SEARCH Articles Figures Tables Acetates addition Addition reactions acetalizations Additions acetal Diastereoselective addition Diastereoselective reaction Diastereoselective reactions Diastereoselectivity Diastereoselectivity reaction Keten acetal Ketene acetal Ketene acetals, addition Ketene reaction Ketenes acetals Ketenes addition Ketenes reactions Ketenes silyl acetals Silyl acetate Silyl ketene acetals Silyl ketene acetals, reaction Silyl ketenes Silyl ketenes, reactions Silylation reactions