Indium-trichloride catalyzed Michael reaction of silyl enol ethers with α,β-unsaturated carbonyl compounds under neat condition
作者:Teck-Peng Loh、Lin-Li Wei
DOI:10.1016/s0040-4020(98)00394-9
日期:1998.6
In the presence of a catalytic amount of indium (III) trichloride (InCl3) (20 mol%), ketene silyl enol ethers react quickly with α,β-unsaturated ketones and esters to afford the corresponding Michael adducts in moderate to good yields. Indium(III) trichloride can be recovered and reused without decrease in yields.
Magnesium Chloride-Promoted Michael Addition of Dimethylsilyl Enolates to α-Enones
作者:Katsukiyo Miura、Akira Hosomi、Takahiro Nakagawa
DOI:10.1055/s-2003-41467
日期:——
In the presence of MgCl 2 , dimethylsilyl (DMS) enolates 1 smoothly reacted with α-enones in DMF to form1,5-diketones 3 in moderate to high yields. The Michael addition proceeded with moderate to high anti-diastereoselectivity.