridium preparation catalyst borylation aryl; mol structure bidentate pyridinylbenzodiazaborole iridium preparation catalyst borylation aryl; pyridinylaminoborane ligand bidentate iridium preparation structure catalyst borylation aromatic.

Boryl ligands hold promise in catalysis due to their very high electron-donating property. In this communication double N,B-type boryl anions were designed as bidentate ligands to promote an sp2 C-H borylation reaction. A sym. pyridine-containing tetraaminodiborane(4) compound was readily prepared as the ligand precursor that could be used, in combination with [Ir(OMe)(COD)]2, to in situ generate a highly active catalyst for a broad range of (hetero)arene substrates including highly electron-rich and/or sterically hindered ones. This work provides the 1st example of a bidentate boryl ligand in supporting homogeneous organometallic catalysis.

Journal of the American Chemical Society published new progress about Boronic acids, esters Role: BYP (Byproduct), RCT (Reactant), SPN (Synthetic Preparation), PREP (Preparation), RACT (Reactant or Reagent). 452-63-1 belongs to class bromides-buliding-blocks, name is 1-Bromo-4-fluoro-2-methylbenzene, and the molecular formula is C7H6BrF, Name: 1-Bromo-4-fluoro-2-methylbenzene.

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. 629-04-9, formula is C7H15Br, Name is 1-Bromoheptane, Safety of 1-Bromoheptane

Zielinski, Dawid;Szpecht, Andrea;Hinc, Paulina;Maciejewski, Hieronim;Smiglak, Marcin research published 《 Mono N-Alkylated DABCO-Based Ionic Liquids and Their Application as Latent Curing Agents for Epoxy Resins》, the research content is summarized as follows. Research on ionic liquids is constantly providing information on their new and more advanced applications. Undoubtedly, the use of latent curing agents for epoxy resins is one of the most interesting applications of this group of compounds In this work, a detailed description of the synthesis and physicochem. studies of DABCO-based (1,4-diazabicylo[2.2.2]octane) ionic liquids is presented. Their most valuable feature is that they can be latent curing agents for polymerization of epoxy resins, which in turn can be used, when combined with fibers, as composites with special, new properties. The research includes detailed discussion of synthesis of new DABCO-ILs, focusing on obtaining pure compounds and expanding current knowledge on the subject. Thermal (DSC) and chromatog. (IC) properties have been discussed for all presented salts. Furthermore, ionic liquids with dicyanamide and triflate anion have demonstrated the ability to initiate polymerization of epoxy resins. Subsequently, all mixtures were cured into cubical shape and were subjected to the Shore hardness test (SHT). The main advantages of the obtained ILs are (i) the ability to store ionic liquids/epoxy resin mixture for prolonged periods of time without deterioration of curing properties and (ii) a significantly lower quantity of ionic liquids used in the process of curing epoxy resins.

629-04-9, 1-Bromoheptane is a useful research compound. Its molecular formula is C7H15Br and its molecular weight is 179.1 g/mol. The purity is usually 95%.
1-Bromoheptane is a reagent that is used for the preparation of alkylthiophienylzinc chloride.
1-Bromoheptane is a reactive compound that is used in the preparation of p-hydroxybenzoic acid, which is an intermediate in the synthesis of many natural compounds. 1-Bromoheptane has been shown to have biological properties and to inhibit mitochondrial membrane potential. It also causes cell lysis and hepatic steatosis in mice. This compound has been shown to inhibit the activity of enzymes such as acetylcholinesterase, butyrylcholinesterase, and carboxylesterase. 1-Bromoheptane can be used as a model for studying the effects on congestive heart failure by increasing cardiac workloads or decreasing myocardial contractility., Safety of 1-Bromoheptane

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organobromine compounds, also called organobromides, are organic compounds that contain carbon bonded to bromine. 6911-87-1, formula is C7H8BrN, The most pervasive is the naturally produced bromomethane. Reference of 6911-87-1

Zou, Qizhuang;Liu, Fei;Zhao, Tianxiang;Hu, Xingbang research published 《 Reductive amination of ketones/aldehydes with amines using BH₃N(C₂H₅)₃ as a reductant》, the research content is summarized as follows. A reductive amination of ketones/aldehydes with amines using BH₃N(C₂H₅)₃ as a catalyst and a reductant under mild conditions afforded various tertiary and secondary amines R¹R²NR³ [R¹ = Et, Ph, Bn, etc.; R² = H, Me, Et, etc.; R³ = Et, n-pentyl, cyclohexyl, etc.] in excellent yields. A mechanistic study indicated that BH₃N(C₂H₅)₃ played a dual function role of promoting imine and iminium formation and served as a reductant in reductive amination.

