| 摘要 |
<p>A pyrogallol compound of formula I wherein R1, R2 and R3 each represent hydrogen or alkyl of 1-6 carbon atoms, or a salt thereof, is prepared by hydrolysing the corresponding 2,2,6,6-tetrachlorocyclohexanone or 2,2,6,6-tetra-bromocyclohexanone.</p> |
