Ph. Lee et al., A novel nucleophilic substitution of in situ generated 3-tert-butyldimethyl-silyloxyalk-2-enylsulfonium salts with allylindium reagents, ORG LETT, 3(20), 2001, pp. 3205-3207
GRAPHICS
In situ generated 3-tert-butyidimethylsilyloxyalk-2-enylsulfonium salts der
ived from the reaction of alpha beta -enones with dimethyl sulfide in the p
resence of TBSOTf undergo a novel nucleophilic substitution with in situ ge
nerated allylindium reagents from indium and allyl halides to give silyl en
ol ethers of delta,epsilon -unsaturated ketones, which correspond to Michae
l addition products, in good yields.