4-Chlorophenylboronic acid
4-Chlorophenylboronic acid, identified by CAS number 1679-18-1, is a versatile organoboron compound widely utilized in modern synthetic chemistry. Appearing as a white to off-white crystalline solid, it serves as a crucial arylating agent. Its chemical structure features a benzene ring substituted with a chlorine atom at the para position and a boronic acid functional group, providing a specific reactive handle for forming carbon-carbon bonds.
This compound is valued for its stability and ease of handling compared to many other organometallic reagents. In research and industrial settings, it acts as a fundamental building block for the construction of complex molecular architectures. Proper storage in a cool, dry environment is recommended to maintain its chemical integrity, as boronic acids can undergo dehydration to form cyclic anhydrides or boroxines over time.
• The primary application of 4-Chlorophenylboronic acid is as a key substrate in Suzuki-Miyaura cross-coupling reactions. It reacts with various aryl or vinyl halides in the presence of a palladium catalyst to facilitate the formation of biaryl compounds, which is essential for the synthesis of agrochemicals and functional polymers.
• In the field of medicinal chemistry research, this reagent serves as a critical intermediate for the development of bioactive molecules. The chlorine substituent at the para position is a desirable feature in drug design, often influencing the lipophilicity and metabolic stability of potential therapeutic candidates during lead optimization.
• Beyond traditional cross-coupling, this compound is utilized in Chan-Lam coupling reactions to form carbon-heteroatom bonds. It can react with nucleophiles such as amines, phenols, or thiols under copper catalysis to produce N-aryl, O-aryl, or S-aryl derivatives, making it indispensable for synthesizing complex heterocyclic frameworks.
• It also finds utility in the preparation of boronic acid-functionalized materials, including polymers and surface coatings. These materials are investigated for their ability to bind reversibly to saccharides or other diol-containing compounds, supporting the development of analytical tools and separation technologies.
Product Name: 4-Chlorophenylboronic acid
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