D44804

α,α′-Dibrom-p-xylol

97%

• Synonym(e): 1,4-Bis-(brommethyl)-benzol, p-Xylylendibromid
• Lineare Formel: C₆H₄(CH₂Br)₂
• CAS-Nummer: 623-24-5
• Molekulargewicht: 263.96
• Beilstein: 1100019
• EG-Nummer: 210-781-1
• MDL-Nummer: MFCD00000182
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24893876
• NACRES: NA.22

Eigenschaften

• Qualitätsniveau: 100
• Assay: 97%
• Form: crystals
• bp: 245 °C (lit.)
• mp (Schmelzpunkt): 143-145 °C (lit.)
• SMILES String: BrCc1ccc(CBr)cc1
• InChI: 1S/C8H8Br2/c9-5-7-1-2-8(6-10)4-3-7/h1-4H,5-6H2
• InChIKey: RBZMSGOBSOCYHR-UHFFFAOYSA-N

Beschreibung

Allgemeine Beschreibung

α,α′-Dibromo-p-xylene, also known as p-xylylene dibromide, is an aliphatic dihalide that serves as a versatile intermediate in organic reactions, including the synthesis of aromatic ionene polymers and dual-site phase-transfer catalysts.

Anwendung

α,α′-Dibromo-p-xylene can be used as a building block to synthesize:      

• Phthalazinone derivatives, which are reported as potent inhibitors of phosphodiesterase 4.    
• N-Phenylated polyamine via polycondensation reaction with aniline and α, α′-dianilino-p-xylene.     
• Porous polymeric network (PPN) via a Friedel-Crafts alkylation reaction with triphenylamine using FeCl₃ as an oxidizing agent.

Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H315,H319,H335
• P-Sätze: P261 - P264 - P271 - P280 - P302 + P352 - P305 + P351 + P338
• Gefahreneinstufungen: Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
• Zielorgane: Respiratory system
• Lagerklassenschlüssel: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• WGK: WGK 3
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges