| 摘要 |
1,192,708. Nitroso substituted diphenylamine. RHONE-POULENC S.A. 19 Sept., 1968 [20 Sept., 1967], No. 44668/68. Heading C2C. [Also in Division C3] The invention relates to N-nitroso-4,4<SP>1</SP>-bis- (2-phenylisopropyl)-diphenylamine. The compound may be prepared by dispersing the 4,4<SP>1</SP>- bis - (2 - phenylisopropyl) - diphenylamine in water and adding sodium nitrite and a strong inorganic acid. |
