| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject compound in high yield by oxidizing nitroxylene in a lower fatty acid solvent in the presence of a cobalt catalyst and an initiator with an oxygen-containing gas. SOLUTION: This compound of formula II is obtained by oxidizing (A) 4- nitro-m-xylene of formula I in (B) a fatty acid solvent e.g. acetic acid, propionic acid or butyric acid in the presence of (C) a cobalt catalyst e.g. cobalt naphthenate, cobalt acetylacetonate or lower fatty acid cobalt salt such as cobalt acetate and (D) an initiator e.g. 2-butanone, 4-methyl-2-pentanone or acetaldehyde with (E) an oxygen-containing gas (e.g. air). In above mentioned reaction, it is preferable to use 1.0-5 weight times component B, 0.001-0.2 mol times component C and 0.5-3.0 mol times component D based on the component A.
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