5-bromo-4-fluoro-1H-indazole
- Product Name
- 5-bromo-4-fluoro-1H-indazole
- CAS No.
- 1082041-85-7
- Chemical Name
- 5-bromo-4-fluoro-1H-indazole
- Synonyms
- Orforglipron Impurity 6;Orforglipron impurity 31;5-Bromo-4-fluoro-Indazole;5-bromo-4-fluoro-1H-indazole;1H-Indazole,5-broMo-4-fluoro-
- CBNumber
- CB22594615
- Molecular Formula
- C7H4BrFN2
- Formula Weight
- 215.02
- MOL File
- 1082041-85-7.mol
5-bromo-4-fluoro-1H-indazole Property
- Boiling point:
- 332.2±22.0 °C(Predicted)
- Density
- 1.861±0.06 g/cm3(Predicted)
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- pka
- 11.95±0.40(Predicted)
- form
- solid
- color
- Off-white to brown
- InChI
- InChI=1S/C7H4BrFN2/c8-5-1-2-6-4(7(5)9)3-10-11-6/h1-3H,(H,10,11)
- InChIKey
- YJOQUFUSNSCGHN-UHFFFAOYSA-N
- SMILES
- N1C2=C(C(F)=C(Br)C=C2)C=N1
Safety
- HS Code
- 2933998090
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.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
N-Bromosuccinimide Price
- Product number
- B803483
- Product name
- 5-Bromo-4-fluoro-1H-indazole
- Packaging
- 10mg
- Price
- $45
- Updated
- 2021/12/16
- Product number
- B803483
- Product name
- 5-Bromo-4-fluoro-1H-indazole
- Packaging
- 100mg
- Price
- $240
- Updated
- 2021/12/16
- Product number
- PC500202
- Product name
- 5-Bromo-4-fluoro-1H-indazole
- Purity
- 95%
- Packaging
- 250mg
- Price
- $62
- Updated
- 2021/12/16
- Product number
- PC500202
- Product name
- 5-Bromo-4-fluoro-1H-indazole
- Purity
- 95%
- Packaging
- 1g
- Price
- $97
- Updated
- 2021/12/16
- Product number
- Y5170
- Product name
- 5-Bromo-4-fluoro-1H-indazole
- Packaging
- 1g
- Price
- $180
- Updated
- 2021/12/16
5-bromo-4-fluoro-1H-indazole Chemical Properties,Usage,Production
Uses
5-Bromo-4-fluoro-1H-indazole is a chemical intermediate that can be used to synthesize 3-fluoro-2-methylaniline.
Preparation
5-bromo-4-fluoro-1H-indazole can be obtained by the bromination of 4,5-dichloroindazole with NBS as a reagent.
Synthesis
127408-03-1
1082041-85-7
General procedure for the synthesis of 5-bromo-4-fluoro-1H-indazole from 4-bromo-3-fluoro-2-methylaniline: to a stirred solution of 4-bromo-3-fluoro-2-methylaniline (15.0 g, 73.5 mmol) in acetic acid (200 mL) was added sodium nitrite (10 g, 147 mmol) in batches at 10 °C. The reaction mixture was stirred at room temperature for 16 hours. Upon completion of the reaction, a 50% aqueous NaOH solution was added dropwise to the reaction mixture under vigorous stirring at -10 °C until the pH reached 7-8. Subsequently, the mixture was extracted with ethyl acetate. The organic layer was dried with anhydrous sodium sulfate and concentrated under reduced pressure to give the crude product. The crude product was purified by silica gel column chromatography (eluent: 0-40% hexane solution of ethyl acetate) to afford 5-bromo-4-fluoro-1H-indazole (10 g, 63% yield) as an off-white solid.LCMS retention time was 3.03 min and the molecular ion peak MH+ 214.1H NMR (400 MHz, CDCl3) δ 10.44 (broad single peak, 1H), δ 8.14 (single peak, 1H), 7.49-7.45 (multiple peaks, 1H), 7.19 (double peak, J = 8.76Hz, 1H).
References
[1] Patent: WO2018/130853, 2018, A1. Location in patent: Page/Page column 26
[2] Patent: US2012/71535, 2012, A1. Location in patent: Page/Page column 51
[3] Patent: WO2013/142266, 2013, A1. Location in patent: Paragraph 00487
[4] Journal of Medicinal Chemistry, 2014, vol. 57, # 12, p. 5129 - 5140
[5] Patent: US2016/347717, 2016, A1. Location in patent: Page/Page column 0293; 0294
5-bromo-4-fluoro-1H-indazole Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 5-bromo-4-fluoro-1H-indazole manufacturers
- Product
- 5-bromo-4-fluoro-1H-indazole 1082041-85-7
- Price
- US $0.00-0.00/KG
- Min. Order
- 5mg
- Purity
- 99%HPLC
- Supply Ability
- 2000tons
- Release date
- 2020-01-06
- Product
- 1H-Indazole,5-broMo-4-fluoro- 1082041-85-7
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 85.0-99.8%
- Supply Ability
- 200kgs
- Release date
- 2020-01-16