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4-Ethoxy-3-fluorophenylboronic acid

CAS No.
279263-10-4
Chemical Name:
4-Ethoxy-3-fluorophenylboronic acid
Synonyms
AKOS BRN-0575;4-Ethoxy-3-fL;4-Borono-2-fluorophenetole;4-Ethoxy-3-Fluorophenylboronic;(4-ethyl-2-thiophenyl)boronic acid;4-Ethoxy-3-fluorophenylboronic acid;3-FLUORO-4-ETHOXYBENZENEBORONIC ACID;4-ETHOXY-3-FLUOROBENZENEBORONIC ACID;Boronic acid, B-(4-ethoxy-3-fluorophenyl)-;4-Ethoxy-3-fluorophenylboronic Acid (contains varying amounts of Anhydride)
CBNumber:
CB6338044
Molecular Formula:
C8H10BFO3
Molecular Weight:
183.97
MDL Number:
MFCD04115667
MOL File:
279263-10-4.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-09-12 18:54:13

4-Ethoxy-3-fluorophenylboronic acid Properties

Melting point 108-113 C
Boiling point 328.1±52.0 °C(Predicted)
Density 1.22±0.1 g/cm3(Predicted)
storage temp. Inert atmosphere,Room Temperature
solubility soluble in Methanol
form powder to crystal
pka 7.90±0.10(Predicted)
color White to Almost white
CAS DataBase Reference 279263-10-4(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3
HazardClass  IRRITANT
HS Code  2931900090
NFPA 704
0
2 0

4-Ethoxy-3-fluorophenylboronic acid price More Price(39)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical E1124 4-Ethoxy-3-fluorophenylboronic Acid (contains varying amounts of Anhydride) 279263-10-4 1g $21 2026-04-30 Buy
TCI Chemical E1124 4-Ethoxy-3-fluorophenylboronic Acid (contains varying amounts of Anhydride) 279263-10-4 5g $70 2026-04-30 Buy
Apolloscientific PC2669 4-Ethoxy-3-fluorobenzeneboronic acid ≥95% 279263-10-4 1g $21 2026-06-04 Buy
Activate Scientific AS143642 4-Ethoxy-3-fluorophenylboronic Acid 98% 279263-10-4 1g $24 2026-06-04 Buy
Activate Scientific AS143642 4-Ethoxy-3-fluorophenylboronic Acid 98% 279263-10-4 5g $40 2026-06-04 Buy
Product number Packaging Price Buy
E1124 1g $21 Buy
E1124 5g $70 Buy
PC2669 1g $21 Buy
AS143642 1g $24 Buy
AS143642 5g $40 Buy

4-Ethoxy-3-fluorophenylboronic acid Chemical Properties,Uses,Production

Uses

suzuki reaction

Synthesis

Trimethyl borate

121-43-7

4-BROMO-1-ETHOXY-2-FLUOROBENZENE

115467-08-8

4-ETHOXY-3-FLUOROPHENYLBORONIC ACID

279263-10-4

General procedure for the synthesis of 4-ethoxy-3-fluorophenylboronic acid from trimethyl borate and 4-bromo-2-fluorophenylethyl ether: 4-bromo-2-fluorophenylethyl ether (43.8 g) was dissolved in dry tetrahydrofuran (400 ml) and the resulting solution was cooled down to -70 °C. Under nitrogen protection, n-butyllithium (133 ml) was slowly added dropwise and the reaction was stirred at -70 °C for 2 hours. Subsequently, a dry tetrahydrofuran solution of trimethyl borate (64.8 g) was slowly added at the same temperature. The reaction solution was gradually warmed to room temperature and stirring was continued for 16 hours. Upon completion of the reaction, the reaction was quenched by the addition of 2N hydrochloric acid (200 ml) and the reaction mixture was extracted with toluene. The organic layer was washed sequentially with water and saturated aqueous sodium chloride solution and then dried with anhydrous sodium sulfate. After filtration, the filtrate was concentrated under reduced pressure to give a light brown solid. Purification by recrystallization (heptane: toluene=4:1, v/v) gave colorless crystals of 4-ethoxy-3-fluorophenylboronic acid (23.9 g, yield: 65%).

References

[1] Patent: EP2484658, 2012, A1. Location in patent: Page/Page column 44

121-43-7
115467-08-8
279263-10-4
Synthesis of 4-Ethoxy-3-fluorophenylboronic acid from Trimethyl borate and 4-Bromo-1-ethoxy-2-fluorobenzene

4-Ethoxy-3-fluorophenylboronic acid Preparation Products And Raw materials

4-Ethoxy-3-fluorophenylboronic acid Suppliers

Global( 144)Suppliers
Supplier Tel Email Country ProdList Advantage
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81
Wuhan Chemwish Technology Co., Ltd 86-027-67849912 sales@chemwish.com China 35884 56
Adamas Reagent, Ltd. 400-6009262 15618770481 yhx@titansci.com China 14098 59
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Chembon Pharmaceutical Co., Ltd. 028-84252981 18583719936 sales@chembon.com.cn China 854 64
Xi’an chemsoar Medical Technology Co., ltd 029-86538357 China 234 57
T&W GROUP 021-61551611 13296011611 contact@trustwe.com China 9884 58
TOKYO CHEMICAL INDUSTRY CO., LTD. 03-36680489 Sales-JP@TCIchemicals.com Japan 28364 80
TCI Europe 320-37350700 sales@tcieurope.eu Europe 23654 75

View Lastest Price from 4-Ethoxy-3-fluorophenylboronic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-ETHOXY-3-FLUOROPHENYLBORONIC ACID pictures 2019-07-06 4-ETHOXY-3-FLUOROPHENYLBORONIC ACID
279263-10-4
$1.00 1KG 97%-99% 1kg; 5kg; 100kg Career Henan Chemical Co

4-Ethoxy-3-fluorophenylboronic acid Spectrum

AKOS BRN-0575 4-ETHOXY-3-FLUOROBENZENEBORONIC ACID 3-FLUORO-4-ETHOXYBENZENEBORONIC ACID 4-Ethoxy-3-Fluorophenylboronic 4-Ethoxy-3-fluorophenylboronic Acid (contains varying amounts of Anhydride) 4-Borono-2-fluorophenetole (4-ethyl-2-thiophenyl)boronic acid 4-Ethoxy-3-fL Boronic acid, B-(4-ethoxy-3-fluorophenyl)- 4-Ethoxy-3-fluorophenylboronic acid 279263-10-4 C2H5OC6H3FBOH2 C8H10BFO3 Organometallic Reagents Aryl Boronic Acids and Derivatives Boronic Acids Aryl Boronic acid Organoborons Boronic Acids Boronic Acids and Derivatives Boronic Acids blocks BoronicAcids FluoroCompounds