An Unusual Access to Medium Sized Cycloalkynes by a New Gold(I)-Catalysed Cycloisomerisation of Diynes
作者:Yann Odabachian、Xavier F. Le Goff、Fabien Gagosz
DOI:10.1002/chem.200901312
日期:2009.9.14
Dual reactivity of alkynes: The gold(I)‐catalysed cycloisomerisation of 1,9‐ and 1,10‐diynes allows the efficient synthesis of medium‐sized cycloalkynes. This rare alkyne–alkyne coupling is proposed to proceed by the nucleophilic addition of a gold acetylide to a gold(I)‐activated alkyne.