Tetrahedron Asymmetry p. 2017 - 2023 (1997)
Update date:2022-08-16
Topics:
Chiffoleau-Giraud
Spangenberg
Rabiller
The ability of vinyl-β-D-galactoside as a donor in transglycosylation reactions catalysed by the β-glycosidase from Aspergillus oryzae using allylic alcohol and methyl-α-galactoside as acceptors is tested. A kinetic study made in comparison with another donor, the 2-nitrophenyl-β-D-galactoside, shows that the use of the latter leads at room temperature to better yields than those obtained from the former. A reverse situation is observed in ice at -7°C, conditions in which the yield for transglycosylation can be enhanced from 59% to 82% with methyl-α-galactoside as an acceptor.
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