240656
1,2-二溴乙烷
≥99%
别名:
EDB, 二溴化乙烯
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关于此项目
线性分子式:
BrCH2CH2Br
化学文摘社编号:
分子量:
187.86
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-444-5
Beilstein/REAXYS Number:
605266
MDL number:
Assay:
≥99%
Form:
liquid
vapor density
~6.5 (vs air)
Quality Segment
vapor pressure
11.7 mmHg ( 25 °C)
assay
≥99%
form
liquid
refractive index
n20/D 1.539 (lit.)
bp
131-132 °C (lit.)
mp
8-11 °C (lit.)
solubility
water: soluble 250 part, alcohol: miscible(lit.), diethyl ether: miscible(lit.)
density
2.18 g/mL at 25 °C (lit.)
functional group
bromo
SMILES string
BrCCBr
InChI
1S/C2H4Br2/c3-1-2-4/h1-2H2
InChI key
PAAZPARNPHGIKF-UHFFFAOYSA-N
General description
1,2-Dibromoethane (DBE) is an organobromine compound that is used as an ‘entrainment reagent′ to activate magnesium in Grignard reagents. It is also a useful reagent for activating zinc. DBE is used as an intermediate in the synthesis of dyes, pesticides and pharmaceuticals.
Application
1,2-Dibromoethane can be used as a reagent to prepare:
It can also be used as a bromine source in organic synthesis to brominate carbanions.
- Vinyl bromide and 1,2-disubstituted ethane derivatives.
- Vinyl aromatic compounds by palladium-catalyzed cross-coupling reaction with various arylboronic acids via in situ formation of vinyl bromide.
- 2-arylsulfonyl hydrazones by reacting with aryldiazonium tetrafluoroborates, sulfur dioxide and hydrazines.
It can also be used as a bromine source in organic synthesis to brominate carbanions.
Other Notes
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Danger
Hazard Classifications
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
target_organs
Respiratory system
存储类别
6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter