Synthesis of (2<i>E</i>)-5-Phenylpent-2-en-4-ynoate
An effective method of the synthesis of ethyl (2 E )-5-phenylpent-2-en-4-ynoate based on the olefinationdehydrohalogenation of (2 Z )-2-iodo-3-phenylprop-2-enal has been developed. (2 Z )-2-iodo-3-phenylprop-2-enal was obtained by iodination of commercially available cinnamaldehyde.