Gold shuttle

Acetic acid acts as a proton shuttle in gold-mediated acetylenic reactions, according to a team from the Russian Academy of Sciences, Moscow. Theoretical and experimental work lays bare the way in which carboxylic acid groups can assist in the proton transfer process in the thiolation of alkynes catalyzed by gold complexes. The discovery could open up gold catalysis as, opposed to nickel or palladium catalysis, as an invaluable and practical tool for fine organic chemistry, according to the team.