Fig. 6
From: Nickel-catalysed carbonylative homologation of aryl iodides
Control experiments. The experiments support the intermediacy of a benzylic carbonyl, which undergoes two-step reduction, and the necessity of the nickel catalyst for reduction. a Benzyl alcohol does not react under standard conditions. b Benzaldehyde undergoes homologation under standard conditions. c Diaryl ketone, observed as a reaction by-product, is reduced under standard conditions. d Diaryl alcohol is reduced under standard conditions. Nickel is required for the reduction of e diaryl ketone and f diaryl alcohol
