(2-Phenylethyl)boronic acid(CAS: 34420-17-2)

(2-Phenylethyl)boronic acid is a white crystalline solid with a molecular weight of approximately 172.24 g/mol. It has a low solubility in water (0.05 g/100 mL at 20°C) and is moderately soluble in organic solvents. It is reactive towards nucleophiles and can participate in various organo-boron reactions.

(2-Phenylethyl)boronic acid can be synthesized by the reaction of phenylethyl bromide with sodium borohydride followed by treatment with boronic acid. The process involves the use of anhydrous conditions and appropriate solvents to ensure high yield and selectivity. This synthetic route is commonly used in organic chemistry laboratories and industry.

(2-Phenylethyl)boronic acid is used in the pharmaceutical industry for the synthesis of drugs, particularly those involving multi-component condensation reactions. It is also utilized in the polymer industry for the preparation of functional polymers, and in the semiconductor industry for the fabrication of sensors and other electronic devices.

When handling (2-Phenylethyl)boronic acid, it is important to wear appropriate personal protective equipment (PPE) including gloves and safety glasses. Work should be conducted in a well-ventilated area or a fume hood. Spills should be cleaned up immediately with proper absorbent materials, and the area should be decontaminated. Always refer to a material safety data sheet (MSDS) for detailed safety information.