34125

Dibromodifluoromethane

≥95.0% (GC)

• Sinonimo/i: Carbon dibromide difluoride, Difluorodibromomethane
• Formula empirica (notazione di Hill): CBr₂F₂
• Numero CAS: 75-61-6
• Peso molecolare: 209.82
• Beilstein: 1732515
• Numero CE: 200-885-5
• Numero MDL: MFCD00000367
• Codice UNSPSC: 12352100
• ID PubChem: 57649084
• NACRES: NA.22

Proprietà

• Densità del vapore: 7.24 (vs air)
• Tensione di vapore: 12.79 psi ( 20 °C)
• Saggio: ≥95.0% (GC)
• Forma fisica: liquid
• Indice di rifrazione: n20/D 1.398 (lit.); n20/D 1.398
• P. eboll.: 22-23 °C (lit.)
• Punto di fusione: −142-−141 °C (lit.)
• Densità: 2.297 g/mL at 25 °C (lit.)
• Temperatura di conservazione: 2-8°C
• Stringa SMILE: FC(F)(Br)Br
• InChI: 1S/CBr2F2/c2-1(3,4)5; AZSZCFSOHXEJQE-UHFFFAOYSA-N

Descrizione

Descrizione generale

The photolysis products of dibromodifluoromethane were characterized by matrix isolation infrared and UV/Visible spectroscopy. Free radical addition of dibromodifluoromethane with fluoroolefins has been reported. Dibromodifluoromethane reacts with hydrocarbon olefins to yield 1,3-dibromo-1,1-difluoroalkene. Sulfinatodehalogenation reagent promoted addition reaction of difluorodibromomethane with alkenes, alkynes and cyclic enol ethers has been described.

Applicazioni

• Synthesis of 3‑Fluoropyrazoles via Radical-Polar Crossover Photoinduced Cyclization: This study highlights the use of dibromodifluoromethane (CF2Br2) for the synthesis of valuable difluorinated and monofluorinated compounds through a novel photoinduced cyclization process (MA Reed, ND Patil, Synfacts, 2023).

Altre note

Reagent for the Wittig olefination of carbonyl compounds to difluoromethylene and fluoromethylene derivatives; Precursor of difluorocarbene

Informazioni sulla sicurezza

• Pittogrammi: GHS07
• Avvertenze: Warning
• Indicazioni di pericolo: H315,H319,H335,H420
• Consigli di prudenza: P261 - P264 - P271 - P302 + P352 - P305 + P351 + P338 - P502
• Classi di pericolo: Eye Irrit. 2 - Ozone 1 - Skin Irrit. 2 - STOT SE 3
• Organi bersaglio: Respiratory system
• Codice della classe di stoccaggio: 10 - Combustible liquids
• Classe di pericolosità dell'acqua (WGK): WGK 3
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable
• Dispositivi di protezione individuale: Gloves