S-Acetoxypropionic acid

S-Acetoxypropionic acid 2-Hydroxypropanoic acid acetate Acetyllactic acid... 

This standard was obtained in two ways. An asymmetric hydroformylation was run and the aldehyde was oxidized to S-a-acetoxypropionic acid. A comparison of the rotation obtained with the literature (19) for pure S-acid [a] )0 = -49.3°C (7.2, CHC13) was used to arrive at the 34.9°C figure for pure S-aldehyde. This number was checked using an NMR shift reagent. 

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