✦ LIBER ✦
Effects of acyl groups and ethanol ratios on lipase-catalyzed regioselective deacylation in peracylated methyl glycopyranosides
✍ Scribed by Kwo-Feng Hsiao; Fang-Lin Yang; Shih-Hsiung Wu; Kung-Tsung Wang
- Book ID
- 104632507
- Publisher
- Springer Netherlands
- Year
- 1995
- Tongue
- English
- Weight
- 408 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0141-5492
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✦ Synopsis
Regioselective ethanolysis of peracylated methyl l3, a-D-glucopyranoside and methyl a-D-mannopyranoside in anhydrous organic solvent (n-hexane/EtOI I L 99/l) could afford 6-OH derivatives exclusively by Can&& rugosu lipase (CRL,). No 4 + 6 acyl migration was observed in such an anhydrous solvent system. Substrates with propanoyl groups were more reactive than with acetyl groups on CRL-catalyzed reactions.