Vl. Patrocinio et al., DIASTEREOSELECTIVE MICHAEL ADDITION OF NITROMETHANE TO ENOATES DERIVED FROM (R)-GLYCERALDEHYDE ACETONIDE, Synthesis, (5), 1994, pp. 474-476
The Michael addition of nitromethane to enoates derived from glycerald
ehyde acetonide leads to syn-adducts 3 with high diastereoselectivity
(de 76-90%). The stereochemistry of the new stereogenic center was det
ermined by transforming the Michael adduct 3b into lactone 6a.