Michael addition is conjugate addition i.e., 1−4 addition. The substrates of the reaction that are involved are the compounds like α,β−unsaturated carbonyl compounds, esters, cyanides, quinones and α,β−unsaturated nitro compounds. The reagent must have at least one acidic hydrogen and must be converted into electrophile in the presence of bases like OH,OR, secondary amine etc.
In the following reaction, the product formed is: CH2=CH−O||C−CH3+CH3−CH2−NO2[(CH3)2CH]2NH−−−−−−−−−−→CHCl3