Water → 4-Cyanobenzaldehyde

Participants

Reaction Steps

56.2 g of p-cyanobenzylamine, 59.6 g of hexamethylenetetramine, 46 ml of water, 320 ml of acetic acid and 46.0 g of 98% sulfuric acid were mixed and reacted at 100° C. for 2 hours while stirring. The reaction solution was concentrated to about a half amount in an evaporator and 400 ml of water was added to precipitate crystals. The crystals precipitated were collected by filtration, washed with water and dried to obtain 43.8 g (yield: 78%) of p-cyanobenzaldehyde. The purity was 99.8% or more.

Provenance & Evidence