Dipotassium iron tetracarbonyl

Dipotassium iron tetracarbonyl (catalyst) 3.7 Fe(CO)s 1 (1.5 mL, 11 mmol) was syringed into a degassed sol. of KOH (1.47 g, 26 mmol) in MeOH (15 mL). After 1 h stirring at 25°C the solvent was evaporated and the residue was stirred with THF (10 mL). The new solvent was evaporated and the operation repeated to remove MeOH. Finally, the residue was extracted with THF, filtered to remove KHCO3 to obtain a pale pink filtrate (90-95% yield). 

Dipotassium Iron tetracarbonyl in the synthesis of aldehydes and ketones from alkyl halides. 

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