Enantioselective Addition of Diethylzinc to Aldehydes Catalyzed by (1<i>R</i>,2<i>R</i>)-10-(Dialkylamino)isoborneols
作者:Toyohiko Aoyama、Yoshiyuki Hari
DOI:10.1055/s-2005-861788
日期:——
(1R,2R)-10-Dialkylaminoisoborneols, γ-amino alcohol-type ligands, were synthesized from (+)-ketopinic acid. Their catalytic ability as a chiral ligand for enantioselective addition of diethylzinc to aldehydes was evaluated. Among them, the ligand with a 9-azabicyclo[3.3.1]nonan-9-yl group as an amino moiety was the most effective and showed good enantioselectivity towards various aldehydes.