𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A new aldol reaction via cerium enolates

✍ Scribed by Tsuneo Imamoto; Tetsuo Kusumoto; Masataka Yokoyama


Publisher
Elsevier Science
Year
1983
Tongue
French
Weight
235 KB
Volume
24
Category
Article
ISSN
0040-4039

No coin nor oath required. For personal study only.

✦ Synopsis


Cerium enolates formed from cerium (III) chloride and lithium enolates undergo aldol reaction with ketones or sterically crowded aldehydes to afford the corresponding R-hydroxyketones in high yields.

Although much progress has been made in the cross-aldol reaction of various metal enolates with aldehydes, 1,2) the analogous coupling between two different


πŸ“œ SIMILAR VOLUMES


Aldol reactions of a cyclobutanone enola
✍ Glenn R. Clark; James Lin; Madelene Nikaido πŸ“‚ Article πŸ“… 1984 πŸ› Elsevier Science 🌐 French βš– 215 KB
A Short Synthesis of Azasugars via Aldol
✍ Roland Grandel; Uli Kazmaier πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 French βš– 528 KB

Aldol reaetionsof chelatedamino acid esterenolateswith chiral aldehydesgives rise to polyhydroxylated aminoacidain a highlystereoaelective fmhion.Theaeoxygenated aminoacidscanbe convertedinto polyhydroxylatedpipecolinicacids and azaaugarsby cyclizationusingthe Mitaunobu reaction.A interesting epimer