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4-Amino-3-fluorophenylboronic acid, pinacol ester

Product Name
4-Amino-3-fluorophenylboronic acid, pinacol ester
CAS No.
819058-34-9
Chemical Name
4-Amino-3-fluorophenylboronic acid, pinacol ester
Synonyms
2-fluoro-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)aniline;2-fluoro-4-(4;3-Amino-5-pyridineboronic acid pinalcol ester;4-Amino-3-fluorophenylboronic acid, pinacol ester;4-AMino-3-fluorobenzeneboronic acid pinacol ester, 96%;4-Amino-3-fluorophenylboronic acid pinacol ester, 97%,;2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)anil...;2-fluoro-4-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)benzenaMine;2-Fluoro-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)phenylamine;Benzenamine, 2-fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-
CBNumber
CB01486481
Molecular Formula
C12H17BFNO2
Formula Weight
237.08
MOL File
819058-34-9.mol
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4-Amino-3-fluorophenylboronic acid, pinacol ester Property

Melting point:
102-104°C
Boiling point:
334℃
Density 
1.11
Flash point:
156℃
storage temp. 
Keep in dark place,Sealed in dry,Room Temperature
solubility 
Chloroform (Sparingly), DMSO (Sparingly), Methanol (Slightly)
pka
2.84±0.10(Predicted)
form 
Solid
color 
Pale Orange to Light Brown
Sensitive 
Air Sensitive
InChIKey
AIXGNRNTXUKZLC-UHFFFAOYSA-N
CAS DataBase Reference
819058-34-9
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Safety

Hazard Codes 
Xn
Risk Statements 
22
HS Code 
2931900090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
BML00187
Product name
4-Amino-3-fluorophenylboronic acid pinacol ester
Purity
Aldrich
Packaging
1g
Price
$179
Updated
2025/07/31
TRC
Product number
A633268
Product name
4-Amino-3-fluorophenylboronic acid pinacol ester
Packaging
1g
Price
$120
Updated
2021/12/16
TRC
Product number
A633268
Product name
4-Amino-3-fluorophenylboronic acid pinacol ester
Packaging
250mg
Price
$55
Updated
2021/12/16
AK Scientific
Product number
X2273
Product name
4-Amino-3-fluorophenylboronic acid pinacol ester
Packaging
250mg
Price
$32
Updated
2021/12/16
Matrix Scientific
Product number
076514
Product name
4-Amino-3-fluorophenylboronic acid pinacol ester
Purity
95+%
Packaging
5g
Price
$899
Updated
2021/12/16
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4-Amino-3-fluorophenylboronic acid, pinacol ester Chemical Properties,Usage,Production

Synthesis

29632-74-4

73183-34-3

819058-34-9

General procedure for the synthesis of 4-amino-3-fluorophenylboronic acid pinacol ester from 2-fluoro-4-iodoaniline and bis(pinacolato) borate: 1. 2-Fluoro-4-iodoaniline (5.0 g, 21.1 mmol) and bis(pinacolato)ethylborane (5.89 g, 23.2 mmol) were dissolved in 130 mL of DMSO under argon protection. 2. Potassium acetate (6.21 g, 63.3 mmol) was added and argon was continuously passed for 10 minutes to exclude oxygen. 3. a 1:1 complex of [1,1'-bis(diphenylphosphino)ferrocene]palladium(II) dichloride (1.21 g, 1.50 mmol) with dichloromethane was added, and the reaction mixture was heated at 85 °C for 4.5 hours. 4. After the reaction was complete, it was cooled to room temperature and diluted with 500 mL of water. 5. The mixture was extracted with ethyl acetate (3 x 200 mL), the organic phases were combined, washed with water, dried over anhydrous sodium sulfate, and then concentrated to dryness under reduced pressure. 6. The crude product was purified by silica gel column chromatography with cyclohexane/ethyl acetate (90/10, v/v) as eluent. 7. 3.73 g of white powder was obtained in 75% yield. 8. The product had a melting point of 11.0%. 8. The melting point of the product was 112 °C. 9. 9. 1H NMR (400 MHz, CDCl3) data: δ (ppm): 1.2 (s, 12H); 3.8 (br s, 2H); 6.55 (t, 1H, J=7Hz); 7.25-7.35 (m, 2H).

References

[1] Patent: US2013/178472, 2013, A1. Location in patent: Paragraph 0239; 0240
[2] Patent: WO2008/32086, 2008, A1. Location in patent: Page/Page column 110
[3] Patent: WO2006/113432, 2006, A2. Location in patent: Page/Page column 66
[4] Patent: WO2008/32086, 2008, A1. Location in patent: Page/Page column 110

4-Amino-3-fluorophenylboronic acid, pinacol ester Preparation Products And Raw materials

Raw materials

Preparation Products

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4-Amino-3-fluorophenylboronic acid, pinacol ester Suppliers

R&D Scientific Inc.
Tel
+1-2266000236
Email
sales@rdscientific.com
Country
Canada
ProdList
1920
Advantage
58
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View Lastest Price from 4-Amino-3-fluorophenylboronic acid, pinacol ester manufacturers

Henan Fengda Chemical Co., Ltd
Product
4-Amino-3-fluorophenylboronic acid, pinacol ester 819058-34-9
Price
US $10.00-2.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
g-kg-tons, free sample is available
Release date
2024-04-28
Career Henan Chemical Co
Product
4-Amino-3-fluorophenylboronic acid, pinacol ester 819058-34-9
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
100KG
Release date
2019-12-25

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