反应详情

The starting 5-nitro-1,4,4a,9a-tetrahydroanthraquinone of formula II is known and can be prepared e.g. by Diels-Alder reaction of butadiene with 5-nitro-1,4-naphthoquinone. 5-Nitro-1,4-naphthoquinone can in turn be obtained e.g. by electrolytic oxidation of 1-nitronaphthalene or by nitration of 1,4-naphthoquinone.

1. customcan be prepared e.g.