SEARCH Articles Figures Tables Aldol addition Aldol additions simple diastereoselectivity Aldol diastereoselective Diastereoselective Aldol-Type Additions Diastereoselective addition Diastereoselectivity aldols Propionate aldol addition diastereoselective Silyl enol ethers diastereoselective aldol additions Silyl ketene acetals diastereoselective aldol additions