Multiply unsaturated compounds are usually best named by the IUPAC nomenclature.
The research progress of indole with unsaturated compound of reaction;
"It may involve adding hydrogen at the sites of double or triple Bonds (see Bonding) to make them single Bonds (i.e., to saturate an unsaturated compound; see saturation), or to aromatic compounds to make them cyclic hydrocarbons."
A detailed discussion of amorphous alloy catalyst in hydrogenation of unsaturated compound is presented.
