SKKU Develops New Asymmetric Catalytic Reactions for Complex Molecule Synthesis
- Researchers at Sungkyunkwan University (SKKU) and the Korea Advanced Institute of Science and Technology (KAIST) have developed new asymmetric catalytic methods using chiral organic catalysts to synthesize complex...
- In the first study, led by Professor Do Hyun Ryu's research team at SKKU in collaboration with Professor Hyunwoo Kim's team at KAIST, scientists created a unified catalytic...
- In the second study, Ryu's team focused on constructing tetrahydrofuran ring structures from simple starting materials, as detailed by SKKU.
Researchers at Sungkyunkwan University (SKKU) and the Korea Advanced Institute of Science and Technology (KAIST) have developed new asymmetric catalytic methods using chiral organic catalysts to synthesize complex molecules, according to reports from SKKU. Published in Angewandte Chemie International Edition, the research tackles a long-standing challenge in organic synthesis: controlling multiple reaction sites and stereocenters at the same time to build structures vital for pharmaceuticals and natural products.
Dual Carbon-Carbon Bond-Forming Reactions with a Single Catalyst
In the first study, led by Professor Do Hyun Ryu’s research team at SKKU in collaboration with Professor Hyunwoo Kim’s team at KAIST, scientists created a unified catalytic platform that promotes two different carbon–carbon bond-forming reactions using just one chiral organic catalyst, as reported by SKKU. The team achieved a highly selective asymmetric allylation reaction—which has historically been difficult to control—and successfully applied the same catalyst to the aldol reaction. According to SKKU, density functional theory calculations revealed how the single catalyst activates the desired reaction site while directing the three-dimensional structure of the resulting compounds. These products were subsequently utilized to synthesize biologically active natural products, including (+)-dimethyl citramalate.
Stereoselective Synthesis of Tetrahydrofuran Ring Structures
In the second study, Ryu’s team focused on constructing tetrahydrofuran ring structures from simple starting materials, as detailed by SKKU. Tetrahydrofuran, a five-membered ring featuring one oxygen atom, serves as an essential structural framework found across many pharmaceuticals and biologically active natural products. Traditional synthesis methods typically require starting materials that already possess a specific stereochemical structure. By deploying a chiral organic catalyst, the SKKU researchers bypassed this limitation to build multiple stereocenters from simple precursors lacking pre-existing stereocenters, according to SKKU. The team successfully applied this method to prepare a synthetic intermediate for (+)-altholactone, a natural product known for anticancer activity.
Implications for Pharmaceutical and Natural Product Synthesis
Both investigations share the fundamental objective of using chiral catalysts to precisely control reaction sites and three-dimensional molecular arrangements, which ultimately dictate a molecule’s properties and functions, according to SKKU. Professor Ryu noted that these advancements offer new possibilities for building complex molecular structures with greater precision and efficiency. Researchers expect these catalytic approaches will expand to a wider array of asymmetric reactions, providing valuable synthetic strategies for producing pharmaceuticals and natural products.