## Abstract In contrast to porcine pancreatic lipase (PPL), the serine proteases aP 41 and thermitase are suited as catalysts for the enantioselective ester hydrolysis of methyl (π)‐2,3‐__O__‐isopropyl‐ideneglycerate (__rac__‐1). These enzymes allow the preparation of methyl (__S__)‐(−)‐2,3‐__O__‐i
Synthesis of methyl (±)-2,3-O-isopropylideneglycerate by electrochemical oxidation of (±)-1,2-O-isopropylideneglycerol
✍ Scribed by Schwarz, Karl-Heinz ;Kleiner, Katharina ;Ludwig, Ralf ;Schrötter, Eberhard ;Schick, Hans
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 186 KB
- Volume
- 1991
- Category
- Article
- ISSN
- 0947-3440
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✦ Synopsis
Abstract
The anodic oxidation of (±)‐1,2‐O‐isopropylideneglycerol at a silver/silver oxide electrode with a controlled potential of +0.9 V vs. SCE in 2.5 N sodium hydroxide affords sodium (±)‐2,3‐O‐isopropylideneglycerate in a yield of 75%. Treatment of this salt with dimethyl sulfate and potassium carbonate in boiling acetone leads to methyl (±)‐2,3‐O‐isopropylideneglycerate in a yield of 81%.
📜 SIMILAR VOLUMES
2-C-Methylglyceraldehyde derivatives are among the simplest branchedchain chiral synthons and both the (R)-enantiomer and the (S)-enantiomer 'To whom correspondence should be addressed. \*The temperature reported in ref. 4 must be revised.
Syntheses of the title glycosides are described. The critical O-glycosylations were carried out in the presence of boron trifluoride etherate with a high degree of alpha-selectivity.