Aldehydes were prepared from Grignard reagents in high yields using pentacarbonyliron as the carbonylating agent. This reaction was also found to be applicable to the synthesis of aldehydes-d.

Tetracarbonylhydridoferrate was found to be effective for the selective reduction of α,β-unsaturated carbonyl compounds to the corresponding saturated alcohols. The reactions proceeded stereospecifically and (−)- and (+)-neodihydrocarveol were obtained exclusively from (+)- and (−)-carvone respectively. The reaction mechanism is briefly discussed.

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Die Aldehyde (II) werden aus den Grignard‐Verbindungen (I) mit Fe(CO)5 als Carbonylierungs‐ Reagenz synthetisiert (Mechanismus).