Rhodium-Catalyzed Addition of α-Keto Acid Chlorides with Terminal Alkynes
作者:Taigo Kashiwabara、Masato Tanaka
DOI:10.1002/adsc.201100108
日期:2011.6
The addition reaction of α‐keto acid chlorides with terminalalkynes proceeds in the presence of (acetylacetonato)dicarbonylrhodium used as catalyst to afford synthetically versatile (Z)‐γ‐chloro‐α‐oxo‐β,γ‐unsaturated ketones regio‐ and stereoselectively.
The additionreaction of chloroacetyl chloride derivatives with terminal alkynes was found to be catalyzed by Rh(acac)(CO)(AsPh(3)) to afford (Z)-1,4-dichloro-3-buten-2-one derivatives, which displayed diverse reactivities in synthetic elaboration.