p-Toluenesulfonic acid → HCID 20453979, compound

Participants

Reaction Steps

126 parts of isobutyraldehyde and 7 parts of p-toluenesulfonic acid are added in succession to a solution of 605.5 parts of n-octyl carbamate in 1,750 parts by volume of diethyl ether at 25° C., after which the temperature rises to 40° C. for one hour. After one day, the solid product which as crystallized out is filtered off with suction and fractionally distilled in the presence of 10 parts of p-toluenesulfonic acid and one part of hydroquinone. 298.3 parts of n-octyl N-(2-methyl-1-propenyl)-carbamate (75.1% yield, based on isobutyraldehyde employed) of boiling point 126° C./1 mbar are obtained, and 279.5 parts of n-octyl carbamate are recovered and can be re-used.

Provenance & Evidence