Michael Donor Definition:

The nucleophile in a Michael reaction.

Michael Donor Explained:

Michael addition is regarded as the nucleophilic addition of carbanions to αα, BB – unsaturated compounds. The base generates a carbanion from active methylene compound, which then adds to the ββ-carbon of the αα, BB – unsaturated compound to give another anion, which in turn takes a proton from alcohol to produce an enol. The enol tautomerizes to give a stable product, ketone.