New bicyclic γ- and δ-aminoalcohols as catalysts for the asymmetric diethylzinc addition to benzaldehyde
作者:Cecilia Olsson、Sara Helgesson、Torbjörn Frejd
DOI:10.1016/j.tetasy.2008.06.002
日期:2008.6
A newclass of chiral non-racemic γ- and δ-amino alcohols based on bicyclo[2.2.1]heptane and bicyclo[2.2.2]octane have been synthesized and used as catalysts in the asymmetric diethylzinc addition to benzaldehyde.
Three in one: Applying an organocatalytic tandem strategy to build a library of opticallyactive alkynyl, alkenyl, and ketone products, starting from cyclic enones and β‐keto sulfones, is shown to be rapid and efficient (see scheme; R=aryl, R′=H or alkyl).
三合一:从环烯酮和β-酮砜开始,应用有机催化串联策略建立光学活性炔基,烯基和酮产物的库是快速有效的(请参阅方案; R =芳基,R '= H或烷基)。