2,3-Dibromofuran-5-carboxylic acid
- Product Name
- 2,3-Dibromofuran-5-carboxylic acid
- CAS No.
- 2434-03-9
- Chemical Name
- 2,3-Dibromofuran-5-carboxylic acid
- Synonyms
- 4,5-dibromofuran-2-carboxylic acid;4,5-DIBROMO-2-FUROIC ACID;4,5-Dibromo-2-furoicacid,97%;4,5-DibroMo-2-furoic acid 97%;4,5-Dibromo-2-furancarboxylic acid;2,3-DIBROMOFURAN-5-CARBOXYLIC ACID;2-Furancarboxylic acid, 4,5-dibromo-
- CBNumber
- CB0727518
- Molecular Formula
- C5H2Br2O3
- Formula Weight
- 269.88
- MOL File
- 2434-03-9.mol
2,3-Dibromofuran-5-carboxylic acid Property
- Melting point:
- 169-173 °C
- Boiling point:
- 328.7±42.0 °C(Predicted)
- Density
- 2.304±0.06 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- form
- solid
- pka
- 2.58±0.16(Predicted)
- Appearance
- White to off-white Solid
- BRN
- 129312
- InChI
- InChI=1S/C5H2Br2O3/c6-2-1-3(5(8)9)10-4(2)7/h1H,(H,8,9)
- InChIKey
- BHUVICYZDBUMIU-UHFFFAOYSA-N
- SMILES
- O1C(Br)=C(Br)C=C1C(O)=O
- CAS DataBase Reference
- 2434-03-9(CAS DataBase Reference)
Safety
- Hazard Codes
- Xn
- Risk Statements
- 22-36/37/38
- Safety Statements
- 26-36
- WGK Germany
- 3
- HS Code
- 2932190090
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 656291
- Product name
- 4,5-Dibromo-2-furoic acid
- Purity
- 97%
- Packaging
- 5g
- Price
- $102
- Updated
- 2025/07/31
- Product number
- 656291
- Product name
- 4,5-Dibromo-2-furoic acid
- Purity
- 97%
- Packaging
- 25g
- Price
- $149
- Updated
- 2025/07/31
- Product number
- D426468
- Product name
- 4,5-Dibromofuran-2-carboxylicAcid
- Packaging
- 500mg
- Price
- $60
- Updated
- 2021/12/16
- Product number
- D426468
- Product name
- 4,5-Dibromofuran-2-carboxylicAcid
- Packaging
- 1g
- Price
- $75
- Updated
- 2021/12/16
- Product number
- FD139986
- Product name
- 4,5-Dibromo-2-furoic acid
- Packaging
- 5G
- Price
- $76
- Updated
- 2021/12/16
2,3-Dibromofuran-5-carboxylic acid Chemical Properties,Usage,Production
Uses
2,3-Dibromofuran-5-carboxylic acid is used in a study of the effect of a furanyl halo-substituent on the intramolecular Diels-Alder reaction between the furan ring system and a pendant allylamide. The yield of the cycloaddition is improved with a C-5 bromide vs -chloro or -unsubstituted furan.
Synthesis
54113-41-6
2434-03-9
Step B: Synthesis of 4,5-dibromo-2-furoic acid. Methyl 4,5-dibromofuran-2-carboxylate (26.19 g, 92.2 mmol) was suspended in THF (60 mL) followed by addition of LiOH (3 M aqueous solution, 60 mL, 180 mmol). The resulting two-phase mixture was stirred at room temperature for 4 hours. Upon completion of the reaction, the mixture was slowly poured into 1 N HCl solution and extracted with dichloromethane (DCM, 4 x 60 mL). The organic phases were combined, dried over anhydrous sodium sulfate and concentrated under reduced pressure to give 24.59 g (99% yield) of the target product 4,5-dibromo-2-furoic acid as an off-white solid. The product was characterized by 1H NMR (CD3OD): δ 7.30 (s, 1H).
References
[1] Patent: WO2008/124518, 2008, A1. Location in patent: Page/Page column 18
[2] Patent: US2006/69286, 2006, A1. Location in patent: Page/Page column 25
[3] Chemical and Pharmaceutical Bulletin, 1997, vol. 45, # 5, p. 799 - 806
[4] European Journal of Organic Chemistry, 1999, # 9, p. 2045 - 2057
2,3-Dibromofuran-5-carboxylic acid Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,3-Dibromofuran-5-carboxylic acid manufacturers
- Product
- 2,3-Dibromofuran-5-carboxylic acid 2434-03-9
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-08-11