Über die Stereospezifität der α-Alkylier
✍
György Fráter
📂
Article
📅
1979
🏛
John Wiley and Sons
🌐
German
⚖ 233 KB
**About the Stereospecific α‐Alkylation of β‐Hydroxyesters** It was found, that dianions derived from β‐hydroxyesters with lithium diisopropylamide (LDA) at −50 to −20° were alkylated stereospecifically (__Scheme 1__). The stereospecificity was 95–98%, the __threo__‐compound (__threo__**‐2, ‐3** an