16732-66-4

Usage

Uses

Used in Organic Synthesis:
2-bromophenylhydrazine is used as a key intermediate in the synthesis of various organic compounds, contributing to the formation of diverse chemical structures and products.
Used in Pharmaceutical Industry:
In the pharmaceutical sector, 2-bromophenylhydrazine is utilized as a reagent in the development of new drugs, potentially aiding in the discovery of novel therapeutic agents.
Used in Research and Development:
2-bromophenylhydrazine is employed as a research compound for exploring its potential applications in biomedical fields, including the treatment of diseases, due to its unique chemical properties and reactivity.

InChI:InChI=1/C6H7BrN2/c7-5-3-1-2-4-6(5)9-8/h1-4,9H,8H2

Upstream product

• 7647-01-0 hydrogenchloride 
• 50709-33-6 2-bromophenylhydrazine hydrochloride 
• 95-46-5 2-methylphenyl bromide 
• 615-36-1 2-bromoaniline 

Downstream Products

• 63014-18-6 (2-bromo-phenylhydrazono)-acetic acid 
• 63014-18-6 (2-bromo-phenylhydrazono)-acetic acid 
• 18474-55-0 2-(2-bromo-phenylhydrazono)-propionic acid ethyl ester 
• 71856-54-7 5-amino-1-(2-bromo-phenyl)-1H-pyrazole-4-carbonitrile 
• 79006-01-2 1-(2-Bromo-phenylamino)-3-phenyl-1,3-dihydro-indol-2-one 
• 184474-82-6 2-bromophenylaminophthalimide 
• 497833-00-8 1-(2-bromophenyl)-5-(trifluoromethyl)pyrazole 
• 916515-46-3 (5-bromo-2-hydroxy-phenyl)-[1-(2-bromo-phenyl)-1H-pyrazol-4-yl]-methanone 
• 916515-64-5 {4-bromo-2-[1-(2-bromo-phenyl)-1H-pyrazole-4-carbonyl]-phenoxy}-acetic acid ethyl ester 

Relevant academic research and scientific papers

ORGANOMETALLIC COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME

An organometallic compound represented by Formula 1: wherein, in Formula 1, groups and variables are the same as described in the specification.

Synthesis and biological evaluation of benzimidazole phenylhydrazone derivatives as antifungal agents against phytopathogenic fungi

A series of benzimidazole phenylhydrazone derivatives (6a-6ai) were synthesized and characterized by 1H-NMR, ESI-MS, and elemental analysis. The structure of 6b was further confirmed by single crystal X-ray diffraction as (E)-configuration. All the compounds were screened for antifungal activity against Rhizoctonia solani and Magnaporthe oryzae employing a mycelium growth rate method. Compound 6f exhibited significant inhibitory activity against R. solani and M. oryzae with the EC50 values of 1.20 and 1.85 μg/mL, respectively. In vivo testing demonstrated that 6f could effectively control the development of rice sheath blight (RSB) and rice blast (RB) caused by the above two phytopathogens. This work indicated that the compound 6f with a benzimidazole phenylhydrazone scaffold could be considered as a leading structure for the development of novel fungicides.

2-bromophenylhydrazine oxalate preparation method

The invention relates to a 2-bromophenylhydrazine oxalate preparation method. The method comprises the steps of diazotization, reduction, purification and salt formation. In the diazotization and reduction steps, a reaction liquid is kept strongly acidic with concentrated hydrochloric acid, such that smooth and complete reactions are ensured. In the reduction step, zinc powder-concentrated hydrochloric acid is adopted as a reducing agent for replacing sodium thiosulfate, sodium bisulfite, stannous chloride-hydrochloric acid and the like, such that reduction performance is good, yield is high, and reaction time is shortened. Impurities such as zinc hydroxide produced in the reaction are easy to remove, such that product impurity amount is low, and product purity is high. In the salt formation step, acetone is used for leaching, such that product purity is improved, and product appearance is ensured. The preparation method has the advantages of stable and reliable process, easy operation, and high product purity (product content is no lower than 99.2% as a result of high-performance liquid chromatography). A product yield is no lower than 42%. The method can completely satisfy market demands on 2-bromophenylhydrazine oxalate.

FLUORSCENT DYES WITH LARGE STOKES SHIFTS

Herein are disclosed fluorescent dyes based around a framework for a ligand comprising a pyridyl group linked to a diaryl anilido unit. A variety of ligands based on this framework are disclosed. The ligands chelate to a BF2 center to produce the fluorescent dye. The disclosed dyes combine longer Stokes shifts (approximately 100 nm) with increased quantum yields. They are also photostable in aqueous and organic solutions for several hours. These dyes may be used in the labeling of biomolecules for bioimaging and assays. Also disclosed are methods for the synthesis of these dyes.

