抄録
Ozonic oxidation of des-N-methyl-tetrahydrodesoxynupharidine (I) afforded 3-tetrahydrofurylformaldehyde (II) and 3-tetrahydrofuroic acid (III). On the other hand, the bis-ammonium salt (V), obtained by heating diiodonupharane (IV) with trimethylamine, was treated with silver oxide and heated to give nupharadiene (VI). Oxidation of the ozonolytic product of (VI) with potassium permanganate or with lead dioxide respectively afforded 4, 8-dimethylnonanoic acid (X) or 5, 9-dimethyldeca-noic acid (XIII). Based on these reaction products, the formula (XIV) is forwarded for anhydronupharanediol.
