SEARCH Articles Figures Tables A-halogen acetal A-halogen acetal Subject Acetals halogenation Acetals halogenation Benzylidene acetals, halogenation Ethyl acetate halogenated phenols Ethyl acetate halogenation Halogen Substituted Acetic Acids Halogenated acetals Halogenated acetals Halogenation cyclic acetal Halogenation palladium acetate