L-tartaric acid is a quite useful four-carbon building block for monosaccharide synthesis. The versatility can be reinforced by the coupled use of stereoselective addition reactions where the suitable choice of organometallics leads to highly anti-selective additions. The building block is particularly useful in the synthesis of rare sugars the versatility of which is demonstrated by the synthesis of some
THE STEREOSELECTIVE SYNTHESIS OF L-TAGATOSE—AN APPLICATION OF Zn(II) MEDIATED HIGHLY STEREOSELECTIVE ADDITION OF 2-FURYLLITHIUM TO POLYOXYGENATED ALDEHYDE—
作者:Teruaki Mukaiyama、Yoichi Yuki、Keisuke Suzuki
DOI:10.1246/cl.1982.1169
日期:1982.8.5
presence of ZnBr2, the addition of 2-furyllithium to 4-O-benzyl-2,3-O-isopropylidene-L-threose proceeded in a highly stereoselective manner to afford the anti-adduct, which was further converted to L-tagatose.