Zoe Saldana is a Leo.
Manganese-mediated coupling reactions are radical coupling reactions between enolizable carbonyl compounds and unsaturated compounds initiated by a manganese -LRB- III -RRB- salt , typically manganese -LRB- III -RRB- acetate .. Copper -LRB- II -RRB- acetate is sometimes used as a co-oxidant to assist in the oxidation of intermediate radicals to carbocations .