Direct Carbocyclization of Aldehydes with Alkynes: Combining Gold Catalysis with Aminocatalysis
作者:Jörg T. Binder、Benedikt Crone、Timm T. Haug、Helge Menz、Stefan F. Kirsch
DOI:10.1021/ol800092p
日期:2008.3.1
A combination of gold(l) complexes and amine bases catalyzes the 5-exo-dig cyclization of formyl alkynes. This direct alpha-functionalization of aldehydes with unactivated alkynes does not involve the use of preformed enol equivalents.