Recently, we reported the synthesis of 1, 2-O-protected L-threitols from L-ascorbic acid. 2 While these and their D-isomers are easily obtained from D-and L-tartaric acids, the same is not true for the chiral erythritols, which are derivable from meso-tartaric acid. In this paper we now dascribe the hitherto unknown, 1, 2 (R)-O-isopropylidene-and 1, 2 (R)-O- benzylideneerythritols from D-isoascorbic acid. 3 These versatile intermediates were used ...
![4-[1,2-bis(phenylmethoxy)ethyl]-2-phenyl-1,3-dioxolane Structure](https://image.chemsrc.com/caspic/437/114185-01-2.png)
