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Conditions | Yield |
---|---|
With potassium hydroxide In ethanol at 40℃; for 1h; | 70% |
With potassium hydroxide In ethanol Heating; | 56% |
With potassium hydroxide at 60℃; |
Conditions | Yield |
---|---|
With N,N-dimethyl-formamide; potassium bromide; trichlorophosphate In acetonitrile at 20℃; Reagent/catalyst; Sonication; | 60% |
diethyl ether
1,1,2-tribromoethane
A
bromobenzene
B
Vinyl bromide
C
biphenyl
D
benzene
Conditions | Yield |
---|---|
Zersetzen des Reaktionsproduktes mit Wasser; |
Conditions | Yield |
---|---|
With diethyl ether; phenylmagnesium bromide und Zers. des Reaktionsproduktes mit Wasser; |
1,4-dibenzyl-2,2,5,5-tetramethyl-piperazine
ethylene dibromide
A
Vinyl bromide
Conditions | Yield |
---|---|
at 120 - 125℃; |
Conditions | Yield |
---|---|
With hydrogen bromide; copper(I) bromide at 60℃; | |
With pyridine-base; hydrogen bromide; cadmium(II) bromide at 215 - 230℃; | |
With BaBr2-charcoal; hydrogen bromide at 200℃; |
The CAS registry number of Vinyl bromide is 593-60-2. Its EINECS registry number is 209-800-6. The IUPAC name is bromoethene. In addition, the molecular formula is C2H3Br and the molecular weight is 106.95. It is also called Ethene,bromo-. What's more, it is a kind of colourless liquid and belongs to the classes of Gas Cylinders; Halides (low boiling point); omega-Functional Alkanols, Carboxylic Acids, Amines & Halides; omega-Unsaturated Halides; Synthetic Organic Chemistry. And it is soluble in chloroform, ethanol, diethyl ether.
Physical properties about this chemical are: (1)ACD/LogP: 1.57; (2)ACD/LogD (pH 5.5): 1.57; (3)ACD/LogD (pH 7.4): 1.57; (4)ACD/BCF (pH 5.5): 9.188; (5)ACD/BCF (pH 7.4): 9.188; (6)ACD/KOC (pH 5.5): 170.247; (7)ACD/KOC (pH 7.4): 170.247 ; (8)Index of Refraction: 1.45; (9)Molar Refractivity: 18.772 cm3; (10)Molar Volume: 69.824 cm3; (11)Polarizability: 7.442 ×10-24cm3; (12)Surface Tension: 22.973 dyne/cm; (13)Density: 1.532 g/cm3; (14)Enthalpy of Vaporization: 25.223 kJ/mol; (15)Boiling Point: 15.799 °C at 760 mmHg; (16)Vapour Pressure: 1051.361 mmHg at 25°C.
Preparation of Vinyl bromide: it can be prepared by 1,2-dibromo-ethane. This reaction will need reagent KOH and solvent ethanol. The yield is about 56% by heating.
Uses of Vinyl bromide: this chemical is used to manufacture bromopolymers and mainly polyvinyl bromide. Further it is used as an alkylation agent. In addition, it can be used to get 1,1,2-tribromo-ethane. This reaction will need reagent Br2 and solvent CHCl3. The reaction time is 12 hours at reaction temperature of 20 °C. The yield is about 87%.
When you are using this chemical, please be cautious about it as the following:
This chemical is extremely flammable and may form explosive peroxides. And it is irritating to eyes and respiratory system. Moreover, it may cause cancer. You should avoid exposure - obtain special instruction before use. During using it, you should not empty into drains. In case of accident or if you feel unwell, seek medical advice immediately (show label where possible). And you should keep container in a well-ventilated place and keep away from sources of ignition - No smoking. Moreover, take precautionary measures against static discharges.
You can still convert the following datas into molecular structure:
(1)SMILES: C=CBr
(2)InChI: InChI=1/C2H3Br/c1-2-3/h2H,1H2
(3)InChIKey: INLLPKCGLOXCIV-UHFFFAOYAI
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
rat | LCLo | inhalation | 50000ppm/7H (50000ppm) | "Documentation of the Threshold Limit Values and Biological Exposure Indices," 5th ed., Cincinnati, OH, American Conference of Governmental Industrial Hygienists, Inc., 1986Vol. 6, Pg. 1690, 1991. | |
rat | LD50 | oral | 500mg/kg (500mg/kg) | Dow Chemical Company Reports. Vol. -, Pg. 12, 1966. |