Hydroacylation of 2-butyne from the alcohol or aldehyde oxidation level via ruthenium catalyzed C–C bond forming transfer hydrogenation
作者:Vanessa M. Williams、Joyce C. Leung、Ryan L. Patman、Michael J. Krische
DOI:10.1016/j.tet.2009.03.068
日期:2009.6
alkyne 4a couples to alcohol 1d or aldehyde 2d in good yield to deliver enone 3k as a 5:1 mixture of regioisomers. Thus, intermolecular alkyne hydroacylation is achieved from the alcohol or aldehyde oxidation level. In earlier studies employing the same ruthenium catalyst under slightly different conditions, alkynes were coupled to carbonyl partners from the alcohol or aldehyde oxidation level to furnish