Brønsted Acid Catalyzed Asymmetric Propargylation of Aldehydes
作者:Pankaj Jain、Hao Wang、Kendall N. Houk、Jon C. Antilla
DOI:10.1002/anie.201107407
日期:2012.2.6
Which gets activated? A versatile and highly enantioselective chiral Brønstedacidcatalyzed method for the propargylation of aldehydes is described to provide a range of chiral homopropargylic alcohols. Computational studies support the belief that the chiral phosphoric acid activates the allenyl boronic acid pinacol ester reagent rather than the aldehyde.