Sulfuric Acid → 4-Hydroxybenzaldehyde

Participants

Reaction Steps

The procedure of Example 8 was followed except that the reaction of p-aminobenzaldehyde with sulphuric acid in 40% aqueous solution was effected at 120° C. for 15 minutes, to obtain 2.6 g (0.021 mol) of p-hydroxybenzaldehyde, accompanied with formation of tarry materials in large quantities. The yield of p-hydroxybenzaldehyde so obtained was 53%, based on the weight of p-aminobenzaldehyde used.

Provenance & Evidence