Propanoic acid, 3-(2-iodoethoxy)-, 1,1-dimethylethyl ester

Description

tert-Butyl 3-(2-iodoethoxy)propanoate is a PEG reagent containing an iodine group and a t-butyl ester. The iodine (I) acts as a good leaving group for nucleophilic substitution reactions. The t-butyl ester groups can be deprotected under acidic conditions.