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CHEMICAL (ACHIRAL)
Zinc acetylacetonate (Zn(acac)2) is a catalyst for the coupling of aryl substituted allylic alcohols with β-dicarbonyl compounds,1 and of organoboranes with
organohalides; selective C-alkylation of β-diketones; preparation
of amino acid derivatives, ...aminomaleimides, and β-
trichloromethyleneamino diones. Zn(acac)2 is a widely available catalyst which
is prepared through the reaction of ZnSO4, acetylacetone and
NaOH, to give either the hydrate or the anhydrous zinc complex.5
Zn(acac)2 can perform two general types of reactions: (1) stoichiometric
reaction at the nucleophilic carbon of the zinc acetylacetonate,
and (2) catalytic reaction at the nucleophilic carbon
of other β-dicarbonyl substrates.