Facile and convenient synthesis of aryl hydrazines via copper-catalyzed C-N cross-coupling of aryl halides and hydrazine hydrate

An efficient and convenient method for the synthesis of aryl hydrazines has been developed via copper-catalyzed cross-coupling of aryl bromides and hydrazine with a readily accessible ligand and water as a solvent. The multigram scale procedure is applicable to aryl bromides bearing both moderately electron-donating and electron-withdrawing substituents in the aromatic nucleus. No column chromatography is required to obtain aryl hydrazine hydrochlorides in good yields.

7-(Piperazine-1-Ymethyl)-1H-Indole-2-Carboxylic Acid (Phenyl)-Amide Derivatives and Allied Compounds as P38 Map Kinase Inhibitors for the Treatment of Respiratory Diseases

The present invention provides compounds according to general formula (I) which are proposed for the treatment of respiratory complaints, particularly asthma and COPD.

On the way to biodegradable poly(hydroxy butyrate) from propylene oxide and carbon monoxide via β-butyrolactone: Multisite catalysis with newly designed chiral indole-imino chromium(III) complexes

Enantioenriched poly(hydroxy butyrate) (PHB) is a biodegradable polyester of significant commercial interest as an environmentally benign substitute of commodity polyolefines. We report on the design and development of new chiral indole-based ligand families and on their chromium(III) complexes as enantioselective catalysts for the conversion of propylene oxide and carbon monoxide to enantioenriched β-butyrolactone, the key monomer for the production of PHB by ring-opening polymerization. The enantioselective carbonylation catalysts are based on new chiral tri- and tetradentate [N2O] and [N4] chromium(III) complexes containing chiral indolaldimine ligand scaffolds. The conceptual design of these ligands is inspired by Jacobsen's salicylaldimine lead structure; the key difference is an exchange of the salicyl-O-donor against an indole-N-donor, allowing additional structural diversity and stereoelectronic tuning by the indole substitution pattern. Synthetically, chiral indolealdimines are easily accessible from 7-formylindoles by standard Schiff base condensation with chiral amine building blocks; the 7-formylindoles in turn are synthesized from the corresponding 7-bromoindoles by the Rapoport synthesis, and the starting 7-bromoindoles are accessible from 2-bromoaniline by the classical Fischer indole synthesis. Three generations of chiral [N2O] and [N4] chromium(III) catalysts have been developed and evaluated in the enantioselective carbonylation of racemic propylene oxide with carbon monoxide using tetracarbonylcobaltate as the nucleophilic reagent for the insertion of carbon monoxide into the activated propylene oxide/chiral Lewis acid complex. The best catalyst out of 10 candidates showed at a temperature of 80 °C an activity of 37% conversion, 100% chemoselectivity, and 19% stereoselectivity.

Preparation of sodium-hydrogen exchanger type-1 inhibitors

This invention relates to methods of preparing sodium-hydrogen exchanger type 1 (NHE-1) inhibitors of formula I′ 1intermediates of the NHE-1 inhibitors and a new almost colorless form of the NHE-1 inhibitor N-(5-cyclopropyl-1-quinolin-5-yl-1H-pyrazole-4-carbonyl)-guanidine.

Synthesis and adenosine receptor affinity of a series of pyrazolo[3,4-d]pyrimidine analogues of 1-methylisoguanosine

Pyrazolo[3,4-d]pyrimidines are pyrazolo analogues of purines. They have been shown to be a general class of compounds which exhibit A1 adenosine receptor affinity. Two series of pyrazolo[3,4-d]pyrimidine analogues of 1-methylisoguanosine have been synthesized. The first involved substitution of the N1-position while the second involved substitution of the N5-position. Both alkyl and aryl substituents were examined. All compounds were tested for A1 adenosine receptor affinity by using a (R)-[3H]-N6-(phenylisopropyl)adenosine binding assay. The 3-chlorophenyl group showed the greatest activity in the N1-position and the butyl group produced the greatest activity in the N5-position. Combination of the best substituent in each of these positions enhanced the overall activity. The most potent compound was 4-amino-5-N-butyl-1-(3-chlorophenyl)-1H-pyrazolo[3,4-d] pyrimidin-6(5H)-one with an IC50 of 6.4 X 10-6 M. Selectivity at the receptor subclasses was examined by performing an A2 adenosine receptor affinity assay with [3H]CGS 21680. This series of compounds were slightly less potent at A2 receptors. 4-Amino-5-N-butyl-1-(3-chlorophenyl)-1H-pyrazolo[3,4-d] pyrimidin-6(5H)-one was the most potent compound with an IC50 of 19.2 X 10-6 M.