water in neat (no solvent) PrCHO and water added to Ru complex in vac., heated at 110°C in vac. for 2 h; evapd. in vac., solid washed with Et2O and hexane, recrystd. from toluene, dried in vac.;

water in neat (no solvent) PrCHO and water added to Ru complex in vac., heated at 110°C in vac. for 2 h; evapd. in vac., solid washed with Et2O and hexane, recrystd. from toluene, dried in vac.;