Potassium Carbonate → 2-Methyl-1,6-dioxaspiro[4.4]nonane-2-carbaldehyde

Participants

Reaction Steps

To a cooled and stirred solution of 8.80 g of 85% m-chloroperbenzoic acid in 120 ml of methylene chloride was added 6.16 g of 8-methyl-1,6-dioxaspiro[4.5]dec-7-ene in 20 ml of methylene chloride. The exothermic reaction was kept below 15° C. After 15 minutes, the mixture was poured into 600 ml of saturated potassium carbonate. The resulting organic layer was then washed with aqueous base, dried and distilled to yield 4.37 g of the desired product as a colorless liquid, b.p. 65°-70° C. (1 torr.).

Provenance & Evidence