Diphenyl Etherを基核とするAcid Hydrazide誘導体の合成研究 (第5報)

Diphenyl Ether誘導体のHydrazine Hydrateに依る開裂反応 その3

抄録

3-Nitrodiphenyl ether derivatives do not undergo cleavage of the ether-bond oxygen by hydrazine hydrate, irrespective of the kinds of the substituent present in the benzene ring not possessing the nitro group or of the position of such a substituent, and only the reduction of the nitro group occurs, forming the corresponding 3-aminodiphenyl ether derivatives. 2, 4-Dinitrodiphenyl ether derivatives (VI) undergo cleavage' by hydrazine hydrate and afford 2, 4-dinitrophenylhydrazine (VII), and a small amount of 1-hydroxy-6-nitrobenzotriazole (VIIa) formed by the dehydration of (VII) and p-hydroxybenzene derivative (VIII).