Name | 2-Bromoacetophenone |
Synonyms | Phenacyl bromide Bromoacetylbenzene 2-Bromoacetophenone w-Bromoacetophenone α-bromo acetophenone 2-Bromo acetophenone 1-(Bromoacetyl)benzene alpha-Bromoacetophenone roxylamine hydrochloride 2-Bromo-1-phenylethanone ω-Bromoacetophenone, Phenacyl bromide 2-Bromoacetophenone, 2-Bromo-1-phenylethan-1-one 2-Bromoacetophenone,ω-Bromoacetophenone, Phenacyl bromide |
CAS | 70-11-1 |
EINECS | 200-724-9 |
InChI | InChI=1/C8H7BrO/c9-6-8(10)7-4-2-1-3-5-7/h1-5H,6H2 |
InChIKey | LIGACIXOYTUXAW-UHFFFAOYSA-N |
Molecular Formula | C8H7BrO |
Molar Mass | 199.04 |
Density | 1.476 |
Melting Point | 48-51 °C (lit.) |
Boling Point | 135 °C/18 mmHg (lit.) |
Flash Point | >230°F |
Water Solubility | PRACTICALLY INSOLUBLE |
Solubility | Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly) |
Vapor Presure | 0.0184mmHg at 25°C |
Appearance | Crystals or Powder |
Color | White to dark green-brown |
Merck | 14,1402 |
BRN | 606474 |
Storage Condition | 2-8°C |
Stability | Stable. Incompatible with strong bases, strong oxidizing agents. Combustible. |
Refractive Index | 1.5700 (estimate) |
Physical and Chemical Properties | Melting Point: 48 - 51 ℃ Boiling Point: 135 at 18mm Hg |
Use | Used as a pharmaceutical Intermediate |
Hazard Symbols | C - Corrosive |
Risk Codes | R34 - Causes burns R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) |
UN IDs | UN 2645 6.1/PG 2 |
WGK Germany | 3 |
FLUKA BRAND F CODES | 8-19 |
TSCA | Yes |
HS Code | 29143990 |
Hazard Note | Corrosive |
Hazard Class | 6.1 |
Packing Group | II |
white crystals. Melting Point 51 °c. Boiling point of 135 deg C (2. 40kPa). Refractive index (15 °c). Insoluble in water, soluble in ethanol, ether, chloroform and benzene. With the formation of high manganese acid benzoic acid.
obtained by bromination of acetophenone, in addition, acetophenone and bromine in the presence of aluminum oxide can also be obtained, the yield of 94%.
This product is a raw material for organic synthesis, used in the pharmaceutical industry for the preparation of hemostatic speed, etc., and thiourea can be used to synthesize a-amino -4-phenyl thiazole.
NIST chemical information | information provided by: webbook.nist.gov (external link) |
EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
purpose | This product is a raw material for organic synthesis and an intermediate for medicine and dye. In the pharmaceutical industry for the preparation of hemostatic speed, etc., and thiourea can be synthesized alpha-amino -4-phenyl thiazole. used as pharmaceutical intermediates organic synthesis raw materials, pharmaceutical industry used in the preparation of hemostatic speed, synthesis of α-amino -4-phenyl thiazole by interaction with thiourea |
production method | is obtained by bromination of acetophenone. Add water and benzene to the reaction pan, stir, quickly add bromine at 25 ℃, slowly raise the temperature to 55-60 ℃, react for 10-20min, add ice water, cool to 0-5 ℃, spin filter, the filter cake was washed with ice water and spin dried to obtain bromoacetophenone. The yield was 92%. In the course of the above reaction, the reaction pot can make a loud noise. It is also possible to react acetophenone Dropwise with bromine in an ether solvent and add anhydrous aluminum trichloride to the reaction solution. The crude product was obtained in 88-96% yield. In addition, acetophenone and bromine in the presence of aluminum oxide can also be obtained, the yield of 94%. |
category | toxic substances |
flammability hazard characteristics | open flame flammable; Thermal decomposition of toxic bromide gas |
storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; Storage and transportation are separated from oxidant and food raw materials |
fire extinguishing agent | carbon dioxide, sand, foam |