SEARCH Articles Figures Tables Acetals and ketals to protect carbonyl groups Acetals and ketals, acyclic to protect carbonyl groups Acetals and ketals, cyclic monothio, to protect carbonyl groups Acetals and ketals, cyclic to protect carbonyl groups Bis acetals and ketals protect carbonyl groups Carbonyl group protection Dibenzyl acetals and ketals, to protect carbonyl groups Diethyl acetals and ketals, to protect carbonyl groups Ketal protecting group O-Methyl-S-phenyl acetals and ketals protect carbonyl groups Protecting group ketals Protection carbonyls