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., Reference of 6911-87-1

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 5445-17-0, formula is C4H7BrO2, Name is Methyl 2-bromopropanoate. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Recommanded Product: Methyl 2-bromopropanoate.

Zhou, Peng research published 《 Polyacrylic acid-b-polyptyrene covered Ni/Fe nanoparticles to remove 1,1,1-trichloroethane in water》, the research content is summarized as follows. A new material, polyacrylic acid-b-polyptyrene (PAA-b-PS) covered Ni/Fe nanoparticles (PAA-b-PS-nZVI-Ni), was developed and evaluated for the selective dechlorination of 1,1,1-trichloroethane (1,1,1-TCA) in the presence of potential interferents. The average size of the PAA-b-PS coated Fe/Ni bimetallic nanoparticles was approx. 50 nm, which resulted from agglomeration prevention by PAA-b-PS. The removal efficiency of 1,1,1-TCA by an optimal dose with a 1.0 g/L Fe/Ni (Ni/Fe = 2 wt%) and 0.5 g/L PAA-b-PS-coated concentration was higher (87.5%) than that of bare Fe/Ni (60%). The pseudo-first-order rate constant (K_obs) of 1,1,1-TCA removal by PAA-b-PS-nZVI-Ni was 0.0142 min^-1 within 240 min. Comparatively, the K_obs values of 1,1,1-TCA removal by other materials (Fe, pure bimetallic Fe/Ni, PAA-b-PS-Fe) were only 0.003, 0.0052 and 0.0103 min^-1, resp. The 1,1,1-TCA removal efficacy by PAA-b-PS-nZVI-Ni showed no obvious gap regardless of pH or various common inorganic anions (NO₃^–, HCO₃^– and SO₄^2-) at different concentrations However, humic acid (HA) had great influence on the degradation of 1,1,1-TCA. In conclusion, PAA-b-PS-covered Ni/Fe nanoparticles with its selectivity high effectiveness could be used as one remedial agent for the degradation of 1,1,1-TCA in water.

5445-17-0, Methyl 2-bromopropionate, also known as Methyl 2-bromopropionate, is a useful research compound. Its molecular formula is C4H7BrO2 and its molecular weight is 167 g/mol. The purity is usually 95%.
Methyl 2-bromopropionate is used in the synthesis of poly(ADP-Ribose)polymerase inhibitors derived from benzoxazin-3-one. Also used in the synthesis of 5-HT2C antagonists affecting serotonin levels.
Methyl 2-bromopropanoate is a chemical compound that can be synthesized in an asymmetric manner. The reaction of methyl 2-bromopropanoate with hydrochloric acid gives the corresponding carboxylic acid, methyl propanoate, and hydrogen bromide in a 1:1 ratio. It has been shown that methyl 2-bromopropanoate is a potential catalyst for the reduction of chloride to chloride ion via the borohydride reduction method. Methyl 2-bromopropanoate has also been used as a model system for studying halides and copper complexes. Magnetic resonance spectroscopy studies have revealed that this chemical compound has a high redox potential and kinetic properties., Recommanded Product: Methyl 2-bromopropanoate

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. 4897-84-1, formula is C5H9BrO2, Name is Methyl 4-bromobutanoate. Organic compounds having carbon bonded to bromine are called organic bromides. Formula: C5H9BrO2.

