在线英语听力室_免费在线英语听力学习网站

This is Scientific American’s 60-Second Science, I’m Steve Mirsky. Got a minute?

The 2010 Nobel Prize in Chemistry goes to the University of Delaware’s Richard Heck, Purdue’s Ei-ichi Negishi and Hokkaido University’s Akira Suzuki for their work in developing new ways to synthesize complex organic molecules¹ by way of what are called palladium-catalyzed cross-couplings.

Two organic compounds that ordinarily would not readily react with other easily both bond to an atom of palladium. Carbon atoms on the two molecules, now in close proximity², bond to each other, forming a new compound.

Biochemist Lars Thelander at the announcement from the Royal Swedish Academy of Sciences: “Palladium-catalyzed cross-coupling has made it possible to synthesize carbon based molecules, for example, new medicines, agricultural chemicals and organic compounds used in the electronics industry.”

A prime example is discodermalide, produced naturally by a marine³ sponge, but in very small quantities. After it was found to have anti-tumor properties, large quantities were able to be made using palladium-catalyzed cross-coupling.

Thanks for the minute, for Scientific American’s 60-Science, I’m Steve Mirsky.