Month: November 2022

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Category: bromides-buliding-blocks.

Vessally, Esmail;Monfared, Aazam;Eskandari, Zahra;Abdoli, Morteza;Hosseinian, Akram research published 《 A new strategy for the synthesis of 2-mercaptobenzazole derivatives by green chemistry metrics》, the research content is summarized as follows. A green and efficient method was developed for the synthesis of 2-mercaptobenzazole derivatives via the reaction of com. available aniline derivatives with low-cost and nontoxic potassium thiocyanate in water. The reactions proceeded smoothly under catalyst- and ligand-free conditions to give the corresponding products in good to excellent yields. The versatility, low cost, and environmental friendliness, in combination with high yields and easy work-up makes the procedure noteworthy.

1575-37-7, 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., Category: bromides-buliding-blocks

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Vinyl bromides undergo the Heck reaction, which involves C-C coupling with alkene to give substituted alkenes. 629-04-9, formula is C7H15Br, Name is 1-Bromoheptane. Methyl bromide is a precursor in the manufacture of several chemicals and is employed as a soil sterilant, mainly for seed production. Synthetic Route of 629-04-9.

Verma, Suryadev K.;Punji, Benudhar research published 《 Manganese-Catalyzed C(sp²)-H Alkylation of Indolines and Arenes with Unactivated Alkyl Bromides》, the research content is summarized as follows. Selective C(sp²)-H bond alkylation of indoline like 2,3-dihydro-1-(2-pyridinyl)-1H-indole, carbazole like 9-(2-pyridinyl)-9H-carbazole and (2-pyridinyl)arenes I (R¹ = H, 4-Me, 4-OMe, 3-F₃C) with unactivated alkyl bromides R²(CH₂)₂Br (R² = Et, Pr, 4-(9H-carbazol-9-yl)butyl, etc.) is achieved using MnBr₂ catalyst in the absence of an external ligand. The alkylation uses a simple LiHMDS base and avoids the necessity of Grignard reagent, unlike other Mn-catalyzed C-H functionalization. This reaction proceeded either through a five- or less-favored six-membered metallacycle, and tolerated diverse functionalities, including alkenyl, alkynyl, silyl, aryl ether, pyrrolyl, indolyl, carbazolyl and alkyl bearing fatty alc. and polycyclic-steroid moieties. Alkylation follows a single electron transfer (SET) pathway involving 1e oxidative addition of alkyl bromide and rate-limiting C-H metalation.

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., Synthetic Route of 629-04-9

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. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine, Category: bromides-buliding-blocks

Verma, Shruti;Kujur, Shelly;Sharma, Richa;Pathak, Devendra D. research published 《 Cucurbit[6]uril-Supported Fe₃O₄ Magnetic Nanoparticles Catalyzed Green and Sustainable Synthesis of 2-Substituted Benzimidazoles via Acceptorless Dehydrogenative Coupling》, the research content is summarized as follows. A new composite, cucurbit[6]uril (CB[6])-supported magnetic nanoparticles, Fe₃O₄-CB[6], was synthesized via a co-precipitation method in air and fully characterized by Fourier transform IR spectroscopy, powder X-ray diffraction, XPS, field-emission SEM, high-resolution transmission electron microscopy, energy-dispersive X-ray spectroscopy, thermogravimetric anal., inductively coupled plasma-mass spectrometry, and vibrating sample magnetometry techniques. It has been found to be a highly efficient, economic, and sustainable heterogeneous catalyst and has been employed for the first time for the synthesis of a series of biol. important 2-substituted benzimidazoles from various benzyl alcs. and 1,2-diaminobenzenes under solvent-free conditions via acceptorless dehydrogenative coupling to afford the corresponding products in good to excellent yields (68-94%). The magnetic nature of the nanocomposite facilitates the facile recovery of the catalyst from the reaction mixture by an external magnet. The catalyst can be reused up to five times with negligible loss in its catalytic activity. All the isolated products were characterized by ¹H and ¹³C{¹H} NMR spectroscopy.

1575-37-7, 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., Category: bromides-buliding-blocks

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, HPLC of Formula: 629-04-9

Vereshchagin, A. N.;Minaeva, A. P.;Egorov, M. P. research published 《 Synthesis and antibacterial activity of new tetrakisquaternary ammonium compounds based on pentaerythritol and 3-hydroxypyridine》, the research content is summarized as follows. Tetrakisquaternary ammonium compounds based on pentaerythritol I (n = 7, 8, 9, 10, 11, 12) were synthesized for the first time. Bacteriostatic effect of the obtained compounds I was evaluated towards opportunistic gram-pos. Methicillin-resistant Staphylococcus aureus (strain ATCC 25923), gram-neg. Escherichia coli (ATCC 25922), and Pseudomonas aeruginosa (ATCC 27853). The activity of reported salts I was evaluated competitively with that of known antiseptics, Octenidine Dihydrochloride and Chlorhexidine Digluconate. The effect of length of the alkyl substituent in the salts I on their biol. activity was established. These new compounds I are based on available pentaerythritol and 3-hydroxypyridine.

