Abstract Substituted amides and esters of 3, 4, 4-trichloro-3-butenoic acid were prepared by reactions of its chloride with appropriate amines and alcohols. Treatment of 3, 4, 4-trichloro- 3-butenomorpholide and tert-butyl 3, 4, 4-trichloro-3-butenoate results in nucleophilic substitution of the internal chlorine atom with the morpholine residue, accompanied by prototropic allyl rearrangement.
