
right|thumb|Before: Toluene is refluxed with sodium-benzophenone to dry and deoxygenate it. right|thumb|After: The deep blue coloration of the benzophenone ketyl radical shows that the toluene to be distilled is dry and oxygen-free. A ketyl group in organic chemistry is an anion radical that contains a group R2C−O•. It is the product of the 1-electron reduction of a ketone.
right|thumb|Before: Toluene is refluxed with sodium-benzophenone to dry and deoxygenate it. right|thumb|After: The deep blue coloration of the benzophenone ketyl radical shows that the toluene to be distilled is dry and oxygen-free. A ketyl group in organic chemistry is an anion radical that contains a group R2C−O•. It is the product of the 1-electron reduction of a ketone.
Another mesomeric structure has the radical position on carbon and the negative charge on oxygen. 200px|A ketyl
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).