HPLC of Formula: 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., 629-04-9.

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

Verdirosa, Federica;Gavara, Laurent;Sevaille, Laurent;Tassone, Giusy;Corsica, Giuseppina;Legru, Alice;Feller, Georges;Chelini, Giulia;Mercuri, Paola Sandra;Tanfoni, Silvia;Sannio, Filomena;Benvenuti, Manuela;Cerboni, Giulia;De Luca, Filomena;Bouajila, Ezeddine;Vo Hoang, Yen;Licznar-Fajardo, Patricia;Galleni, Moreno;Pozzi, Cecilia;Mangani, Stefano;Docquier, Jean-Denis;Hernandez, Jean-Francois research published 《 1,2,4-Triazole-3-Thione Analogues with a 2-Ethylbenzoic Acid at Position 4 as VIM-type Metallo-β-Lactamase Inhibitors》, the research content is summarized as follows. Metallo-β-lactamases (MBLs) are increasingly involved as a major mechanism of resistance to carbapenems in relevant opportunistic Gram-neg. pathogens. Unfortunately, clin. efficient MBL inhibitors still represent an unmet medical need. We previously reported several series of compounds based on the 1,2,4-triazole-3-thione scaffold. In particular, Schiff bases formed between diversely 5-substituted-4-amino compounds and 2-carboxybenzaldehyde were broad-spectrum inhibitors of VIM-type, NDM-1 and IMP-1 MBLs. Unfortunately, these compounds were unable to restore antibiotic susceptibility of MBL-producing bacteria, probably because of poor penetration and/or susceptibility to hydrolysis. To improve their microbiol. activity, we synthesized and characterized compounds where the hydrazone-like bond of the Schiff base analogs was replaced by a stable Et link. This small change resulted in a narrower inhibition spectrum, as all compounds were poorly or not inhibiting NDM-1 and IMP-1, but showed a significantly better activity on VIM-type enzymes, with Ki values in the μM to sub-μM range. The resolution of the crystallog. structure of VIM-2 in complex with one of the best inhibitors yielded valuable information about their binding mode. Interestingly, several compounds were shown to restore the β-lactam susceptibility of VIM-type-producing E. coli laboratory strains and also of K. pneumoniae clin. isolates. In addition, selected compounds were found to be devoid of toxicity toward human cancer cells at high concentration, thus showing promising safety.

Product Details of C7H5BrO2, 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. 585-76-2, formula is C7H5BrO2, Name is 3-Bromobenzoic acid, Recommanded Product: 3-Bromobenzoic acid

Venteicher, Brooklynn;Merklin, Kasey;Ngo, Huy X.;Chien, Huan-Chieh;Hutchinson, Keino;Campbell, Jerome;Way, Hannah;Griffith, Joseph;Alvarado, Cesar;Chandra, Surabhi;Hill, Evan;Schlessinger, Avner;Thomas, Allen A. research published 《 The effects of prodrug size and a carbonyl linker on L-type amino acid transporter 1-targeted cellular and brain uptake》, the research content is summarized as follows. The L-type amino acid transporter 1 (LAT1, SLC7A5) imports dietary amino acids and amino acid drugs (e. g., L-DOPA) into the brain, and plays a role in cancer metabolism Though there have been numerous reports of LAT1-targeted amino acid-drug conjugates (prodrugs), identifying the structural determinants to enhance substrate activity has been challenging. In this work, we investigated the position and orientation of a carbonyl group in linking hydrophobic moieties including the anti-inflammatory drug ketoprofen to L-tyrosine and L-phenylalanine. We found that esters of meta-carboxyl L-phenylalanine had better LAT1 transport rates than the corresponding acylated L-tyrosine analogs. However, as the size of the hydrophobic moiety increased, we observed a decrease in LAT1 transport rate with a concomitant increase in potency of inhibition. Our results have important implications for designing amino acid prodrugs that target LAT1 at the blood-brain barrier or on cancer cells.

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

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary

Organic bromides such as alkyl bromides are used as fumigants in agriculture to control insects. 629-04-9, formula is C7H15Br, Name is 1-Bromoheptane. Ethylene bromide is one of the commercially important organic bromides which are the component of leaded gasoline. Quality Control of 629-04-9.

