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.
炔烃的双重反应性:金(I)催化的1,9和1,10-二炔环异构化可以有效合成中型环炔烃。提议这种稀有的炔烃-炔烃偶联是通过将乙炔金亲核加成到金(I)活化的炔烃上来进行的。