formaldehyd in tetrahydrofuran Trans-n-PrOIr(CO)(PPh3)2 and paraformaldehyde are dissolved in THF and stirred ( 2 days, room temp.).; React. is monitored by IR and NMR. Removing of solvent yields yellow solid, chromy. on Florisil (eluant: THF/cyclohexane).;

formaldehyd in tetrahydrofuran Trans-n-PrOIr(CO)(PPh3)2 and paraformaldehyde are dissolved in THF and stirred ( 2 days, room temp.).; React. is monitored by IR and NMR. Removing of solvent yields yellow solid, chromy. on Florisil (eluant: THF/cyclohexane).;