M. Mandel et al., FROM CHLOROBENZENE TO A CARBOHYDRATE IN 2 STEPS - A NEW CHEMOENZYMATIC SYNTHESIS OF 2,3-O-ISOPROPYLIDENE-D-ERYTHRURONOLACTONE, Collection of Czechoslovak Chemical Communications, 58(10), 1993, pp. 2517-2522
Controlled oxidation of chloroepoxide V with two equivalents of sodium
periodate furnished 2,3-O-isopropylidene-D-erythruronolactone (I) in
63% yield. This procedure was augmented by combining the protection of
diol III, the oxidation of acetonide IV to V, and the subsequent oxid
ative cleavage to I into one operation which yielded, on medium scale,
the title lactone in 51% yield. Detailed procedure of preparation and
physical constants are provided for lactone I.