Chemoselective hydroboration of alkynes vs. alkenes over gold catalysts

摘要

Alkynes are preferentially hydroborated in the presence of alkenes vrhen using gold catalysts; the active species involves a borane-gold interaction.rnGold catalysis has emerged in the last few years as a powerful tool to perform known and new reactions. In particular, gold has turned out to be an extremely active catalyst for the activation of unsaturated C-C bonds.