Aldehyde derivatives P 0190 Synthesis and Hydrogenation of Acetonylmalonaldehyde Bis(ethylene acetal) (III). -(VARTANYAN*, M. M.; MEDVEDEV, A. F.; UGRAK, B. I.; Russ. Chem. Bull. 55 (2006) 3, 583-584; Zelinsky Inst. Org. Chem., Russ. Acad. Sci., Moscow 117913, Russia; Eng.) -H. Toeppel 49-050