20871-01-6

Usage

Uses

Used in Pharmaceutical Industry:
2,5-Dibromo-4-methylbenzoic acid is utilized as a chemical intermediate for the synthesis of various pharmaceuticals. Its unique structure contributes to the development of new drugs, enhancing the range of treatments available for different medical conditions.
Used in Agrochemical Industry:
In the agrochemical sector, 2,5-Dibromo-4-methylbenzoic acid serves as a precursor in the production of agrochemicals. It plays a role in the development of substances that help improve crop protection and contribute to more efficient agricultural practices.
Used in Dye Industry:
2,5-Dibromo-4-methylbenzoic acid is also used as a dye intermediate, which is essential for the creation of a variety of dyes used in different industries, including textiles and printing.
Used in Liquid Crystal Preparation:
2,5-Dibromo-4-methylbenzoic acid is employed in the preparation of liquid crystals, which are crucial components in a range of display technologies, such as those found in televisions, computer monitors, and other electronic devices.
Used in Synthesis of Complex Molecules:
As a reactant, 2,5-Dibromo-4-methylbenzoic acid is involved in the synthesis of complex molecules, which can be used in various chemical and research applications, further expanding its utility in scientific and industrial fields.

Upstream product

• 1074-24-4 2,5-dibromo-p-xylene 
• 7697-37-2 nitric acid 
• 106-42-3 para-xylene 
• 859816-42-5 1-bromo-2-isopropyl-5-methyl-4-nitro-benzene 
• 4478-10-8 2-bromo-1-isopropyl-4-methyl-benzene 

Downstream Products

• 13731-82-3 2,5-dibromoterephtalic acid 
• 90326-61-7 5-bromo-2-methoxy-4-methyl benzoic acid 
• 245549-92-2 2,5-dibromo-4-methylbenzoic acid methyl ester 
• 791717-66-3 2,5-dibromo-4-methylbenzohydrazide 
• 791717-73-2 N'-(2,5-dibromo-4-methylbenzoyl)thiophene-2-carbohydrazide 
• 791717-68-5 N'-benzoyl-2,5-dibromo-4-methylbenzohydrazide 
• 791717-70-9 2,5-dibromo-N'-(4-methoxybenzoyl)-4-methylbenzohydrazide 
• 791717-69-6 2,5-dibromo-4-methyl-N'-(4-methylbenzoyl)benzohydrazide 
• 791717-72-1 2,5-dibromo-N'-(4-cyanobenzoyl)-4-methylbenzohydrazide 
• 791717-74-3 N'-(2,5-dibromo-4-methylbenzoyl)-1-naphthohydrazide 
• 791717-71-0 2,5-dibromo-4-methyl-N'-[4-(octyloxy)benzoyl]benzohydrazide 
• 265976-73-6 2,5-dibromo-4-bromomethyl-benzoic acid methyl ester 
• 225917-55-5 2,5-dibromo-4-(4-hydroxy-phenoxymethyl)-benzoic acid methyl ester 
• 18013-97-3 2,5-dibromo-terephthalic acid diethyl ester 

Relevant academic research and scientific papers

Interactions between shape-persistent macromolecules as probed by AFM

Water-soluble shape-persistent cyclodextrin (CD) polymers with amino-functionalized end groups were prepared starting from diacetylene-modified cyclodextrin monomers by a combined Glaser coupling/click chemistry approach. Structural perfection of the neut

PREPARING METHOD OF SYNTHESIZING INDACENO DITHIENOTHIOPHENE COMPOUND

Provided is a manufacturing method of synthesizing an indaseno-dithienothiophene compound using, as a novel starting material, a bis(thieno[3,2-b] thiophen-2-yl)-bismethanone derivative. The manufacturing method of synthesizing the indaseno-dithienothiophene compound has an excellent synthetic yield and improves production efficiency.COPYRIGHT KIPO 2020

Reconfigurable molecules and molecular switches, sensors, and dyes employing the same

Various embodiment of the present invention are directed to organic molecules that are reconfigurable under application of an external electric field. One organic molecule embodiment of the present invention has the structure: where L1X1

Novel alternating fluorene-based conjugated polymers containing oxadiazole pendants with various terminal groups

A series of soluble alternating fluorene-based copolymers containing symmetrical and asymmetrical 1,3,4-oxadiazole (OXD) pendants with various terminal groups are synthesized by the palladium-catalyzed Suzuki coupling reaction. These polymers possess higher glass transition temperatures than that of the analogous dialkoxy-substituted polymer (PFPOC6) consisting of the same backbone without OXD pendants. The photophysical and electrochemical properties of these polymers are affected by the polar effect (electron-withdrawing group, -CN, and electron-donating group, -R or -OR) and the size effect (the size of the grafted side chain) of the OXD pendants. Owing to the large steric hindrance of OXD pendants, the aggregation of these polymers in solids is reduced, which results in almost identical PL emissions in both solution and solid states. The bulky OXD pendants on the polymer side chains can provide the polymer films with lower HOMO and LUMO energy levels and better electron injection property. Since only one emission peak is observed in both PL and EL spectra of these polymers, it is evidenced that effective energy transfer from the OXD pendants to the conjugated polymer backbones has occurred, thus eliminating the light emission from the OXD pendants. These asymmetrical OXD-substituted polymers have higher quantum yields and less aggregation in the solid state than the symmetrical OXD-substituted polymers. The symmetrical OXD-substituted polymer (P1) has a longer PL emission wavelength than the asymmetrical OXD-substituted polymers (P2-P8), which may be due to the improvement of the coplanarity between the polymer backbone and the symmetrical OXD pendants and/or the introduction of two electron-withdrawing OXD pendants.

A poly(para-phenylene) with hydrophobic and hydrophilic dendrons: Prototype of an amphiphilic cylinder with the potential to segregate lengthwise

Langmuir monolayers are formed from an amphiphilically decorated poly(para-phenylene), which indicates that its hydrophilic and hydrophobic parts segregate lengthwise along the polymer backbone in this nanometer-sized cylinder as illustrated in A. This po

Imine-bridged planar poly(p-phenylene) derivatives for maximization of extended π-conjugation. The common intermediate approach

Described are two approaches to planar conjugated poly(p-phenylene) (PPP) derivatives. The first approach, involving lactam bridges, was unsuccessful due to the insolubility of the 6(5H)-phenanthridinonyl moieties. The second approach, which utilized imine bridges, worked excellently since the compounds were generally soluble and the bridge formations were highly efficient. The main PPP backbone was synthesized via Pd(0)-catalyzed coupling of an arylbis(boronic ester) with an aryl dibromide. Imine bridges, which are formed by exposure of the polymer to trifluoroacetic acid or HCl, force the consecutive units into planarity. The bridging units are sp2 hybridized, thus allowing for greater π-electron flow between the consecutive phenyl units. The polymers, upon planarization, exhibit enormous bathochromic shifts of 210-240 nm. The optical spectra of the planar systems are compared to that of the parent nonplanarized polymers, oligo(p-phenylenes), and PPP. When the bridges were n-dodecyl- or n-octylphenyl-substituted, the fully planar structures could be made into flexible free-standing films. Additionally, an improved method is described in which a common intermediate, an aryl dibromo diacyl halide, could be used to prepare both the A and B units for the AB-type step growth polymerization. In one case, a selective alkylation or arylation of the acyl portions was accomplished using lower order cyanocuprates or Pd(0)-catalyzed ketone formation. For the second monomer, a bis-Curtius rearrangement, in the presence of tert-butyl alcohol, converted both carbonyl moieties to BOC protected amines.