This substrate (erythro-threo mixture) was transformed to cis-diol z2s3 and up to 15% of another cyclic diol, presumably 3, upon treatment with OV (OEt) 3 (CH2C12, room temperature, 10 h). We were unable to detect frans-diols or either starting epoxy alcohol diastereomer. Furthermore, examination4 of the reaction mixture before disappearance of the epoxy alcohols revealed that the epoxylinalool remaining was substantially enriched ...
