3-Difluoromethyl-phenylboronic acid

3-Difluoromethyl-phenylboronic acid - Names and Identifiers

Name	[3-(difluoromethyl)phenyl]boronic acid
Synonyms	3-Difluoromethyl-phenylboronic acid [3-(difluoromethyl)phenyl]boronic acid Boronic acid, B-[3-(difluoromethyl)phenyl]- boronic acid, B-[3-(difluoromethyl)phenyl]-
CAS	854690-87-2
InChI	InChI=1/C7H7BF2O2/c9-7(10)5-2-1-3-6(4-5)8(11)12/h1-4,7,11-12H

3-Difluoromethyl-phenylboronic acid - Physico-chemical Properties

Molecular Formula	C7H7BF2O2
Molar Mass	171.94
Density	1.27±0.1 g/cm3(Predicted)
Boling Point	297.4±50.0 °C(Predicted)
Flash Point	133.7°C
Vapor Presure	0.000608mmHg at 25°C
pKa	7.79±0.10(Predicted)
Storage Condition	under inert gas (nitrogen or Argon) at 2-8°C
Refractive Index	1.479

3-Difluoromethyl-phenylboronic acid - Introduction

[3-(difluoromethyl)phenyl]boronic acid is an organic boron compound with the chemical formula C7H6BF2O2. It is a white crystalline solid with good stability under normal temperature and pressure.

[3-(difluoromethyl)phenyl]boronic acid is mainly used for reductive coupling reactions in organic synthesis. It can be reacted with an organohalogen or sulfonyl fluoride to give the corresponding arylboronic acid ester. These aryl boronic esters are useful as important intermediates for the preparation of pharmaceuticals, pesticides and other organic compounds.

the preparation of [3-(difluoromethyl)phenyl]boronic acid usually uses boric acid to react with 3-(difluoromethyl)phenyl magnesium solution to generate the target product. The specific steps are as follows: first, under an inert atmosphere, boric acid is dissolved in dry anhydrous tetrahydrofuran; then, 3-(difluoromethyl) phenylmagnesium solution is slowly added dropwise to the boric acid solution and stirred in the reaction solution for several hours; finally, [3-(difluoromethyl)phenyl]boronic acid is obtained by filtration and washed with anhydrous ethanol, and finally dried.

[3-(difluoromethyl)phenyl] Safety information for boronic acid has not been clearly reported. However, as an organoboron compound, when used in laboratory and industrial environments, appropriate protective measures should be taken, such as wearing gloves, goggles and respiratory protective equipment. At the same time, avoid contact with skin, eyes, etc., and ensure that the operation area is well ventilated.

Last Update：2024-04-09 21:11:58