Polyhydroxyanthraquinone類の合成研究 (第2報)

Rhodocladonic Acid合成の試み その1

抄録

Starting with 2-methyl-1, 3, 6, 8-tetrahydroxyanthraquinone (III), formed by demethylation of 1-hydroxy-2-methyl-3, 6, 8-trimethoxyanthraquinone, attempt was made to synthesize rhodacladonic acid by (1) introduction of CH₂OH group into the 7-position of (III); (2) oxidation of CH₂OH group in 2-hydroxymethyl-1, 3, 6, 8-tetrahydroxyanthraquinone (VII), derived from (III); and (3) introduction of CH₃ or CHO group into 7-position of (VII). However, none of these reactions progressed.