1,3-Butadiene → 1-Aminoanthraquinone

Participants

Reaction Steps

122 Grams of 5-nitro-1,4-naphthoquinone which contained 10% of the 6-nitro compound, 2800 grams of methyl cellosolve and 48 grams of 1,3-butadiene were charged into an autoclave and reacted at 90° C. for 2 hours. The reaction solution was allowed to stand for cooling and 1.2 grams of a 5% palladium on carbon catalyst was added thereto. Thereafter, the procedure of Example 4 was repeated to obtain 104 grams of 1-aminoanthraquinone containing therein 7% of 2-aminoanthraquinone.

Provenance & Evidence