SEARCH Articles Figures Tables 5,5-acetal ester Acetals rearrangement Acetate esters Ester rearrangements Esters ketenes Keten acetal Ketene acetal Ketene acetals rearrangement Ketene rearrangement Ketenes acetals Ketenes rearrangement Ketenes silyl acetals Silyl acetate Silyl ester Silyl ketene acetals Silyl ketene acetals rearrangement Silyl ketenes