No abstract

No abstract

No abstract

naphthoquinone nucleus by treatment with an acid, a promoter and excess red lead. The 3ethyl, 3-re-propyl and 3-isopropyl derivatives of 2-methylnaphthoquinone were synthesized with the use of propionic, re-butyric, and isobutyric acid, respectively, and the structures were established by the preparation of identical sub-stances by the action of lead tetraacetate on 2ethyl, 2-re-propyl, and 2-isopropyl-l,4-naphthoquinone. The 3-re-heptyl, 3-benzyl, and 3-/3phenylethyl derivatives of 2-methyl-l,4-naphthoquinone were synthesized by the new method.

No abstract