(5-Chloro-1H-indol-2-yl)boronic acid(CAS: 282528-62-5)

(5-Chloro-1H-indol-2-yl)boronic acid is a crystalline solid with a molecular weight of approximately 221.05 g/mol. It has a melting point of 129-131°C and is slightly soluble in water. Chemically, it is reactive with nucleophiles and can participate in various organic reactions such as Suzuki couplings. Its solubility and reactivity make it a valuable reagent in organic synthesis.

(5-Chloro-1H-indol-2-yl)boronic acid is commonly synthesized through a two-step process. First, (5-Chloro-2-indolyl)boronic acid can be prepared from 5-chloroindole using a boronic anhydride. Second, this intermediate undergoes a Suzuki coupling reaction with a boronic acid or ester under the presence of a palladium catalyst. The yield is typically high, and the method is highly selective.

(5-Chloro-1H-indol-2-yl)boronic acid is predominantly used in the pharmaceutical industry for the synthesis of complex organic compounds. It also finds applications in polymer chemistry for the preparation of functional polymers and in the development of sensors and semiconductors.

When handling (5-Chloro-1H-indol-2-yl)boronic acid, it is essential to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. Work should be conducted in a fume hood to minimize exposure to the compound. Spills should be cleaned up immediately using appropriate cleaning agents, and spills should be reported to the safety officer. Always consult the Material Safety Data Sheet (MSDS) for additional safety information.