Zhu, Bin-Bin;Ye, Wen-Bo;He, Zhi-Tao;Zhang, Shu-Sheng;Feng, Chen-Guo;Lin, Guo-Qiang research published 《 Regioselective Tandem C-H Alkylation/Coupling Reaction of ortho-Iodophenylethylenes via C,C-Pallada(II)cycles》, the research content is summarized as follows. Five-membered C,C-pallada(II)cycles are a unique class of diorganopalladium species with favorable stability and an electron-rich nature, leading to efficient sequential reactions with diverse electrophiles and nucleophiles. Specifically, the development of aryl-alkenyl-palladacycle-based transformations could provide an attractive approach with regio- and stereocontrol for the construction of multifunctionalized arylethylenes. However, currently, the C,C-pallada(II)cycle formation relies on a rigid skeleton or steric congestion in the backbone to promote cyclopalladation, and the formation of aryl-alkenyl-palladacycle without an α-substituent has not been achieved. Furthermore, reactions that could discriminate between the two sp² carbon centers of such C(sp²),C(sp²)-palladacycle remain elusive. Herein, a regioselective three-component tandem alkylation/coupling reaction applicable for a variety of non-, α-, or β-substituted and α,β-disubstituted ortho-iodophenylethylenes is reported. Electron-rich 2-pyridone ligands are employed to enable the cyclopalladation process leading to aryl-alkenyl-palladacycle intermediates, of which the two C-Pd bonds are discriminated toward alkylation by their inherent steric and electronic differences. Good linear free-energy relationships between regio-/chemoselectivities and Hammett σ values are observed

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., Formula: C5H9BrO2

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic compounds having carbon bonded to bromine are called organic bromides. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine. Depending on the type of carbon to which the bromine is bonded, organic bromide could be alkyl, alkenyl, alkynyl, or aryl. Product Details of C6H7BrN2.

Zhu, Huajian;Cai, Yunrui;Ma, Shijia;Futamura, Yushi;Li, Jinbiao;Zhong, Wen;Zhang, Xiangnan;Osada, Hiroyuki;Zou, Hongbin research published 《 Privileged Biorenewable Secologanin-Based Diversity-Oriented Synthesis for Pseudo-Natural Alkaloids: Uncovering Novel Neuroprotective and Antimalarial Frameworks》, the research content is summarized as follows. Inspired by secologanin’s highly congested functional groups, a secologanin-based diversity-oriented synthesis (DOS) strategy for novel pseudo-natural alkaloids was developed. All the reactive units of secologanin were involved in these operation simplicity protocols under mild reaction conditions, including the one-step enantioselective transformation of exocyclic C8, C8/C11 and C8/C9/C10 as well as the chemoenzymic manipulation of endocyclic C2/C6 via the attack by various nucleophiles. A combinatory scenario of the aforementioned reactions further provided diverse polycyclic products with multiple chiral centers. Preliminary activity screening of these newly constructed mols. led to the discovery of antimalarial and highly potent neuroprotective skeletons. The application of green biorenewable secologanin in diversity-oriented pseudo-natural monoterpenoid alkaloid synthesis might encourage the pursuit of valuable bioactive frameworks.

Product Details of C6H7BrN2, 4-Bromo-1,2-diaminobenzene can be obtained from 1,2-diaminobenzene via acetylation followed by bromination and alkaline hydrolysis.
4-Bromobenzene-1,2-diamine, also known as 4-Bromobenzene-1,2-diamine, is a useful research compound. Its molecular formula is C6H7BrN2 and its molecular weight is 187.04 g/mol. The purity is usually 95%.
4-Bromo-1,2-diaminobenzene is a dye that is used in diagnostic
procedures to detect the presence of amide groups. 4-Bromo-1,2-diaminobenzene can be used as an inhibitor for cationic polymerization reactions. It also has tuberculostatic activity and inhibits the growth of Mycobacterium tuberculosis. This compound reacts with aniline to form a benzimidazole derivative that contains a reactive amine group. The reaction between this amine group and different electrophiles generates benzimidazole compounds with different properties that are useful in nucleophilic attack reactions. The reaction between 4-bromo-1,2-diaminobenzene and methyl ethyl sulfide produces a luminescent probe that can be used to detect hydrogen bonds., 1575-37-7.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 4224-70-8, formula is C6H11BrO2, Name is 6-Bromohexanoic acid. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Formula: C6H11BrO2.

