The Gold-catalyzed Formal Hydration, Decarboxylation, and [4+2] Cycloaddition of Alkyne Derivatives Featuring L-2/Z-type Diphosphinoborane Ligands

摘要

The catalytic formal hydration of alkynes and decarboxylation of alkynoic acid were developed using a Au catalyst featuring a Z-ligand. Furthermore, the intramolecular [4+2] cycloaddition of the alkynoic acid-alkene derivative for the formation of the oxabicyclo[4.4.0] skeleton also proceeded.