Methods for the preparation of phenylacetylene, based on cinnamic acid (review)
This review systematizes literature data on methods for the preparation of phenylacetylene based on cinnamic acid, and also considers approaches to the synthesis of intermediate products: β-halostyrenes and 2,3-dibromo-3-phenylpropanoic acid. The stereochemical features of the ongoing transformations, as well as the mechanisms of the reactions, are discussed.