Zhu, Nanhang;Zhang, Yujia;Cheng, Jia;Mao, Yanchao;Kang, Ke;Li, Guohao;Yi, Qiangying;Wu, Yao research published 《 Immuno-affinitive supramolecular magnetic nanoparticles incorporating cucurbit[8]uril-mediated ternary host-guest complexation structures for high-efficient small extracellular vesicle enrichment》, the research content is summarized as follows. Enriching small extracellular vesicles (sEVs) with undamaged structure and function is a pivotal step for further applications in biol. and clin. fields. It has prompted researchers to explore a carrier material that can efficiently capture sEVs while also gently release the captured sEVs. Here, 1-adamantylamine (1-ADA) responsive immuno-affinitive supramol. magnetic nanoparticles (ISM-NPs) incorporating ternary host-guest complexation structures mediated by CB[8] were proposed to achieved the goal. In particular, the ternary host-guest complexation was constructed by the host mol. (cucurbit[8]uril, CB[8]) mediated assembly of two guest mols. (naphthol and bipyridine), and served as a cleavable bridge to connect the magnetic core and peripheral antibody. These constructed ISM-NPs performed well in the applications of capturing sEVs with a high capture efficiency of 85.5%. Further, the CB[8]-mediated ternary host-guest complexation structures can be disassembled with addition of the 1-ADA. Thus, the sEVs recognized by the anti-CD63 were released competitively, with a decent release efficiency more than 82%. The released sEVs kept intact morphol. and exhibited appropriate size distribution and concentration This supramol. magnetic system, with 1-ADA responsive ternary host-guest complexation structures, may contribute to efficient enrichment of any other biomarkers, likely cells, proteins, peptides, etc.

4224-70-8, 6-bromohexanoic acid is an organobromine compound comprising hexanoic acid having a bromo substituent at the 6-position. It derives from a hexanoic acid.
6-Bromohexanoic acid is a useful research compound. Its molecular formula is C6H11BrO2 and its molecular weight is 195.05 g/mol. The purity is usually 95%.
6-Bromohexanoic acid is useful for the preparation of anti-CTLA4 compounds as antitumor agents.
6-Bromohexanoic acid is a fatty acid that has been shown to be an effective agent for the treatment of cancer. It is used in gene therapy to inhibit the growth of cancer cells by binding to and then activating transcription factors. 6-Bromohexanoic acid can also be used as a chemotherapeutic agent and has been shown to cause apoptosis in monoclonal antibody-treated cells. 6-Bromohexanoic acid has pharmacokinetic properties that are similar to those of other fatty acids. The reaction solution was found to have high chemical stability, which may be due to the presence of nitrogen atoms. This reaction solution was found to adsorb onto the surface of monoclonal antibodies and cell culture, altering their properties., Formula: C6H11BrO2

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. Category: bromides-buliding-blocks.

Zhu, Tianbao;Chen, Xi;Li, Chenglan;Tu, Jie;Liu, Na;Xu, Defeng;Sheng, Chunquan research published 《 Lanosterol 14α-demethylase (CYP51)/histone deacetylase (HDAC) dual inhibitors for treatment of Candida tropicalis and Cryptococcus neoformans infections》, the research content is summarized as follows. Invasive fungal infections remain a challenge due to lack of effective antifungal agents and serious drug resistance. Discovery of antifungal agents with novel antifungal mechanism is important and urgent. Previously, we designed the first CYP51/HDAC dual inhibitors with potent activity against resistant Candida albicans infections. To better understand the antifungal spectrum and synergistic mechanism, herein new CYP51/HDAC dual inhibitors were designed which showed potent in vitro and in vivo antifungal activity against C. neoformans and C. tropicalis infections. Antifungal mechanism studies revealed that the CYP51/HDAC dual inhibitors acted by inhibiting various virulence factors of C. tropicalis and C. neoformans and down-regulating resistance-associated genes. This study highlights the potential of CYP51/HDAC dual inhibitors as a promising strategy for the discovery of novel broad-spectrum antifungal agents.

Category: bromides-buliding-blocks, 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., 4897-84-1.

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. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine. Organic compounds having carbon bonded to bromine are called organic bromides. Recommanded Product: 4-Bromobenzene-1,2-diamine.

