34125

二溴二氟甲烷

≥95.0% (GC)

• 别名: Carbon dibromide difluoride, Difluorodibromomethane
• 经验公式（希尔记法）: CBr₂F₂
• CAS号: 75-61-6
• 分子量: 209.82
• Beilstein: 1732515
• EC號碼: 200-885-5
• MDL號碼: MFCD00000367
• 分類程式碼代碼: 12352100
• PubChem物質ID: 57649084
• NACRES: NA.22

属性

• 蒸汽密度: 7.24 (vs air)
• 品質等級: 100
• 蒸汽壓力: 12.79 psi ( 20 °C)
• 化驗: ≥95.0% (GC)
• 形狀: liquid
• 折射率: n20/D 1.398 (lit.); n20/D 1.398
• bp: 22-23 °C (lit.)
• mp: −142-−141 °C (lit.)
• 密度: 2.297 g/mL at 25 °C (lit.)
• 儲存溫度: 2-8°C
• SMILES 字串: FC(F)(Br)Br
• InChI: 1S/CBr2F2/c2-1(3,4)5
• InChI 密鑰: AZSZCFSOHXEJQE-UHFFFAOYSA-N

说明

一般說明

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.

應用

• 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).

其他說明

作为反应物与羰基化合物通过 Wittig 烯化反应转化成二氟亚甲基或氟亚甲基衍生物；二氟卡宾的前体

安全信息

• 象形圖: GHS07
• 訊號詞: Warning
• 危險聲明: H315 - H319 - H335 - H420
• 防範說明: P261 - P264 - P271 - P302 + P352 - P305 + P351 + P338 - P502
• 危險分類: Eye Irrit. 2 - Ozone 1 - Skin Irrit. 2 - STOT SE 3
• 標靶器官: Respiratory system
• 儲存類別代碼: 10 - Combustible liquids
• 水污染物質分類（WGK）: WGK 3
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable
• 個人防護裝備: Gloves