Scientists find new way to break and rebuild carbon bonds, opening door to better drug molecules

A team of chemists has developed a new method to create stronger, more complex carbon-based molecules. The technique, called "stereoretentive decarbonylative cross-coupling," allows scientists to break a carbon-oxygen bond and then join two carbon atoms together in a precise, three-dimensional shape. This matters because many drugs and advanced materials rely on the exact arrangement of atoms. Until now, creating these specific carbon-carbon bonds was difficult and often destroyed the molecule’s shape. The new method preserves the original structure—a key advantage for designing effective medicines. The process uses a catalyst, a substance that speeds up the chemical reaction without being used up. By removing a carbon monoxide group from one molecule, the reaction can link it to another carbon atom while keeping the molecule’s three-dimensional orientation unchanged. Researchers say this breakthrough could help pharmaceutical companies produce new drug candidates more efficiently. It also offers a simpler path to making complex natural products and synthetic compounds. The work was published in a leading chemistry journal and is expected to influence future research in organic synthesis and drug discovery.