D40752
1,2-二溴乙烷
98%
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:
98%
Form:
liquid
InChI key
PAAZPARNPHGIKF-UHFFFAOYSA-N
InChI
1S/C2H4Br2/c3-1-2-4/h1-2H2
SMILES string
BrCCBr
vapor density
~6.5 (vs air)
vapor pressure
11.7 mmHg ( 25 °C)
assay
98%
form
liquid
Quality Level
bp
131-132 °C (lit.)
mp
8-11 °C (lit.)
density
2.18 g/mL at 25 °C (lit.)
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Application
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.
Other Notes
储存时颜色可能变深
signalword
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
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
法规信息
新产品
此项目有
A facile and efficient synthesis of aryltriethoxysilanes via sonochemical Barbier-type reaction
Lee AS, et al.
Tetrahedron Letters, 47(39), 7085-7087 (2006)
Silver-catalyzed carbomagnesiation of terminal aryl and silyl alkynes and enynes in the presence of 1, 2-dibromoethane
Fujii Y, et al.
Chemical Communications (Cambridge, England), 47(9), 1115-1117 (2009)
One-pot regioselective vinylation of tetrazoles: preparation of 5-substituted 2-vinyl-2H-tetrazoles
Roh J, et al.
Tetrahedron Letters, 51(10), 1411-1414 (2010)
1,2-Dibromoethane and KI mediated α-acyloxylation of ketones with carboxylic acids
Wang X, et al.
Chinese Chemical Letters = Zhongguo Hua Xue Kuai Bao, 5(16), 2891-2894 (2019)
Saturation vapor pressures and transition enthalpies of low-volatility organic molecules of atmospheric relevance: from dicarboxylic acids to complex mixtures.
Merete Bilde et al.
Chemical reviews, 115(10), 4115-4156 (2015-05-02)
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