文摘
Domino reactions were designed to allow the byproduct of an upstream reaction to be internally recycled to catalyze a downstream reaction in a one-pot tandem sequence. Nitroarene reduction by In0 generates an amine and InIII byproducts. Addition of aldehyde followed by Danishefsky’s diene or silyl ketene acetal provides access to dihydropyridin-4-ones or β-amino esters, respectively, in yields that are comparable or superior to the reported stepwise reactions.