Nobel Prize in chemistry awarded to Henri Kagan and Kenso Soai

Henri B. Kagan and Kenso Soai won the Nobel Prize in chemistry Wednesday for their discovery of “non-linear effects and autocatalysis in asymmetric organic synthesis.” Kagan discovered a new way of manipulating chemical reactions, allowing a greater excess of one of the mirror images to be created than was previously assumed possible. His discovery has been revolutionary for chemists who develop reactions for the manufacture of pharmaceuticals, flavours, scents and new materials. Meanwhile, Soai designed the first chemical reaction in which only one of the potential mirror images was formed. Other than life itself, no one had ever achieved this feat. The Soai reaction is one of the most spectacular chemical experiments ever conducted, the Nobel Committee for Chemistry said. “Henri Kagan and Kenso Soai have provided a solution to a chemical mystery that is over a century old: how homochirality can emerge spontaneously,” Heiner Linke, chair of the Nobel Committee for Chemistry, said in a news release. “The chemical reactions they have developed are spectacular.” Kagan, 95, born in France, is affiliated with Université Paris-Sud in Orsay, France, and Soai, born in Japan, with the Tokyo University of Science. The Royal Swedish Academy of Sciences announced the winner in Stockholm. Last year, three scientists won the chemistry Nobel for their development of new molecular structures that can trap vast quantities of gas inside, laying the groundwork to potentially suck greenhouse gases out of the atmosphere or harvest moisture from desert environments. This year’s prizes began with the Nobel for medicine, awarded Monday to three scientists whose work led to a tool that uses light to help unravel how the brain works. The physics award Tuesday recognized a scientist’s efforts to demystify a rare group of neutrinos. The literature prize is set to be awarded Thursday. After Friday’s peace prize is awarded, the Nobel Memorial Prize in Economic Sciences will be announced Monday. The prize money this year is 12 million Swedish kronor (about $1.2 million), whether for an individual, a small group of laureates or an organization.