2-BROMO-2'-METHOXYACETOPHENONE
- Product Name
- 2-BROMO-2'-METHOXYACETOPHENONE
- CAS No.
- 31949-21-0
- Chemical Name
- 2-BROMO-2'-METHOXYACETOPHENONE
- Synonyms
- AKOS BBS-00003867;O-METHOXYPHENACYL BROMIDE;2-METHOXYPHENACYL BROMIDE;2'-METHOXYPHENACYL BROMIDE;2-Methoxyphenacylbromide97%;A-BROMO-O-METHOXYACETOPHENONE;2-Methoxyphenacyl bromide 98%;2-BROMO-2'-METHOXYACETOPHENONE;α-Bromo-2'-methoxyacetophenone;2'-Methoxy-α-bromoacetophenone
- CBNumber
- CB4350095
- Molecular Formula
- C9H9BrO2
- Formula Weight
- 229.07
- MOL File
- 31949-21-0.mol
2-BROMO-2'-METHOXYACETOPHENONE Property
- Melting point:
- 43-45 °C(lit.)
- Boiling point:
- 130 °C1 mm Hg(lit.)
- Density
- 1.4921 (rough estimate)
- refractive index
- 1.5500 (estimate)
- Flash point:
- >230 °F
- storage temp.
- 2-8°C
- form
- Crystalline Powder or Crystals
- color
- White to off-white
- Water Solubility
- Insoluble in water.
- Sensitive
- Lachrymatory
- BRN
- 1938788
- InChI
- InChI=1S/C9H9BrO2/c1-12-9-5-3-2-4-7(9)8(11)6-10/h2-5H,6H2,1H3
- InChIKey
- GKNCPTLOPRDYMH-UHFFFAOYSA-N
- SMILES
- C(=O)(C1=CC=CC=C1OC)CBr
- CAS DataBase Reference
- 31949-21-0(CAS DataBase Reference)
Safety
- Hazard Codes
- C,T
- Risk Statements
- 34
- Safety Statements
- 22-26-36/37/39-45
- RIDADR
- UN 3261 8/PG 2
- WGK Germany
- 3
- Hazard Note
- Lachrymatory/Toxic/Keep Cold
- HazardClass
- 8
- PackingGroup
- III
- HS Code
- 29147000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H314Causes severe skin burns and eye damage
- Precautionary statements
-
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P363Wash contaminated clothing before reuse.
N-Bromosuccinimide Price
- Product number
- 100854
- Product name
- 2-Bromo-2′-methoxyacetophenone
- Purity
- 98%
- Packaging
- 5g
- Price
- $201
- Updated
- 2025/07/31
- Product number
- 100854
- Product name
- 2-Bromo-2′-methoxyacetophenone
- Purity
- 98%
- Packaging
- 1g
- Price
- $73
- Updated
- 2023/06/20
- Product number
- 100854
- Product name
- 2-Bromo-2′-methoxyacetophenone
- Purity
- 98%
- Packaging
- 10g
- Price
- $159
- Updated
- 2025/07/31
- Product number
- B687495
- Product name
- 2-Bromo-2''-methoxyacetophenone
- Packaging
- 10g
- Price
- $250
- Updated
- 2021/12/16
- Product number
- 2617-9-Y4
- Product name
- 2-Methoxyphenacyl bromide
- Purity
- 97%
- Packaging
- 5G
- Price
- $40
- Updated
- 2021/12/16
2-BROMO-2'-METHOXYACETOPHENONE Chemical Properties,Usage,Production
Chemical Properties
White to greyish-green crystalline powder
Uses
2-Bromo-2'-methoxyacetophenone is used as a pharmaceutical intermediate .
Preparation
Also obtained according to the procedure of Buckman (80%).
Synthesis
579-74-8
31949-21-0
The general procedure for the synthesis of o-methoxy-2-bromoacetophenone from 2'-methoxyacetophenone was as follows: copper(II) bromide (2.97 g, 6.66 mmol) was added to a two-necked round-bottomed flask equipped with a reflux condenser. Ethyl acetate (10.0 mL) was added to the flask and the mixture was stirred at 70 °C for 5 min under nitrogen protection. A solution of chloroform (10.0 mL) of 1-(2-methoxyphenyl)ethanone (0.50 g, 3.33 mmol) was slowly added, followed by refluxing the reaction mixture for 8 hours. After completion of the reaction, it was cooled to room temperature, filtered through a diatomaceous earth pad and the filter cake was washed with ethyl acetate (20 mL). The filtrate was concentrated under reduced pressure and the crude product obtained was purified by column chromatography (eluent ratio ethyl acetate:hexane = 1:4) to afford the pure o-methoxy-2-bromoacetophenone (0.73 g, 96% yield) as a brown liquid. Thin layer chromatography Rf value was 0.43 (unfolding agent ratio ethyl acetate:hexane = 1:4); 1H NMR (300 MHz, CDCl3) δ: 7.81 (1H, dd, J = 7.8, 1.8 Hz), 7.52 (1H, td, J = 7.8, 1.8 Hz), 7.05-6.96 (2H, m), 4.61 (2H, s). 3.94 (3H, s); 13C NMR (75 MHz, CDCl3) δ: 192.3, 158.8, 134.9, 131.6, 124.9, 121.2, 111.7, 56.0, 38.0.
References
[1] Bulletin of the Korean Chemical Society, 2017, vol. 38, # 12, p. 1481 - 1485
[2] Tetrahedron Letters, 2006, vol. 47, # 27, p. 4707 - 4710
[3] Tetrahedron Letters, 2009, vol. 50, # 6, p. 700 - 703
[4] Chemistry - A European Journal, 2011, vol. 17, # 28, p. 7953 - 7959
[5] Molecules, 2017, vol. 22, # 5,
2-BROMO-2'-METHOXYACETOPHENONE Preparation Products And Raw materials
Raw materials
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View Lastest Price from 2-BROMO-2'-METHOXYACETOPHENONE manufacturers
- Product
- 2-BROMO-2'-METHOXYACETOPHENONE 31949-21-0
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 200kg
- Release date
- 2020-01-03