Butanal → HCID 23450598, compound

Participants

Reaction Steps

1.8 g 2,2,6,6-tetramethyl-piperidin-4-ol (intermediate product of Ciba Specialty Chemicals Inc.) are suspended in 7 ml of toluene. 2.3 g of a 40% solution of peracetic acid in acetic acid are added at 0° C. and the reaction mixture is stirred at room temperature for 3 h. 4.2 ml butanal and 2.4 ml of a 30% aqueous hydrogen peroxide solution are added, followed by 50 mg CuCl after 15 min. The reaction mixture is stirred for 1.5 h at room temperature to give a greenish emulsion. The two phases are separated and the organic one is washed with 10% ascorbic acid solution, water, diluted sodium carbonate sol., diluted sodium chloride sol., and saturated sodium chloride sol. The organic phase is dried over sodium sulfate and finally evaporated to complete dryness under vacuum to afford 1.3 g product.

Provenance & Evidence