A Novel Bifunctional Allyldisilane as a Triple Allylation Reagent in the Stereoselective Synthesis of Trisubstituted Tetrahydrofurans

Abstrakt

Stereo- and enantioselective syntehsis of trisubstituted tetráhydrofunranes was achieved by using asymmetric allylation of aldehydes with bifunctional allyldislanes in the presence of chiral N,N-dioxides as Lewis base catalysts.

Klíčová slova

• chiral bipyridine N,N'-dioxides
• asymmetric allylation
• enantioselective allylation
• aromatic-aldehydes
• N-oxides
• 2,3,5-trisubstituted tetrahydrofurans
• homoallylic alcohols
• alpha-adducts
• lewis-bases
• organocatalysts