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A short synthesis of (1S,2R)- and (1R,2R)-[1-2H]-glycerols

✍ 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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✦ 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.


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Synthesis of enantiomeric diethyl (1R,2R
✍ Andrzej E. WrΓ³blewski; Katarzyna B. Balcerzak πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 French βš– 540 KB

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