Diastereospecific addition of organometallics to (S)-2-alkoxy-1-(1,3-dithian-2-yl)-1-propanones and its application to the synthesis of (−)-trachelantic acid
Nucleophilic addition of organometallics to (S)-2-alkoxy-1-(1,3-dithian-2-yl)-1-propanones afforded preferentially (1R,2S)-2-alkoxy-1-alkyl-1-(1,3-dithian-2-yl)-1-propanols. The utility of the present reaction was demonstrated in the synthesis of (2R,3S)-trachelanthic acid.