| 摘要 |
5-Amino-1,2,3,4-tetrahydroanthraquinone was prepd. by the liq. phase redn. at 60-130≦̸C of 5-nitro-1,2,3,4-tetra hydroanthraquinone. Thus, 0.02 g Pd/C(5% Pd) was added to 2 g 5-nitro-1,2,3,4-tetrahydroanthraquinone and heated at 100≦̸C, 10 bar. The mixt. reacted at 100≦̸C, 2.5 hr and filtered to give 16.5 g 5-amino-1,2,3,4- tetrahydroanthraquinone(m.p. ; 190-192≦̸C).
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