A short synthesis of (1S,2R)- and (1R,2R)-[1-2H]-glycerols
β Scribed by Jens Nieschalk; David O'Hagan
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 350 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0957-4166
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β¦ Synopsis
A straightforward three step route to (1S,2R)-and (1R,2R)-[2H]-glycerols la and lb is reported. The key asymmetric step involves an AD-mix-l~ dihydroxylation on deuterium labelled Z-and E-allyl benzoates 4a and 4b. The route should facilitate the use of [2H]-glycerols la-ld in high enantiomeric purity (95%ee) in biosynthesis investigations.
π SIMILAR VOLUMES
Addition of diethyl phosphite to 2,3-O-cyclohexylidene-D-glyceraldehyde catalyzed by triethylamine or fluorides led to ca. 35:65 mixtures of diethyl (IR,2R)-and (1S,2R)-2,3-O-cyclohexylidene-l,2,3trihydroxypropylphosphonates (4a) and (4b). Application of lithium diethylphosphonate only slightly impr