reaction between ylide Ph3PCCO, amines and aldehydes is known to afford selectively (E)-α,β-unsaturated amides. We applied a variant of this methodology to the preparation of (2E,4Z)-dienamides 11 utilizing the phosphonium salt formation from ethyl 5-aminopentanoate hydrochloride and Ph3PCCO followed by deprotonation with DBU and a Wittigolefination of the corresponding ylide with various (Z)-α,β-unsaturated