反应详情

To 10 ml of acetic anhydride 2.0 g of 1,2,3,4-tetrahydro-4-hydroxy-1-naphthylurea (cis/trans) is added and the mixture stirred for 1 hour. The mixture is poured into water and the title compound collected by filtration. Evaporation of the mother liquor in vacuo affords additional title compound.

1. filtrationthe title compound collected by filtration
2. customEvaporation of the mother liquor in vacuo