Chemists have found a clever way to add boron to certain types of molecules. They used a special copper-based catalyst to make this happen. This catalyst is made with a bulky guanidine ligand. It is a type of molecule that helps the copper do its job. This process is called protoborylation. It is a fancy word for adding a boron-hydrogen bond to a molecule.

The process worked well with many different types of molecules. It showed a strong preference for creating a specific type of product. This product is called a branched borylation product. The selectivity was impressive, ranging from 86:14 to 97:3. This means that for every 100 molecules that reacted, 86 to 97 were the desired product.

The reaction happened at room temperature. This is a big deal because it makes the process easier and safer. It also means that the products can be made in large quantities. This is important for making useful compounds. These compounds can be used in many different ways. For example, they can be used to make medicines or materials for electronics.

The way this reaction works is interesting. The copper-guanidine complex helps the boron insert into a carbon-carbon double bond. This is a type of bond found in many molecules. The researchers did some experiments to figure out how this happens. They found that it does not happen through a process called diboration-protodeboronation. This is a different way that boron can be added to a molecule.

The ability to add boron to molecules in this way is important. Boron is a useful element in chemistry. It can be used to make many different types of compounds. These compounds have many different uses. For example, they can be used to make medicines, materials for electronics, and more. This new method of adding boron to molecules could lead to new discoveries in chemistry. It could also lead to new products that we use every day.

Copper's Surprising Role in Boron Chemistry

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