367-67-9

Basic information

• Product Name: 2-Bromo-5-nitrobenzotrifluoride
• Synonyms: 2-BROMO-5-NITROBENZOTRIFLUORIDE;2-BROMO-5-NITRO-ALPHA,ALPHA,ALPHA-TRIFLUOROTOLUENE;5-NITRO-2-BROMOBENZOTRIFLUORIDE;LABOTEST-BB LT01143236;3-Trifluoromethyl-4-bromonitrobenzene;2-Bromo-5-nitrobenzotrifluorid;1-bromo-4-nitro-2-(trifluoromethyl)benzene;2-Bromo-5-nitrobenzotrifluoride98%
• CAS NO: 367-67-9
• Molecular Formula: C₇H₃BrF₃NO₂
• Molecular Weight: 270
• EINECS: 1312995-182-4
• Product Categories: Trifluoromethylbenzene serise;Benzene series;API intermediates;Nitro Compounds;Nitrogen Compounds;Organic Building Blocks
• Mol File: 367-67-9.mol
• Article Data: 4

Chemical Properties

• Melting Point: 41-44 °C(lit.)
• Boiling Point: 87-88 °C3 mm Hg(lit.)
• Flash Point: >230 °F
• Appearance: yellow crystals
• Density: 1.7750 (estimate)
• Vapor Pressure: 0.141mmHg at 25°C
• Refractive Index: 1.514
• Storage Temp.: Sealed in dry,Room Temperature
• Solubility: soluble in Methanol
• BRN: 2460260
• CAS DataBase Reference: 2-Bromo-5-nitrobenzotrifluoride(CAS DataBase Reference)
• NIST Chemistry Reference: 2-Bromo-5-nitrobenzotrifluoride(367-67-9)
• EPA Substance Registry System: 2-Bromo-5-nitrobenzotrifluoride(367-67-9)

Safety Data

• Hazard Codes: Xi,Xn
• Statements: 36/37/38-20/21/22
• Safety Statements: 37/39-26-24/25
• RIDADR: 2306
• WGK Germany: 3
• HazardClass: IRRITANT
• Hazardous Substances Data: 367-67-9(Hazardous Substances Data)

Usage

Chemical Properties

yellow crystals

Uses

2-Bromo-5-nitrobenzotrifluoride may be used in the preparation of:new unsymmetrical diamine monomer containing both the benzimidazole ring and trifluoromethyl group, 6,4′-diamino-2′-trifluoromethyl-2-phenylbenzimidazole2,5-bis[(4-nitro-2-trifluoromethylphenoxy)-phenyl]diphenylphosphine oxide (BNTFDPO)

InChI:InChI=1/C7H3BrF3NO2/c8-5-1-4(7(9,10)11)2-6(3-5)12(13)14/h1-3H

Upstream product

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• 392-83-6 o-trifluoromethylphenyl bromide 
• 88-17-5 2-(trifluoromethyl)benzenamine 

Downstream Products

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• 924909-37-5 4-(3-fluoropropyl)-3-(trifluoromethyl)aniline 
• 924909-38-6 4-(3,3-difluoropropyl)-3-(trifluoromethyl)aniline 
• 924909-36-4 1-(3-fluoropropyl)-4-nitro-2-(trifluoromethyl)benzene 
• 924909-35-3 3-(4-nitro-2-(trifluoromethyl)phenyl)propan-1-ol 
• 924909-44-4 4-(4-fluorobutyl)-3-(trifluoromethyl)aniline 
• 924909-46-6 4-(4-amino-2-(trifluoromethyl)phenyl)butan-1-ol 
• 924909-48-8 [4-(4-fluorobutyl)-3-trifluoromethylphenyl]-carbamic acid tert-butyl ester 
• 924909-47-7 [4-(4-hydroxybutyl)-3-trifluoromethylphenyl]carbamic acid tert-butyl ester 
• 946730-93-4 4-(cyclohexyloxy)-3-(trifluoromethyl)aniline 

Relevant articles and documents

Fluorine-containing aromatic diamine compound and preparation method thereof, and fluorine-containing polyimide compound and preparation method thereof

The invention provides a fluorine-containing aromatic diamine compound and a preparation method thereof, and a fluorine-containing polyimide compound and a preparation method thereof. The fluorine-containing aromatic diamine compound has a structural general formula shown in the specification. The preparation method of the fluorine-containing aromatic diamine compound comprises the following stepsof: mixing materials including a compound A and a compound B, carrying out a first reaction to obtain a compound C, and carrying out a hydrogenation reaction on the compound C to obtain the fluorine-containing aromatic diamine compound. Raw materials of the fluorine-containing polyimide compound comprise the fluorine-containing aromatic diamine compound. The preparation method of the fluorine-containing polyimide compound comprises the following steps of: mixing materials including the fluorine-containing aromatic diamine compound and a dianhydride compound to obtain a mixture, and then carrying out a sixth reaction to obtain a precursor; and carrying out dehydration cyclization reaction on the pre-polymer, and carrying out post-treatment to obtain the fluorine-containing polyimide compound. The polyimide compound prepared from the fluorine-containing aromatic diamine compound provided by the invention is good in solubility, relatively high in transmittance and good in mechanical property.

Synthesis method of 2-bromo-5-fluorobenzotrifluoride

The invention relates to a synthesis method of 2-bromo-5-fluorobenzotrifluoride, belonging to the field of chemical synthesis. The method uses orthotrifluoromethyl aniline as the initial raw material, and comprises the following steps: (1) Sandmeyer bromination reaction; (2) nitration reaction; (3) catalytic hydrogenation reduction reaction; and (4) diazotization fluorination reaction. According to the method, the orthotrifluoromethyl aniline used as the raw material is subjected to Sandmeyer reaction bromination, nitration, hydrogenation reduction and diazotization fluorination to finally synthesize the 2-bromo-5-fluorobenzotrifluoride. The 2-bromo-5-fluorobenzotrifluoride product has the advantages of high purity (up to 99.0% or above), fewer impurity varieties and stable quality and properties.