2001 furan derivatives

furan derivativesR 0060

15 - 112Chiral Sulfonamide Induced Enantioselective Protonation of Samar-ium Enolate in the Reaction of α,β-Unsaturated Ester with Ketone.— SmI2-Induced reductive coupling in the presence of chiral proton sourcesgives chiral α,γ-substituted-γ-butyrolactones (III) and (V)/(VI) with up to84% e.e. — (WANG, WEI; XU, MING-HUA; LEI, XIN-SHENG; LIN,GUO-QIANG; Org. Lett. 2 (2000) 24, 3773-3776; Shanghai Inst. Org. Chem.,Chin. Acad. Sci., Shanghai 200032, Peop. Rep. China; EN)

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