D40752

1,2-Dibromethan

98%

• Synonym(e): EDB, Ethylenbromid
• Lineare Formel: BrCH₂CH₂Br
• CAS-Nummer: 106-93-4
• Molekulargewicht: 187.86
• Beilstein: 605266
• EG-Nummer: 203-444-5
• MDL-Nummer: MFCD00000233
• UNSPSC-Code: 12352100
• PubChem Substanz-ID: 24893813
• NACRES: NA.22

Eigenschaften

• Dampfdichte: ~6.5 (vs air)
• Qualitätsniveau: 200
• Dampfdruck: 11.7 mmHg ( 25 °C)
• Assay: 98%
• Form: liquid
• Brechungsindex: n20/D 1.539 (lit.)
• bp: 131-132 °C (lit.)
• mp (Schmelzpunkt): 8-11 °C (lit.)
• Dichte: 2.18 g/mL at 25 °C (lit.)
• SMILES String: BrCCBr
• InChI: 1S/C2H4Br2/c3-1-2-4/h1-2H2
• InChIKey: PAAZPARNPHGIKF-UHFFFAOYSA-N

Beschreibung

Anwendung

1,2-Dibromoethane can be used:

• To prepare functionalized styrenes by reacting with arylboronic acids via palladium-catalyzed cross-coupling reaction.
• Along with potassium iodide(KI) for α-acyloxylation of ketones with carboxylic acids without the use of transition metals and strong oxidants.
• In the synthesis of 5-aryl/alkyl-2-vinyl-2H-tetrazoles through one-pot regioselective vinylation of 5-tetrazoles without a metal catalyst or organocatalyst.
• In the preparation of aryltriethoxysilane using aryl bromide, Mg powder and tetraethyl orthosilicate through sonochemical Barbier-type reaction.
• As a reoxidizing reagent along with a silver catalyst in the regioselective carbomagnesiation of terminal alkynes with alkyl Grignard reagents.

Sonstige Hinweise

May darken in storage

Sicherheitshinweise

• Piktogramme: GHS06,GHS08,GHS09
• Signalwort: Danger
• H-Sätze: H301 + H311 + H331,H315,H319,H335,H350,H411
• P-Sätze: P273 - P280 - P301 + P310 - P302 + P352 + P312 - P304 + P340 + P311 - P305 + P351 + P338
• Gefahreneinstufungen: Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Aquatic Chronic 2 - Carc. 1B - 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 ABEK (EN14387) respirator filter