Zhu, Xiaolong;Jiang, Min;Li, Xuan;Zhu, Enjie;Deng, Qirong;Song, Xiuyan;Lv, Jian;Yang, Daoshan research published 《 Alkylsulfonium salts for the photochemical desulfurative functionalization of heteroarenes》, the research content is summarized as follows. An efficient, metal-free organic photoredox-catalyzed direct alkylation of heteroarenes ArH (Ar = N-methyl-2-oxoquinoxalin-3-yl, 3,6-dichloropyridazin-4-yl, 2-oxoquinoxalin-3-yl, etc.) via a desulfurization strategy using alkylsulfonium salts I (R = Ph, 1-naphthyl, 2-thienyl, etc.; R¹ = H, Me; X = PF₆, BF₄) as alkylation reagents under mild conditions has been described for the first time. The inexpensive and efficient organic photoredox-catalyzed method offers a new and useful strategy for constructing various biol. interesting heteroarenes ArCHRR¹ in the fields of synthetic and pharmaceutical chem., and extends the scope of the still limited sulfonium salt photochem.

Recommanded Product: 4-Bromobenzene-1,2-diamine, 4-Bromo-1,2-diaminobenzene can be obtained from 1,2-diaminobenzene via acetylation followed by bromination and alkaline hydrolysis.
4-Bromobenzene-1,2-diamine, also known as 4-Bromobenzene-1,2-diamine, is a useful research compound. Its molecular formula is C6H7BrN2 and its molecular weight is 187.04 g/mol. The purity is usually 95%.
4-Bromo-1,2-diaminobenzene is a dye that is used in diagnostic
procedures to detect the presence of amide groups. 4-Bromo-1,2-diaminobenzene can be used as an inhibitor for cationic polymerization reactions. It also has tuberculostatic activity and inhibits the growth of Mycobacterium tuberculosis. This compound reacts with aniline to form a benzimidazole derivative that contains a reactive amine group. The reaction between this amine group and different electrophiles generates benzimidazole compounds with different properties that are useful in nucleophilic attack reactions. The reaction between 4-bromo-1,2-diaminobenzene and methyl ethyl sulfide produces a luminescent probe that can be used to detect hydrogen bonds., 1575-37-7.

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. 4224-70-8, formula is C6H11BrO2, Name is 6-Bromohexanoic acid, HPLC of Formula: 4224-70-8

Zhu, Xiaotao;Jian, Wujun;Huang, Meirong;Li, Daliang;Li, Yajun;Zhang, Xinhao;Bao, Hongli research published 《 Asymmetric radical carboesterification of dienes》, the research content is summarized as follows. A copper-catalyzed regioselective and enantioselective carboesterification of substituted dienes using alkyl diacyl peroxides as the source of both the carbon and oxygen substituents. The participation of external acids in this reaction substantially extended its applicability and leads to structurally diverse allylic ester products. This work represented the advance in the key elementary reaction of intermol. enantioselective construction of C-O bond on open-chain hydrocarbon radicals and may lead to the discovery of other asym. radical reactions.

HPLC of Formula: 4224-70-8, 6-bromohexanoic acid is an organobromine compound comprising hexanoic acid having a bromo substituent at the 6-position. It derives from a hexanoic acid.
6-Bromohexanoic acid is a useful research compound. Its molecular formula is C6H11BrO2 and its molecular weight is 195.05 g/mol. The purity is usually 95%.
6-Bromohexanoic acid is useful for the preparation of anti-CTLA4 compounds as antitumor agents.
6-Bromohexanoic acid is a fatty acid that has been shown to be an effective agent for the treatment of cancer. It is used in gene therapy to inhibit the growth of cancer cells by binding to and then activating transcription factors. 6-Bromohexanoic acid can also be used as a chemotherapeutic agent and has been shown to cause apoptosis in monoclonal antibody-treated cells. 6-Bromohexanoic acid has pharmacokinetic properties that are similar to those of other fatty acids. The reaction solution was found to have high chemical stability, which may be due to the presence of nitrogen atoms. This reaction solution was found to adsorb onto the surface of monoclonal antibodies and cell culture, altering their properties., 4224-70-8.

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary