Metal-free regioselective B-O coupling in carboranes for constructing aggregation-induced emission luminogens.

Area of Science:

• Organometallic Chemistry
• Materials Science
• Organic Synthesis

Background:

• Carboranes are versatile boron-containing clusters with unique electronic and structural properties.
• Developing efficient synthetic routes to functionalized carboranes is crucial for exploring their applications.
• Aggregation-induced emission (AIE) materials offer promising applications in sensing and imaging.

Purpose of the Study:

• To develop a novel metal-free synthetic method for regioselective B-O coupling of nido-carboranes.
• To establish a new platform for synthesizing carborane-based AIE luminogens.

Main Methods:

• Utilized hypervalent iodine(III) reagents for the B-O coupling reaction.
• Employed mild reaction conditions.
• Investigated the regioselectivity of the coupling process.

Main Results:

• Achieved efficient and regioselective B-O coupling of nido-carboranes.
• Demonstrated the utility of the method for synthesizing carborane-based AIE luminogens.
• The reaction proceeds under mild, metal-free conditions.

Conclusions:

• The developed hypervalent iodine(III)-mediated B-O coupling offers a new, efficient, and mild synthetic strategy for carborane functionalization.
• This method provides a valuable platform for the rapid construction of novel carborane-based AIE materials with potential applications in optoelectronics.