Six 2-haloacetoxyacrylic esters,namely,methyl and ethyl 2-fluoroacetoxyacylates(Ⅵa,b),methyl and ethyl 2-chloroacetoxyacrylates(Ⅵc,d),and methyl and ethyl 2-dichloroacetoxyacrylates(Ⅵe,f),have been synthesized and characterized.The synthesis consists of:(1) acylation of methyl and ethyl 2-hydroxy-3-chloropropionates(Ⅳa,b),with haloacetyl chlorides to the corresponding 2-haloacetoxy-3-chloropropionic esters(Ⅴa-f),and(2) dehydrochlorination of the acylated compounds with triethylamine to give the desired esters.