Results The lithium alkyls used were n-butyl-and tert-butyllithium. They were chosen because they are frequently used, they are commercially available, and they represent extreme examples of various lithium reagents (ie,, primary us. tertiary, unhindered vs. sterically hindered). Various typical aldehydes and ketones were used. The reaction products resulting from addition, reduction, and enolization were determined (Chart I). The ...