Venkatesham, Papisetti;Shyam, Perugu;Pooja;Chedupaka, Raju;Vedula, Rajeswar Rao research published 《 Facile One-Pot Multi-Component Synthesis, Characterization, Molecular Docking Studies, Biological Evaluation of 1,2,4-Triazolo Isoindoline-1,3-Diones and Their DFT Calculations》, the research content is summarized as follows. Alkyl/aralkyl/phenacyl thiotriazolyl isoindoline-diones I [R = CH₂C(O)Ph, CH₂C(O)(4-O₂NC₆H₄), CH₂C(O)(4-FC₆H₄), etc.; X = H, Br] were synthesized by the reaction of dipotassium cyanodithioimidocarbonate salt with hydrazine hydrate, phthalic anhydride and alkyl/aralkyl/phenacyl bromides using acetic acid and sodium acetate via a one-pot four-component synthesis. Alternatively, the same final products I were also synthesized by the reaction of dipotassium cyanodithioimidocarbonate salt with hydrazine hydrate in presence of acetic acid to gave intermediate 5-amino-4H-1,2,4-triazole-3-thiol. This intermediate 5-amino-4H-1,2,4-triazole-3-thiol was further reacted with phthalic anhydride, followed by a reaction with alkyl/aralkyl/phenacyl bromides to gave the title compounds I in a two-step process. All the newly synthesized compounds were characterized by their spectral studies (FTIR, ¹H-NMR, ¹³C-NMR, Mass). Further, the synthesized compounds I were screened for their in-vitro anticancer activity. Compounds, I showed good cytotoxic assay against Hela cancer cell lines. Furthermore, compounds I were subjected to their docking anal. and DFT calculations

Quality Control of 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., 629-04-9.

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. 402-49-3, formula is C8H6BrF3, Name is 1-(Bromomethyl)-4-(trifluoromethyl)benzene, Synthetic Route of 402-49-3

Veligeti, Rajkumar;Ramakrishna, D. S.;Madhu, Rajesh Bagepalli;Anireddy, Jaya Shree research published 《 Synthesis of fluoro and trifluoromethyl substituents containing novel tetracyclic N-benzylated benzopiperazine fused acridone regioisomers using a greener solvent 2-MeTHF and their DFT studies》, the research content is summarized as follows. This work was reported the synthesis of novel tetracyclic N-benzylated benzopiperazine fused acridone regioisomers e.g., I tagged with three trifluoromethyl and three fluoride substituents. The novelty of this work was based on the execution of green chem. principles, 2-Me THF was employed as renewable solvent during this benzylation reaction (carried out at room temperature) resulting higher yields (87-94%) under halogenated solvent free methodol.

Synthetic Route of 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., 402-49-3.

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. Category: bromides-buliding-blocks

Vatansever, Erol C.;Kang, Jeffrey;Tuley, Alfred;Ward, E. Sally;Liu, Wenshe Ray research published 《 An optimal “Click” formulation strategy for antibody-drug conjugate synthesis》, the research content is summarized as follows. As a versatile reaction for bioconjugation, Cu(I)-catalyzed alkyne-azide cycloaddition (CuAAC) has enormous potential in the synthesis of antibody-drug conjugates (ADCs). In order to optimize CuAAC-based ADC synthesis, we characterized kinetically different formulation processes by mimicking ADC synthesis using small mols. and subsequently revealed unique kinetic behaviors of different combinations of alkyne and azide conditions. Our results indicate that under ADC synthesis conditions, for an alkyne-containing drug, its concentration has minimal impact on the reaction rate when an antibody has a non-metal-chelating azide but is proportional to concentration when an antibody contains a metal-chelating azide; however, for an alkyne-containing antibody, the ADC synthesis rate is proportional to the concentration of a drug with a non-metal-chelating azide but displays almost no dependence on drug concentration with a metal-chelating azide. Based on our results, we designed and tested an optimal “click” formulation strategy that allowed rapid and cost-effective synthesis of a new ADC.

Category: bromides-buliding-blocks, 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

A variety of minor organobromine compounds are found in nature, but none are biosynthesized or required by mammals. 1575-37-7, formula is C6H7BrN2, Name is 4-Bromobenzene-1,2-diamine. Organobromine compounds have fallen under increased scrutiny for their environmental impact., Related Products of 1575-37-7.

Vasu, Amrutham;Naresh, Mameda;Krishna Sai, Gajula;Divya Rohini, Yennamaneni;Murali, Boosa;Ramulamma, Madasu;Ramunaidu, Addipilli;Narender, Nama research published 《 A heterogeneous catalytic strategy for facile production of benzimidazoles and quinoxalines from primary amines using the Al-MCM-41 catalyst》, the research content is summarized as follows. This study reported a straightforward heterogeneous catalytic (Al-MCM-41) approach to synthesize benzimidazoles I [R = n-Pr, cyclohexyl, Ph, etc.; R¹ = H, 5-Me, 5,6-di-Cl, etc.; R² = H, Bn, CH₂CH₂Ph] and quinoxalines II [R³ = H, 6-Me, 6-Br, etc.; R⁴ = H, 4-MeC₆H₄, 4-ClC₆H₄, etc.] from primary amines under solvent-free conditions. The Al-MCM-41 catalyst was prepared using a hydrothermal method and characterized by various anal. techniques. The probability and limitations of the catalytic methodol. were presented with various substrates. The catalytic method grants an attractive route to a wide variety of benzimidazole and quinoxaline moieties with good to excellent yields. The gram scale reaction and reusability (up to five cycles) of the Al-MCM-41 catalyst would greatly benefit industrial applications.

1575-37-7, 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., Related Products of 1575-37-7

Referemce:
Bromide – Wikipedia,
bromide – Wiktionary