Abstract
A convenient and scalable synthesis of enantiomers of butane-2,3-diacetal-protected
glyceraldehyde was accomplished from d -mannitol
and l -ascorbic acid, respectively. The R -aldehyde was additionally converted
to the (R ,R )-butane-2,3-diacetal
glycolic acid building block 1 .
Key words
diacetal - glyceraldehydes - α-hydroxy
acid -
d -mannitol -
l -ascorbic acid
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