高級脂肪酸のヒドロキサム酸の金属錯塩に関する研究 (第5報)

大風子酸 (Hydnocarpic AcidおよびChaulmoogric Acid) のヒドロキサム酸の製造およびそれらヒドロキサム酸のFe (III) 錯塩に関する研究 その1

抄録

Hydnocarpic and chaulmoogric acids present as the main effective principles in various kinds of hydnocarpus oil were prepared. Hydnocarpic acid, d-11-(2-cyclopentenyl) undecanoic acid, was obtained as hydrocarpohydroxamic acid, m. p. 76-77.5°, [α]_D²²+75°, and chaulmoogric acid, d-13-(2-cyclopentenyl) tridecanoic acid, as chaulmoogrohydroxamic acid, m. p. 83-84.5°, [α]_D²²+64°. The complex salts formed from these hydroxamic acids by reaction with ferric chloride are the most stable in dehyd. alcohols and the ultraviolet absorption spectra shown in Fig. 1 indicated the formation of four types of complex salts in dehyd. ethanol.