| 摘要 |
1,129,094. Phenylazothioformamide-S-oxides. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 8 Oct., 1965 [10 Oct., 1964], No. 42769/65. Heading C2C. [Also in Division A5] The invention comprises compounds of the formula where R is hydroxy, alkyl, alkoxy or alkyl-mercapto, n is 0-3, m is 0-3 and n + m is 0-3. The compounds are prepared by oxidizing a compound of the formula Hydrogen peroxide may be used as the oxidizing agent. Products specified include phenylazothioformamide-S-oxide and the corresponding 4-chloro-4-methyl- and 4-methoxy-derivatives. |
