What are the Woodward-Hoffmann rules?

Q: What are the Woodward-Hoffmann rules?


A: They are a set of organic chemistry rules that can predict the stereochemistry of pericyclic reactions.

Q: What kind of reactions are pericyclic reactions?


A: They are usually rearrangement reactions where the molecule is a ring, such as a benzene ring.

Q: Who developed the Woodward-Hoffmann rules?


A: The rules were written by Robert Burns Woodward, a chemistry professor at Harvard University, and Roald Hoffmann, a chemistry professor at Cornell University.

Q: Did Woodward share the Nobel Prize for his work on Woodward-Hoffmann rules?


A: No, he did not. He had already died two years before the prize was awarded, and the Nobel Prize is typically only awarded to living people.

Q: Who shared the Nobel Prize with Hoffmann for their work on pericyclic reactions?


A: Kenichi Fukui also received the Nobel Prize in Chemistry for his work on a similar model.

Q: What other Nobel Prize did Woodward win?


A: Woodward had previously won a Nobel Prize in Chemistry for a different discovery.

Q: What recent paper describes how mechanical stress can reshape chemical reaction pathways?


A: A recent paper in the journal Nature describes this phenomenon, where mechanical stress can lead to products that seemingly violate the Woodward-Hoffmann rules.

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