Sustainable Synthetic Methods: Domino Construction of Dihydropyridin-4-ones and β-Amino Esters in Aqueous Ethanol
摘要:
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 In(0) generates an amine and In(III) byproducts. Addition of aldehyde followed by Danishefsky's diene or silyl ketene acetal provides access to dihydropyridin-4-ones or,beta-amino esters, respectively, in yields that are comparable or superior to the reported stepwise reactions.
Solid phase synthesis of 2,3-dihydro-4-pyridones: Reaction of Danishefsky's diene with polymer-bound imines
作者:Yihan Wang、Stephen R. Wilson
DOI:10.1016/s0040-4039(97)00824-1
日期:1997.6
An efficient method for the construction of 2,3-dihydro-4-pyridones on solid support has been developed, which utilized the Lewis-acid catalyzed tandem Mannich-Michael reaction of Danishefsky'sdiene with polymer-bound aldimines.