oxidation
Posted by Pierre on July 18, 2004 at 18:30:40:
I was reading about coenzyme Q-10 yesterday. Being an antioxidant, ithas an oxidized form and an unoxidized form. Like lawsone, it is a
quinone (ubiquinone). (A quinone has a six-carbon ring with an oxygen
at two opposite places instead of hydrogen; thus it's a double ketone.)
In the unoxidized form, the two oxygens turn into -OH groups, and the
three double bonds float around the ring. In the oxidized form, the two
oxygens are =O, and the two double bonds are fixed in the ring.
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