Synthesis of the Substituted Z-1-Bromo-1-alkenes and Arylacetylenes from 2,3-Dibromocarboxylic Acids
Stereoselectivity was studied of simultaneous debromination-decarboxylation of dibrominated cinnamic and acrylic acids. The best selectivity in formation of Z-vinyl bromides was achieved with the use of organic nitrogen bases. The 1-bromo-1-alkenes were converted into the corresponding acetylenes.